TNT 12000 - Flukeassets.fluke.com/manuals/tnt12000umeng0300.pdf · The TNT 12000 X-Ray Test device...

TNT 12000 X-Ray Test Device

Users Manual

PN 1320001001 April 2008, Rev. 3, 4/09 © 2008, 2009 Fluke Corporation, All rights reserved. Specifications are subject to change without notice. All product names are trademarks of their respective companies.

Warranty and Product Support Fluke Biomedical, Radiation Management Services* products are warranted against defects in material and workmanship. • Instruments: Warranted for one year from date of shipment. The warranty for instruments that

require calibration may be extended each year by the GCL Extended Warranty Program.

• Phantoms: Warranted for 6 months from date of shipment. The warranty excludes

disposable phantoms. • CLEAR-Pb®: Warranted for 6 months from date of shipment against defects in material and

workmanship. • Software: Warranted for 90 days that it will perform substantially in accordance with its

documentation. • Consumables: Not covered under warranty.

During the warranty period, Fluke Biomedical will, at its discretion, either repair or replace the component or product that proves to be defective upon the company’s examination. Repairs are limited to those components pertaining to functionality and not cosmetic appearance. The limited warranty becomes void if the product is disassembled, modified or repaired by an unauthorized person or facility, or if the product’s functionality is impaired by damage, abuse or failure to use and maintain the instrument according to the manufacturer’s instructions. To exercise this warranty, the owner must write or call a Fluke Biomedical customer service representative to receive a Service Return Authorization (SRA). The owner must send the product, transportation prepaid, to a specified service facility. Repairs will then be made, and the product will be returned to the owner with transportation (normal, service) prepaid. Repaired or replaced products are warranted for the balance of the warranty period. For products not covered by warranty, the part repaired has a warranty of 90 days. Warranty Limitations: There are no warranties expressed or implied, including without limitation any implied warranty of merchantability of fitness, which extend beyond that discretion of the face hereof. This express warranty excludes coverage of and does not provide relief for incidental or consequential damages of any kind or nature, including but not limited to loss of use, loss of sales or inconvenience. This exclusive remedy of the purchaser is limited to repair, recalibration or replacement of the instrument at the Company’s discretion.

Disclaimer Please Note: If an instrument is intended for the detection and measurement of ionizing radiation, it should be used only by persons who have been trained in the appropriate safety procedures to be followed in the presence of radiation and the proper interpretation of the instrument’s readings. Instruction and precautions contained in the manuals must be read before use and strictly followed. Failure to follow these instructions and precautions may result in inaccurate readings and/or user hazard. Battery and other preoperational checks should be performed prior to each use to assure that the instrument is functioning properly. * Includes products branded Nuclear Associates and Victoreen®. ©

Notices

All Rights Reserved © Copyright 2008, Fluke Biomedical. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language without the written permission of Fluke Biomedical.

Copyright Release Fluke Biomedical agrees to a limited copyright release that allows you to reproduce manuals and other printed materials for use in service training programs and other technical publications. If you would like other reproductions or distributions, submit a written request to Fluke Biomedical.

Unpacking and Inspection Follow standard receiving practices upon receipt of the instrument. Check the shipping carton for damage. If damage is found, stop unpacking the instrument. Notify the carrier and ask for an agent to be present while the instrument is unpacked. There are no special unpacking instructions, but be careful not to damage the instrument when unpacking it. Inspect the instrument for physical damage such as bent or broken parts, dents, or scratches.

Technical Support For application support or answers to technical questions, either email [email protected] or call 1-800- 850-4608 or 1-440-498-2560. Technical support is also available at http://global.flukebiomedical.com/busen/support/TechnicalSupport/default.htm.

Claims Our routine method of shipment is via common carrier, FOB origin. Upon delivery, if physical damage is found, retain all packing materials in their original condition and contact the carrier immediately to file a claim. If the instrument is delivered in good physical condition but does not operate within specifications, or if there are any other problems not caused by shipping damage, please contact Fluke Biomedical or your local sales representative.

Standard Terms and Conditions Refunds and Credits

Please note that only serialized products and their accessory items (i.e., products and items bearing a distinct serial number tag) are eligible for partial refund and/or credit. Nonserialized parts and accessory items (e.g., cables, carrying cases, auxiliary modules, etc.) are not eligible for return or refund. Only products returned within 90 days from the date of original purchase are eligible for refund/credit. In order to receive a partial refund/credit of a product purchase price on a serialized product, the product must not have been damaged by the customer or by the carrier chosen by the customer to return the goods, and the product must be returned complete (meaning with all manuals, cables, accessories, etc.) and in “as new” and resalable condition. Products not returned within 90 days of purchase, or products which are not in “as new” and resalable condition, are not eligible for credit return and will be returned to the customer. The Return Procedure (see below) must be followed to assure prompt refund/credit.

Restocking Charges Products returned within 30 days of original purchase are subject to a minimum restocking fee of 25 %. Products returned in excess of 30 days after purchase, but prior to 90 days, are subject to management approval. Additional charges for damage and/or missing parts and accessories will be applied to all returns.

Return Procedure All items being returned (including all warranty-claim shipments) must be sent freight-prepaid to our factory location. When you return an instrument to Fluke Biomedical, we recommend using United Parcel Service, Federal Express, or Air Parcel Post. We also recommend that you insure your shipment for its actual replacement cost. Fluke Biomedical will not be responsible for lost shipments or instruments that are received in damaged condition due to improper packaging or handling. Use the original carton and packaging material for shipment. If they are not available, we recommend the following guide for repackaging:

Use a double-walled carton of sufficient strength for the weight being shipped. Use heavy paper or cardboard to protect all instrument surfaces. Use nonabrasive material around all projecting parts. Use at least four inches of tightly packed, industry-approved, shock-absorbent material around the instrument.

Returns for partial refund/credit: Every product returned for refund/credit must be accompanied by a Return Material Authorization (RMA) number, obtained from our Customer Support Group at 1-800-850-4608 or 1-440-498-2564 or email [email protected].

Repair and calibration: To find the nearest service center, go to www.flukebiomedical.com/service, or In the U.S.A.: Cleveland Calibration Lab Tel: 1-800-850-4606 ext. 2564 Email: [email protected] Everett Calibration Lab Tel: 1-888-993-5853 Email: [email protected] In Europe: Eindhoven Calibration Lab Tel: +31-402-675300 Email: [email protected]

Certification This instrument was thoroughly tested and inspected. It was found to meet Fluke Biomedical’s manufacturing specifications when it was shipped from the factory. Calibration measurements are traceable to the National Institute of Standards and Technology (NIST). Devices for which there are no NIST calibration standards are measured against in-house performance standards using accepted test procedures.

WARNING Unauthorized user modifications or application beyond the published specifications may result in electrical shock hazards or improper operation. Fluke Biomedical will not be responsible for any injuries sustained due to unauthorized equipment modifications.

Restrictions and Liabilities Information in this document is subject to change and does not represent a commitment by Fluke Biomedical. Changes made to the information in this document will be incorporated in new editions of the publication. No responsibility is assumed by Fluke Biomedical for the use or reliability of software or equipment that is not supplied by Fluke Biomedical, or by its affiliated dealers.

Manufacturing Location The TNT 12000 X-Ray Test device is manufactured in Cleveland, Ohio by Fluke Biomedical, 6045 Cochran Rd., Cleveland, OH, U.S.A.

i

Table of Contents

Chapter Title Page

1 Introduction and Specifications......................................................... 1-1

Introduction........................................................................................................ 1-3 Features.............................................................................................................. 1-3 Unpacking and Inspection.................................................................................. 1-3 Storage ............................................................................................................... 1-4 General Safety Considerations........................................................................... 1-4

Symbols ......................................................................................................... 1-4 Warnings and Cautions.................................................................................. 1-4

RF Certification ................................................................................................. 1-5 United States.................................................................................................. 1-5 Canada ........................................................................................................... 1-6 Europe ........................................................................................................... 1-6 Japan.............................................................................................................. 1-6

Specifications..................................................................................................... 1-6 Instrument Familiarization................................................................................. 1-8 Battery Charging................................................................................................ 1-11 Accessories ........................................................................................................ 1-12

2 Operation ............................................................................................. 2-1 Introduction........................................................................................................ 2-3 Setting up the System ........................................................................................ 2-3

Communication between Display and Detector ............................................ 2-3 Wireless Zigbee Connection ..................................................................... 2-3 Wired USB Connection............................................................................. 2-4

Positioning the Detector ................................................................................ 2-5 Above Table X-ray Source........................................................................ 2-6 Below Table X-ray Source........................................................................ 2-6

Making Measurements....................................................................................... 2-7 Power Settings ................................................................................................... 2-12 Communications Settings .................................................................................. 2-13 System Settings.................................................................................................. 2-14

Radio Mode ................................................................................................... 2-14 Auto Settings............................................................................................. 2-15 Manual Settings......................................................................................... 2-16

TNT 12000 Users Manual

ii

User Defined Settings ............................................................................... 2-19 Default Settings......................................................................................... 2-20

Mammo Mode ............................................................................................... 2-21 Auto Settings............................................................................................. 2-22 Manual Settings......................................................................................... 2-23 User Defined Settings ............................................................................... 2-26 Default Settings......................................................................................... 2-27

Fluoro Mode .................................................................................................. 2-28 Auto Settings............................................................................................. 2-29 Manual Settings......................................................................................... 2-30 User Defined Settings ............................................................................... 2-32 Default Settings......................................................................................... 2-33

Dental Mode .................................................................................................. 2-33 Auto Settings............................................................................................. 2-34 Manual Settings......................................................................................... 2-35 User Defined Settings ............................................................................... 2-38 Default Settings......................................................................................... 2-39

Setting Date and Time ....................................................................................... 2-40

3 Using the PC Based Excel Add-In Software ..................................... 3-1 Introduction........................................................................................................ 3-3 Prerequisites....................................................................................................... 3-3 Setting up the System ........................................................................................ 3-4

Communication between Computer and Detector......................................... 3-4 Wireless Zigbee Connection ..................................................................... 3-4 Wired USB Connection............................................................................. 3-4

Positioning the Detector ................................................................................ 3-5 Excel Add-In Software ...................................................................................... 3-6

Installing the TNT 12000 Excel Add-In Software ........................................ 3-6 Uninstalling the TNT 12000 Excel Add-In software .................................... 3-7 Installing the TNT 12000 Vendor Class Driver ............................................ 3-9 Uninstalling the TNT 12000 Vendor Class Driver........................................ 3-11

Initializing the TNT 12000 Excel Add-In software ........................................... 3-13 Using the TNT 12000 Excel Add-In Functions ................................................. 3-14 Excel Add-In Templates .................................................................................... 3-16 Recording Measurements................................................................................... 3-17 Measurement Settings........................................................................................ 3-19

Radio Mode ................................................................................................... 3-19 Auto Settings............................................................................................. 3-20 Manual Settings......................................................................................... 3-20 User Defined Settings ............................................................................... 3-22 Default Settings......................................................................................... 3-22

Mammo Mode ............................................................................................... 3-23 Auto Settings............................................................................................. 3-23 Manual Settings......................................................................................... 3-24 User Defined Settings ............................................................................... 3-25 Default settings.......................................................................................... 3-26


Dental Mode .................................................................................................. 3-31 Auto Settings ................................................................................................. 3-31

Contents (continued)

iii

Manual Settings......................................................................................... 3-32 User Defined Settings ............................................................................... 3-33 Default settings.......................................................................................... 3-34

Evaluating Battery Status .............................................................................. 3-35 Click OK to close the Battery Status window.Power Settings .......................... 3-36 Downloading the kV Waveform........................................................................ 3-37 Printing Sheets and Reports ............................................................................... 3-38

Printing a Selected Sheet ............................................................................... 3-38 Printing Several Selected Sheets ................................................................... 3-38 Printing All Sheets......................................................................................... 3-38 Printing a Range of Sheets ............................................................................ 3-38

Modifying a Template ....................................................................................... 3-39

4 Maintenance, Service, and Calibration.............................................. 4-1 Maintenance....................................................................................................... 4-3

Avoiding Damage.......................................................................................... 4-3 Cleaning......................................................................................................... 4-3

Firmware Upgrade ............................................................................................. 4-3 Detector ......................................................................................................... 4-3 Display........................................................................................................... 4-5

Service and Calibration...................................................................................... 4-8

Appendices

A KV, Exposure, and Exposure Time Measurements..................................... A-1 B Warning and Error Messages ...................................................................... B-1 C Troubleshooting .......................................................................................... C-1 D Excel Template Help ................................................................................... D-1


iv

v

List of Tables

Table Title Page

1-1. Symbols.................................................................................................................. 1-4 1-2. Components of the Display .................................................................................... 1-9 1-3. Components of the Detector................................................................................... 1-10 1-4. Methods for Charging Tester Components ............................................................ 1-11 1-5. Battery Charging Status Indicator .......................................................................... 1-12 1-6. Standard Accessories ............................................................................................. 1-12 1-7. Optional Accessories.............................................................................................. 1-12 2-1. Measurement Screen Options................................................................................. 2-9 2-2. Order of Displayed Values..................................................................................... 2-11 2-3. Power Setting Screen Options................................................................................ 2-12 2-4. Establish Connection Screen Options .................................................................... 2-13 2-5. Radio Mode Auto Setting Screen Options ............................................................. 2-15 2-6. Radio Mode Manual Setting Screen Options ......................................................... 2-16 2-7. Radio Mode User Defined Screen Options ............................................................ 2-19 2-8. Radio Mode Default Setting Screen Options ......................................................... 2-20 2-9. Mammo Mode Auto Setting Screen Options ......................................................... 2-22 2-10. Mammo Mode Manual Setting Screen Options ..................................................... 2-23 2-11. Mammo Mode User Defined Screen Options ........................................................ 2-26 2-12. Mammo Mode Default Setting Screen Options ..................................................... 2-27 2-13. Fluoro Mode Auto Setting Screen Options ............................................................ 2-29 2-14. Fluoro Mode Manual Setting Screen Options........................................................ 2-30 2-15. Fluoro Mode User Defined Screen Options ........................................................... 2-32 2-16. Fluoro Mode Default Setting Screen Options ........................................................ 2-33 2-17. Dental Mode Auto Setting Screen Options ............................................................ 2-35 2-18. Dental Mode Manual Setting Screen Options........................................................ 2-35 2-19. Dental Mode User Defined Screen Options ........................................................... 2-38 2-20. Dental Mode Default Setting Screen Options ........................................................ 2-39 2-21. Set Date/Time Screen Options ............................................................................... 2-40 3-1. TNT 12000 Add-In Options................................................................................... 3-15 3-2. Establish Connection Window Options ................................................................. 3-19 3-3. Auto Settings: Radio Window Options.................................................................. 3-20 3-4. Manual Settings: Radio Window Options.............................................................. 3-21 3-5. User Defined Settings: Radio Window Options..................................................... 3-22 3-6. Default Settings: Radio Window Options .............................................................. 3-23 3-7. Auto Settings: Mammo Window Options .............................................................. 3-23


vi

3-8. Manual Settings: Mammo Window Options.......................................................... 3-24 3-9. User Defined Settings: Mammo Window Options................................................. 3-26 3-10. Default Settings: Mammo Window Options .......................................................... 3-26 3-11. Auto Settings: Fluoro Window Options................................................................. 3-27 3-12. Manual Settings: Fluoro Window Options............................................................. 3-29 3-13. User Defined Settings: Fluoro Window Options ................................................... 3-30 3-14. Default Settings: Fluoro Window Options............................................................. 3-31 3-15. Auto Settings: Dental Window Options................................................................. 3-31 3-16. Manual Settings: Dental Window Options............................................................. 3-32 3-17. User Defined Settings: Dental Window Options ................................................... 3-34 3-18. Default Settings: Dental Window Options............................................................. 3-34 3-19. Power Settings Window Options ........................................................................... 3-36 3-20. Download Waveform Window Options................................................................. 3-37

vii

List of Figures

Figure Title Page

1-1. Tester Display ........................................................................................................ 1-9 1-2. Tester Detector ....................................................................................................... 1-10 1-3. Methods for Charging Tester Components ............................................................ 1-11 2-1. Wireless Connection between Detector and Display ............................................. 2-4 2-2. USB Connection between Detector and Dsiplay ................................................... 2-5 2-3. Alignment Markings on the Detector..................................................................... 2-5 2-4. Setup for Above Table X-ray Source..................................................................... 2-6 2-5. Setup for Below Table X-ray Source ..................................................................... 2-7 3-1. Wireless Connection between Computer and Detector.......................................... 3-4 3-2. USB Connectrion between Computer and Detector............................................... 3-5 3-3. TNT 12000 Excel Add-In Menu and Toolbar........................................................ 3-13 3-4. Sample TNT 12000 Add-In Template ................................................................... 3-17


viii

1-1

Chapter 1 Introduction and Specifications

Title Page

Introduction........................................................................................................ 1-3 Features.............................................................................................................. 1-3 Unpacking and Inspection.................................................................................. 1-3 Storage ............................................................................................................... 1-4 General Safety Considerations........................................................................... 1-4

Symbols ......................................................................................................... 1-4 Warnings and Cautions.................................................................................. 1-4

RF Certification ................................................................................................. 1-5 United States.................................................................................................. 1-5 Canada ........................................................................................................... 1-6 Europe ........................................................................................................... 1-6

Specifications..................................................................................................... 1-6 Instrument Familiarization................................................................................. 1-7 Battery Charging................................................................................................ 1-11 Accessories ........................................................................................................ 1-12


1-2

Introduction and Specifications Introduction 1

1-3

Introduction The TNT 12000 X-Ray Test Device, hereafter referred to as the Tester, is a user-friendly system for quality assurance, calibration, and service measurements in diagnostic x-ray imaging systems. The TNT 12000 non-invasively measures kilovoltage, dose, dose rate, half value layer, and exposure time. The Tester includes the TNT 12000WD detector and the TNT 12000D display and offers both wireless (Zigbee) and wired (USB) communication between detector, display, and computer. • The detector contains a single array of solid-state sensors and filters, which are used

to measure kV, Dose, Half Value Layer (HVL), and exposure time over the entire diagnostic kV range (40–150 kV) and the entire mammographic kV range (22–50 kV).

• The display has the sophisticated electronics necessary to provide highly accurate, reproducible measurements. All of the measurement modes and options are displayed on the 320*240 Color LCD. The enter key and the four directional keys on the display control all functions. Internal rechargeable batteries power the detector and the display. The batteries can be charged using an ac adapter or by connecting to a computer via USB.

Features The features of the Tester are:

• Fast, easy measurement of X-ray system kVp, dose, dose rate, time and HVL • All measurements obtained from a single x-ray exposure • All measurements displayed after every exposure (no need to select specific

values to be measured) • Wireless (Zigbee) communication between detector and display or laptop • Ergonomic detector with camera tripod mounting receptacle for limitless

positioning flexibility The Tester also includes:

• Excel Add-in software to control the testing routine and categorize, display, and report the measurement results

• Protective carrying case

Unpacking and Inspection Do the following when unpacking the Tester to check for damage during shipment. There are no special unpacking instructions, but be careful not to damage the instrument when unpacking it. • Inspect the shipping carton for damage. If the shipping carton is damaged, carefully

continue unpacking the instrument and note any dents and scratches on the Tester. Save the damaged shipping carton and packing material for the carrier’s inspection.

• If there is no shipping damage, continue removing the Tester from the shipping case. Save the box and packing materials; they are needed when returning the Tester to Fluke for recalibration or future service.

• Verify that all items listed in the packing list have been received and are in good condition. See Accessories, below.


1-4

Note This box contains specifically designed foam inserts to ensure safe shipment of the Tester. Save these for future shipment of the unit for service or calibration

Storage If the system is to be stored, pack it in the original container, and keep it in an environment free of corrosive material, fluctuations in temperature and humidity, and vibration and shock.

General Safety Considerations Read the Users Manual before operating the Tester. Use should be limited to only those persons who have been trained in the proper interpretation of its readings and the appropriate safety procedures in the presence of radiation. The Tester is intended to be used for the detection and measurement of ionizing radiation. Although the equipment described in this manual is designed and manufactured in compliance with all applicable safety standards, certain hazards are inherent in the use of electronic and radiometric equipment. Warnings and Cautions are presented throughout this document to alert the user to potentially hazardous situations.

Symbols Table 1-1 describes the symbols associated with the Tester.

Table 1-1. Symbols

Symbol Description

X Hazardous voltage

W Important information; refer to manual.

• Complies with RoHS directives

P Conforms to European Union directives

; Conforms to relevant Australian EMC requirements

Ž Complies with Part 15 of the FCC rules

~ Do not dispose of this product as unsorted municipal waste. Go to Fluke’s website for recycling information.

Warnings and Cautions A Warning identifies hazardous conditions and actions that could cause bodily harm or death. A Caution identifies conditions and actions that could damage the Analyzer, the equipment under test, or cause permanent loss of data.

XW Warning To avoid possible electrical shock or personal injury, follow these guidelines:

Introduction and Specifications RF Certification 1

1-5

• Use this Tester only in the manner specified by the manufacturer.

• Do not use the product if it operates abnormally.

• Use only the ac adapter provided with the system.

• Ensure that the external power source is properly rated for the system.

W Caution To avoid damage to the Tester or adverse affects on its performance, follow these guidelines:

• Allow only qualified technical personnel to service the system.

• Do not expose the system to temperature extremes. Ambient temperatures should remain between 0 °C and 35 °C. System performance may be adversely affected if temperatures fluctuate above or below this range.

• Clean the system by gently wiping down with a clean, lint-free cloth dampened with a mild detergent solution. Do not immerse the unit in liquid.

RF Certification The TNT12000 contains radio transceivers that are used for wireless communication between Display and Detector. The transceivers operate in the 2.4 GHz frequency band with a maximum transmitting power of 1 mW. The transceivers have been tested and certified for use in various areas worldwide.

United States The transceivers used in the TNT12000 have been approved for use in the United States by FCC Part 15 certification, FCC ID: OUR-XBEE. The following statement accompanies the device: “Contains FCC ID: OUR-XBEE" The enclosed device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference and (2) this device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Re-orient or relocate the receiving antenna, increase the separation between the equipment and receiver, connect equipment and receiver to outlets on different circuits, or consult the dealer or an experienced radio/television technician for help.


1-6

W Warning

To satisfy FCC RF exposure requirements for mobile transmitting devices, a separation distance of 20 cm or more should be maintained between the antenna of this device and persons during device operation. To ensure compliance, operations at closer than this distance is not recommended. The antenna used for this transmitter must not be co-located in conjunction with any other antenna or transmitter.

Canada The transceiver used in the TNT12000 has been certified for use in Canada, IC certification number IC: 4214A-XBEE.

Europe The transceiver used in the TNT12000 conforms to European Union EMC Directive 2004/108/EC, ETSI EN 301 489-1 and EN 301 489-17; and R&TTE Directive 1999/5/EC, ETSI EN300 328.

Japan Japan ID: 005NYCA0378

Specifications The following are Tester specifications.

Physical Display Screen........................................................ 320X240 Color LCD Size

Display ............................................................... 6”X4.5”X1.75” Detector.............................................................. 6”X4.5”X1.75”

Weight Display ............................................................... 0.93 lb Detector.............................................................. 1.5 lb

Electrical Battery

Battery Type....................................................... Lithium-Ion, 3.7 V, 4000 mAh Battery Charging time ........................................ Approx. 5 hr Battery Discharge time....................................... Approx. 8 hr Battery Cutoff Voltage ........................................ 3.0 V

AC Adapter Input Voltage ...................................................... 100 V ac to 240 V ac Input Frequency ................................................. 50/60 Hz Input Current ...................................................... 0.5 A (rms) Output Voltage ................................................... +6 V dc Output Current ................................................... 2500 mA (max.)

Environmental Operating Temperature........................................... 0 ºC to 35 ºC Storage Temperature.............................................. -35 ºC to 50 ºC Operating Humidity ................................................. 20 % to 80 % RH (Non Condensing) Wireless Range....................................................... 100 ft (30 m)

Introduction and Specifications Specifications 1

1-7

Measurements kVp Units........................................................................ kVp Average (Average of peaks during a specified interval)

kVp Max (Highest peak during a specified interval) PPV (Peak Practical Voltage)

Ranges Radio/Fluoro/Dental Modes .................................... 40 kV–150 kV Mammo Mode

Mo/Mo ................................................................ 22 kV–35 kV (standard calibration) Rh/Rh ................................................................. 25 kV– 49 kV (optional calibration) Mo/Rh................................................................. 22 kV–40 kV (optional calibration) Mo/A................................................................... 22 kV– 49 kV (optional calibration) Rh/Al .................................................................. 25 kV–49 kV (optional calibration)

Resolution: .............................................................. 0.1 kV Accuracy (including calibration uncertainty) Radio/Fluoro/Dental Modes .................................... ±2 % or ±1 kV, whichever is greater Mammo Mode ......................................................... ±2 % or ±0.7 kV, whichever is greater Reproducibility ........................................................ ±1 % (standard deviation % of 5 readings) Filtration Correction Range Radio/Fluoro/Dental Modes .................................... 1–10 mmAl or equivalent Mammo Mode ......................................................... 0–0.4 mmAl or equivalent added filtration (0–0.2 mmAI below 25 kV) Dose/Exposure

Units........................................................................ Roentgens (R) Grays (Gy)

Range ..................................................................... 0.5 mR–999 R 5 mGy–999 Gy

Resolution ............................................................... 1 µR 0.01 µGy

Accuracy ................................................................. ±5 % Reproducibility ........................................................ ±0.5 % (standard deviation % of five readings) Filtration Correction Range

Radio/Fluoro/Dental Modes ............................... 10 mmAl or equivalent Mammo Mode .................................................... 0–0.4 mmAl or equivalent added filtration (0– 0.2 mmAI below 25 kV)

kV Correction Ranges Radio/Fluoro/Dental Modes ............................... 40 kV–150 kV Mammo Mode: Mo/Mo ....................................... 22 kV–35 kV

Dose/Exposure Rate

Units........................................................................ Roentgens per hour, minute, second, pulse (R/hr, R/min, R/sec, R/Pulse) Grays per hour, minute, second, pulse (Gy/hr, Gy/min, Gy/sec, Gy/Pulse)

Range ..................................................................... 8 mR/s–10 R/s 70 µGy/s–100 mGy/s 130 µR/Pulse–160 mR/Pulse (@ 60 PPS) 12 µGy/Pulse–1.4 mGy/Pulse (@ 60 PPS)

Resolution ............................................................... 1 µR/s 0.01 µGy/s 0.02 µR/Pulse (@ 60 PPS) 0.2 nGy/Pulse (@ 60 PPS)

Accuracy ................................................................. ±5 %


1-8

Filtration Correction Range Radio/Fluro/Dental Modes ................................. 1-10 mmAl or equivalent Mammo Mode .................................................... 0–0.4 mmAl or equivalent added filtration (0–0.2 mmAI below 25 kV)

kV Correction Range Radio/Fluro/Dental Modes ................................. 40 kV–150 kV Mammo Mode: Mo/Mo ....................................... 22 kV-35 kV

Exposure Time–Radiographic Modes

Range @ stated accuracy Milliseconds........................................................ 10–9999 ms Pulses ................................................................ 1–999 pulses

Resolution Milliseconds........................................................ 0.1 ms Pulses ................................................................ 1 pulse

Accuracy Milliseconds........................................................ 1 % or 0.5 ms Pulses ................................................................ ±1 pulse

Reproducibility Milliseconds........................................................ 1 % or 0.5 ms Pulses ................................................................ ±1 pulse

Elapsed Time–Fluoro Modes

Range ..................................................................... 10–9999 seconds Resolution ............................................................... 0.1 second Accuracy ................................................................. 1 % or 0.5 second Average Pulse Rate – Pulsed Fluoro

Range ..................................................................... 1–999 pps (pulses per second) Resolution ............................................................... 1 pps Accuracy ................................................................. 1 pps Average Pulse Width – Pulsed Fluoro

Range ..................................................................... 10–999 ms Resolution ............................................................... 0.1 ms Accuracy ................................................................. 1% or 0.5 ms HVL (Half Value Layer)

Range Radio/Fluoro/Dental Modes ............................... 1.2–10 mmAl (equivalent) Mammo Mode .................................................... 0.2–0.6 mmAl (equivalent)

Resolution Radio/Fluoro/Dental Modes ............................... 0.1 mmAl (equivalent) Mammo Mode .................................................... 0.01 mmAl (equivalent)

Accuracy Radio/Fluoro/Dental Modes ............................... ±10 % or 0.2 mmAl (equivalent) Mammo Mode: Mo/Mo ....................................... ± 5 % or 0.05 mmAl (equivalent)

Instrument Familiarization The Tester has two main components—the display and the detector. Figure 1-1 shows the display, and Table 1-2 describes its controls and indicators. Figure 1-2 shows the detector, and Table 1-3 lists its components with accompanying descriptions.

Introduction and Specifications Instrument Familiarization 1

1-9

RESET

1

3

2

4 5

6

7

89

10

fct02.eps

Figure 1-1. Tester Display

Table 1-2. Components of the Display

Label Name Description

A LCD panel 320X240 color display

B Battery status LED Tri color LED indicating the battery status of the display. Refer to Battery Charging for more details.

C On/Off Switch Powers the display On/Off

D Navigational Keys:

Left, Right, Up, and Down keys•

Moves the cursor through the menu options on the display screen in various directions.

Note: The cursor movement is circular

E Enter key Selects the menu option on the display screen

F Stand Display support stand

G Holster Protective cover for the display

H USB Connector To connect the detector or a Computer via USB cable

I AC adapter connector Connects the ac adapter

J Reset switch Resets the display

Note A short beep sounds for a valid key press, and a long beep sounds for an invalid key press.


1-10

RESET

1

2

3

45

67

8

9

fct01.eps

Figure 1-2. Tester Detector

Table 1-3. Components of the Detector

Label Name Description

A Exposure surface area The surface to be exposed to x-ray radiation

B Threaded Insert Secures the detector to a test stand, such as a camera tripod

C Holster Protective cover for the detector

D AC adapter connector Connects the ac adapter

E USB Connector Connects the Tester display or a computer via a USB cable

F Communication status LED Indicates the communication status

On: detector is connected to the display/Computer

Off: detector is not connected to the Tester display or a computer

Blinking: Scanning for the Tester display or computer

G Battery status LED Tri color LED indicating the battery status of the detector. Refer to Battery Operation and Charging for details

H On/Off Switch Powers the detector On or Off

Note: When the detector is connected to the display and is powered off, the detector also powers off

I Reset switch Resets the detector

Introduction and Specifications Battery Charging 1

1-11

Battery Charging Three methods for charging the internal rechargeable batteries of the display and detector units are shown in Figure 1-3 and described in Table 1-4.

OR

Power Source Computer to Power Source Detector to Display to Power Source

OR

fct10.eps

Figure 1-3. Methods for Charging Tester Components

W Caution To avoid damage to the Tester or adverse affects on its performance, use only the ac adapter provided with the instrument.

Table 1-4. Methods for Charging Tester Components

Method Description

Charging from ac power via the ac adapter Connect the ac adapter to the display or the detector and plug the ac adapter into a suitable power source.

Charging from the computer Connect the display or the detector to a computer through Mini-B to Type-A USB Cable

Note: See the marking on the ends of the cable to identify the Mini-B and Type-A ends.

Charging the detector from the display unit Connect the detector to the display via Mini-A to Mini-B USB cable. Then connect the display to the power source through the ac adapter and turn on the display.

Note: See the marking on the ends of the cable to identify the Mini-A and Mini-B ends.


1-12

The charging status is indicated by the color of the battery status LED, as shown in Table 1-5.

Table 1-5. Battery Charging Status Indicator

Color Description

Blue Display or detector is connected to a power source and the battery is fully charged.

Green Display or detector is connected to a power source and the battery is charging.

OFF Display or detector is not connected to a power source and is operating on battery power.

Yellow Display or detector battery has approximately 20% of charge left.

Red Display or detector battery has approximately 10% of charge left and will turn off in two minutes.

Accessories The following are accessories for the Tester. Table 1-6 lists standard accessories shipped with the tester. Table 1-7 lists optional accessories that must be ordered separately. To order, contact your Fluke Biomedical equipment dealer and use the Fluke Biomedical part numbers provided.

Table 1-6. Standard Accessories

Description Model Number

Quick Reference Guide TNT12QRG

Carrying Case 1320033000

Zigbee Dongle 90-183

Mini-A to Mini-B USB Cable 50-198

Mini-B to Type-A USB Cable 50-197

AC Adapter 14-445

TNT 12000 CD (contains software and manual) 1320003000

Table 1-7. Optional Accessories

Description Model Number

mA/mAs Meter 35035

Ansur Test Automation Software TA-TNT12K

2-1

Chapter 2 Operation

Title Page

Introduction........................................................................................................ 2-3 Setting up the System ........................................................................................ 2-3

Communication between Display and Detector ............................................ 2-3 Wireless Zigbee Connection ..................................................................... 2-3 Wired USB Connection............................................................................. 2-4

Positioning the Detector ................................................................................ 2-5 Above Table X-ray Source........................................................................ 2-6 Below Table X-ray Source........................................................................ 2-6

Making Measurements....................................................................................... 2-7 Power Settings ................................................................................................... 2-12 Communications Settings .................................................................................. 2-13 System Settings.................................................................................................. 2-14


Mammo Mode ............................................................................................... 2-21 Auto Settings............................................................................................. 2-22 Manual Settings......................................................................................... 2-23 User Defined Settings ............................................................................... 2-26 Default Settings......................................................................................... 2-27


Dental Mode .................................................................................................. 2-33 Auto Settings............................................................................................. 2-34 Manual Settings......................................................................................... 2-35 User Defined Settings ............................................................................... 2-38 Default Settings......................................................................................... 2-39

Setting Date and Time ....................................................................................... 2-40


2-2

Operation Introduction 2

2-3

Introduction The Tester has four operating modes, described below. • Radio Mode – used to make measurements on radiographic x-ray machines. Radio

mode simultaneously measures kVp Average, kVp Maximum, kV PPV, Dose, Average Dose Rate, Exposure Time, and HVL from a single radiographic exposure.

• Mammo Mode – used to make measurements on mammographic x-ray generators. Mammo mode simultaneously measures kVp Average, kVp Maximum, kV PPV, Dose, Average Dose Rate, Exposure Time, and HVL from a single mammographic exposure.

• Fluoro Mode – used to make measurements on fluoroscopic x-ray generators. Fluoro mode supports both Continuous fluoro and Pulsed fluoro measurements. Fluoro Mode measures kVp Average, kVp Maximum, kV PPV, Dose Rate, Accumulated Dose, Elapsed Time, Pulse Rate (for Pulsed Fluoro only), Pulse Width (for Pulsed Fluoro only), and HVL.

• Dental Mode – used to make measurements on Dental x-ray generators. Dental mode simultaneously measures kVp Average, kVp Maximum, kV PPV, Dose, Average Dose Rate, Exposure Time, and HVL from a single exposure.

Setting up the System The display and detector must communicate with each other, and the detector must be positioned properly with respect to the x-ray beam being evaluated. These setup procedures are described below.

Communication between Display and Detector The display and detector must be connected by a wireless connection or a USB connection.

Wireless Zigbee Connection To connect the display to the detector via wireless communication, turn on the display and the detector, keeping the detector within the range of the display, as depicted in Figure 2-1. When the wireless connection is established, the wireless icon ( ) appears on the display screen.


2-4

fct08.eps

Figure 2-1. Wireless Connection between Detector and Display

Wired USB Connection To connect the display to the detector via USB cable: 1. Turn on the display and the detector. 2. Connect the ends of a Mini-A to Mini-B USB cable to the USB ports of the display

and the detector as shown in Figure 2-2.

Note See the marking on the ends of the cable to identify the Mini-A and Mini-B ends. The USB icon (') appears on the display screen when the display and detector are connected via USB.

Operation Setting up the System 2

2-5

fct04.eps

Figure 2-2. USB Connection between Detector and Display

Positioning the Detector To ensure accurate measurements, alignment marking are placed on the top of the detector, as shown in Figure 2-3.

For radiographic and fluoroscopic measurements, center the beam on the RAD crosshairs and collimate the beam to the grey outlined area or larger.

For dental measurements, center the cone over the grey outlined area.

For mammographic measurements, center the beam on the MAMMO crosshairs and collimate the beam to the red outlined area or larger.

Dose measurement area for all modes.

fct09.eps

Figure 2-3. Alignment Markings on the Detector

The internal x-ray detector array is located 0.23″ (5.84 mm) below the top surface of the TNT 12000 WD.


2-6

Above Table X-ray Source To position the detector, align the detector, face up, on the beam center, with the long axis of the detector perpendicular to the x-ray tube axis (to eliminate Heel Effect), as shown in Figure 2-4.

Above TableX-Ray Tube

Tube Axis

TNT 12000WD

Long Axis of TNT 12000WD

X-Ray Table

fct05.eps

Figure 2-4. Setup for Above Table X-ray Source

Note The x-ray beam must be large enough to cover the active area of the detector. Although not critical, a 22-inch distance from focal spot to detector is suggested.

Below Table X-ray Source To position the detector, invert the detector, face down, and align on the beam center perpendicular to the axis of the x-ray tube, as shown in Figure 2-5.

Operation Making Measurements 2

2-7

Under TableX-Ray Tube

Tube Axis

TNT 12000WD

Long Axis of TNT 12000WD

X-Ray Table

fct06.eps

Figure 2-5. Setup for Below Table X-ray Source

Making Measurements The Tester measures kV, dose, exposure time, and HVL for all radiographic x-ray imaging modalities including Radiographic, Mammographic, Fluoroscopic, and Dental, and can measure kV for stationary mode CT. All kV measurements are automatically corrected for beam filtration; all dose measurements are automatically corrected for both kV and beam filtration. Automatic Waveform Analysis determines the appropriate data analysis methods for the measurement based on the waveform type and the type of x-ray machine. See KV, Exposure, and Exposure Time Measurements in Appendix A for additional details.

Measurement Procedure To make measurements: 1. Set up the system as described under Setting up the System, above. 2. Press the On/Off button to turn on the display and the detector. On power up, the

system does a self-test, and a boot up message appears on the screen. After boot up, the display software and hardware versions are displayed:


2-8

fct016.bmp

3. The display scans for the detectors present, and the ESTABLISH CONNECTION screen appears, showing the available detectors:

fct017.bmp

Note The Establish Connection screen displays only if multiple detectors are present; otherwise, the Measurement screen displays.

4. The Zigbee ( ) wireless or USB (') communication icon appears on the top right corner of the display screen, indicating the mode of communication between the display and detector. The battery status icon ( ) appears on the top left corner of the display screen.

Note: If no detectors are found, the No Detector Found screen displays. The display shuts down if detectors are not found within 10 minutes.


2-9

5. Select the desired detector from the drop-down list and select Connect/Always Connect. When a connection is established, the last selected settings are loaded, and the MEASUREMENT screen appears with a message:

fct020.bmp

MEASUREMENT screen options are described in Table 2-1.

Table 2-1. Measurement Screen Options

Button Function Description

Power Select to view the Power Setting screen to see the

battery status of the detector and change the display off time, low power time, system off time, and brightness.

Connection Select to scan for the detectors available. After

scanning, the Establish Connection screen appears to select the detector to make the connection with the display.

Mode Select to view the Mode Selection screen to select the measurement mode.

Settings Select to view the System Setups screen to select the

setting for the measurement mode

Date/Time Select to view the Date/Time screen to change Date

and Time of the system.


2-10

6. Select the Mode (Radio) option. The MODE SELECTION screen displays, showing the different modes:

fct025.bmp

7. Select the desired mode for measurement or select Cancel to return to the MEASUREMENT screen.

Note To change the target/filter or select another calibration, such as the AMX4 calibration, refer to the System Settings section for the measurement mode in use.

8. Select the Settings option. The SYSTEM SETUPS screen displays:

fct026.bmp

Auto, Manual, User defined, and Default setting options are available. 9. Select the desired option and edit the settings as required.

Note: Refer to the section, System Settings for personalizing different settings.


2-11

10. Make an exposure. The detector and the display beep, indicating a new exposure. The detector analyzes the exposure data and displays values, as shown below:

fct027.bmp

11. Use the up/down keys to scroll through the readings.

Note If a new exposure is made, the screen is refreshed with new readings.

For all measurements, values are displayed in the order shown in Table 2-2.

Table 2-2. Order of Displayed Values

Radio/Mammo/Dental Modes Fluoro Mode

Auto Setting Manual/Default Setting Auto Setting Manual/Default Setting

kVp Average

kVp Maximum

kV PPV

Dose

Average Dose Rate

mmAl (HVL)

Exposure Time

Waveform Type

Target/Filter

Time/Date

kVp Average

kVp Maximum

kV PPV

Dose

Average Dose Rate

mmAl (HVL)

Exposure Time

Target/Filter

Time/Date

kVp Average

kVp Maximum

kV PPV

Dose

Average Dose Rate

mmAl (HVL)

Exposure Time

Waveform Type

Pulse rate(only for Pulsed waveform)

Average Pulse Width (only for Pulsed waveform)

Target/Filter

Time/Date

kVp Average

kVp Maximum

kV PPV

Dose

Average Dose Rate

mmAl (HVL)

Exposure Time

Pulse rate(only for Pulsed Fluoro Mode)

Average Pulse Width (only for Pulsed Fluoro Mode)

Target/Filter

Time/Date


2-12

Power Settings When the Power option is selected on the Measurement screen, the POWER SETTING screen displays:

fct028.bmp

POWER SETTING screen options are described in Table 2-3.

Table 2-3. Power Setting Screen Options

Option Description

Detector Battery Status

Select the detector from the drop-down list to view its battery status. The Tester has the power saving feature in the form of Display Off Time, Low Power Time, and System Off Time. These are set on this screen.

Display Off Time When selected, a drop-down list appears that can be scrolled between 5 seconds and 99 seconds. Scroll and select the desired display off time. The display backlight is switched off if there are no measurements or if there is no key press for the set Display Off Time. The backlight turns on when any key is pressed or an exposure is made. Select the None option to keep the display backlight from going off at any time.

Low Power Time When selected, a drop-down list appears that can be scrolled between 2 minutes and 9 minutes. Scroll and select the desired low power time. All of the system circuitry goes to low power mode, and the measurements are disabled, if there are no measurements or if there is no key press for the set Low Power Time. The system comes out of low power mode when any key is pressed. Select the None option to restrict the Tester from going to low power mode at any time.

System Off Time When selected, a drop-down list appears that can be scrolled between 10 minutes and 99 minutes. Scroll and select the desired system off time. The system shuts down if there are no measurements or if there is no key press for the set System Off time. Press the On/Off key to restart the Tester. Select the None option to keep the Tester from shutting down at any time

Brightness When selected, a drop-down list appears that can be scrolled between 0 and 99. Scroll and select the desired display brightness.

Save Select to save the changes and go to the MEASUREMENT screen. Cancel Select to discard the changes made and go to the MEASUREMENT screen.

Operation Communications Settings 2

2-13

Communications Settings When the Communication option is selected on the MEASUREMENT screen, the display scans for the available detectors, and the ESTABLISH CONNECTION screen displays:

fct017.bmp

From this screen, the detector can be selected to connect to the display. Options are described in Table 2-4.

Table 2-4. Establish Connection Screen Options

Option Description

TNT 12000WD(2) Select the detector from the drop-down list. The number in parenthesis indicates the number of detectors available for connection. Last calibrated date, calibration due date, software version, and hardware version of the selected detector are displayed.

Connect Select to connect to the selected detector and go to the MEASUREMENT screen. Always Connect Select Always Connect to enable the particular detector to be connected

automatically on power on. The Zigbee or USB communication icon appears on the top right corner of the display screen, indicating the mode of communication through which the detectors are connected.

Note If no detector is selected in TNT 12000WD option, and the Connect/Always Connect option is selected, a Select Detector message is displayed.


2-14

System Settings All four modes have Auto, Manual, and Default settings. In addition, five user-defined settings can be created for each mode. The following sections explain the options and different settings in all of the measurement modes.

Radio Mode 1. From the MEASUREMENT screen, select the Mode (Radio) option. The MODE

SELECTION screen displays:

fct025.bmp

2. Select the Radio mode for measurement. The display returns to the MEASUREMENT screen.


fct026.bmp

Auto, Manual, User defined, and Default setting options are available. 4. Select the required setup for the measurement, as described below.

Operation System Settings 2

2-15

Auto Settings Auto waveform analysis is done in this mode of operation. The Auto waveform analysis icon ( ) appears on the top left corner of the MEASUREMENT screen while making measurements in the Auto mode. See KV, Exposure, and Exposure Time Measurements in Appendix A. Select the Auto option in the SYSTEM SETUPS screen. The AUTO setting screen displays:

fct030.bmp

AUTO screen options are described in Table 2-5.

Table 2-5. Radio Mode Auto Setting Screen Options

Option Description

Dose Units When selected, a drop-down list of dose units appears, from which R (Roentgen) or Gy (Gray) can be selected.

Target/Filter When selected, a drop-down list of available Target/Filter appears, from which the required Target/Filter can be selected. Special calibrations, such as the AMX4 calibration, may also be selected from this drop down list.

Continue Select to save the changes made and go to the MEASUREMENT screen.

Cancel Select to discard the changes made and go back to SYSTEM SETUPS screen.


2-16

Manual Settings Select the Manual option in the SYSTEM SETUPS screen. The MANUAL setting screen displays:

fct031.bmp

MANUAL screen options are described in Table 2-6.

Table 2-6. Radio Mode Manual Setting Screen Options

Option Description

Dose Units When selected, a drop-down list of units appears, from which R (Roentgen) or Gy (Gray) can be selected.

Time Units When selected, a drop-down list of time units appears, from which can be selected msec (millisecond) or pulses.

%kV When selected, a drop-down list of %kV appears, from which can be selected 0%, 75%, 80% or 90%. If 0% is selected, the detector measures radiographic exposure time from the moment x-rays are detected until they are no longer detected. If 75%, 80%, or 90% is selected, the detector measures exposure time between the 75%, 80%, or 90% points on the kV waveform.

Target/Filter When selected, a drop-down list of available Target/Filter appears, from which the required Target/Filter can be selected. Special calibrations, such as the AMX4 calibration, may also be selected from this drop-down list.


2-17

Table 2-6. Radio Mode Manual Setting Screen Options (cont.)

Option Description

Delay A delay is used to postpone the start of data analysis in order to skip over waveform anomalies, such as overshoots or preheat effects that may occur at the beginning of an exposure. When this option is selected, a numeric keypad appears as shown below.

fct032.bmp

Enter the delay from the numeric keypad (0 msec to 999 msec). Select Save to save the entered value and return to the MANUAL settings screen. Select Back to discard the entered value and return to the MANUAL settings screen.

Include Delay

Select this option when waveform anomalies, such as leading edge overshoots are to be excluded from kV measurement but included in exposure time measurement. Deselect this option when waveform anomalies, such as filament preheat pulses are to be excluded from kV and exposure time measurement.

Continue Select to use the changed settings for making measurements and go to the MEASUREMENT screen.

Cancel Select to discard the changes made and go back to the SYSTEM SETUPS screen.


2-18

Table 2-6. Radio Mode Manual Setting Screen Options (cont.)

Option Description

Save Select this option to save the settings with a profile name. An alphanumeric keyboard appears as shown below.

fct033.bmp

Enter the profile name. (A maximum of eight characters) Select Save to save the profile as the entered name and go to the MEASUREMENT screen. Select Back to go to the MANUAL settings screen without saving the profile. The saved setting appears on the SYSTEM SETUPS screen as shown below.

fct034.bmp

Select the desired setup to go to the respective setting screen. Select Back to go to the Measurement screen.

Note: A maximum of five user profiles can be created.


2-19

User Defined Settings Select the required radiographic profile on the SYSTEM SETUPS screen. The respective setting screen displays:

fct035.bmp

Modify the settings as described under Manual Setting. Additional User Defined screen options are described in Table 2-7.

Table 2-7. Radio Mode User Defined Screen Options

Option Description

Delete Select to delete the particular settings profile and return to the SYSTEM SETUPS screen

Save Select to change the profile name if required. The alphanumeric keyboard appears to allow entry of the profile name.




2-20

Default Settings Select the Default option on the SYSTEM SETUPS screen. The Default setting screen displays:

fct036.bmp

The default settings for the Radio mode can be viewed on this screen. Additional Default screen options are described in Table 2-8.

Table 2-8. Radio Mode Default Setting Screen Options

Option Description

Continue Select to go to the MEASUREMENT screen for making measurements of an exposure with default settings.

Cancel Select to go back to the SYSTEM SETUPS screen.


2-21

Mammo Mode 1. From the MEASUREMENT screen, select the Mode (Radio) option. The MODE


fct025.bmp

2. Select the Mammo mode for measurement. The display returns to the MEASUREMENT screen.


fct026.bmp



2-22


fct037.bmp


Table 2-9. Mammo Mode Auto Setting Screen Options

Option Description


Target/Filter When selected, a drop-down list of available Target/Filter appears, from which the required Target/Filter can be selected.




2-23


fct038.bmp


Table 2-10. Mammo Mode Manual Setting Screen Options

Option Description






2-24

Table 2-10. Mammo Mode Manual Setting Screen Options (cont.)

Option Description


fct032.bmp

Enter the delay from the numeric keypad (0 msec to 999 msec).

Select Save to save the entered value and return to the MANUAL settings screen.

Select Back to discard the entered value and return to the MANUAL settings screen.

Include Delay

Select this option when waveform anomalies, such as leading edge overshoots are to be excluded from kV measurement but included in exposure time measurement. Deselect this option when waveform anomalies, such as filament preheat pulses are to be excluded from kV and exposure time measurement.




2-25

Table 2-10. Mammo Mode Manual Setting Screen Options (cont.)

Option Description


fct033.bmp

Enter the profile name. (A maximum of eight characters). Select Save to save the profile as the entered name and go to the MEASUREMENT screen. Select Back to go to the MANUAL settings screen without saving the profile. The saved setting appears on the SYSTEM SETUPS screen as shown below.

fct034.bmp

Select the desired setup to go to the respective setting screen. Select Back to go to the Measurement screen.



2-26


fct039.bmp


Table 2-11. Mammo Mode User Defined Screen Options

Option Description






2-27


fct040.bmp

The default settings for the Mammo mode can be viewed on this screen. Additional Default screen options are described in Table 2-12.

Table 2-12. Mammo Mode Default Setting Screen Options

Option Description




2-28

Fluoro Mode 1. From the MEASUREMENT screen, select the Mode (Radio) option. The MODE


fct025.bmp

2. Select the Fluoro mode for measurement. The display returns to the MEASUREMENT screen.


fct026.bmp



2-29


fct041.bmp


Table 2-13. Fluoro Mode Auto Setting Screen Options

Option Description


Dose Rate Units

When selected, a drop-down list of dose units appears, from which dose (R or Gy) per second, minute, hour, or pulse can be selected.





2-30


fct042.bmp


Table 2-14. Fluoro Mode Manual Setting Screen Options

Option Description


Dose Rate Units

When selected, a drop-down list of dose rate units appears, from which Dose (R or Gy) per second, minute, hour, or pulse (Dose per pulse is for pulsed fluoro type of measurements) may be selected.

Fluoro Type When selected, a drop-down list of different types of fluoro measurements appears, from which CONT (Continuous) or Pulsed type may be selected.





2-31

Table 2-14. Fluoro Mode Manual Setting Screen Options (cont.)

Option Description


fct033.bmp


fct034.bmp

Select the desired setup to go to the respective setting screen. Select Back to go to the Measurement screen. Note: A maximum of five user profiles can be created.


2-32


fct043.bmp


Table 2-15. Fluoro Mode User Defined Screen Options

Option Description






2-33


fct044.bmp

The default settings for the Fluoro mode can be viewed on this screen. Additional Default screen options are described in Table 2-16.

Table 2-16. Fluoro Mode Default Setting Screen Options

Option Description



Dental Mode 1. From the MEASUREMENT screen, select the Mode (Radio) option. The MODE


fct025.bmp


2-34

2. Select the Dental mode for measurement. The display returns to the MEASUREMENT screen.

3. Select the Settings option. The SYSTEM SETUPS screen appears:

fct026.bmp



fct045.bmp



2-35

Table 2-17. Dental Mode Auto Setting Screen Options

Option Description






fct046.bmp


Table 2-18. Dental Mode Manual Setting Screen Options

Option Description






2-36

Table 2-18. Dental Mode Manual Setting Screen Options (cont.)

Option Description


fct032.bmp

Enter the delay from the numeric keypad (0 msec to 999 msec). Select Save to save the entered value and return to the MANUAL settings screen. Select Back to discard the entered value and return to the MANUAL settings screen.

Include Delay Select this option when waveform anomalies, such as leading edge overshoots are to be excluded from kV measurement but included in exposure time measurement. Deselect this option when waveform anomalies, such as filament preheat pulses are to be excluded from kV and exposure time measurement.




2-37

Table 2-18. Dental Mode Manual Setting Screen Options (cont.)


fct033.bmp


fct034.bmp

Select the desired setup to go to the respective setting screen. Select Back to go to the Measurement screen. Note: A maximum of five user profiles can be created.


2-38


fct047.bmp


Table 2-19. Dental Mode User Defined Screen Options

Option Description






2-39


fct048.bmp

The default settings for the Dental mode can be viewed on this screen. Additional Default screen options are described in Table 2-20.

Table 2-20. Dental Mode Default Setting Screen Options

Option Description




2-40

Setting Date and Time When the Date/Time option is selected on the MEASUREMENT screen, the SET DATE/TIME screen displays:

fct049.bmp

SET DATE/TIME screen options are described in Table 2-21.

Table 2-21. Set Date/Time Screen Options

Option Description

Date When Month, Day, or Year fields are selected, a drop-down list appears. Scroll and select the required Date.

Time When Hour, Min, or AM/PM fields are selected, a drop-down list appears. Scroll and select the required Time.

Save Select to save the changes and go to the Measurement screen.

Cancel Select to discard the changes made and go back to the Measurement screen.

3-1

Chapter 3 Using the PC Based Excel Add-In

Software

Title Page

Introduction........................................................................................................ 3-3 Prerequisites....................................................................................................... 3-3 Setting up the System ........................................................................................ 3-4

Communication between Computer and Detector......................................... 3-4 Wireless Zigbee Connection ..................................................................... 3-4 Wired USB Connection............................................................................. 3-4

Positioning the Detector ................................................................................ 3-5 Excel Add-In Software ...................................................................................... 3-6

Installing the TNT 12000 Excel Add-In Software ........................................ 3-6 Uninstalling the TNT 12000 Excel Add-In software .................................... 3-7 Installing the TNT 12000 Vendor Class Driver ............................................ 3-9 Uninstalling the TNT 12000 Vendor Class Driver........................................ 3-11

Initializing the TNT 12000 Excel Add-In software ........................................... 3-13 Using the TNT 12000 Excel Add-In Functions ................................................. 3-14 Excel Add-In Templates .................................................................................... 3-16 Recording Measurements................................................................................... 3-17 Measurement Settings........................................................................................ 3-19


Mammo Mode ............................................................................................... 3-23 Auto Settings............................................................................................. 3-23 Manual Settings......................................................................................... 3-24 User Defined Settings ............................................................................... 3-25 Default settings.......................................................................................... 3-26


Dental Mode .................................................................................................. 3-31


3-2

Auto Settings ................................................................................................. 3-31 Manual Settings......................................................................................... 3-32 User Defined Settings ............................................................................... 3-33 Default settings.......................................................................................... 3-34

Evaluating Battery Status .............................................................................. 3-35 Click OK to close the Battery Status window.Power Settings .......................... 3-36 Downloading the kV Waveform........................................................................ 3-37 Printing Sheets and Reports ............................................................................... 3-38

Printing a Selected Sheet ............................................................................... 3-38 Printing Several Selected Sheets ................................................................... 3-38 Printing All Sheets......................................................................................... 3-38 Printing a Range of Sheets ............................................................................ 3-38

Modifying a Template ....................................................................................... 3-39

Using the PC Based Excel Add-In Software Introduction 3

3-3

Introduction The Tester offers Excel Add-In software that adds additional commands and features to Microsoft Excel. The Excel Add-In emulates the Tester display with additional functionality like waveform download into an Excel worksheet. The TNT 12000 Excel Add-In may be used to perform quality assurance tests such as Exposure Reproducibility, kVp, Accuracy, Linearity, and HVL measurements, and the templates can be modified to meet specific testing requirements. Four measurement modes are available: • Fluoroscopic • Radiographic • Mammographic • Dental The TNT 12000 Excel Add-In can be used with the supplied templates or any other Excel workbook. The measurement data is automatically inserted into the open worksheet at the active worksheet cell after a measurement is made. Built-in templates for typical tests include: • Radiography – template contains worksheets formatted to perform typical

radiographic tests such as exposure reproducibility, kVp, Accuracy, Linearity, and HVL measurements. All the test results are summarized on a report that can be printed on a single page.

• Fluoroscopic – template contains worksheets formatted to perform typical fluoroscopic tests such as kV Accuracy, Beam Quality, and Maximum Exposure Rate. The test results are summarized on a report that can be printed on a single page.

• Mammography – template contains worksheets formatted to perform typical mammographic tests and is based on the ACR (American College of Radiology) Summary Report, and Data Recording & Analysis Forms. Additionally the template worksheets have measurement data areas and calculations to assist in creating a quality report.

Prerequisites The minimum system requirements to use the TNT 12000 Excel Add-In software are • Microsoft Windows 2000/Windows XP/Windows Vista Operating system • Microsoft Excel 97/Excel 2000 or higher • One USB port • CD-ROM disk drive In addition, the Excel Add-In software and TNT 12000 Vendor Class Driver must be installed.


3-4

Setting up the System The computer and detector must communicate with each other, and the detector must be positioned properly with respect to the x-ray beam being evaluated. These setup procedures are described below.

Communication between Computer and Detector The computer and detector must communicate with each other by a wireless or USB connection.

Wireless Zigbee Connection Power on the computer and the detector. Connect the Zigbee dongle to one of the USB ports of the computer as shown in the Figure 3-1. Keep the detector within the range of the computer.

fct03.eps

Figure 3-1. Wireless Connection between Computer and Detector

Wired USB Connection To make a wired connection: 1. Power on the computer and the detector. 2. Connect the ends of Type-A to Mini-B USB cable to an USB port of the Computer

and the detector as shown in Figure 3-2.

Using the PC Based Excel Add-In Software Setting up the System 3

3-5

fct07.eps

Figure 3-2. USB Connection between Computer and Detector

Note See the marking on the ends of the cable for identifying the Type-A and Mini-B ends.

3. Install the USB Vendor Class Driver (if it is not already installed), referring to Installing the TNT 12000 Vendor Class Driver, as necessary.

Positioning the Detector Position the detector as described under Operation: System Setup: Positioning the Detector.


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Excel Add-In Software The following describes the procedures for installing and uninstalling the Excel Add-In software and driver.

Installing the TNT 12000 Excel Add-In Software 1. Start the computer. 2. Insert the TNT 12000 Package CD into the CD ROM drive. The installation starts

automatically.

Note If the installation does not start, browse through the CD and double-click Setup.exe to start the installation. The TNT 12000 InstallShield Wizard window displays:

fct055.bmp

Using the PC Based Excel Add-In Software Excel Add-In Software 3

3-7

3. Click Next. The Ready to Install the Program window displays:

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4. Click Install to begin the installation. Wait while the InstallShield wizard installs the TNT 12000 Excel Add-In. The InstallShield Wizard Completed screen displays:

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5. Click Finish to exit the wizard. The TNT 12000 Excel Add-In software is installed and ready to use. An entry in the Start menu and a shortcut icon by the name TNT 12000 is created on the Desktop.

Uninstalling the TNT 12000 Excel Add-In software 1. Start the computer. 2. Click Start on the task bar, and select Control Panel. 3. Double-click Add or Remove Programs icon. The Add or Remove

Programs window displays:


3-8

fct062.bmp

4. Select TNT 12000 and click Remove. A confirmation window displays:

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5. Click Yes to uninstall the Excel Add-In software.


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Installing the TNT 12000 Vendor Class Driver 1. Start the computer. 2. Connect the detector to the computer through the USB cable (Type-A to Mini-B) and

turn on the detector. The Found New Hardware Wizard window displays:

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3. Select Install from a list or specific location (Advanced) option and click Next. A window to from which to select the search and installation option displays:

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4. Select Search for the best driver in these locations and Search removable media (floppy, CD-ROM…) option and click Next. While installing a warning message window displays:


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5. Click Continue Anyway. Wait while the wizard installs the USB driver. The Completing the Found New Hardware Wizard window displays:

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6. Click Finish to complete the installation.


3-11

Uninstalling the TNT 12000 Vendor Class Driver 1. Start the computer. 2. Connect a detector to the computer through Mini-B to Type-A USB cable and turn on

the detector. 3. Right click the My Computer icon and select Manage. 4. Select Device Manager on the left side of the window:

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5. Click the (+) sign adjacent to Universal Serial Bus controllers. A list of connected devices displays:


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6. Right-click TNT 12000 device and select Uninstall. A confirmation window displays:

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7. Click OK to uninstall the Vendor Class Driver.

Using the PC Based Excel Add-In Software Initializing the TNT 12000 Excel Add-In software 3

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Initializing the TNT 12000 Excel Add-In software To initialize the TNT 12000 Excel Add-In software: 1. Start the computer. 2. Click Start and then click Programs. 3. Select TNT 12000 to open the TNT 12000 Excel Add-In. Alternatively, double-click

the TNT 12000 shortcut icon on the Desktop. After the TNT 12000 Excel Add-In is started, TNT 12000 appears at the top of the screen. The TNT 12000 Menu and Toolbar are displayed, as shown in Figure 3-3.

Note When used with a blank worksheet, the measurement data is automatically inserted into the active worksheet cell after a measurement is made.

fct067.bmp

Figure 3-3. TNT 12000 Excel Add-In Menu and Toolbar

Note Macros must be enabled in Excel for the TNT 12000 Excel Add-In to work. Excel offers macro virus protection as an option. Refer to the Excel documentation for more information on enabling macros.

Note In Microsoft Excel 2007, click the Add-Ins tab at the top of the screen to view the TNT 12000 menu and toolbar:


3-14

fct068.bmp

Using the TNT 12000 Excel Add-In Functions Begin from the TNT 12000 Add-In Menu and Toolbar:

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1. Click TNT 12000 on the Menu Bar. The drop-down menu appears:

Using the PC Based Excel Add-In Software Using the TNT 12000 Excel Add-In Functions 3

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2. Either select from the menu options as described in Table 3-1 or click an option on the TNT 12000 Toolbar.

Table 3-1. TNT 12000 Add-In Options

Option Description

Battery Shows the battery status of the connected detectors.

Connection Scans for the available detectors in the vicinity.

Template Selects the templates Fluoro, Radio, or Mammo.

Mode Selects the measurement mode (Fluoro, Radio, Mammo, or Dental).

Settings Selects the settings for the mode (Auto, Manual, User defined, or Default).

Power Settings Changes the system low power mode time and system shutdown time.

(Download Waveform)

(This option is enabled after an exposure is made and is disabled when TNT 12000 detector is making exposure measurement.) Downloads the kV waveform.

Stop (During Fluoroscopic measurement only) Retains the particular measurement data of the exposure.

Help Shows the TNT 12000 Excel Add-In online help file.

About TNT 12000 EXCEL ADD IN

(Available only in TNT 12000 Menu) Shows the TNT 12000 Excel Add-In Version, and Serial Number, Firmware Version, Hardware Version, and Calibration Date of the connected detectors.


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Excel Add-In Templates The TNT 12000 Excel Add-In template is a workbook with standard text, such as column headings, formulae, macros, and other formatting as in new workbooks. New workbooks are created using a template and contain the same text and formatting of the template.

Note When using a template, do not open the template file itself, but create a new workbook using the template file.

The TNT 12000 template contains worksheets formatted to assist in performing typical tests. Test results are summarized on a report that can be printed on a single page. The template can be modified to meet specific testing requirements. When used with the TNT 12000 Add-In, the template helps to automate testing. Template contents are as follows: • Radiographic – Survey data, Repro, Accuracy, Linearity, HVL, Report, Manual

Waveforms, Auto Waveforms, and Help worksheets. • Fluoroscopic – Survey data, kVp Accuracy, HVL, Exposure rate, Report, and Help.

Note For additional information about completing Radiographic and Fluoroscopic templates, see Additional Data in Excel Templates in the Appendix.

• Mammographic – Evaluation, Collimation, Resolution, AEC, Uniformity, Artifact Eval, Image Quality, kVp, Beam Quality, Dose, Viewbox, Preliminary results, Summary Page1, Summary Page 2, Assistant Log, and Auto Waveform.

The Survey Data worksheet is used to enter information that identifies the survey to be performed. The remaining worksheets contain links to the Survey Data worksheet so that the information is available on each worksheet. Except for the Auto and Manual waveform worksheets, each worksheet contains a Help button that takes the operator to the appropriate section of the Help worksheet. A sample TNT 12000 Radiographic template is as shown in Figure 3-4.

Using the PC Based Excel Add-In Software Recording Measurements 3

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fct077.bmp

Figure 3-4. Sample TNT 12000 Add-In Template

Note: The areas of the worksheet shaded in light yellow are fields to be filled in by the user and populated by measurement readings from the device.

Recording Measurements To make an exposure and record the results, use the following procedures: 1. Make the connections as described under Making Connections between Computer

and Detector. 2. Position the detector as described under Operation: Setting up the System:

Positioning the Detector. 3. Power on the computer and the detector. 4. Initialize the TNT 12000 Excel Add-In software.

Note When used with a blank worksheet, the measurement data is automatically inserted into the active worksheet cell after a measurement is made.

Select a Template 1. Click Template and select the desired Radio, Mammo, or Fluoro template. 2. Enter the necessary detail in the templates.


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Select the Mode Click Mode to select the Radio, Mammo, Fluoro, or Dental mode of measurement.

Select Settings Click Settings to select the settings for the measurement: Auto, Manual, User defined, or Default settings. See Measurement Settings, below.

Establish a Connection 1. Click Connection. The software scans for detectors present, and the Scanning…

window displays:

fct078.bmp

2. If desired, click Stop to stop scanning for detectors and close the window. After scanning for the detectors, the Establish Connection window displays:

fct079.bmp

The Zigbee ( ) wireless or USB (') communication icon appears, indicating the mode of communication through which the detectors are connected. Last calibrated date, calibration due date, Software version, and Hardware version of the selected detector is displayed in this window. Establish Connection window options are described in Table 3-2.

Using the PC Based Excel Add-In Software Measurement Settings 3

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Table 3-2. Establish Connection Window Options

Option Description

TNT 12000WD(2)

Select the detector from the drop-down list. The number in parenthesis indicates the number of detectors available for connection.

Connect Click to connect to the selected detector. If no detectors are found, the No Detector Found window displays:

fct081.bmp

Always Connect

Click to enable the detector to be automatically connected when the application is run next time.

Cancel Click if connection to any of the detectors is not desired; closes the window.

Select the Worksheet Select the worksheet of interest and place the cursor on the cell where data is to be displayed. The measurement data is automatically inserted into the active worksheet cell after a measurement is made.

Make an Exposure and Record Results Make an exposure. The computer and detector beep to indicate a new exposure. The detector analyzes the data, and the measured data is inserted in the worksheet.

Measurement Settings All four modes have Auto, Manual, and Default settings. In addition, five user-defined settings can be created for each mode. The following sections describe options and settings for all of the measurement modes.

Radio Mode Begin at the TNT 12000 Excel Add-In Menu and Toolbar. 1. Select the required template from the Template drop-down list. 2. Select Radio from the Mode drop-down list. 3. Select the required settings from the Settings drop-down list.


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Auto Settings Auto waveform analysis is done in this mode of operation. Select the Auto option from the Settings list. The Auto Settings window displays:

fct083.bmp

Auto Settings: Radio window options are described in Table 3-3.

Table 3-3. Auto Settings: Radio Window Options

Option Description

Dose Units Select R (Roentgen) or Gy (Gray) from the drop-down list

Target/Filter Select the required Target/Filter from the drop-down list. Special calibrations, such as the AMX4 calibration, may also be selected from this drop-down list.

Continue Click to save the changes and close the window.

Cancel Click to discard the changes made and close the window.

Manual Settings To make settings manually, select the Manual option from the Settings list. The Manual Settings window displays:

fct084.bmp

Manual Settings: Radio window options are described in Table 3-3.


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Table 3-4. Manual Settings: Radio Window Options

Option Description


Time Units Select msec (millisecond) or Pulses from the drop-down list.

%kV Select %kV 0%, 75%, 80% or 90% from the drop-down list. If 0% is selected, the detector measures radiographic exposure time from the moment x-rays are detected by the detector until they are no longer detected. If 75%, 80%, or 90% is selected, the detector measures exposure time between the 75%, 80%, or 90% points on the kV waveform.

Delay A measurement delay is used to postpone the start of data analysis in order to skip over waveform anomalies (such as overshoots or preheat effects) that may occur at the beginning of an exposure. A delay of 0 msec to 999 msec can be entered.

Target/Filter Select the required Target/Filter from the drop-down list.

Include Delay Select this checkbox when the waveform anomalies such as leading edge overshoots are to be excluded for kV measurement but included in exposure time measurement. Deselect this checkbox when waveform anomalies such as filament preheat pulses are to be excluded for kV and Exposure time measurement.

Save Click to save the changes with a profile name. The User Settings Name window displays:

fct085.bmp

The profile name can be a maximum of 15 characters.

Click OK to save the profile with the entered profile name and close the window. Click Cancel to discard the entered profile name and close the window. The saved setting option is added to the Settings drop-down list.


Continue Click to use the changed settings for making measurements and close the Manual Settings window.

Cancel Click to discard the changes made and close the Manual Settings window.


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User Defined Settings To set user defined parameters, select the required Radiographic profile from the Settings drop-down list. The UserX Settings (X = 1 through 5) window displays:

fct086.bmp

Modify the settings as described under Manual Settings. UserX Settings: Radio window options are described in Table 3-5.

Table 3-5. User Defined Settings: Radio Window Options

Option Description

Delete Click to delete the particular settings profile.

Save Click to change the profile name if required. The User Settings Name window appears for entering the new profile name.

Continue Click to use the changed settings for making measurements and close the User Settings window.

Cancel Click to discard the changes and close the User Settings window.

Default Settings To view defaults, select the Default option from the Settings list. The Default Settings window displays:

fct087.bmp

The default settings for the Radio mode can be viewed in this window. Default Settings: Radio window options are described in Table 3-6.


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Table 3-6. Default Settings: Radio Window Options

Option Description

Continue Click to make the measurements of an exposure with default settings.

Cancel Click to close the Default Settings window

Mammo Mode Begin at the TNT 12000 Excel Add-In Menu and Toolbar. 1. Select the required template from the Template drop-down list. 2. Select Mammo from the Mode drop-down list. 3. Select the required settings from the Settings drop-down list.


fct088.bmp

Auto Settings: Mammo window options are described in Table 3-7.

Table 3-7. Auto Settings: Mammo Window Options

Option Description






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Manual Settings: Mammo window options are described in Table 3-8.

Table 3-8. Manual Settings: Mammo Window Options

Option Description










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Table 3-8. Manual Settings: Mammo Window Options (cont.)

Option Description


fct085.bmp


Click OK to save the profile with the entered profile name and close the window.

Click Cancel to discard the entered profile name and close the window. The saved setting option is added to the Settings drop-down list.


User Defined Settings To make user defined settings, select the required Mammographic profile from the Settings drop-down list. The UserX Settings (X = 1 through 5) window displays:

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Modify the settings as described under Manual Settings. UserX Settings: Mammo window options are described in Table 3-9.


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Table 3-9. User Defined Settings: Mammo Window Options

Option Description




Cancel Click Cancel to discard the changes and close the User Settings window.

Default settings To view defaults, select the Default option from the Settings list. The Default Settings window displays:

fct091.bmp

The default settings for the Mammo mode can be viewed in this window. Default Settings: Mammo window options are described in Table 3-10.

Table 3-10. Default Settings: Mammo Window Options

Option Description




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Fluoro Mode Begin at the TNT 12000 Excel Add-In Menu and Toolbar. 1. Select the required template from the Template drop-down list. 2. Select Fluoro from the Mode drop-down list. 3. Select the required settings from the Settings drop-down list.


fct092.bmp

Auto Settings: Fluoro window options are described in Table 3-11.

Table 3-11. Auto Settings: Fluoro Window Options

Option Description


Dose Rate Units Select Dose (R or Gy) per second, minute, hour, or pulse from the drop-down list





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Manual Settings: Fluoro window options are described in Table 3-12.


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Table 3-12. Manual Settings: Fluoro Window Options

Option Description


Dose Rate Units Select Dose (R or Gy) per second, minute, hour, or pulse from the drop-down list.

Fluoro Type Select Fluoroscopic type CONT (Continuous) or PULSED from the drop-down list.



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User Defined Settings To make user defined settings, select the required Fluoroscopic profile from the Settings drop-down list. The UserX Settings (X = 1 through 5) window displays:

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Modify the settings as described under Manual Settings. UserX Settings: Fluoro window options are described in Table 3-13.

Table 3-13. User Defined Settings: Fluoro Window Options

Option Description





Default Settings To view defaults, select the Default option from the Settings list. The Default Settings window displays:

fct095.bmp

The default settings for the Fluoro mode can be viewed in this window. Default Settings: Fluoro window options are described in Table 3-14.


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Table 3-14. Default Settings: Fluoro Window Options

Option Description



Dental Mode Begin at the TNT 12000 Excel Add-In Menu and Toolbar. 1. Select the required template from the Template drop-down list. 2. Select Dental from the Mode drop-down list. 3. Select the required settings from the Settings drop-down list.


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Auto Settings: Dental window options are described in Table 3-15.

Table 3-15. Auto Settings: Dental Window Options

Option Description






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Manual Settings: Dental window options are described in Table 3-16.

Table 3-16. Manual Settings: Dental Window Options

Option Description










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Table 3-16. Manual Settings: Dental Window Options (cont.)

Option Description


fct085.bmp




User Defined Settings To make user defined settings, select the required Dental profile from the Settings drop-down list. The UserX Settings (X = 1 through 5) window displays:

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Modify the settings as described under Manual Settings. UserX Settings: Dental window options are described in Table 3-17.


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Table 3-17. User Defined Settings: Dental Window Options

Option Description





Default settings To view defaults, select the Default option is from the Settings list. The Default Settings window displays:

fct099.bmp

The default settings for the Dental mode can be viewed in this window. Default Settings: Dental window options are described in Table 3-18.

Table 3-18. Default Settings: Dental Window Options

Option Description




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Evaluating Battery Status The Battery option is enabled only when a detector is connected. To evaluate battery status: 1. Click the Battery option. The Battery Status window displays:

fct082.bmp

2. Select the detector from the Select Detector drop-down list. 3. View the battery status.


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Click OK to close the Battery Status window.Power Settings To set the power options, click the Power Settings option. The Power Settings window displays:

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Power Settings window options are described in Table 3-18.

Table 3-19. Power Settings Window Options

Option Description

System low power mode time

Enter the system low power mode time (2 min to 9 min). All of the detector system circuitry is put in the low power mode, if there are no measurements for the set system low power mode time, and the detector Sleep window displays:

fct101.bmp

Click Wake Up to make the detector come out of the low power sleep mode.

Click Cancel to continue the detector to be in the Sleep Mode and a Wake Up button is added to the Excel Add-In Toolbar.

System shut down time

Enter the system shutdown time (10 min to 99 min). The detector shuts down, if there are no measurements for the set system shut down time, and detector Shut Down window displays:

fct102.bmp

Click OK and press the On/Off key of the detector to restart the system


Using the PC Based Excel Add-In Software Downloading the kV Waveform 3

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Downloading the kV Waveform The complete waveform or a portion of the kV waveform can be retrieved from the Tester after an exposure. The data can be imported to the Manual Waveforms sheet or to the Active cell on the Active sheet. A separate sheet is created and the waveform is plotted using that data. To download the kV waveform: 1. Click the Download Waveform button ( ). A Download Waveform window

displays:

fct103.bmp

This window has options to select the start time and end time of data points to be collected from the detector. Use the default start time and end time to retrieve the complete waveform.

2. To retrieve a portion of the kV waveform, change the start time and/or end time of the waveform to be retrieved. Download Waveform window options are described in Table 3-18.

Table 3-20. Download Waveform Window Options

Option Description

Start time Select the start time of the kV waveform exposure to be downloaded.

End time Select the end time of the waveform exposure to be downloaded.

Import waveform data to

Select ‘Manual Waveforms’ Sheet option to download waveform to ‘Manual Waveforms’ sheet.

Select Active Cell option to download the waveform to an active cell of an active sheet

OK Click to save the changes and close the window, and the kV waveform download starts.

Cancel Click to discard the changes, cancel the kV waveform download, and close the window.

Note If the Auto waveform check box in the Radiographic worksheets is selected, the kV waveform data is automatically downloaded to the Auto waveforms sheet and a kV waveform chart is created.


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Printing Sheets and Reports To print sheets and reports, follow the procedures below.

Printing a Selected Sheet 1. Click the tab for the sheet to be printed. 2. Click the printer icon in the Excel toolbar. Alternatively, click Print… from the File

menu.

Note The Waveforms worksheet may contain many pages.

Printing Several Selected Sheets 1. Hold down the Ctrl key and click on the worksheet tabs of the sheets to be printed. 2. Click the printer icon in the Excel toolbar. Alternatively, click Print… from the File

menu.

Note Be careful when selecting worksheets; do not unintentionally select the Waveforms worksheet, as it may contain many pages.

Printing All Sheets 1. Select Print… from the File menu. 2. Select Entire workbook from the Print what menu in the Print dialog box.

Note Check the Waveforms worksheet prior to printing a complete workbook. The Waveforms worksheet may contain many pages.

Printing a Range of Sheets 1. Select Print… from the File menu. 2. Select Page(s) from the Print range menu in the print dialog box. 3. Define the print range using the From: and To: boxes.

Note Be careful when selecting a range of worksheets, not to unintentionally select the Waveforms worksheet, as it may contain many pages. Refer to Excel Help for more information about printing.

Using the PC Based Excel Add-In Software Modifying a Template 3

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Modifying a Template The template has been set up to perform typical measurements. In some cases, the template may be modified to suit specific testing needs. To modify the template: 1. Unprotect a worksheet: under the Excel Tools menu, select Protection; then click

Unprotect sheet. 2. Open the template as normal. 3. Make required modifications. 4. Select Save As under the Excel File menu. 5. Change the Save as type to Template (*.xlt).

Note Saving the new template in the folder suggested by Excel makes it available in the File New dialog box.


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4-1

Chapter 4 Maintenance, Service, and Calibration

Title Page

Maintenance....................................................................................................... 4-3 Avoiding Damage.......................................................................................... 4-3 Cleaning......................................................................................................... 4-3

Firmware Upgrade ............................................................................................. 4-3 Detector ......................................................................................................... 4-3 Display........................................................................................................... 4-5

Service and Calibration...................................................................................... 4-8

TNT12000 Users Manual

4-2

Maintenance, Service, and Calibration Maintenance 4

4-3

Maintenance The Tester requires little maintenance or special care; however, it is a calibrated measuring instrument and should be treated as such. The storage environment should be free from vibration.

Avoiding Damage Do not drop the instrument or subject it to any mechanical abuse that could cause a shift in the calibrated settings.

W Caution To avoid damage to the Tester or adverse affects on its performance, do not expose the system to temperature extremes. Ambient operating temperatures should remain between 0 °C and 35 °C, with a maximum humidity of 80 %.

Cleaning Clean the exterior of the Tester occasionally with a cloth dampened with a mild detergent solution.

W Caution To avoid damage to the Tester or adverse affects on its performance, do not spray liquid directly on or immerse the unit. The unit is not waterproof.

Firmware Upgrade Firmware is downloaded from the Fluke website for installation from the computer into the detector and display. Before performing the upgrades, ensure that the TNT 12000 Vendor Class Driver is installed on the computer. See Installing the TNT 12000 Vendor Class Driver for driver installation instructions.

Detector 1. Download the required upgrade file from www.flukebiomedical.com. 2. Double click the downloaded executable file. A Device Validation window

displays:

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4-4

3. Connect the detector to the Computer through the Mini-B to Type-A USB cable. 4. Power on the detector. The Device Validation window display changes:

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5. When the Upgrade button becomes active, click Upgrade. The Device Upgrade window with progress bar displays:

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Wait while the firmware is upgraded. LEDs on the detector blink during the firmware upgrade. Do not click the Close button (upper-right corner); doing so aborts the upgrades. The following window displays, showing successful upgrade of the firmware:

Maintenance, Service, and Calibration Firmware Upgrade 4

4-5

fct107.bmp

6. Click Exit to close the window. The detector restarts.

Display 1. Download the required upgrade file from www.flukebiomedical.com. 2. Double click the downloaded executable file. A Device Validation window

displays:

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3. Connect the Tester display to the computer through the Mini-B to Type-A USB cable.

4. Power on the Tester display. The following screen appears on the Tester display:


4-6

fct109.bmp

5. When the Upgrade button becomes active, click Upgrade. The Device Upgrade window with progress bar displays on the computer screen:

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Concurrently, the following screen appears on the Tester display:

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Maintenance, Service, and Calibration Firmware Upgrade 4

4-7

Wait while the firmware is upgraded. LEDs on the detector blink during the firmware upgrade. Do not click the Close button; to do so aborts the upgrades. The following window displays on the computer screen, showing successful upgrade of the firmware:

fct112.bmp

6. Click Exit to close the window. The following screen appears on the Tester display:

fct113.bmp


4-8

Service and Calibration If the new Tester fails to operate successfully or if it needs a recommended yearly calibration, contact the Fluke Biomedical Service Center immediately, as indicated under Warranty and Product Support.

W Caution To avoid damage to the Tester or adverse affects on its performance, adhere to the following:

• Allow only qualified technical personnel to service the Tester.

• Do not attempt to open the unit. No part of the Tester is serviceable by the user.

• Do not attempt to replace the battery.

Packing If repairs or calibration are required, return the Tester to the factory or the nearest service center. 1. Before returning the Tester for factory service, contact the Fluke Biomedical Service

Center for a required Return Authorization Number. 2. Provide the following information: 3. The Tester serial number 4. The specific steps that reproduce your problem 5. A daytime phone number 6. Your name / company 7. A fax number (if available) 8. Pack the instrument carefully, using the original shipping container and packing

materials supplied by Fluke Biomedical. If the original packing materials are not available, refer to Return Procedures for a list of preferred materials or contact Fluke Biomedical for replacement packing.

Note Failure to pack the instrument properly could void the warranty.

Shipping 1. Place the Return Authorization Number in a prominent place on the outside of the

packing box, and refer to the number in any correspondence with the Fluke Biomedical Service Center.

2. Enclose your return address and Return Authorization Number. 3. Insure the unit for full retail value and ship to the nearest Fluke Biomedical Service

Center.

Appendices

Appendix Title Page

A KV, Exposure, and Exposure Time Measurements ............................................ A-1 B Warning and Error Messages .............................................................................. B-1 C Troubleshooting .................................................................................................. C-1 D Excel Template Help........................................................................................... D-1

A-1

Appendix A KV, Exposure, and Exposure Time

Measurements

Introduction The Tester measures kV, exposure, exposure time, and HVL for all radiographic x-ray imaging modalities including Radiographic, Mammographic, Fluoroscopic, and Dental, and can measure kV for stationary mode CT. All kV measurements are automatically corrected for beam filtration; all exposure measurements are automatically corrected for both kV and beam filtration. Automatic waveform analysis determines the appropriate analysis methods for the measurement based on the waveform type and the type of x-ray machine. The following sections give details about how kV, exposure, and exposure time are measured.

Radio Waveform Analysis In the Radiographic mode, exposure, exposure time, and kV measurements are done as follows:

Single Phase Exposure time in milliseconds is calculated between the first and last zero crossings of the kV waveform. Exposure time in pulses is measured between the first and last zero crossings of the kV waveform. Average kVp is measured on the pulses in the central 80 % of the kV waveform. Maximum kV and PPV are measured over the complete waveform. Exposure is measured from the beginning of the exposure to the end of the exposure.

Three Phase Exposure time in milliseconds is calculated between the 75 % points on the rising and falling edges of the kV waveform. Average kVp is measured on the peaks in the central 80 % of the kV waveform. Maximum kV and PPV are measured over the complete waveform. Exposure is measured from the beginning of the exposure to the end of the exposure.


A-2

HF (High Frequency) Exposure time in milliseconds is calculated between the 90 % points on the rising and falling edges of the kV waveform. Average kV is measured on the peaks in the central 80 % of the kV waveform. Maximum kV and PPV are measured over the complete waveform.

Mammo Waveform Analysis In the Mammographic mode, kV, dose, and exposure time measurements are affected by automatic waveform analysis as follows:

With Scout or Sample Exposure or HTC grid (Lorad) Average kVp is measured on the central 80 % of the last kV waveform after the scout exposure or the last HTC grid pause. Maximum kV and PPV are measured over the complete waveform after the scout exposure or the last HTC grid pause. Exposure time in milliseconds is calculated between the 90 % points on the rising and falling edges of the kV waveform after the scout exposure, but including the HTC grid reset time. Exposure is measured from the beginning of the exposure to the end of exposure, including the scout exposure.

Without Scout Exposure Average kVp is measured on the central 80 % of the kV waveform. Maximum kV and PPV are measured over the complete waveform. Exposure time in milliseconds is calculated between the 90 % points on the rising and falling edges of the kV waveform. Exposure is measured from the beginning of the exposure to the end of exposure.

Fluoro Waveform Analysis In the Fluoroscopic mode, waveform analysis of exposure time and dose measurements is done as follows:

Continuous Fluoro Elapsed time and accumulated dose are measured from the moment x-rays are detected until they cease. KV is measured from one second samples while the x-ray beam is on. The user can select the unit for Dose Rate as Dose (R or Gy) per second, minute, or hour.

Pulsed Fluoro Elapsed time and accumulated dose are measured from the moment x-rays are detected until they cease. The average pulse width and pulse rate are calculated from each one-second sample. KV is measured from one second samples while the x-ray beam is on. The user can select the unit for Dose Rate as Dose (R or Gy) per second, minute, hour, or pulse.

Appendices KV, Exposure, and Exposure Time Measurements A

A-3

Dental Waveform Analysis In the Dental mode, waveform analysis of exposure time and kV measurements is done as follows:

Dental with Filament Preheat (Single Phase) Exposure time in milliseconds is calculated between the first and the last zero crossings of the kV waveform plus 4 ms (compensates for the waveform time that does not produce x-rays) after the preheat. Exposure time in pulses is measured between the first and the last zero crossings of the kV waveform after the preheat. Average kVp is measured on the pulses in the central 80 % of the kV waveform after the preheat. Maximum kV and PPV are measured over the complete waveform after the preheat. Exposure is measured from the beginning of the exposure to the end of the exposure.

Dental without Filament Preheat (Single Phase) Exposure time in milliseconds is calculated between the first and last zero crossings of the kV waveform plus 4 ms (compensates for the waveform time that does not produce x-rays). Exposure time in pulses is measured between the first and last zero crossings of the kV waveform. Average kVp is measured on the pulses in the last 75 % of the kV waveform, less the last peak. Maximum kV and PPV are measured over the complete waveform. Exposure is measured from the beginning of the exposure to the end of the exposure.

Three Phase Exposure time in milliseconds is calculated between the 75 % points on the rising and falling edges of the kV waveform. Average kVp is measured on the peaks in the central 80 % of the kV waveform. Maximum kV and PPV are measured over the complete waveform. Exposure is measured from the beginning of the exposure to the end of the exposure.

HF (High Frequency) Exposure time in milliseconds is calculated between the 90 % points on the rising and the falling edges of the kV waveform. Average kVp is measured on peaks in the central 80 % of the kV waveform. Maximum kV and PPV are measured over the complete waveform. Exposure is measured from the beginning of the exposure to the end of the exposure.


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B-1

Appendix B Warning and Error Messages

Warning and error messages are described in Table B-1.

Table B-1. Warning and Error Messages

Warning / Error Message Description

XXXXXX detector Calibration Overdue

Note: XXXXXX denotes the serial number of the detector

The detector needs to be calibrated. Contact Fluke Biomedical Service Center.

Connection lost with the detector XXXXXX The detector has lost connection with the display or computer. Ensure that the detector is properly connected. Reconnect the components and select the Connection option to reestablish the connection.

Low Battery XXXXXX This message appears along with a beep sound, and the detector battery status LED glows yellow. This happens when the detector battery has approximately less than 20 % of charge remaining. Connect the detector to the power source.

Low Battery Readout This message appears along with a beep sound, and the display battery status LED glows yellow when the display battery has approximately less than 20 % of charge remaining. Connect the display to its ac adapter or a USB port to continue operation.

Low Battery XXXXXX shutting down in 2 min This message appears along with a beep sound, and the detector battery status LED glows red. This happens when the detector battery has less than 10 % of charge remaining. Connect the detector to its ac adapter or a USB port to continue operation. If this message is ignored, the detector powers off in two minutes.


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Table B-1. Warning and Error Messages (cont.)

Warning / Error Message Description

Low Battery Readout shutting down in 2 min This message appears along with a beep sound, and the display battery status LED glows red. This happens when the display battery has less than 10 % of charge remaining. Connect the Tester display to its ac adapter or a USB port to continue operation. If this message is ignored, the Tester display will turn off in two minutes.

Detector self test failed The detector is faulty and needs repair.

Contact the Fluke Biomedical Service Center.

Detector Zero Error The zero signal from one or more of the internal x-ray detectors is too high. Verify that there are no x-rays present and press Retry to check error status again. Press the Connect button to turn off the detector and initiate scanning. If this error persists, contact the Fluke Biomedical Service Center.

NO DETECTOR FOUND Screen/Window This message screen/window appears when there are no detectors present in the vicinity or if the detector is powered off. Move the detector closer to the display or computer; ensure that the detector is powered on.

Kernel/Application Upgrade Failed This message appears during a firmware upgrade, if the firmware upgrade fails.

Contact the Fluke Biomedical Service Center.

Measured quantities showing HIGH This message indicates a detector overrange. Reduce the x-ray intensity by reducing mA or increasing source to detector distance.

Measured quantities showing LOW This message indicates a detector underrange. There is not enough x-ray intensity to make an accurate measurement. Increase the x-ray intensity by increasing mA or decreasing source to detector distance.

Measured quantities showing NNNN HIGH or NNNN LOW (Where NNNN is the measurement data)

This message indicates that the measured quantity is above or below the calibrated range of the measurement.

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Appendix C Troubleshooting

Problems with the Tester, possible causes, and corrections are described in Table C-1.

Table C-1. Troubleshooting the Tester

Problem Cause Corrections

Detector or Tester display does not power on.

The battery is fully discharged.

Connect to the ac adapter and plug in to a power source or connect the unit to a computer via USB cable.

If problem persists, the Tester detector/display needs repair. Contact the Fluke Biomedical Service Center.

Detector or Tester display battery does not appear to hold the charge.

The battery is faulty. A fully charged battery can hold the charge for approximately 8 hours when the unit is powered on.

If the battery does not appear to hold sufficient charge, verify that the battery is being charged. Connect the ac adapter to the unit and plug it into a suitable power source. The Battery status LED glows green, indicating that the battery is charging. If the Battery status LED does not glow, the battery is not charging, and the unit needs repair. Contact the Fluke Biomedical Service Center.


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Table C-1. Troubleshooting the Tester (cont.)

Problem Cause Corrections

The detector is out of the connectivity range.

Move the detector within range when there is wireless communication.

Tester display is not communicating with detector.

The USB cable is not connected properly.

Connect the USB cable properly.

The Zigbee dongle is not connected properly

Connect the Zigbee dongle properly.

The detector is out of the connectivity range.

Move the detector within range when there is wireless communication.

Detector is not communicating with the computer (Excel Add-In).

The USB cable is not connected properly.

Connect the USB cable properly.

Cursor movement is continuous or uncontrolled on the Tester display.

One of the keys on the Tester display is stuck in the engaged position.

Check each button to see if any key is stuck in the engaged position and needs to be lifted up. If the key’s function cannot be restored, the Tester display needs repair. Contact the Fluke Biomedical Service Center.

Tester display or detector is not responding.

Press the Reset switch on the underside of the unit.

If the problem persists, contact the Fluke Biomedical Service Center.

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Appendix D Excel Template Help

Introduction An Excel template is a workbook that has standard text such as column headings, formulae, macros and other formatting for new workbooks. New workbooks created using a template contain the same text and formatting of the template. A TNT 12000 Excel Add-In template contains worksheets formatted to help automate the performance of typical tests, and it can be modified to meet specific testing requirements. When using a template, one should not open the template file itself, but create a new workbook using the template file. This section describes some of these templates and worksheets and how to enter data in addition to that described in Using the PC Based Excel Add-In Software. See this chapter also for procedures relating to generating reports, printing sheets, and modifying templates.

Radio Template The Radiography template contains the following worksheets: • Help • Survey Data • Repro - Exposure Reproducibility • Accuracy - kVp and Timer Accuracy • Linearity • HVL • Report • Manual Waveforms • Auto Waveforms


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Each of the worksheets, except for the waveform worksheets, contains a Help button that takes the user to the appropriate section of the Help worksheet. The TNT 12000 Radiography Excel template is shown in Figure D-1.

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Figure D-1. Radiography Excel Template

The Survey Data worksheet is used to enter information, which identifies the survey to be performed. The remaining worksheets contain links to the Survey Data worksheet so that the information is available on each worksheet.

Survey Data Sheet The Survey Data sheet is used to enter information that identifies the survey to be performed. To complete the Survey Data sheet: 1. Select the yellow cell next to the field to be entered and type the data into the active

blank cell. The entered survey data are placed on all applicable sheets. 2. Click the Today button to insert the current computer date automatically into the

Date field. 3. Click either the inches or the cm button in the SDD Units box to enter the

measurement unit. The selected units are entered on all applicable sheets.

Note The template will not convert results to the units selected. This selection is only used as a label. For accurate reporting, the units selected must match the units for which the Tester is set up.

Appendices Excel Template Help D

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4. When setting up for a generator, two options are available for mAs determination: mAs or user entered mA * exposure time: • When evaluating a generator with selectable mAs, click the mAs button in the

Generator Setup box. • When evaluating a generator with selectable mA and exposure time, click the

mA*time button in the Generator Setup box. 5. Click the Clear button to clear the survey data. This button clears all of the user

entry fields.

Note The radio buttons are not reset.

Repro Sheet – Exposure Reproducibility Reproducibility is tested by making a series of exposures, all at the same machine settings. The average and coefficient of variation (CV) are then calculated for all measured values. The coefficient of variation is defined as the standard deviation divided by the average. The CVs of the measured results are then compared to the CV that has been entered as a pass/fail criterion, and the pass/fail results are displayed in the Pass/Fail fields shown in Figure D-2.

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Figure D-2. Excel Repro Sheet

To evaluate Exposure Reproducibility: 1. Enter the machine settings to be used for the test.

• If mAs has been selected in the mAs Options box on the Survey Data worksheet, mAs can be entered in Machine Settings.

• If mA*time has been selected in the mAs Options box on the Survey Data worksheet, mA and msec (exposure time) can be entered in Machine Settings.

2. Enter the desired maximum CV as the Pass/Fail Criterion.


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3. Check the desired waveform to cause the waveform to be extracted from the Tester when the measured data is received.

Note Waveform boxes must be checked prior to making a measurement.

After an exposure is made next to a checked waveform box, the exposure data and waveform data are placed in the Waveform worksheet, and a waveform chart is created on a new chart sheet.

4. When finished reviewing the waveform, click the Repro tab to return to the Repro worksheet.

Note After the waveform data has been placed in the Waveforms worksheet, the cursor is positioned for the next waveform data set. Use care when viewing or accessing waveform data in the Waveforms worksheet, making sure that the cursor is placed to the right of any previous waveform data; otherwise previous waveform data may be overwritten.

5. Click the first cell in the first column (kVp) of the Data area, measured data from the Tester appears here after each exposure.

6. Click the Clear button to erase all measured data.

Accuracy Sheet - kVp and Timer Accuracy is tested by making a series of exposures at specific machine settings and comparing the measured results to the machine settings. The percent error of the measured results are then compared to the percent errors that have been entered as pass/fail criteria and the pass/fail results are displayed in the Pass/Fail fields shown in Figure D-3.

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Figure D-3. Excel Accuracy Sheet

To evaluate Accuracy: 1. Enter the machine settings to be used for the test.

1. If mAs has been selected in the mAs Options box on the Survey Data worksheet, mAs can be entered in Machine Settings.


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2. If mA*time has been selected in the mAs Options box on the Survey Data worksheet, mA and msec (exposure time) can be entered in Machine Settings.

2. Enter the maximum percent error for kVp Avg and timer accuracy (depending upon the status of mAs options on the Survey Data worksheet) as the Pass/Fail Criteria. The kV pass/fail criteria can be x %, xkV, or x %+y kV. Select the first option to use ±x percent and ±x kV, select the second option to use (x%+y kV). If one of the error criteria is set to zero, the error checking is disabled for the zero value.

3. Check the desired waveform to be extracted from the Tester when the measured data is received.

Note Waveform boxes must be checked prior to making a measurement. After an exposure is made next to a checked waveform box, the exposure data and waveform data are placed in the Waveform worksheet, and a waveform chart is created in a new worksheet.

4. When finished reviewing the waveform, click the Accuracy tab to return to the Accuracy worksheet.

Note After the waveform data has been placed in the Waveforms worksheet, the cursor is positioned for the next waveform data set. Use care when viewing or accessing waveform data in the Waveforms worksheet, making sure that the cursor is placed to the right of any previous waveform data; otherwise previous waveform data may be overwritten. 5. Click the first cell in the first column (kVp) of the Data area. Measured data from the

Tester appears here after each exposure. 6. Click the Clear button to erase all measured data.


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Linearity Sheet Linearity (mA or mAs) is evaluated by calculating the mR/mAs (uGy/mAs) at each mA or mAs station and calculating the linearity coefficient between consecutive mA or mAs stations. The coefficient of linearity (CL) is calculated by the formula (X1-X2)/(X1+X2), where X1 and X2 are mR/mAs values obtained at each of two consecutive mA or mAs stations. Figure D-4 shows the Excel worksheet for calculating linearity.

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Figure D-4. Excel Linearity Sheet

To evaluate Linearity: 1. Enter the machine settings to be used for the test.

3. If mAs has been selected in the Generator Setup Options box on the Survey Data worksheet, only kVp can be entered in Machine Settings.

4. If mA*time has been selected in the Generator Setup Options box on the Survey Data worksheet, kVp and msec (exposure time) can be entered in Machine Settings.

2. Enter the mA/mAs set values to be used for the mA/mAs linearity test. • If mAs has been selected in the Generator Setup Options box on the Survey

Data worksheet, mAs can be entered in the Set mAs column. • If mA*time has been selected in the Generator Setup Options box on the

Survey Data worksheet, mA can be entered in the Set mA column. 3. Check the Adj. check boxes if the mA/mAs stations are adjacent.

• If the Adj. check box is checked for a mA/mAs station, it is considered adjacent to the previous station. In addition, the pass-fail criterion for adjacent stations is used.

• If the Adj. check box is not checked, the pass/fail criterion for non-adjacent stations is used.

4. Enter the maximum CL of mR/mAs for adjacent and non- adjacent mA/mAs stations as the Pass/Fail Criterion.


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5. Click on the first cell in the first column (kVp) of the Measurements area. The measured data from the Tester appears here after each exposure.

6. Click the Clear button to erase all measured data.

HVL Sheet Half Value Layer is calculated using the equation:

[Tb ln(2Ea/Eo) - Ta ln(2Eb/Eo)] / ln(Ea/Eb) Where: Ta and Tb are the filter thicknesses just above and below the HVL, (Ta<Tb) Eo = exposure w/o filtration, exposures Ea and Eb correspond to thicknesses Ta and Tb (Ea>Eb). Figure D-5 shows the Excel worksheet for computing the Half Value Layer.

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Figure D-5. Excel HVL Sheet

To evaluate Half Value Layer: 1. Enter the machine settings to be used for the test.

5. If mAs has been selected in the mAs Options box on the Survey Data worksheet, mAs can be entered in Machine Settings.

6. If mA*time has been selected in the mAs Options box on the Survey Data worksheet, mA and msec (exposure time) can be entered in Machine Settings.

2. Enter the desired minimum HVL as the Pass/Fail Criterion. 3. Click the first cell in the first column (kVp) of the Measurements area. The

measured data from the Tester appears here after each exposure. 4. Enter the thickness in mmAl of each of the aluminum filters used to make an HVL

exposure measurement. 5. Click the Clear button to erase all measured data.


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Waveform Sheets – Manual and Auto kV waveforms can be automatically retrieved from the Tester by clicking on the kV waveform checkboxes in the Repro and/or Accuracy worksheets. When waveforms are retrieved automatically, the waveform data is stored in the Auto Waveforms worksheet, and waveform charts, as shown in Figure D-6, are created in new chart sheets.

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Figure D-6. KV Waveform

Note After the waveform data has been placed in the Waveforms worksheet, the cursor is positioned for the next waveform data set. Use care when viewing or accessing waveform data in the Auto Waveforms worksheet, making sure that the cursor is placed to the right of any previous waveform data; otherwise previous waveform data may be overwritten.

To manually retrieve kV waveforms, select Download Waveform... from the Tester Excel Add-In menu. It is strongly suggested that the Manual Waveforms worksheet is used for manually retrieved waveforms. This helps to avoid any problems overwriting data on the Auto Waveforms worksheet.

Note Use care when viewing or accessing waveform data in either of the Waveforms worksheets, making sure that the cursor is placed to the right of any previous waveform data to keep previous waveform data from being overwritten. When waveforms are retrieved from the Tester, the waveform data is stored, starting at the present cursor position and moving down and to the right. If a waveform is requested while the cursor is in a measured data area in a worksheet, the existing measured data will be overwritten. If this occurs, it cannot be undone.


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Fluoro Template The Fluoro template contains the following worksheets: • Help • Survey Data • kV Accuracy • HVL • Exposure Rate • Report Each worksheet, except for the Report, contains a Help button that takes the user to the appropriate section of the Help worksheet. The Survey Data worksheet is used to enter information that identifies the survey to be performed. The remaining worksheets contain links to the Survey Data worksheet so that the information is available on each worksheet. The TNT 12000 Fluorography Excel template is shown in Figure D-7.

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Figure D-7. Excel Survey Data Sheet

Survey Data Sheet The Survey Data sheet is used to enter the information that identifies the survey to be performed. To complete the Survey Data sheet: 1. Select the gray cell next to the field to be entered and type the data into the active

blank cell. The entered survey data are placed on all applicable sheets. 2. Click the Today button to insert the current computer date automatically into the

Date field. 3. Click either the inches or the cm button in the SDD Units box to enter

measurement units. The selected units are applied to all applicable sheets.

Note The template will not convert results to the units selected. This selection is only used as a label. For accurate reporting, the units selected must match the units for which the Tester is set up.

4. Click the Clear button to clear the survey data. This button clears all of the user entry fields.


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Note The radio buttons are not reset.

kV Accuracy Sheet Accuracy is tested by making a series of exposures at specific machine settings and comparing the measured results to the machine settings. The percent error of the measured results are then compared to the percent errors that have been entered as pass/fail criteria and the pass/fail results are displayed in the Pass/Fail fields shown in Figure D-8.

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Figure D-8. Excel KVp Accuracy Sheet

To evaluate kV Accuracy: 1. Enter the machine settings to be used for the test. 2. Enter the maximum percent error for kVp as the Pass/Fail Criterion. 3. Click the first cell in the first column (kVp) of the Measurements area. Measured

data from the Tester appears here after each exposure. 4. Click the Clear button to erase all measured data.


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HVL sheet Half Value Layer is calculated using the equation:

[Tb ln(2Ea/Eo) - Ta ln(2Eb/Eo)] / ln(Ea/Eb) Where: Ta and Tb are the filter thicknesses just above and below the HVL, (Ta<Tb) Eo = exposure w/o filtration, exposures Ea and Eb correspond to thicknesses Ta and Tb (Ea>Eb). Figure D-9 shows the Excel sheet for calculating Half Value Layer.

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Figure D-9. Excel HVL Sheet

To evaluate Half Value Layer: 1. Enter the machine settings to be used for the test. 2. Enter the desired minimum HVL as the Pass/Fail Criterion. 3. Click the first cell in the first column (kVp Avg) of the Measurements area. The

measured data from the Tester appears here after each exposure. 4. Enter the thickness in mmAl of each of the aluminum filters used to make an HVL

exposure measurement. 5. Click the Clear button to erase all measured data.


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Exposure Rate Sheet The Exposure Rate worksheet shown in Figure D-10 is used to record maximum exposure rates. The maximum exposure rate is compared to the measured exposure rate. If the measured exposure rate is greater than the maximum exposure rate, a FAIL is indicated.

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Figure D-10. Excel Exposure Worksheet

To evaluate Exposure Rate: 1. Enter the machine settings to be used for this test. 2. Enter the maximum allowable exposure rate in the same units as the Tester is

configured for as the Pass/Fail Criterion. See Exposure Units. 3. Click the first cell in the first column (kV) of the Measurements Area. Measured

data from the Tester appears here after each exposure. 4. Click the Clear button to erase all measured data.


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Exposure Units The TNT 12000 Excel Add-In Toolkit always inserts the data into Excel using the same exposure unit scale. This is done so that calculations can be performed correctly. Table D-1 shows the unit, scale and output:

Table D-1. Exposure Units

Unit Scale Output

R m mR

R/sec m mR/sec

R/min m mR/min

R/hr m mR/hr

R/Pulse m mR/Pulse

Gy u uGy

Gy/sec u uGy/sec

Gy/min u uGy/min

Gy/hr u uGy/hr

Gy/Pulse u uGy/Pulse

Order of Imported Measurement Data Table D-2 shows the column order that measurements are imported into an Excel spreadsheet. The row of measured data is imported, starting at the active (selected) worksheet cell. When all of the measured data has been imported, or when the stop button is pressed in Fluoro mode, the active cell is moved down one row. New measurement data will be imported at the new active cell location.

Table D-2. Import Order of Measurement Data

Radio and Dental Modes

kVp Avg kVp Max kV PPV Exposure Exposure Rate

Exposure Time, msec [1]

Exposure Time, Pulses [1]

HVL in mm Al

Mammo Mode


Exposure Time, msec [2]

HVL in mm Al

Fluoro Mode


Exposure Time

Pulse Rate [2]

Average Pulse Width [2]

HVL in mm Al

[1] Exposure time is sent to the spreadsheet according to the selected Time Units (msec or pulses). [2] Pulse Rate and Pulse Width are only sent to the spreadsheet when Pulsed Fluoro Type is selected.


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