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HPT001.306 Rev. 3 Page 1 of 33 TP-1 TVAN Technical Training Health Physics (RADCON) Initial Training...
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HPT001.306 Rev. 3 Page 1 of 33 TP-1 TVAN Technical Training Health Physics (RADCON) Initial Training Program Response Checks of Portable Radiation Detection Instruments HPT 001.306
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Transcript of HPT001.306 Rev. 3 Page 1 of 33 TP-1 TVAN Technical Training Health Physics (RADCON) Initial Training...
HPT001.306Rev. 3Page 1 of 33
TP-1 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Response Checks of PortableRadiation Detection Instruments
HPT 001.306
HPT001.306Rev. 3Page 2 of 33
TP-2 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Enabling Objectives
Name Instrument Control Procedure
State Calibration Organization
State Frequency of Response Checks
Identify Response Check Equipment
Identify Shepherd Components
HPT001.306Rev. 3Page 3 of 33
TP-3 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Enabling Objectives
State Isotopes & Activity for Shepherd Sources
Identify Response Window Criteria Identify Instruments Response
Checked with Plutonium State Purpose of Scintrex Model
309A
HPT001.306Rev. 3Page 4 of 33
TP-4 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Instrumentation Controls
TVAN RCDP-8,
“Radiological Instrument/ Equipment Controls”
HPT001.306Rev. 3Page 5 of 33
TP-5 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Instrument Calibration
Portable Radiation Detection Instruments Calibrated by:
Environmental RadiologicalMonitoring & Instrumentation (ERM&I)
Western Area Radiological Laboratory,(WARL) Muscle Shoals, AL
HPT001.306Rev. 3Page 6 of 33
TP-6 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Response Check Frequency
Teletector & RSO-7 Daily Beta-Gamma Instruments Weekly Alpha & Beta Friskers Weekly Neutron Dose Instruments Weekly On-Site REP Instruments Weekly Electronic Dosimeters
Quarterly
HPT001.306Rev. 3Page 7 of 33
TP-7 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Response Checks ofBeta-Gamma Dose Instruments
Shepherd Model 89 Irradiator
- Source Rod Assembly
- Shielded Calibration Range
Assembly
- Attenuator Assembly
- Table Assembly
HPT001.306Rev. 3Page 8 of 33
TP-8 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Shepherd Source Rod Assembly
Cs-137130 mCi400 Ci
HPT001.306Rev. 3Page 9 of 33
TP-9 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Shepherd Shielded Calibration Range Assembly
HPT001.306Rev. 3Page 10 of 33
TP-10 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Shepherd Attenuator Assembly
HPT001.306Rev. 3Page 11 of 33
TP-11 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Shepherd Table Assembly
HPT001.306Rev. 3Page 12 of 33
TP-12 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Shepherd Precautions
Plugs in Unused Access Ports Hands & Fingers Clear of Door Never Lubricate Source Rod Don’t Twist Attenuator Handles Move Table Slowly Utilize Survey Meter
HPT001.306Rev. 3Page 13 of 33
TP-13 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Shepherd Performance Checks
Test the Interlock System- Attempt to Raise Source or Open Door with Power Off- Attempt to Raise Source with Door Open- Attempt to Open Door with Source Raised
HPT001.306Rev. 3Page 14 of 33
TP-14 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Establishing Response Windows
Expose at Least Four Instruments
Exposure Values Near Midscale
Set Window for Each Scale
HPT001.306Rev. 3Page 15 of 33
TP-15 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Response Window Criteria
Arithmetic Mean of all Instruments Calculate Highest Percent Difference Calculate Lowest Percent Difference Discard Highest or Lowest Percent
Difference if Exceed 10 Percent Response Window = Mean ± 20 % Expressed as Range
HPT001.306Rev. 3Page 16 of 33
TP-16 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Instrument Pre-Operational Checks
Inspect for Damage Inspect Switches, Alarms, Controls Inspect Cables & Power Cords Check Battery Strength Instrument in Calibration
HPT001.306Rev. 3Page 17 of 33
TP-17 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Performing Response Checks with Shepherd Irradiator
Position Instrument on Guide
- Beta Gamma Survey Meter
- Teletector
- Electronic Dosimeter
HPT001.306Rev. 3Page 18 of 33
TP-18 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Beta-Gamma Survey Meter
HPT001.306Rev. 3Page 19 of 33
TP-19 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Teletector
HPT001.306Rev. 3Page 20 of 33
TP-20 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Electronic Dosimeter
HPT001.306Rev. 3Page 21 of 33
TP-21 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Performing Response Checks with Shepherd Irradiator Position Attenuators and Platform Close Door Raise Source to make Exposure Lower Source to “Off” Repeat for Each Scale Document Results
HPT001.306Rev. 3Page 22 of 33
TP-22 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Observation Window
HPT001.306Rev. 3Page 23 of 33
TP-23 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Response Check of AlphaSurvey Instruments Alpha Sources, ie Pu-239 Inspect Mylar Windows Perform Light Test Expose Detector Compare Results with Response Log Check Each Scale or Decade Document Results
HPT001.306Rev. 3Page 24 of 33
TP-24 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Alpha Survey Instrument
HPT001.306Rev. 3Page 25 of 33
TP-25 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Neutron Survey Instrument
HPT001.306Rev. 3Page 26 of 33
TP-26 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Response Check ofNeutron Instruments
Set up the Instrument Scale Instrument Over Neutron Source Check Other Scales/Decades with
Pulse Generator Compare Results with Response
Log Document Results
HPT001.306Rev. 3Page 27 of 33
TP-27 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Frisker
HPT001.306Rev. 3Page 28 of 33
TP-28 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Response Check ofFriskers
Sources Identified in Response Log Set Frisker to Appropriate
Range/Scale Position Probe over Source Repeat for Other Scales Compare Results with Response Log Document Results
HPT001.306Rev. 3Page 29 of 33
TP-29 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Tritium in Air Monitor
HPT001.306Rev. 3Page 30 of 33
TP-30 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Response Check ofScintrex Model 309A
Inspect Filter Paper Ensure Battery >3.0 volts Set Function Switch to ‘Display On’ Press ‘Test’ Button Observe Display < 50
HPT001.306Rev. 3Page 31 of 33
TP-31 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Response Check ofScintrex Model 309A
Position Gamma Source on Right Side
Wait 1-2 Minutes Observe Reading Between 8 & 24 Depress ‘Test’ Button Document Results
HPT001.306Rev. 3Page 32 of 33
TP-32 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Summary Instrument Calibration Critical Response Checks Confirm Operation Shepherd Model 89 Irradiator Other Response Checks:
- Alpha Survey Instruments- Neutron Instruments- Friskers- Tritium-in-Air
HPT001.306Rev. 3Page 33 of 33
TP-33 TVAN Technical TrainingHealth Physics (RADCON) Initial Training Program
Prevent Errors -Reduce Contamination
