Radionuclide Safety and Methodology Course DAY 2 “The More Practical Stuff”

Radionuclide Safety and

Methodology Course

DAY 2

“The More Practical Stuff”

Review – Day 1• Regulations, Legislation & Responsibilities

– CNSC, RSO• Historical Context• Isotopes & Ionizing Radiation:

– Alpha, beta, gamma, X-ray, positrons, annihilation reactions

– Ionizing vs non-ionizing reactions

Review – Day 1• Radioactive Decay Principles

– Useful today: disposal & record keeping• Units of Measurement

– Becquerel: dps– Gray: absorbed dose– Seivert: dose equivalent.

• Instruments of Measurement– Dosimeters– Survey: GM & Scintillation– Indirect: Scintillation & Gamma

Review – Day 1• Doses & Maximums

– NEW vs. Public– Women vs. Men?

• Effects of Ionization Radiation on Biological Systems– Acute Vs. Chronic– Stochastic Effects?– Tissue & Individual Specifics?

Reminder:• Memorize for the exam:

– 2 isotopes: • half-life• energy (keV)• type of emission• Required shielding

– Table 1, Table 4- shielding - Manual

This Section:• Purchasing• Shipping & Receiving• Documentation• Contamination Control• Permits• Annual Inventory Report

RECORD KEEPING

Radiation Sources in the Workplace

RECORD KEEPING1. PURCHASING RADIATION

2. UBC RADIATION DATASHEET

- Receiving radiation- Using radiation- Contamination control- Disposal

PURCHASING RADIATION- What you Need to know -

• Exemption quantities no longer apply!

• All purchases of nuclear materials must be made through the radiation purchasing system.


• License Restrictions• Web-based Purchasing


UBC LICENSE RESTRICTIONS

– Issued by the CNSC– Sets Maximum UBC Possession

Limits– Defines UBC License

Restrictions


UBC LICENSE RESTRICTIONS

- Radiation use must first be OK’d by the UBC Radiation Safety Office (any amount)

WHY???- UBC might not be allowed to have it!

PURCHASING RADIATION- What you Need to know -UBC Web-based Purchasing System

www.ubc.ca/okanagan/hse/safety/radioisotope.html

PURCHASING

Who needs to use it?

- All UBC Permit Holders- For any isotope on your permit- For any amount of isotope

http://web.ubc.ca/okanagan/hse/welcome.html

How does it work?• Set-up account prior to ordering• Check “send order by e-mail” OR fax on-

line system receipt

• Missing Vendors?– Contact HSE to have them added

PURCHASING RECORDS-All UBC Users-

Records you need to Keep:

• The last page of your online purchase. *Take this with you to receiving when picking up your order.*

• Your shipment documents

RECEIVING CLASS 7 DANGEROUS GOODS

TRAINING PPE CHECK THE LABELS VERIFY BOX for DAMAGE MONITOR AND SHIELD FUME HOOD WIPE TEST VERIFY CONTENTS DOCUMENT


TRAINING

- The person who receives it MUST take this course


PPE

- Put on gloves to handle the box


CHECK THE LABELS

Class 7 Radioactive Material (TDG)

Contains:

Limited activity

Minimal detectable radiation on surface

(< 5 Sv/h)

EXCEPTED PACKAGE

Radioactive Material, Excepted PackageThis package contains radioactive material, excepted package and is in all respects in compliance with the applicable international and national governmental regulations.

UNThe information for this package need not appear on the Notification to Captain (NOTOC)

RADIOACTIVE lContents______Activity________

Field on any Surface< 5 Sv/h

No Transport Index (TI) 7

RADIOACTIVE I

RADIOACTIVE llContents______Activity________

Transport Index

Field on any Surface

> 5 Sv/h And< 0.5 mSv/h

TI > 0 and < 1 7

RADIOACTIVE II

RADIOACTIVE lllContents______Activity________

Transport Index

Field on any Surface

> 0.5 mSv/hAnd< 2.0 mSv/h

TI > 1 and < 107

RADIOACTIVE III

Receiving Class 7 DG• Inspect for damage• Monitor & Shield• Fume hood• Wipe test• Document


INSPECT BOX for DAMAGE

If the package is damaged, you don’thave to accept it!


MONITOR AND SHIELD

1. Monitor the surface of the package with a Survey Meter

2. Shield package if required (>2.5Sv/hr)


FUME HOOD

Place the box in a fume hood beforeopening


WIPE TEST

Wipe test the surface of the box to check for contamination


DOCUMENT

Record the results of the wipe tests and the Vial Identifier information

µCi or


DOCUMENTS

- If your shipment has one, keep the Shipper’s Declaration Form for shipments from OUTSIDE Canada

- Keep these records for 3 years!


All Permit Holders!! UPDATE the UBC web-basedPurchasing System!

- Date Received- Name of person who received it- VIAL ID – unique to the vial.


IMMEDIATELY Contact HSE when:

1. You have questions about the package

2. The order is lost or stolen

Regulations for Shipping Class 7 Dangerous Goods

Transport Canada (TDG regulations) Shipments by Road

International Air Transport Authority Regulations (IATA) Shipments by Air

Transport Packaging of Radioactive Materials Regulations (CNSC)

Shipping Class 7 Dangerous Goods

Must have specialized training in theshipping of Class 7 Dangerous Goods

(NOT this course)

Contact HSE for more info.

USING RADIATION @ UBC

• Stock vial access – Record user name (First, Last)– Record date (year/month/day)

Radioisotope Data Sheets

USING RADIATION @ UBC

• Record How Much Activity is Removed– Record either Activity OR

Volume used

µCi or

CONTAMINATION CONTROL @ UBC

• With a Survey Meter– Check for Hot Spots

• Wipe Tests– Mandatory– At the end of the day of each use– Dates must match the date of

accessing your stock vial!


• Map• Results• Date • Document user’s FULL Name• Background (Negative Control)


What is considered contaminated?


UBC Policy

100 cpm > Background


If > 100cpm above background- Clean

- Re-WIPE- Document

CONTAMINATION CONTROL RECORDS

Wipe tests must be performed immediately following the use of radioactive materials. Results must be saved or recorded in numerical format. Action level for decontamination is 100 CPM above background. Rewipe results of decontaminated surfaces must be recorded.

Usage Date

User's Name

Control Counts

Site Location or

number

Site Location or

number

Site Location or

number

Site Location or

number

Site Location or

number

Site Location or

number

Site Location or

number

Site Location or

number

2009/01/06

2009/01/09

2009/01/15

Amy Brainy

Marvin

Martian

Al Gore

23

2618

63 23 29 22320

86 63 19

24 53 23 19 28172330188

34 22 26 29 33 53 43

1 2 3 4 FH Floor Bench Cent

RADIATION DISPOSAL @ UBC

Methods:1. Decay (for all isotopes with ½-life < 90

days)2. Drains (aqueous non-toxic)

Red Cans (solvent)3. Combustible Waste (Pathological,

Biological only)4. Non-Combustible Waste (Solid)

RADIATION DISPOSAL @ UBC

DOCUMENT

How much radioactivity (in MBq)

The method of disposal

RECORDS TO RETAIN* All UBC Users *

Purchase Information Use Information (UBC Radioisotope Data

Sheet) On-hand Amount (inventory) - ongoing Contamination Control Disposal (Radioisotope Data Sheet)

11. Radioisotope Licensing

PERMITS

Required by: Any faculty member wishing to - Purchase

- Use - Possess/Store - Dispose

PERMITS Application Process

Any faculty member at UBC qualifies to apply

An application form is submitted to HSE It is then reviewed by the UBC

Radioisotopes Committee License is processed & posted in approved

building/lab space

Lab Classification*Laboratories are classified as Basic, Intermediate or High Level based on the amount of activity that is handled at onetime. This is tracked by the purchasingrecords.

*Intermediate and High Level labs requireapproval by the CNSC.

*Be aware that if you are increasing your purchase amounts, you must not exceed the limit set by your lab classification!

Example for P-32: Maximum amount to be handled:

Basic Level: 34.5 MBq

Intermediate: 345 MBq

High: 3450 MBq

Do not order single quantities >34.5 MBq !

PERMITSAmendments

Contact HSEBEFORE you make the change!!!

PERMITSAmendments

If you need to change: Isotope Building/Room Usage

Add Delete Increase Decrease

PERMITSAmendments

Send a written request to HSE-An email will do-

Annual Inventory Report

UBC reports to the CNSC annually

Summary of: Purchases Disposal Possession at end of year For each isotope on the license

Annual Inventory ReportUBC Permit Holders report to the

RSO annually

Summary of: Purchases Disposal/transfer Possession at end of year For all radioisotopes on permit By January 31st of each year

Record Keeping/Licensing Summary

• Purchase• Receiving• Use • Disposal• Contamination Control• Shipping (when applicable)• Amendments • Annual Inventory

Review this Section:• Purchasing• Shipping & Receiving• Documentation• Contamination Control• Permits• Annual Inventory Report

Questions?• How much area should be covered for

each wipe in a wipe test?

• When should a work area be tested for radiation exposure and by whom?

• How do you pay a supplier of radioactive material?

Questions?• Which type of packaging is the least

hazardous to the user?

• How do you ship class 7 materials?

• Can anyone receive class 7 materials?

Questions?• Name the steps when receiving a

radioisotope package?

• When must the annual report be completed?

Radionuclide Safety and Methodology Course DAY 2 “The More Practical Stuff”

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