radiation safety refresher for radiation workers bruce busby radiation safety officer genentech,...

Radiation Safety Refresher for Radiation Safety Refresher for Radiation WorkersRadiation Workers

Radiation Safety Refresher for Radiation Safety Refresher for Radiation WorkersRadiation Workers

Bruce Busby

Radiation Safety Officer

Genentech, Inc.

2001

Today’s Objective

Review isotope control system Review of safety handling of radioactive

material Review deliberate mis-use incidents

(MIT/NIH) TEST!!!!!!!!!!!!!! Answer questions

Introduction

Why have Radiation Safety?

– Required by State regulation (Title 17 CCR)

i.e., we can not work with rad without it– Employee risk perception– Public perception of company– Real risk of radiation?

Perception vice Risk

Genentech, Inc.

220 Rad labs in 12 Buildings 105 Rad PI’s 320 Rad workers 14 isotopes in inventory >1700 packages in year 2000 10 “hazardous” Lasers 11 X-ray machines

State of California Regulation

Radioactive Material License 3345-41 Cal Regulations Title 17, Div 1, Chapter 5 US 10 CFR 20

EPA, DOT, OSHA, etc

Ordering Radioactive Material

Key Points Only AUTHORIZED persons can order Must be with authorized limits BOTH are being verified by purchasing Must be delivered to Receiving Department

Receiving Radioactive Material I

Key Points All rad material must go through receiving

department Must be surveyed for contamination Must be entered into our tracking system

Receiving Radioactive Material II

Key Points All vials must be surveyed in lab too All packages must have inventory sheet

(yellow sheet) All packages must have shipping number,

that will look like

99-0682

Storage of Radioactive Material

Key Points All radioactive material must be secure at all

times Sign and date the Yellow Sheet Storage of stock vials should not cause undue

exposure Consider volatility, biologic degrading and

other temperature requirements

Use of Radioactive Material

Key Points ALARA

– Time, Distance and Shielding Work over absorbent Keep area clean Mark items as radioactive if not under

constant surveillance or readily apparent what they are

Surveys 101

Key Points Use appropriate instruments Check prior to use (4 checks) Have “on” when working Use proper techniques When are surveys required?

– During use and after use– DOCUMENT - weekly or after use

Waste

Key Points Segregate waste to the extent possible Liquid vs Solid Short vs Long Lived Special - mixed, biological, LSC Shipping vials - remove lead first Label Containers with isotope Waste Pick ups

Problems and Murphy’s Law

Key Points No yellow sheet No inventory sticker Lost yellow sheets Lost isotope Transferring isotope between researchers Shipping boxes not defaced

Deliberate Misconduct - 1996 NIH

– Water cooler spiked with P-32– Doses up to 12 rem (8 rem fetal)– 26 people exposed

MIT– Food spiked– 1 researcher– Doses up to 5 rem

Cited for security - found on routine surveys

Consequences of non-compliance Loss of control of radioactive material

– Unnecessary personal and/or public dose– Environmental contamination– Loss of public faith– Negative media and image

Restriction on use by RSO Notices of non-compliance by State Cease and desist order by State Loose license totally (extreme)

TESTTEST

TESTTEST

TESTTEST

TESTWho Wants to be a Zillionaire!!!!!!!!!

Notice: void where prohibited, prizes awarded may look smaller in the rear view mirror,, not legal in states that

have blackouts or during months that end in “r”, “h” or “y”. Due to current regulations, prizes may not be awarded this millennium. All participants are reminded that patience is a virtue, do not drink and drive. Humor is intentional.

Let’s Play

$1 question

Major risk of occupational exposure is

A) Mutant super human powers

B) Very slight increase in cancer

C) Brain freeze D) Not getting mutant super human powers

$200 question

Genentech uses radiation for

A) Fun B) Instilling mutant super human powers

C) Hormesis D) Basic biological research

$32,000 question

Radiation is

A) Energy in transit B) Just at Genentech

C) Evil D) What pays Bruce’s rent

$250,000 question?

If you get contamination on you, you should

A) Run B) Wash it off with warm water and soap

C) Call the National Enquirer

D) Hope for cool mutant super human powers vice regular boring ones

1 Zillion dollar question

Who should you call with your radiation questions

A) You lifeline buddy from Who Wants to be a Zillionare

B) Someone with mutant powers who knows all

C) Alex Tribeck D) Your friendly Radiation Safety Officer

Where to Get More Info

Forms, Instructions– gwiz/groups/Ehs/rad/

General Information – www.physics.isu.edu/radinf

Notice to Employee posted on site– License location, NOV, State Contact

State Radiologic Health Branch– www.dhs.ca.gov/rhb/

Thanks for Coming!Questions?

Contact Info

Bruce Busby

RSO

MS 71

bbusby@gene.com

phone 5-2959