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Environment, Health & Safety. Radiation Safety Seminar 2010. Robert Carrara David Skydel. 2010. Topics. Licensing/Administration User responsibilities Working with isotopes Other Important Information

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slide1

Environment, Health & Safety

Radiation Safety Seminar

2010

Robert Carrara

David Skydel

2010

topics
Topics
  • Licensing/Administration
  • User responsibilities
  • Working with isotopes
  • Other Important Information

You will receive a Certificate of Completion for this seminar sent to the mail code you provided on your enrollment form.

slide3

List

5 Key concepts you must take away from this seminar and will be held accountable for while you remain an active user listed on an RUA.

1:

2:

3:

4:

5:

slide5

Radiation Safety Manual (RSM)

  • Keep this manual as an
  • electronic file.
  • http://blink.ucsd.edu/menu/rad
  • Book mark location on your computer.
  • You must be able to access this manual upon demand and it must be the current version.
  • Book marking assures you will always have the current version available.

#1

slide6

List

5 Key concepts you must take away from this seminar and will be held accountable for while you remain an active user listed on an RUA.

1:

2:

3:

4:

5:

Know how to access your RSM

slide7

General Information

Human Protocols

Demographic Information

Standard Requirements

Laboratory Locations

Radiation Safety Officer Signature

Menu of Isotopes

#2

Authorized Users

General Precautions

Animal Protocols

slide8

List

5 Key concepts you must take away from this seminar and will be held accountable for while you remain an active user listed on an RUA.

1:

2:

3:

4:

5:

Know how to access your RSM

Know where your RUA is located

principal investigator pi responsibilities
Principal Investigator (PI) Responsibilities
  • Overall responsibility
  • Ensure safety
  • Ensure compliance
  • Notify EH&S/Radiation Safety as necessary
  • PI is also listed as a “User” on the RUA and must adhere to all “User” responsibilities as well
slide10

General User Responsibilities

  • Attend training
  • Wear protective clothing and gloves.
  • Use trays and absorbent paper.
  • Store liquids with secondary containment.
  • Label containers, storage and use areas.
  • Do not pipette by mouth.
  • Do not eat, drink, smoke, store food or apply cosmetics in laboratories
  • 8) Use shielding and remote handling tools when necessary.
  • 9) Wear assigned dosimetry when necessary.
  • 10) Always follow lab procedures and the RSM. (Radiation Safety Manual)
  • 11) Continuously survey work areas, hands, and clothing.
  • 12) Immediately clean-up/report spills.
slide11

Four Primary Types of Ionizing Radiation

Radioactivity is the natural property of certain nuclides to spontaneously emit energy in the form of ionizing radiation in an attempt to become more stable.

Alpha – Large mass, rather high energy

Beta – Small mass, energy varies

Gamma (X-ray) – no mass, energy varies

nNeutron – mass≈ proton, energy varies

slide12

The Language of Radiation – Radiation Units

Millirem (mrem) Millicurie (mCi)

Counts per minute (cpm) Microcurie (uCi)

alara a s l ow a s r easonably a chievable
ALARA – As Low As Reasonably Achievable

External dose

  • Time
  • Distance
  • Shielding
    • Plastic
    • Lead
  • Dry runs
  • Internal dose
    • Inhalation
    • Ingestion
    • Absorption
    • Injection
women of childbearing age
Women of Childbearing Age
  • Contact: Priya Rayadurgam x 2-2494
  • Is confidential
  • Declaration of Pregnancy Form
  • More Information – Regulatory Guide 8.13
slide15

Posting/Labeling

Post All Radioactive Materials Use Areas.

Label refrigerators and Freezers.

Label containers, tubes, racks, pipettes, anything coming in contact with radioactive material.

Clean Areas

audits renewals
Audits/Renewals

Intended to assist

  • Frequency of audits

High use lab twice a year

Low use lab once per year

  • Renewal – Annually – includes required radiation safety refresher training.
ordering receipt
Ordering/Receipt

Use lab protocol for purchase orders

Radioactive material will be delivered to your location

  • EH&S Services Lab – Closed weekends and holidays

(Formally known as the Isotope Lab)

    • UCtr 301B
    • Call 4-6418 or 4-0902

You may pick up or Services Lab will deliver.

slide19

Isotope Inventory Card

Each stock vial of radioactive material received will have an inventory number and barcode assigned to it.

The user should keep a record in mCi’s of aliquots taken from the stock vial.

#3

slide20

List

5 Key concepts you must take away from this seminar and will be held accountable for while you remain an active user listed on an RUA.

1:

2:

3:

4:

5:

Know how to access your RSM

Know where your RUA is located

Complete Isotope Inventory Card

inventory control
Inventory Control
  • Report in units of mCi
  • Quarterly updates

Mailed 1st week of months:

January, April, July, and October

Must sign and return even if you have no inventory

  • Mail Code: 0035, FAX: 858-822-8824
  • Sealed sources
    • Leak testing-Rad Safety will perform every 6 months
slide22

Decay calculated by Services Lab

Last reported amount by lab

All Users listed on the RUA must know where all Radioactive Inventory is at all times.

Security and Control is the Goal.

#4

slide23

List

5 Key concepts you must take away from this seminar and will be held accountable for while you remain an active user listed on an RUA.

1:

2:

3:

4:

5:

Know how to access your RSM

Know where your RUA is located

Complete Isotope Inventory Card

Know where your inventory is at all times

surveys
Surveys
  • Wipes- Required in labs that have H-3 in inventory and/or area with high background
  • Survey Meter

Check meter for proper functioning

Use appropriate probe

  • Frequency for documented surveys

High use = Weekly

Low use = Monthly

>10mCi/exp = Daily (or after each use)

The more you survey the less chance contamination will be missed.

Scintillation Probe

Pancake Probe

slide25

How to Use a Survey Meter

You must use the meter correctly to obtain an accurate measurement.

Need to know the Characteristics of the Isotope you are measuring in order to choose the correct instrument to do your survey.

The instrument has limitations

P-32 = 15%, S-35 = 5%, I-125 = 10%

slide26

Radioactive Materials/Waste

cannot go down the drain

or in the trash

Radioactive Waste

  • Store behind appropriate shielding
    • Collect in appropriate containers
    • Collect rinses from contaminated lab-ware
  • Labeling
    • At start of accumulation label with:
      • “Isotope” & “Caution – radioactive materials”
      • International Trefoil “symbol”
    • RAD waste tag must be complete at time of pick up

Keep outside surface of waste containers free of contamination

Keep waste areas clear of debris

Avoid accumulating large amounts of radioactive waste on site

radioactive waste tag
Radioactive Waste Tag

Waste Generator Bar Code Label

Lab Contact Name/Phone

Building/Room

Isotope and Activity in mCi

Description of other constituents

(Chem. Bio.)

List method of disinfection if

applicable.

Deactivated with 10% bleach

radioactive waste do s and don ts
Radioactive Waste Do’s and Don’ts
  • Isotope – Separate waste stream for each: S-35, P-32, I-125, P-33, H-3/C14
  • Liquid – Solids out of the liquid waste, (Carboy) Secondary containment
  • Solids – Liquids out of the solid waste
  • Gels - Double bag using clear plastic bags.
  • Sharps - Puncture proof container
  • Stock Vials - Double bag
  • Animals - Wrap in bench-cote, double bag, store in freezer
  • LSC Vials – Cardboard crate or double bag
  • No Radioactive trash in regular trashcans.
  • No Radioactive liquid waste down the drain.
  • Minimizenon-radioactive materials in radioactive trash.
  • Only authorized users on RUA can prepare waste for pick-up.
slide29

How can I get waste picked up?

  • Get pickup request form at:
  • http://www.blink.ehs.ucsd.edu/hazwaste/forms/pickup.htm
  • Fax (534-9708), mail (mc 0958), or email to: ([email protected])
  • Pickup times:
    • Main campus – Tues. & Thurs.
    • SIO & Medical Center – Wed.
    • Requests in by 7:00 AM generally same day
slide30

Radioactive Waste

  • Large Scale Decay program
  • Segregation by isotope
  • Safety & Cost efficiency
emergencies
Emergencies
  • Flip Chart – UCSD Emergency Response Guide

Main Campus/SIO:

  • 4-HELP (4-4357) 858-534-4357
  • EH&S Office: 858-534-3660

UCSD Medical Center Hillcrest:

  • 6111 (EH&S: Office 619-543-7575)
  • Preplanning – supplies on-hand
  • Prevention – training, dry runs
  • If you hear an alarm VACATE the building!
spills
Spills

#5

  • Stop Moving – Call for HELP and a Survey Meter
  • Warn others – To stay out of area
  • Isolate the area – Isolate the spill – Locate using SM
  • Minimize exposure – Decontaminate

Clean spill immediately. If require assistance call 534-HELP (534-4357)

slide36

List

5 Key concepts you must take away from this seminar and will be held accountable for while you remain an active user listed on an RUA.

1:

2:

3:

4:

5:

Know how to access your RSM

Know where your RUA is located

Complete Isotope Inventory Card

Know where your inventory is at all times

First thing to do if you spill – STOP Moving

spills continued
Spills continued…
  • Decontaminate personnel first!
  • Contaminated clothing should be removed. Use warm water, be gentle, do not break skin, no scrub brush, do consult with EH&S Radiation Safety
  • Using two people to clean up a spill is preferable.
  • Spill needs to be documented according to UCSD requirements.
slide38

Whole Body

Ring

Dosimetry

<1 mCi/exp. Any Isotope Do Not Need

1 mCi/exp. medium/high energy beta or gamma emitter Will use quarterly dosimetry

10 mCi/exp, Will use monthly ring

Most researchers will not require any type of monitoring.

annual dose limits
Annual Dose Limits
  • 5,000 mrem (whole body)
  • 15,000 mrem (lens of the eye)
  • 50,000 mrem (skin or extremities)
  • minors - 10% of adult limits
  • embryo/fetus - 500 mrem (over gestation period)
  • Typical whole body dose for a researcher at UCSD is 0.00 mrem/year
  • Typical background exposure in San Diego is approximately 160mrem/yr
transfer shipping
Transfer/Shipping
  • Forms are required.
  • http://blink.ucsd.edu/menu/rad

You are transferring the security and control obligations from UCSD to the

recipient.

forms
Forms
  • Radioisotope User Enrollment*
  • All forms are on the web
  • http://blink.ucsd.edu/menu/rad

 *Researchers Using Unsealed Radioisotopes

other training may be required
Other Training (May be Required)
  • Iodination – Iodine Safety Seminar
  • P-32 > 10 mCi/Exp – P-32 Safety Seminar
  • S-35 > 10 mCi/Exp – S-35 Safety Seminar

Arranged as needed with your Health Physicist.

Radiation Producing Machines - Radiation Machine Safety Seminar

New State Mandated Training Coming soon

Stand By for more details

contact eh s
Contact EH&S
  • Releasing equipment
  • Moving laboratories
  • Maintenance on equipment
  • Call 4-3660
slide44

Questions

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