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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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Environment, Health & Safety

Radiation Safety Seminar

2010

Robert Carrara

David Skydel

2010


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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.


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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:



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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


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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


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General Information

Human Protocols

Demographic Information

Standard Requirements

Laboratory Locations

Radiation Safety Officer Signature

Menu of Isotopes

#2

Authorized Users

General Precautions

Animal Protocols


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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


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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


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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.


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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


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The Language of Radiation – Radiation Units

Millirem (mrem) Millicurie (mCi)

Counts per minute (cpm) Microcurie (uCi)


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ALARA – As Low As Reasonably Achievable

External dose

  • Time

  • Distance

  • Shielding

    • Plastic

    • Lead

  • Dry runs

  • Internal dose

    • Inhalation

    • Ingestion

    • Absorption

    • Injection


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Women of Childbearing Age

  • Contact: Priya Rayadurgam x 2-2494

  • Is confidential

  • Declaration of Pregnancy Form

  • More Information – Regulatory Guide 8.13


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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


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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.


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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.



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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


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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


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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


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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


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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


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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


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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%


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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


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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


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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.


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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


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Radioactive Waste

  • Large Scale Decay program

  • Segregation by isotope

  • Safety & Cost efficiency



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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!



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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)


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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


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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.


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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.


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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


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Transfer/Shipping

  • Forms are required.

  • http://blink.ucsd.edu/menu/rad

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

    recipient.


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Forms

  • Radioisotope User Enrollment*

  • All forms are on the web

  • http://blink.ucsd.edu/menu/rad

 *Researchers Using Unsealed Radioisotopes


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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


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Contact EH&S

  • Releasing equipment

  • Moving laboratories

  • Maintenance on equipment

  • Call 4-3660


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Questions

  • David Skydel – [email protected], x2-5526

  • Robert Carrara – [email protected], x2-2878

  • EH&S Main Desk - 534-3660

  • RSO (Radiation Safety Officer) Corey Singleton

  • [email protected], x2-4045

  • Contact your HP/RAP directly


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