Radiation Use Authorizations

The use of radioactive materials or radiation producing machines (RPMs) at UC Berkeley must occur under an approved Radiation Use Authorization (RUA).

Obtain a New Radiation Use Authorization

An approved RUA is required before purchasing or using any source of ionizing radiation.

To apply for an RUA, complete an RUA Application and a Recharge Authorization Form identifying the funding source. A Radiation Safety Team member will contact you concerning your application and will work with you to gain approval for your project(s).

For each person working on the new RUA(s), they must complete the Steps to Gain Approval to Work with Radiation, depending on the type(s) of RUA(s) you are requesting. LBNL employees will need to obtain affiliate status and a CalNet ID before they can be added to an RUA.

Please email radsafety@berkeley.edu with any questions you may have.

Update an Existing Radiation Use Authorization

Only an RUA Holder or Lab Contact can authorize a modification of an existing Radiation Use Authorization (RUA). Submit a request using the RUA Change Form. To access the form, CalNet authentication is required.

All RUA change requests are reviewed by the Radiation Safety Team before being approved and entered into the Radiation Safety Information System. If you have any questions regarding a specific change you’d like to make to an RUA, send an email to radsafety@berkeley.edu.

Below are the types of changes that can be made and the forms that are needed.

Personnel Changes

Add Users
  1. Users need to have completed initial training or be up-to-date on biennial retraining before being added. Please follow the Steps to Gain Approval to Work with Radiation to complete the required training.

  2. Submit an RUA Change Request Form.

  3. Include a completed Radiation User Information Form within the RUA Change Request.

  4. If a user needs to be assigned dosimetry, include a completed Dosimetry Issuance Request Form within the RUA Change Request.

Remove Users

Experimental Procedures Changes (SOPs)

Complete a Standard Operating Procedure (SOP) and submit it within a RUA Change Request Form.

Radionuclide Limits/ New Radionuclides

If this is part of a new experiment, please also include a Radioactive Materials SOP in the request.

To add, adjust, or remove a limit, or to add or delete a radionuclide, submit an RUA Change Request.

To order materials in RSIS, follow the instructions under "How do I order radioactive materials?"

Recharge Authorization - Update Account Chart String

To update your chartstring, submit a Recharge Authorization Form.

Steps to Gain Approval to Work with Radiation

To get approved to work on an RUA, complete the steps below depending on the type of RUA you will be working on. Upon completion, inform your RUA Holder or Lab Contact and ask that they request you be added to the RUA. If you are unable to access the UC Learning Center using the links below, please submit a help request to EH&S.

INITIAL TRAINING

Radioactive Materials
  1. Complete EHS 401.1 – Radiation Safety Training for Users of Radioactive MaterialsThis course requires the latest version of Google Chrome, Firefox, Safari, or Internet Explorer. Please use Firefox for the best compatibility. 
    Step 2 will not be able to be completed until 24 hours after you complete step 1.
  2. 24 hours after completing EHS 401.1, you may sign up for an EHS 403 Radiation Safety RUA On-Boarding session that fits your schedule. If you are unable to attend a scheduled session before you need to begin work, please email radsafety@berkeley.edu to schedule an ad hoc session. NOTE: Sessions DO NOT always show up in chronological order.
  3. Submit a Radiation User Information Record (and Dosimetry Issuance and Information Form if applicable) to radsafety@berkely.edu, or bring copies to your session.
Radiation Producing Machines
  1. Complete EHS 401.2 – Radiation Safety Training for Users of Radiation Producing MachinesThis course requires the latest version of Google Chrome, Firefox, Safari, or Internet Explorer. Please use Firefox for the best compatibility.
  2. Submit a Radiation User Information Record (and Dosimetry Issuance and Information Form if applicable) to your PI or Lab Contact so they can submit them with an RUA Change Form.
Both Radioactive Materials and Radiation Producing Machines
  1. Complete EHS 401.3 – Radiation Safety Training for Users of Radioactive Materials and Radiation Producing MachinesThis course requires the latest version of Google Chrome, Firefox, Safari, or Internet Explorer. Please use Firefox for the best compatibility.
    Step 2 will not be able to be completed until 24 hours after you complete step 1.
  2. 24 hours after completing EHS 401.3, you may sign up for an EHS 403 Radiation Safety RUA On-Boarding session that fits your schedule. If you are unable to attend a scheduled session before you need to begin work, please email radsafety@berkeley.edu to schedule an ad hoc session. NOTE: Sessions DO NOT always show up in chronological order.
  3. Submit a Radiation User Information Record (and Dosimetry Issuance and Information Form if applicable) to radsafety@berkely.edu, or bring copies to your session. 

Biennial reTRAINING

Researchers who wish to complete their biennial Radiation Safety Retraining must log onto the UC Learning Center and complete the appropriate course based on the type(s) of RUAs you are currently working under:

Materials - EHS 402.1 – Retraining for Radioactive Materials Users  

RPMs - EHS 402.2 – Retraining for Radiation Producing Machines Users

Both - EHS 402.3 – Retraining for Radioactive Materials & Radiation Producing Machines Users

These courses require the latest version of Google Chrome, Firefox, Safari, or Internet Explorer. Please use Firefox for the best compatibility.

Failure to complete biennial retraining in a timely manner will result in removal from your RUA(s). If removed, you cannot resume work until reinstated, after completing retraining.

Accessing an RUA's Standard Operating Procedures (SOPs)

Login to the UC Learning Center and enter your RUA number in the search bar.  This will return a list of the SOPs authorized by your RUA.  RUA personnel will need to review each SOP they plan to use.  After reviewing the SOP, be sure to click on the “complete” button after submitting verification that the SOP has been reviewed to ensure that your SOP review is properly documented in the UC Learning Center. 

Please notify us if any of your SOPs are missing or not up to date.  

We can work with you as needed to limit access to your SOPs if they contain any novel research that you do not wish to appear in unrestricted UC Learning Center searches.

Obtain Dosimetry (Radiation Badge and/or Ring)

Radioactive Materials Users

You will receive your dosimetry during on-boarding. Follow the Steps to Gain Approval to Work with Radiation.

Radiation Producing Machine (RPM) Users

If you are required to wear dosimetry as part of your routine work with a Radiation Producing Machine (RPM), your new dosimetry will be provided to you by Radiation Safety. Complete a Dosimetry Issuance and Information Form and contact Radiation Safety at radsafety@berkeley.edu to schedule an appointment to be issued your dosimetry.

Requesting Dosimetry

If you feel your current or expected radionuclide use may require a dosimetry evaluation for potential radiation exposure, please contact Radiation Safety at (510) 642-3073. If dosimetry is required, you will need to complete a Dosimetry Issuance and Information Form and submit it to the Radiation Safety Team at radsafety@berkeley.edu.

Important “Do’s and Don’ts” With Your Dosimetry

Do’s with Dosimetry
  • DO wear your dosimeter(s) whenever you are working with radiation sources or radiation producing machines.
  • DO wear your whole body badge at chest height on your lab coat and your finger ring on your hand under your gloves and facing the source of radiation. 
  • DO call or email Radiation Safety (642-3073 or radsafety@berkeley.edu) if your dosimeter is lost, contaminated, or is accidentally exposed to radiation.
  • DO only use your UC Berkeley dosimetry at UC Berkeley (If visiting other institutions  they will provide you with dosimetry if needed.)
  • DO exchange your dosimeter promptly when requested
Don’ts with Dosimetry
  • DO NOT get your dosimeter wet or expose it to high heat.
  • DO NOT store your dosimeter(s) around sources of radiation.

Training for Individuals Working Near Radiation Sources (Ancillary Non-user Training)

Staff who work in labs where radioactive materials or RPMs are used but are not users themselves must complete EHS 404 Radiation Safety Awareness Training for Non-Users (EHS 401.1, 401.2, and 401.3 also satisfy this requirement).

This course requires the latest version of Google Chrome, Firefox, Safari, or Internet Explorer. Please use Firefox for the best compatibility.