Presentation on theme: "Radiation Safety Training Annual Refresher Training Washington State University Radiation Safety Office."— Presentation transcript:
Radiation Safety Training Annual Refresher Training Washington State University Radiation Safety Office
Why have refresher training? The annual refresher training is designed to reinforce important safety information, provide any new information and to cover areas that have presented problems in laboratories over the past year.
In each laboratory that is authorized for radioactive materials use, you will find this form (RHF-3) posted. This form gives the contact information for the Washington state Department of Health. It also list some of your and some of the employer's responsibilities.
Good Laboratory Practices Remember Time, Distance, Shielding Wear Protective Clothing: gloves, lab coat, long pants, full toed shoes Designate areas for RAM work Cover work areas with absorbent paper, absorbent side up Use a hood if possible Avoid skin contact with contaminated gloves Survey: your gloves, hands, coat, shoes, and your work area Always wash your hands (even when wearing gloves) after the experiment, as well as before leaving the work area, picking up the phone, etc.
CONTROLLING EXTERNAL HAZARD TIME: Radiation dose is proportional to the duration of the exposure. DISTANCE: Radiation dose is proportional to 1/(Distance) 2. SHIELDING: Radiation dose is determined by the type and thickness of shielding materials used. Correct selection of Shielding Materials are a function of type and energy of radiation.
Protective Clothing Can be a very effective means of preventing skin, eyes, & clothing from becoming contaminated Always wear Gloves (may want double layer) Always wear your Lab Coat Eyewear to prevent splashes and provide shielding for high energy beta emitters Closed toe footwear and long pants are required It is much easier to remove contaminated clothing than to decontaminate your skin!
Contamination Control The major hazard for most radioactive materials on the WSU campus comes from internalizing the radioactive material. Once the radioactive materials are inside your body, you lose all the protections from TIME, DISTANCE AND SHIELDING. Contamination Control is the key to preventing internalization of radioactive materials.
Contamination Control Watch out where you put your “hot” hands during an experiment Monitor yourself and your work area frequently for radioactivity (gloves, hands, feet, etc.) Use most sensitive scale on meter (X0.1 or X1) and have the sound on Have meter out and handy Make sure to wash your hands frequently and after finishing an experiment Don’t bring radioactive material to lunch or to your home! Monitor your work area before and after an experiment
Surveys After each use of radioactive material : Except H-3, the area shall be surveyed using an appropriate survey meter (not required to be documented) Including the use of H-3, all areas of experimental use shall be wipe tested to determine if contamination is present (not required to be documented) Documented surveys (meter and wipe test) must be completed on either a weekly or monthly basis depending upon the isotope and frequency of use.
Survey meter use. Use of Survey Meter review. Check for Calibration Sticker Check battery Check background radiation Check meter response to a known radiation source. Record the check source results and background readings in the meter notebook.
Radiation Safety Instrumentation. Before an instrument is used for a radiation safety survey. It must be determined that the instrument is functioning properly and that it is calibrated. This includes both radiation survey meters and LSCs. By using the quality assurance notebooks associated with the instrument. You can determine if the instrument is functioning properly and calibrated.
Survey meter Quality Assurance Notebook. Be sure the cover page of your note book is filled in properly. Every survey meter should have a “Survey Meter Quality Assurance Notebook”. Fill in meter manufacturer and serial number. Ludlum Fill in probe model number and serial number. Fill in Meter storage location. Fulmer 123 Fill in Authorized User or Equipment Coordinator’s name and contact phone number and the same for an alternate contact. Arthur Dent Ford Prefect
Survey meter Quality Assurance Notebook. This is the Response Check Source page in the notebook. Place the meter probe over the check source to get the check source reading. Record this reading on the next page of the notebook.
Survey meter Quality Assurance Notebook. Be sure the information has been filled in on this page. Meter and serial number. Probe and serial number. Ludlum The Expected response to check source, should have been filled in by the Radiation Safety Office. 450 Record the date and your name. 1/1/11 Dr. Who Verify the calibration status of the meter. Record the background reading and the response check reading The meter is now ready to be used for the radiation safety survey.
LSC Quality Assurance notebook. Each LSC will have a Quality Assurance Notebook. Be sure to fill in the cover of the notebook. Supervisory Authorized user or equipment coordinator. Plus an alternate and their contact information.
LSC Quality Assurance notebook. Be sure the information at the top of the page is filled in. P/E Fill in the date and your name. 1/1/11 Dr. Who Check the calibration status of the LSC. This information is in the back of the notebook. The LSC must have been calibrated within the past 12 months. Check to see when the last SNC or IPA was run. This is a self check of the LSC. It is done by counting the unquenched standards that came with the LSC. The printout should be in the back of the notebook. It must have been done within the past 7 days. 12/27/10 Enter the number of the program you are using to count your swipes. 14 You are now ready to start counting your swipes. This is the data page inside the notebook.
302 2 Sink3 Draw a map of your lab. Swipe areas where radioactive materials were used and areas that may have become contaminated. Number the swipe spot on your map Hood6 4locker4 5Door knob0 6Floor2 Record the date and time of the survey. 6/10/09 11:35 Survey all locations and areas with the potential to become radioactively contaminated, including hands and shoes. Also any areas where your meter survey showed contamination. Record these locations on your map. Run the swipes in your LSC and record the results. Record your background counts. Record the swipe number. Record swipe location. Record swipe counts. Record all the swipe results. Fill in location. Building and room number. Dodgen210 This lab survey form is available at radiation survey form.pdf radiation survey form.pdf Record your meter survey results. All meter readings are at background levels. Ludlum 3 Record meter used. Record meter serial number Record meter background radiation reading. 50 Record LSC serial number
WAC Security and control of radioactive material and radiation machines. Licensed radioactive materials and registered radiation machines shall be secured from, or controlled in such a manner so as to prevent, unauthorized access or removal from the place of storage. Licensed radioactive materials in an unrestricted area and not in storage shall be tended under the constant surveillance and immediate control of the licensee. The authorized user must Maintain security of radioactive materials or radiation machines under his or her control or possession.
Security and control Radioactive materials must be secured. Either by locking the lab door when the lab is unattended or by placing the radioactive materials in a lock box or in a locking freezer or refrigerator. DO NOT LEAVE RADIOACTIVE MATERIALS UNATTENDED.
Radioactive materials inventory control. WAC Records. (1) Each licensee or registrant shall maintain records relating to the receipt, use, storage, transfer, or disposal of radiation sources, In other words, you must maintain an accurate and up to date inventory of your radioactive materials.
Authorized User:_______________Location:__________________________ Stock Vial ID:__________________Vendor:___________________________ Radioisotope_______________Chemical Form______________________ Activity___________________Activity/Reference Date_______________ Date Rec’d/Initials__________Storage Requirement________________ Date UsedActivity Withdrawn (mCi) Activity Remaining (mCi) User’s Initials CommentsWaste Pick-up Date Radioactive Material Use Log Dr Who 1-56 P mCi 11/18/10 /rm To calculate for waste disposal: Volume used x initial specific activity x decay fraction. Fulmer 123 Perkin Elmer ATP 11/21/10 None 11/25/ RM all placed in waste 12/18/10 You must keep an accurate inventory of your radioactive materials. A use log such as this can help you keep track of your inventory. Enter Authorized user and location.Enter stock vial ID, if you use one. Otherwise use the activity date. Enter vendor name.Enter Isotope. Enter chemical form. Enter the activity of the vial. Enter the activity date.Enter the date received and initials of the person receiving the vial.Enter any special storage requirements. Each time someone extracts from the vial. They should make an entry on the form. Enter the date the extraction was done.Enter the activity removed from the vial. Enter the activity remaining in the vial. The original amount minus the amount removed. Enter your initials. Enter any comments you would like. After the waste for this entry is picked up. Enter the waste pick up date. This should be done each time a withdrawal is made from the vial. Until the vial is depleted. 12/3/ SP All placed in waste 12/18/10 12/20/ RM All placed in waste 1/15/11
Inventory control Waste A large part of inventory control is proper waste tracking and reporting. The use log is very important for proper waste reporting.
Waste Program You must fill out the waste receipt form completely and correctly, before your waste will be picked up. Be sure to report the isotope and activity from your use log.
Dr. Who 6/9/09 ChemistryFulmer 123 P Water 95% NaCl 5% X Fill in the Authorized users name.Fill in the date. Fill in your department.Fill in your location. Circle your waste type. Definitions of the abbreviations can be found on the back of the waste form. Enter the nuclide that is in the waste.Enter the amount of activity that is in the wasteFor liquid waste, enter the pH of the liquid. Enter the chemical makeup, with percentages, of the waste. The percentages should equal 100%. Mark the size of your waste container. Filling out the waste receipt form.
The Back of the waste receipt form.
Waste pickup. When you are ready to have your waste picked up, waste pick up form filled out and the outside of container checked for contamination, fill out a waste pick up request at our web site.
More resources. More information is available at our web site. And please feel free to review any of the training any time.
Test Time! Follow this link to the test. https://myresearch.wsu.edu https://myresearch.wsu.edu Use your WSU user name and password to sign in. Click on the training tab. Then click on the available training tab Find the radiation refresher course, in the OR section, click on it and take the test.