Radiation Safety Practices

  • I just wanted to say Thank You to everyone who messaged me, both publicly and privately! I really appreciate your help!  Have a wonderful week and stay safe :) ------------------------------ Hope Zavalin Environmental Health & Safety Specialist Texas ...

  • Bionomics took a cobalt source from us several years ago, so I'm thirding that recommendation. Mary

  • Hope, Bionomics might be able to help with this Larinde, Olusegun MPH, CSP Interim Radiation Safety Officer Environmental and Health Safety Office Radiation Safety Section University of Illinois at Chicago ...

  • Good morning Hope, https://www.bionomics-inc.com/ Dan S. ------------------------------ Daniel Szatkowski Associate Radiation Safety Officer Washington University in St. Louis Saint Louis MO 314-362-3479 ------------------------------

  • Hello all!  I wanted to reach out and see if anyone can recommend some good vendors to help us dispose of an old Cobalt source we have on campus.  We had been trying to reach out to two different ones but with the Pandemic their response has been slow. ...

  • RE: I131 in LSC

    Consider getting an I-131 calibration standard for the LSC, so efficiency can occasionally be verified. Perkin Elmer as well as Eckert and Ziegler may have viable options. They may need to know how assay samples will be prepared in order to offer a ...

  • RE: I131 in LSC

    From the attached reference, I-131 has a 70% counting efficiency.  These efficiencies are from Beckman LSC. ------------------------------ Tom Kellogg Radiation Safety Officer University of Vermont Burlington VT 802-656-3283 ------------------------ ...

  • RE: I131 in LSC

    A LSC (or more specifically LSC cocktail) is designed to detect beta radiation, and I-131 is primarily a gamma emitter. That is normally why people use it anyway. I-131 does emit a beta (191 keV) almost 90% of the time, which should be detected in the ...

  • RE: I131 in LSC

    I'd use the wide open settings and with that instrument, you should be able to get a spectrum which you can work with. When I had a guy use I-125 in a beta counter, it worked but the efficiency was funky. Dr. Gary L. Yarrow, Director ...

  • I131 in LSC

    We have a researcher who will be working with I131, using a Perkin Elmer TriCarb 4910TR LSC for her measurements.  Does anyone know where I can find, or does anyone have, the parameters we would need to use on the instrument?  We've only ever used it ...

  • Steve, Attached is what our Environmental Affairs group developed for a radioactive waste pickup checklist. It is not listed on their form but I would recommend adding a sentence on how you segregate by half life.  For dry waste we used cardboard boxes ...

  • The "Hazardous Materials & Waste" group within our EH&S Department drafted a generic "Procedure Document" to provide guidance to laboratory personnel on dealing with 'Unwanted Laboratory Material' in their respective labs (think "Subpart K").  Sections ...

  • Hello All, Auburn University has an opening for a Radiation Safety Specialist II/III. A complete position announcement, including minimum and preferred qualifications and salary information, may be viewed at Auburn University Human Resources' Job Portal: ...

  • Hi all, San Diego State University has an opening for a Radiation Safety Officer.  https://careers.sdsu.edu/sd/en-us/job/494946/radiation-safety-officer The initial review of applications has been extended to March 13, 2020. Let me know if you have ...

  • RE: CSHEMA Academy

    Thank you to both Dr. Emery and Jonathan! These are points we'll factor into our learning plan. Erich H. Fruchtnicht, MS, CHMM | Assistant RSO and Senior Health Physicist Environmental Health and Safety | Texas A&M University ...

  • This is a spin off of the vendor comparison. I'm hoping for opinions/experiences regarding Mirion's flex rings. Yesterday I ordered a few for a brief upcoming project, primarily to see if they fit our folks and will stay together. ...

  • Thanks Larry, I forgot to mention assembly. We transfer attachment straps between old and new body dosimetry. Straps loop through a slot on body dosimetry blister packs and snap to themselves. Spring clips on the straps ...

  • I have used both, currently using Mirion. Landauer offers a faster and efficient turn around than Mirion but more expensive. Another issue that is coming from Mirion (from April exchange) is the "new look of badges". With this, Mirion now demands its ...

  • I have only used Landauer. Ronnie P. Souza, RSO Director / Radiation Safety Officer / Biological Safety Officer Department of Environmental Health and Safety 11 Hills Beach Road University of New England Biddeford, Maine 04005-9599 ...

  • No experience with Landauer. I was somewhat impressed when Mirion upgraded their basic dosimetry from TLD to OSL recently. I would've been far more impressed (and far less stressed) if a warning would've been distributed ...

  • Hello CSHEMA colleagues, I'm in the process of switching from Landauer dosimeters to Mirion.  Anyone have experiences with both companies?  If not, how was your experience with Mirion? Thanks, Johnny ------------------------------ Johnny Teasley, M.S. ...

  • RE: CSHEMA Academy

    ​Here's what I would suggest …. we can chat about this when we  connect -  Bob Comments Regarding CSHEMA CoP Proposal for Radiation Safety Training Modules  Why does your institution even possess sources of radiation?             What ...

  • RE: CSHEMA Academy

    Hi Erich, Thanks for taking the lead on this it is exciting to see many of these developing. As I read the draft module titles I thought about who might take these. I was wondering who our target audience is/are? It's hard to ...

  • CSHEMA Academy

    Happy Friday everyone! As we're heading into the weekend, I offer some food for thought. You may have heard that CSHEMA is developing an Academy or online learning professional development program. The idea is that each COP can work to create the content ...

  • David -  I would be happy to share my powerpoint that I use for introductory training.  Please email me personally and I'll share it with you via Google drive. Scott ------------------------------ Scott Jaqua Assistant Director of EHS / Radiation Safety ...

  • David, Safety Training Consortium recently released "Fundamentals of Radiation Safety", which was created by RSOs from UCLA, UC Berkeley, Princeton, Wash U, Northwestern, and Emory University. It's a membership-only program in order to gain access ...

  • Can anyone recommend a good online source for radiation safety training?  We have not had active use of isotopes in research labs for years and our training videos (on video cassettes) are dated.  Last fall we hired a new faculty member that is interested ...

  • Our Director of Radiation Safety, Sylvia Revell, is retiring after providing The University of Texas Southwestern Medical Center 22 years of exemplary service. We are very happy for her and now we begin the search for her successor. UT Southwestern is ...

  • Happy Monday everyone, I'm re-sending this message in the hopes of soliciting just a few more responses to the benchmark questions on HVAC and filter media. It should only occupy a couple of minutes of time. Thank you to those of you that have already ...

  • Howdy William, Texas A&M has used EHSA as well for quite some time. The radiation safety team here just purchased the new version EHSA after evaluating BioRaft. While BioRaft is robust, we did not feel it could handle what we would be throwing at ...

  • ​ Good afternoon everyone. We are currently using Environmental Health & Safety Assistant (EHSA), by On Site Systems Inc, as our data base for our Radiation Safety Department. The program works great and we have had it for a number of years. Our university ...

  • RE: Top 5 Questions

    Johnny, Look at your citation data from previous years and asked a question about the most frequently cited item(s).  "What is the frequency of performing contamination surveys?" or "what is the university's action level for decontamination?"  If the ...

  • RE: Top 5 Questions

    Hi Johnny - Here are 5 from my quiz bank: What does ALARA stand for and what 3 things can be done to maintain ALARA? What is the primary characteristic that predicts potential biological damage by ionizing radiation (could make it a 2 part by ...

  • Top 5 Questions

    Hello All, I am currently in the process of updating my annual rad refresher safety training.  I have to create 5 rad safety questions to ask at the end of the training.  What would be your 5 most important rad safety questions to ask? Thanks, Johnny ...

  • Hello All, Auburn University has an opening for Manager, Safety & Health (Radiological Safety Officer). A complete position announcement, including minimum and preferred qualifications and salary information, may be viewed at Auburn University Human ...

  • Do you post the exterior of HVAC systems with radiological fume hood users? [Yes.] If yes: Is this a posting with a yellow "CAUTION" label, or text (i.e. "Please contact HP before..."), or both? ["Caution Rad Material" sticker on the ...

  • Do you post the exterior of HVAC systems with radiological fume hood users? [ Yes .- prefiltration only] Is this a posting with a yellow "CAUTION" label, or text (i.e. "Please contact HP before…"), or both? [ Both, the filter housing is in the lab ...

  • Good morning,   I'm hopeful you have a few moments to devote to the topic of ventilation and filters or filter media. This message has a handful of benchmarking questions related to that subject at the tail of the message.   Currently, our University ...