Discussion

  • RE: Fluke RaySafe 452

    I almost bought a unit a few weeks ago, but with the annual cost to calibrate it ($300-$500 per year depending on which service plan you're on) changed my mind.  I would reach out to your Landauer rep for those promotional discounts.  FYI, my quote was ...

  • Fluke RaySafe 452

    Is anyone using the Fluke RaySafe 452?  I'm waiting to see if they have a discount promotion as they enter the end of their next fiscal quarter. ------------------------------ Courtney Kerr Eastern Virginia Medical School Norfolk, Virginia 757.446.5798 ...

  • The University of New Hampshire, Office of Environmental Health and Safety, is recruiting for a Radiation and Laser Safety Officer.  The job announcement is posted on the University System of New Hampshire (USNH) employment webpage: https://jobs.usnh.edu/. ...

  • Penn State is searching for a Laser Safety Officer to join our EHS team. More information on the position is at the end of this message if you or anyone you know are on the market. -Aaron Are you looking for an opportunity to practice your laser ...

  • RE: Isotope use in vivo

    Courtney, William, Thank you.  Very helpful information for us to consider.  Our lab is attempting other methods first, without use of isotopes, and I remain hopeful this isotope use will become unnecessary but good for me to get a head start on planning.  ...

  • RE: Isotope use in vivo

    David, In short, yes. With research animals and 3H and 14C, I work with the researcher to help design the project to ensure that we are disposing of them at or below the exempt level 0.05 uCi/gram. The reference for this is 10 CFR 20.2005 Disposal ...

  • RE: Isotope use in vivo

    I would think both H-3 and C-14 would be candidates for incineration, especially when used to label fatty acids. John is correct, you would likely need to determine specific activity, but that would be pretty easy. Another consideration is the time between ...

  • RE: Isotope use in vivo

    Scott and John, thank you both.  The lab notified EHS and our animal care group early so we have some time to plan.  I will reach out to UCSD as well to try and tap into some local knowledge.    Have a safe and happy 4th! ------------------------------ ...

  • RE: Isotope use in vivo

    Hi David. Our last two in vivo projects involved short-lived isotopes and small animals. Luckily we could let the radioactivity decay and simply survey for residual. Remains were kept in a dedicated freezer until we could review them. After clearing ...

  • RE: Isotope use in vivo

    Good question David - You have to be careful with this one because of the long half life and understanding the rules of animals contaminated with radioactive material. Here in Oregon we have to package them after euthanasia in a drum with very specific ...

  • Isotope use in vivo

    Hi All,  Does anyone have experience with use of isotopes in vivo?  This is approved on our RML but in my decade plus at LJI we have never actually performed this type of research.  I recently have a lab that has mentioned wanting to possibly insert fatty ...

  • RE: RAM Inventory

    They are irradiated and activated and are licensed material. Ruth Horowitz HAZMAT/Lab/ Radiation Safety Workman 255 New Mexico Tech Office of Research 575-835-5842 Good Safety Practices Go Hand in Hand With Good Science ------Original ...

  • RE: RAM Inventory

    I'm curious about whether or not irradiated samples have also been somewhat activated. If so, then you probably have new or more radio-isotopes. If not, then the samples are probably not regulated unless you have a considerable weight of source material. ...

  • RE: RAM Inventory

    Ruth, Sometimes we will define a mixed isotope sample from irradiation by the most dominant contributor to dose for inventory tracking purposes, but then we work with our waste contractor at disposal to find the most accurate means of handling the material ...

  • RAM Inventory

    Good Morning All, I'm trying to figure out how to inventory the radioactive materials from our geochronology lab. We receive geologic samples for dating from various places. The samples are sent out to be irradiated. The material is shipped back to us ...

  • Feel free to contact me to discuss Lutathera.  We've supported around 70 Lu-177 cases since Sept 2018.   ------------------------------ Jeffrey Rasmituth Emory University Atlanta GA jrasmit@emory.edu 404-807-6001 ------------------------------

  • ​​Here at the University of Kentucky we have been tasked with prepping these patient rooms for radiation protection/ contamination control for the given therapy- We have been prepping these rooms much like a I-131 room but on a much lesser scale. I wanted ...

  • ​Greetings - For those that can meet right now, here is the COP link for the meeting or you can call in at the number below. https://iu.zoom.us/j/740696323 The call in info is: +1 669 900 6833 +1 646 558 8656 Meeting ID: 740 696 323 Thanks! ...

  • RE: Wistar Rat Phantom

    Good afternoon! Erich; thanks, but you need to come down to my squeaky level! John; thank you, and I don't have any quipping remarks for you ;) FYI, Charles River just provided me with Wistar rat dimensions. For a full grown adult male: The average ...

  • RE: Wistar Rat Phantom

    Hi Courtney, If you'd like I could post your question to the AMRSO (Academic and Medical Radiation Safety Officers) listserv and report their response. From EVMS web pages it looks like you'd qualify for access if you wanted to try signing up. Like ...

  • RE: Wistar Rat Phantom

    Sorry, Courtney. I have people phantoms, but none for mice or rats. ------------------------------ Erich Fruchtnicht Senior Health Physicist & Assistant RSO Texas A&M University College Station TX 979-458-0365 ------------------------------

  • RE: Wistar Rat Phantom

    Anyone? ------------------------------ Courtney Kerr Eastern Virginia Medical School Norfolk, Virginia 757.446.5798 ------------------------------

  • Wistar Rat Phantom

    Greetings! Does anyone have a phantom for a full grown male Wistar rat? I already have one for a C57 Black mouse, but these rats are BIG compared to the mouse. www.cirsinc.com  is our local phantom company, and they need a starting point to work ...

  • I have a training pdf at the following link: https://www.lsuhsc.edu/admin/pfm/ehs/docs/laser.pdf J Davis III ------Original Message------ Hi Joy, I'm happy to share the laser training PowerPoint I use. I don't make a distinction ...

  • Hi Joy, I'm happy to share the laser training PowerPoint I use. I don't make a distinction between undergrad and grad for training purposes so it may be a little more than you're wanting, but it could be a place to start. If you send me an email to ...

  • laser safety training

    Hi All, I am looking for some laser safety training for undergrad students doing research. Does anyone have training that they would be willing to share? Or point me in the direction of some training that can be purchased? Thanks, ------------------------------ ...

  • Hi Steve, We've been using these swipes for years from RPI. https://www.rpicorp.com/products/radiation-safety/contamination-control/wipe-test-smears-w-record-folders-velour-500-cs.html ------------------------------ Cathy St Louis EHS specialist Nova ...

  • Steve, We use 10 Kimwipes folded in half, stapled, numbered, and the cut almost to the fold (as pictured in the attached) for almost all our surveys. To use them, we tear them off at the staple resulting in a small "flip book" of 20 swipes that we thumb ...

  • Hi Steve, We've used Whatman #1 or equivalent filter paper disks forever(?). Fisher brand is equivalent (for our purposes) and sells at a lower price. We generally don't wet them, and primarily use them in H-3 or C-14 labs. They fit readily into ...

  • I'm trying to find a new source for 1" polystyrene squares for LSC swipes (see attached photo).  Many years ago we purchased a lot of them from Acme Distributors in Kingston, TN, but Acme is apparently now gone.  Do you know where I can find something ...

  • Thanks, I'll reach out to them. Ruth Horowitz HAZMAT/Radiation Safety Officer New Mexico Tech Workman 255 575-835-5842 ------Original Message------ Either of these might be interested as well. Health Physics Historical ...

  • Either of these might be interested as well. Health Physics Historical Instrumentation Museum https://www.orau.org/health-physics/museum.html It used to be in hallways of the building where ORAU health physics classes were ...

  • Yes, I've been traying to reach the curator for the K-37 they have there. Thanks. Ruth Horowitz HAZMAT/Radiation Safety Officer New Mexico Tech Workman 255 575-835-5842 ------Original Message------ NATIONAL AIR ...

  • NATIONAL AIR AND SPACE MUSEUM Independence Ave at 6th St, SW Washington, DC 20560 202-633-2214 Today's Hours: 10 am 5:30 pm ------Original Message------ I found several K-21 and K-37 WW-II era cameras in my radioactive materials Conex. ...

  • I found several K-21 and K-37 WW-II era cameras in my radioactive materials Conex. Does anyone know about these cameras?I'm thinking they might have some radioactive alloys in them. Has anyone ever donated a radioactive piece of equipment to a museum? ...

  • Welcome Ruth. I've developed a preference for ORAU courses. NTA did a good job, but ORAU tried to cram far more stuff into my brain than the couple other vendors I've experienced. Regarding license exempt sources, look closely at your license and ...

  • Hi I'm Ruth Horowitz from New Mexico Tech aka The New Mexico Institute of Mining and Technology. My designated titles are:  Radiation Safety Officer HAZMAT Safety Officer Laboratory Safety and Chemical Hygiene Officer I pretty much handle all safety at ...

  • Thank you! Just what I've been waiting for. -Courtney ------------------------------ Courtney Kerr Eastern Virginia Medical School Norfolk, Virginia 757.446.5798 ------------------------------

  • The link below will help researchers that are on the fence regarding the transition from gamma to x-ray.  Plenty of data from their peers.   https://www.nti.org/media/documents/Mt._Sinai_Final_Report.pdf ------------------------------ Jeffrey Rasmituth ...

  • Hello everyone,  The call in number for the conference call happening now (sorry for the short notice) is (669) 900 6833 the meetine  ID is 740 696 323. Thanks,Chris ------------------------------ Christopher Mize Radiation Safety Officer Rice University ...

  • We've dealt with something similar. One of our advanced manufacturing faculty built his own Class IV CO2 cutter from open source plans called the LaserSaur. I second John's concerns about the fume management. Some of the laser generated air contaminants ...

  • Lack of a company name associated with the unit makes me wonder about quality and adequacy of safety systems, and Laser quality. It sounds like you're resolving what you can. Learn what you can about beam alignment, then establish appropriate controls. ...

  • Greetings all, I have a student group that purchased a laser engraver/cutter online. It is lacking complete documentation and the instructions are not very clear. There is not a company name associated with the unit that I have been able to find. The ...

  • RE: Laser Question?

    At least some universities include Laser safety in radiation safety duties, so feel free to ask. Also, there is an Academic and Medical Laser Safety Officer (AMLSO) listserv where some hang out. Full Signature John Jones Radiation ...

  • RE: Laser Question?

    Yes! Ask away! Erich H. Fruchtnicht, MS, CHMM | Assistant RSO and Senior Health Physicist Environmental Health and Safety | Texas A&M University 4472 TAMU | College Station, TX 77843-4472 ph: 979.458.0365 | fax: 979.862.7804 ...

  • Laser Question?

    Greetings, I have a question regarding lasers and laser cutters. Is this the correct area to ask this question? Feel free to contact off-line. I appreciate any assistance, ------------------------------ Margaret Smallbrock Campus Environmental Health ...

  • Thank you! ------------------------------ Jeffrey Rasmituth Emory University Atlanta GA ------------------------------

  • Hi Jeffrey, Your Rad Safety COP membership setting must be on daily digest. Log in to your account, browse to your Rad Safety COP membership, click on "Settings" next to the COP name and choose "Real Time" from the drop down. You will then receive ...

  • I would have joined into the call, but I didn't receive (via email) this message until 13 hours after it was posted @ 1AM.  Is there anyway to change the timing for alerts/messages within the communities you're a part of? ------------------------------ ...

  • Hello everyone! I know this is short notice, but as a reminder, we are holding a community meeting at 12pm EST today 1/15/5019. The zoom meeting link is  https://iu.zoom.us/j/740696323 The phone number to call in is: +1 669 900 6833 or +1 646 558 ...