I find the concept intriguing, but not sure how useful it would be for most field applications. If, for example, you had a radionuclide mix that varied, it would be handy. Particularly if you are operating with low-level airborne activity. For us, we determine either a weighted average energy (and instrument efficiency) and go with that and then either use a conservative DAC or a weighted average DAC value to determine CAM alarm set-points and air & lapel sample results.
My opinion is that it would be more useful in a laboratory environment. Being able to come up with a decent take on the entire radionuclide mix (not just gamma & alpha) in-house would be very nice. As a plant that is rolling into deconstruction, we will be getting into systems & places rarely accessed in the past. Knowing your complete radionuclide mix is key to preventing a bad day. [OPPD logo] David Brehm Sr. Radiological Engineer Radiation Protection - Fort Calhoun Station Omaha Public Power District FC-3-1 9610 Power Lane, Blair, NE 68008 Office: 402.533.6045 Cellular: 402.237.9840 dmbr...@oppd.com<mailto:dmbr...@oppd.com> From: Powernet <powernet-boun...@hpspowernet.org> On Behalf Of Voss, Tom via Powernet Sent: Monday, July 15, 2019 10:45 AM To: powernet@hpspowernet.org Cc: Voss, Tom <tv...@lanl.gov> Subject: [Powernet] Is there a need for a portable beta spectrometer and/or a real time beta CAM with spec capability ? READ THIS FIRST! This is NOT an OPPD email. Be very cautious of any links or attachments unless you recognize this sender - powernet-boun...@hpspowernet.org<mailto:powernet-boun...@hpspowernet.org> and are expecting this email. Please click the "Report it" button if you think this email is malicious. ________________________________ I have been communicating with some experts in radiation instruments and there is the possibility we could have beta spec as a hand held device, laboratory counter, or a beta CAM. Is there interest in pursuing this idea ? I will also bring up this topic at the next meeting of the Instrumentation Section of the HPS. Tom Voss
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