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Veterans Today - Your Radiation Week
https://www.netc.com:443/bb/viewtopic.php?f=23&t=1326
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Author:  ammdb [ Sun Nov 22, 2015 9:43 am ]
Post subject:  Re: Veterans Today - Your Radiation Week

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Author:  KingCobra [ Sun Nov 22, 2015 12:53 pm ]
Post subject:  Re: Veterans Today - Your Radiation Week

I found this posted on the West Lake Landfill Facebook page. The guy said he got this information in an email from the EPA when he questioned them about what each channel was detecting.

Range 2: Ba-140
Range 3: I-131
Range 4: Kr-85
Range 5: Cs-137, Ba-137m & Cs-134
Range 6: Ru-106
Range 7: Y-91
Range 8: K-40
Range 9: Na-24, Mn-56
Range 10: Sr-90

Author:  hey [ Sun Nov 22, 2015 2:03 pm ]
Post subject:  Re: Veterans Today - Your Radiation Week

Thanks for the information, netc

Author:  Bert490 [ Tue Nov 24, 2015 9:30 pm ]
Post subject:  Re: Veterans Today - Your Radiation Week

I believe it's ranges 3 and 5 that are the ones to watch the most. But translating a gamma range graph (which is a coarse spectrum) into an isotope is not so straight-forward. Some isotopes listed in the West Lake posting have several energy ranges, with only the primary range shown here. For example, if range 3 and 5 both show a spike, it does not necessarily mean both I-131 and Cs-137 are present, as each of these can show a spike in both ranges. See http://nukeprofessional.blogspot.ca/2013/11/cpm-of-gamma-in-energy-range-600-800kev.html, where the EPA energy ranges are described along with some isotopes that emit in these ranges.

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