View unanswered posts | View active topics It is currently Thu Mar 28, 2024 10:36 am



Reply to topic  [ 14 posts ]  Go to page Previous  1, 2
 Veterans Today - Your Radiation Week 
Author Message

Joined: Fri Jan 31, 2014 5:28 pm
Posts: 42
Pictures for previous post.

Attachment:
Denver.jpg
Denver.jpg [ 50.55 KiB | Viewed 27761 times ]


Attachment:
Omaha.jpg
Omaha.jpg [ 49.38 KiB | Viewed 27761 times ]


Sun Nov 22, 2015 9:43 am
Profile
Moderator
User avatar

Joined: Mon Jan 28, 2013 7:40 pm
Posts: 2885
Location: Illinois
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

_________________
MY OUTSIDE RADIATION MONITORING STATION:
South Beloit, Illinois - GMC200 Outside on HEPA air purifier, ground level, facing West.
http://netc.com/chart/view.php?n=1%3AEB5A139C


Sun Nov 22, 2015 12:53 pm
Profile
Site Admin
User avatar

Joined: Mon Jan 28, 2013 6:51 pm
Posts: 741
Location: Arkansas
Thanks for the information, netc


Sun Nov 22, 2015 2:03 pm
Profile

Joined: Fri Jul 03, 2015 7:04 pm
Posts: 164
Location: Toronto Canada
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.

_________________
https://netc.com/chart/view.php?n=1%3A919A925A.5 Toronto, Ontario, Canada SBM-20 indoors


Tue Nov 24, 2015 9:30 pm
Profile
Display posts from previous:  Sort by  
Reply to topic   [ 14 posts ]  Go to page Previous  1, 2

Who is online

Users browsing this forum: No registered users and 79 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group
Designed by STSoftware.