[ RadSafe ] UC Berkeley Nuclear Engineering Air MonitoringStation | The Nuclear Engineering Depa

[Jim Hardeman]

Mike --
 
Their "B" setup looks pretty good -- HEPA filter, which apparently slips over the end of a 50% HpGe detector. Good collection efficiency, good counting efficiency, and a LOT more air flow than a lo-vol sampler with a charcoal canister. Looking at the published "pictures" of their gamma spectra, I'd say they've got a pretty good setup there.
 
Jim

>>> "McNaughton, Michael" <mcnaught at lanl.gov> 3/27/2011 09:20 >>>
I notice that they are using filters and detecting I-131. I would be very interested n discussing the effectiveness of filters for I-131. I know this is not the standard and recommended method. However, it is difficult to pull very large volumes of air through activated charcoal, and here at Los Alamos we are not at present equipped to do high-vol sampling with activated charcoal.

Mike McNaughton
LANL
mcnaught at lanl.gov 

-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu [mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Roger Helbig
Sent: Sunday, March 27, 2011 2:15 AM
To: 'The International Radiation Protection (Health Physics) Mailing List'
Subject: [ RadSafe ] UC Berkeley Nuclear Engineering Air Monitoring Station | The Nuclear Engineering Department At UC Berkeley

http://www.nuc.berkeley.edu/UCBAirSampling 

A good site for air sampling that is going on -

Roger

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