Linda,
Duke Energy uses a factor (multiplier) of 1.3. This is based on the
Lutzelschwab paper for air filters and in the absence of better information we
have applied the same factor to smears. Today or tomorrow are shipping to a
vendor some smears and air filters for which we have counts. Comparison of
their results via destructive analysis versus our counts will give us a much
more firm basis for our smear and filter self absorption factors.
Bob Sorber
From: [email protected] [mailto:[email protected]] On Behalf Of
Sewell, Linda
Sent: Sunday, October 05, 2014 7:08 PM
To: '[email protected]'
Subject: Powernet: Alpha Contamination Smear Analysis
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Hi All,
Diablo Canyon has some questions on alpha smear analysis.
1) Do you apply a self-absorption factor to smears analyzed for alpha activity.
2) If yes, what is your self-absorption factor.
Please provide a contact.
Thanks,
Linda
Linda M. Sewell, CHP
Principal Health Physicist
Pacific Gas & Electric Company
Diablo Canyon Power Plant
MS 119/1/117
PO Box 56
Avila Beach, CA 93424
P: 805.545.4315 | F: 805.545.2618| [email protected]<mailto:[email protected]>
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