RE: Two Questions

["Grant Wilton" <gwilton@chem.swri.edu>]

Mr. Mercado,

Sr-90/Y-90 counting efficiencies normally are around 45%.  As for C-14 I've
only counted it via LSC.

Grant Wilton
Senior Research Scientist
Southwest Research Institute
gwilton@chem.swri.edu

-----Original Message-----
From: radsafe@romulus.ehs.uiuc.edu
[mailto:radsafe@romulus.ehs.uiuc.edu]On Behalf Of Mercado, Don
Sent: Friday, April 07, 2000 2:40 PM
To: Multiple recipients of list
Subject: Two Questions


Holy smokes. How about some health physics for a change.

#1.

I'm currently reviewing the calibration program for our proportional
counters. The plateaus are beautiful. We use Sr/Y-90 and C-14 to calculate
efficiencies. What would you expect the counting efficiencies to be?

#2

What long-lived transuranics are produced by fission and fusion weapons?



Donald P. Mercado
Radiation Safety Officer
Lockheed Martin Space Systems, Missiles & Space - Sunnyvale Operations
O/EK-20, B/101
1111 Lockheed Martin Way
Sunnyvale, CA 94089
Ph. (408) 742-0759
Fax (408) 742-0611
Email: Don.mercado@lmco.com

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