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RE: Rule of Thumb for BETA contamination
Shapiro (1990) offers the following (table 2.1):
Dose rate from 100 beta particles per second per cm-2 equals approximately:
56 mrad/hr (C-14); 33 mrad/hr (Ca-45); 11 mrad/hr (P-32); 11 mrad/hr (Sr-90).
Note: Parallel beam (Jaeger, 1968, p. 14).
Tony Sorensen
Varian Oncology Systems
tony.sorensen@os.varian.com
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From: radsafe[SMTP:radsafe@romulus.ehs.uiuc.edu]
Sent: Thursday, October 02, 1997 6:41 AM
To: Multiple recipients of list
Subject: Rule of Thumb for BETA contamination
The rule of thumb conversion for removable contamination has been 1 mrem
gamma = 1 million dpm
assuming Co-60 as the major isotope does anyone have a rule of thumb for
1 mrem BETA ?
I'll welcome any input
Thanks,
M.B.
Mark Bedenbaugh
RNP- Ext. 1287
Beeper - 673-6040
mark.bedenbaugh@cplc.com
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From: "Bedenbaugh, Mark" <mark.bedenbaugh@cplc.com>
To: Multiple recipients of list <radsafe@romulus.ehs.uiuc.edu>
Subject: Rule of Thumb for BETA contamination
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