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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

 ----------
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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