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Re: Bi207

To: radsafe@romulus.ehs.uiuc.edu
Subject: Re: Bi207
From: Ninni Jacob <njacob@gsosun1.gso.uri.edu>
Date: Tue, 28 Mar 1995 10:18:27 -0500 (EST)
Cc: Multiple recipients of list <radsafe@romulus.ehs.uiuc.edu>
In-Reply-To: <IjS294S00iUvQ1IqgE@andrew.cmu.edu>

My answer is 40.5mCi.

I used the 1992 Edition of the RHH.
The gamma constant for Bi-207 is listed as: 36xE-04 mSv/hr/MBq at 1 meter.

This works out to 1.332 R/hr per Ci at 1 meter
               = 14.8 R/hr per Ci at 30 cms.

The meter reading was 0.6 R/hr at 30 cms.

Therfore, activity = 0.6/14.8  * 1Ci = 0.0405 Ci = 40.5 mCi

Ninni Jacob
Radiation Safety Officer
University of Rhode Island

References:
- Bi207
  - From: "Denis J. Rinkacs Jr." <dr4i+@andrew.cmu.edu>

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