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Re: scale source



I had a surface tension device in about 1968 that had 2 Po-210 sources,
shortly after receiving it, the manufacturer reported problems with the
sources and replaced them with Ra-226.  Since your source is still active
after 20 years, Ra-226 is a good guess.

 
At 08:23 AM 11/4/99 -0600, you wrote:
>One of our researchers has discovered an old scale in their lab (20
>years) that was manufactured by Fisher that appears to contain some
>type of radioactive source.  They are getting readings on their GM
>survey meter.
>
>Does anyone have any idea what this source might be?
>
>Lori Powell
>USDA/RSS
>5601 Sunnyside Ave
>Beltsville, MD  20705-5510
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Joe Alvarez
Auxier & Associates, Inc.
9821 Cogdill Rd.
Suite 1
Knoxville, TN 37932
Ph: 865-675-3669
FAX: 865-675-3577
email: jalvarez@auxier.com
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The RADSAFE Frequently Asked Questions list, archives and subscription
information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html