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RE: TFP update article, E Magazine; replies to all
Norm,
Of course, you are assume (10 that all radioactive material ingested comes
from the nuclear power plant, (2) that your analysis definitely shows that
it is Sr-90, or whatever radionuclide it is that you are assaying for and
(3) Sr-90 for bomb testing was uniformly distributed and remained so across
the US. I think we had comments in the past that some environmental assay
techniques require more expertise than others. Of course, there may be the
question of bias in that if you are looking for Sr-90 you may find it, even
if it is not there. (At my place, we work with various radionuclides.
Following a labeling experiment, we thought that the researcher had a
significant uptake of At-211 as we have to decay correct for the time
between the experiment and the counting. After almost of week of crisis
management, the air sampler was recounted, and we determined that the
emission were from a minute amount of I-125 that had also been labeled in
the fume hood. Because we were looking for At-211, we "found" it.)
-- John
John Jacobus, MS
Certified Health Physicist
3050 Traymore Lane
Bowie, MD 20715-2024
E-mail: jenday1@email.msn.com (H)
-----Original Message-----
From: Norman Cohen [mailto:ncohen12@comcast.net]
Sent: Monday, September 16, 2002 7:57 PM
To: radsafe@list.vanderbilt.edu
Subject: Re: TFP update article, E Magazine; replies to all
More answers below ---
Dear Bernard,
My understanding of the TFP is that Strontium-90 is used like a tracer.
Sr90, as you know, has a half-life of about 29 years, and so the amount in
baby teeth should be going down, not evening off and going up. If the baby
got sr90 from the local nuke, the baby alaso ingested all the other
radionuclides emitted by the local nuke.
. . .
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