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Re: Po&Pb vs. Ra&Rn activity in Water
I believe that the problem is that the decay products
have not "built up" in the samples. I would suggest
looking up the term "secular equilbrium" in a standard
health physics or radiation safety text, such as
Cember "Introduction to Health Physics."
A similar problem was noted on page 6 (page 8 of the
13 pdf pages) at
http://geopubs.wr.usgs.gov/open-file/of00-403/of00-403n.pdf
--- "Dr. Khalid Aleissa" <kaleissa@kacst.edu.sa>
wrote:
> It came to my hand a paper that contains data of
> well water samples
> analyzed for Ra-226 & 228, Rn-222, Po-210 and Pb-210
> radioisotopes and I
> found that Ra and Rn isotopes have much higher
> values than Pb and Po
> isotopes. Is there any scientific explanation for
> that?
>
> Thanks
> --
> Khalid Aleissa
> e-mail: kaleissa@kacst.edu.sa
>
>
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=====
+++++++++++++++++++
"Everyone is ignorant, only on different subjects."
Will Rogers
-- John
John Jacobus, MS
Certified Health Physicist
e-mail: crispy_bird@yahoo.com
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