[ RadSafe ] Mango's Tooth Fairy Sr Radiochemistry

[John Jacobus]

Erik,
Of course explaining your concerns, which would cast
doubt on the TFP, might be hard to explain to the
public.  Nevertheless, I believe the public can
understand the problems with the TFP, excluding the
minorite that are already convinced.  I would include
those who may have had a child with cancer and need a
reason behind the cancer, like a local nuclear power
plant.

--- "Nielsen, Erik" <nielseec at nv.doe.gov> wrote:

> Mango has documented the methods used for his NJ
> Toothfairy project.  It
> can be found at:
> http://unplugsalem.org/radioactive_strontium.htm
> 
> As a radiochemist I have a number of concerns about
> the analytical
> methodology.
> 
> 1. The seperation technique is not elementally
> specific and is not
> generally accepted as accurate.  Specifically there
> is no seperation
> chemistry to remove radium.  This could result in a
> high bias based on
> naturally occurring Ra-226 and Ra-228 codeposited
> with calcium.  New
> Jersey is known to have Ra-226/228 and Ra-224 issues
> in their drinking
> water.  The seperation chemistry is so non specific
> that they purport to
> precipitate yttrium with the calcium and strontium.
> 
> 2. Liquid scintillation efficiencies are affected by
> chemical and color
> quenching.  The method is unclear on quench
> corrrections. The efficiency
> was calculated using standards in a different acid
> composition than the
> samples.
> 
> 3.  Statistical errors made in calculating detection
> limits based on
> backgrounds counting significantly longer than
> sample counting times.
> Unclear if backgrounds are the same acid compostion
> as the samples.
> 
> 4. No yield correction attempted for recovery
> fraction of the stable
> carriers added.
> 
> 5. Nothing other than self referential material
> found on google for
> Radiological and Environmental Measurement Systems
> of Waterloo, Candada.
> It's only customers seem to be anti-nuclear activist
> organizations:
> Military Toxics Project, National Gulf War Resource
> Center and the Tooth
> Fairy Project. 
> 
> 
> 
> Erik C. Nielsen 
> Senior Scientist 
> Remote Sensing Laboratory 
> P.O. Box 98521, M/S RSL-47 
> Las Vegas, NV 89193-8521 
> 
>
http://www.nv.doe.gov/nationalsecurity/homelandsecurity/frmac/default.ht
> m 
> 
> Voice 702-295-8954 
> Fax 702-794-1007 
> Pager 702-794-7222 
> Cell 702-630-2323 
> Text to Pager 702794722 at nv dot doe dot gov (plain
> text please) 
> Text to Cell: 7026302323 at mmode dot com (plain
> text please) 
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+++++++++++++++++++
““Few of their children in the country learn English... The signs in our streets have inscriptions in both languages ... Unless the stream of their importation could be turned they will soon so outnumber us that all the advantages we have will not be able to preserve our language, and even our government will become precarious.”
-- Benjamin Franklin, circa 1750, on German immigration to Pennsylvania

-- John
John Jacobus, MS
Certified Health Physicist
e-mail:  crispy_bird at yahoo.com


 
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