AW: [ RadSafe ] Mango's Tooth Fairy Sr Radiochemistry

[Franz Schönhofer]

John, 

As usual I support your message, but with some "caveats":

I explained in my most recent message to RADSAFE, which might be distributed
after a delay of up to several days due to monitoring of my messages on this
list, my perception of the TFP's analytical methods and that they should be
clarified. There is not the slightest discrepency about the Sr-90
contamination in teeth depending on the year, investigated world wide and
documented in dozens of studies published in international journals.  The
"concern" about the Sr-90 concentration in teeth is nothing but a severe
misinterpretation of data. 

Franz Schoenhofer, PhD
MinRat i.R.
Habicherg. 31/7
A-1160 Wien/Vienna
AUSTRIA


-----Ursprüngliche Nachricht-----
Von: radsafe-bounces at radlab.nl [mailto:radsafe-bounces at radlab.nl] Im Auftrag
von John Jacobus
Gesendet: Dienstag, 03. Juli 2007 22:25
An: Nielsen, Erik; radsafe at radlab.nl
Betreff: Re: [ RadSafe ] Mango's Tooth Fairy Sr Radiochemistry

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) 
> This email message is intended only for the use of
> the named recipient.
> Information contained in this email message and its
> attachments may be
> privileged, confidential and protected from
> disclosure. If you are not
> the intended recipient, please do not read, copy,
> use or disclose this
> communication to others. Also please notify the
> sender by replying to
> this message and then delete it from your system.
> 
> _______________________________________________
> You are currently subscribed to the RadSafe mailing
> list
> 
> Before posting a message to RadSafe be sure to have
> read and understood the RadSafe rules. These can be
> found at: http://radlab.nl/radsafe/radsaferules.html
> 
> For information on how to subscribe or unsubscribe
> and other settings visit: http://radlab.nl/radsafe/
> 


+++++++++++++++++++
““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


 
____________________________________________________________________________
________
8:00? 8:25? 8:40? Find a flick in no time 
with the Yahoo! Search movie showtime shortcut.
http://tools.search.yahoo.com/shortcuts/#news
_______________________________________________
You are currently subscribed to the RadSafe mailing list

Before posting a message to RadSafe be sure to have read and understood the
RadSafe rules. These can be found at:
http://radlab.nl/radsafe/radsaferules.html

For information on how to subscribe or unsubscribe and other settings visit:
http://radlab.nl/radsafe/