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RE:





There could be small amounts of uranium not only in the glaze but inside the porcelain itself. Note that thorium and uranium are both to be found in zirconia and kaolin which can be used in the porcelain. The amounts vary with geographical location of the mining of the raw materials.



Grant

     



-----Original Message-----

From: vw 181 [mailto:volkswagen181@HOTMAIL.COM]

Sent: Friday, October 17, 2003 8:31 AM

To: radsafe@list.vanderbilt.edu

Subject: 





Dear Listers,



If you hold a radiation monitor near a porcelain wash basin or toilet bowl, 

you can measure a rise in radiation. Some say this radiation comes from K 

40, others told me this radiation is Th 232.

Does anybody know which isotope is found in porcelain?

Which isotope could be measured at the surface of the material?



A.G. Geerdink



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