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AW: Help needed
-----Ursprüngliche Nachricht-----
Von: owner-radsafe@list.vanderbilt.edu
[mailto:owner-radsafe@list.vanderbilt.edu]Im Auftrag von John Andrews
Gesendet: Dienstag, 09. Dezember 2003 05:11
An: john grant
Cc: radsafe@list.vanderbilt.edu
Betreff: Re: Help needed
john grant wrote:
>I volunteer at the Museum of American Heritage in Palo Alto,
>California. I am planning an exhibit on: Radiation in Everyday Life.
>
>I have an Eberline 14SA meter. I plan to have this meter set up near
>several everyday sources of radiation, such as, a quantity of Morton
>Lite Salt ( 275 cpm ), a green glass measuring cup ( 200 cpm ), a Kodak
>Cheveron camera made about 1954 ( 400 cpm ) and a Coleman type lantern
>mantel ( 10,000 cpm ).
>
>I am trying to find a piece of Fiesta ware and some decorative tiles to
>add to the collection.
>
>I have heard Brazil nuts mentioned on this list but the nut meats I
>found did not measure above background. Would nuts with shells read
>higher? I am looking for things that are clearly above background.
----------------------------------------
Brazil nuts exhibit an enhanced Ra-226 concentration, which cannot be
detected by simple instruments. They will "act" on ingestion.
Best wishes for your project!
Franz
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