[ RadSafe ] chemical form of industrial irradiation sources

[Peter Bossew]

Dear listers:

Does anybody know in which chemical compound gamma irradiation sources 
used for material testing, medical use or food irradiation and the like, 
are usually delivered ? I am particularly interested in 137Cs, 60Co and 
192Ir in this context.
Anything known about solubility in water or eventual reactions with air ?
Are such sources being used in ceramic compounds ?

As far as I know the Cs source involved in the Goiânia accident was CsCl 
as powder.

Thanks for hints.
Peter



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-----------------------------------------------------
Peter Bossew 

European Commission (EC) 
Joint Research Centre (JRC) 
Institute for Environment and Sustainability (IES) 

TP 441, Via Fermi 1 
21020 Ispra (VA) 
ITALY 
  
Tel. +39 0332 78 9109 
Fax. +39 0332 78 5466 
Email: peter.bossew at jrc.it 

WWW: http://rem.jrc.cec.eu.int 
  
"The views expressed are purely those of the writer and may not in any
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Commission."