[ RadSafe ] HELP: Victoreen THYAC III 490

Parent, Eric Eric.Parent at dfo-mpo.gc.ca
Mon Oct 27 10:02:57 CDT 2014

Hello all.

I have a question concerning and old Victoreen THYAC III 490 Geiger counter with a test source on the side. I would like to know if anybody has information on what kind of isotopes is that test source and what activity ?

Thank you for your help

Eric Parent

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