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Re: Am241 Marking Wand



If that's one of the 10-20 mCi numbers, I'd advise thinking twice. You're
looking at a 432y halflife, medium-E alpha-emitter (60keV photons). The loss
of one would be a major pain. The Co57 wands that are widely available are
usually no more than 100 uCi, with a 270d halflife. And, they're relativley
cheap, even at a replacement rate of 1/y.

chris alston