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Author: Subject: How much Americium-241 contains in a fire detector?
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[*] posted on 9-8-2004 at 08:50
How much Americium-241 contains in a fire detector?

I'm collecting old fire-detektors :D

But I'm wondering how much Americium each detector contains? I borrowed a geiger-counter and the activity was about 40 kBq om each detector, when I have picked out the radioactive source. But I still doesn't know how much of the radioactive piece that is pure Americium. Anyone who knows?
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mrcfitzgerald
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[*] posted on 9-8-2004 at 09:47


A smoke detector contains 0.26 micrograms of americium-241. Source: Carey Sublettes' Nuclear FAQ
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[*] posted on 9-8-2004 at 10:48


Thanks!

That wasn't much! But I expected it was a very, very small amount.
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