Re: thorium nitrate

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#562

From: LUDVIK KOWALSKI
Date: Mon, 27 Feb 1995 22:17

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Most likely your thorium nitrate sample contains natural Th-232 which
has the half-life of 14 billion years. It is an emitter of alpha and
gamma rays. The alphas are absorbed by glass but gammas are comming out.
It is probably not strongly radioactive but do not put it into food you
eat.

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From: LUDVIK KOWALSKI <KOWALSKI@APOLLO.MONTCLAIR.EDU>
Subject: Re: thorium nitrate
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