>Hi Zuikists,
>I just did a gamma spectrum on germanium spectrometer of my silver nose 50/
>1,4,
>serial number 142604. It had a count rate of around 220 per second(!) ,
>measured
>with a sensitive contamination detector in my lab. The first very rough
>estimate
>shows emission of lead -212 and some other gamma lines. Lead 212 points to
>Thorium
>232 as the source of the decay chain. perhaps some Uranium 238 as well, but
>that
>needs more elaborate analysis of the spectrum. so, even one or two alpha
>particles
>from the surface are possible, but I dont think the whole thing is a
>radiation
>risk.. I will not sell it!
So, what kind of glass is this then? Also, is a count of 220/sec a health
risk?
--
Be Seeing You.
Dirk Wright
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