Re: x-ray fluoroscence from NaI(Tl) 33keV ??

[Bob Hearn <rah@america.net>]

Ba k-alpha x-ray.

Bob Hearn
rah@america.net

At 09:52 AM 4/29/99 -0500, you wrote:
>In using MCA, I have no reference source below Cs109(88keV), but noticed
>that gamma peaks occur at 76keV and 33keV when Cs137 & Co60 are put inside
>the well counter? I'm  sure that 76keV is coming from K-alpha of Pb (lead)
>but are not quite sure whether it is really from Iodine. Since from
>literature and textbook , 28keV is for the iodine escape peak. Can anybody
>tell me where does the 33keV come from ?
>
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