Re: I-129 Sources

[Erik Nielsen <enielsen@antechltd.net>]

Iodine 129 does emit gamma radiation.  In fact we routinely measure it by 
it's gamma's with a LEPS detector after chemical separation from 
environmental matrices. Energies (keV)/abundances(%) are 29.46/20.4, 
29.78/37.8, 33.61/10.2, 34.61/2.4, and 39.57/7.5.

These are very comparable to the energies/abundances of I-125: 27.20/40.5, 
27.47/75.6, 30.98/20.1, 31.88/4.38, and 35.49/6.7.

All data from Brown and Firestone, 1987


>Date: Thu, 11 Jan 2001 00:12:07 +0100
>From: "Franz Schoenhofer" <>
>To: <radsafe@romulus.ehs.uiuc.edu>
>Subject: Re: I-129 Sources
>Message-ID: <014001c07b5b$85a50a00$576fbad4@schoenhofer.telekabel.at>
>
>
>"Mock Iodine" is not I-129, it cannot be, because I-129 is not a
>gamma-emitter. Somewhere deeply buried in my brain the information is
>stored, maybe it was Ba-133. Daren is right - the vendors can answer this
>questions.
>Franz


Erik C. Nielsen
Senior Radiochemist

Antech Ltd Waltz Mill Laboratory
P.O. Box 158, Bldg G, M/S 62
Madison, PA 15663

(V) 724-722-5214
(F) 724-722-5208

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