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Kurt,
After 7 years of involvement with external
dosimetry at Hanford, the 30 day estimate for Tl-201 is accurate. We
basically said wait 30 days and then see if the individual can pass through a
portal monitor without alarming. Barring some reason why the individual
would have to enter a radiological area before the Tl-201 decayed off, the
ability to not alarm a portal monitor was the primary criteria for going back to
work after the nuclear medicine study.
Les Aldrich, CHP
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