I-125 Calc.

["Dale E. Boyce" <dale@radpro.uchicago.edu>]

Okay, here are the numbers I cranked out of the current
ANSI standard for I-125:

170 mRem/hr/Ci at 1 meter

4.605E-5 mSv/hr/MBq at 1 meter (there is that S.I. unit the hour again:)

The above use everything above 10 KeV.  If you just use gamma emissions
the dose constants are:

36 mRem/hr/ci at 1 meter

9.85E-6 mSv/hr/MBq at 1 meter


Again note that the current ANSI standard has different constants
for different exposure directions.  This was calculated for an A.P.
exposure direction.

Dale Boyce
dale@radpro.uchicago.edu