Potassium Iodide -Reply -Reply -Reply

[Charles Willis <CAW@nrc.gov>]

Scott,

NCRP-93 does say that the average dose withing 10 miles of TMI was 8 mrem but
there is nothing in the NCRP report or anywhere else that I know of to suggest
that the dose was primarily dose to the thyroid from radioiodine.  In the plethora of
reports on that accident, there is agreement that the radioiodine release was small
and that the principal doses were from the noble gasses.   The maximum off site
thyroid dose was estimated to be less than 5 mrem; that is dose to the thyroid, not
the CEDE from the thyroid dose (NUREG-0558).    Of course you are right about
the pre-release estimates possibly being higher, if there had been any pre-release
estimates.

Charlie Willis
caw@nrc.gov