(Tis assumes the 9x activity is ‘always about 1.5 times the Cs
activity which is consistent with the soil analyses in general.)
We
would thus expect free air peta exposures to average ~ 200 pR/h or
more in the interior of Engebi and 100 wR/h in the village areas.
Assuming (based on O'Brien's estimates) the skin dose to be ~ 1fe
of the free air exposure and the testes dose to be ~1% of the free
air exposure we would expect at most additional contributions to the
gonadal dose from beta rays of ~ 10 mrad/yr.
Beta doses are thus
insignificant compared to gamma.doses when considering gonadal or
bone doses.
Note, however, the high free air beta exposure rates may
have influenced some of the field TLD results, thus adding to the
conservatism assumed in our models.
Ne Re ee
a
eta ieraaen
tt pee eke wetoe: eyeee Feat oes ey tee ot A i ee ee
"
,