EXTERNAL DOSE ESTIMATES FOR FUTURE BIKINI A TOLL INHABITANTS

摘要

To evaluate the potential radiation doses that may be received by the returning Bikinians, we sur¬veyed the residual radioactivity on Bikini and Eneu Islands in June of 1975. An integral part of the survey included measurements of gamma-ray exposure rates which are used to estimate external gamma-ray doses. The survey showed that on Bikini Island the rates are highly variable:values near the shores are generally of the order of 10 to 20μR/h, while those within the interior average about 40μR/h with a range of roughly 30 to 100μR/h. Eneu Island, how¬ever, is characterized by more or less uniformly distributed gamma radiation levels of less than 10μR/h over the entire island.