Aerial Radiological Survey of the Area Surrounding the Portsmouth Gaseous Diffusion Plant, Portsmouth, Ohio

摘要

An airborne radiological survey was conducted in July 1976. It was centered on the Portsmouth Gaseous Diffusion Plant. Two areas were surveyed: one 35 km exp 2 and the other 16 km exp 2 . Using Nal(Tl) scintillation detectors, measurements were made of the terrestrial gamma radiation over the areas with a series of north-south flight lines. The processed data indicated that on-site radioactivity was due to nuclear matterials currently or previously handled, processed, or stored. Off-site activities were found to be due wholly to the naturally occurring exp 40 K, the exp 238 U chain, and thorium chain gamma emitters. (ERA citation 05:027714)