Aerial radiological survey of the United States Department of Energy's Rocky Flats Plant, Golden, Colorado. Date of survey, July 1989.

摘要

The aerial radiological survey of the Rocky Flats Plant and surrounding area was conducted during July 1989 by EG&G/EM for the DOE. The survey consisted of airborne, in situ, and soil sample measurements of the natural and man-made gamma radiation sources in around the plant site. The survey was conducted at the request of DOE Headquarters in support of the Tiger Team investigation to determine if changes had occurred in the radiation profile of the Rocky Flats area as a result of plant operations since a prior survey in 1981. Germanium detector measurements were made at 1.0 m above ground level (AGL) to verify the aerial data. Since the germanium has a lower minimum detectability for Am-241, it was used to refine the deposition isopleths both spatially and quantitatively. Soil samples were collected at each measurement location. 7 refs., 28 figs., 12 tabs. (ERA citation 15:033057)