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U.S. Department of Energy
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Aerial radiological survey of the US Department of Energy's Hanford site, Richland, Washington. Date of survey: May/June 1978

Technical Report ·
DOI:https://doi.org/10.2172/6659227· OSTI ID:6659227
During the period from 1 May to 8 June 1978, a radiological survey was conducted over the Department of Energy's Hanford site. A previous survey of the site was performed in 1973. Both surveys were performed by the Energy Measurements Group of EG and G for DOE as part of a nationwide radiation monitoring program. The survey flights were flown at altitudes of 45 m or 60 m, depending on the area, by a helicopter containing 20 sodium iodide detectors. Analysis of the data indicated the predominant radioisotopes at the Hanford site were a mixture of /sup 60/Co, /sup 137/Cs, and naturally occurring radionuclides. The gross gamma activity, along with /sup 137/Cs and/or /sup 60/Co, is presented as isopleth photo overlays of equivalent exposure rate at 1 m above ground level.
Research Organization:
EG and G, Inc., Las Vegas, NV (USA). Energy Measurements Group
DOE Contract Number:
AC08-76NV01183
OSTI ID:
6659227
Report Number(s):
EGG-1183-1828; ON: DE83001733
Country of Publication:
United States
Language:
English