An airborne system was assembled to detect terrestrial distributions of Pu. The system consists of arrays of NaI gamma -ray detectors and recording electronics. Preliminary surveys of contaminated areas were conducted from a helicopter. Sensitivity is a few microcuries of Pu per square meter at normal helicopter survey rates of 1-1/2 mi exp 2 /h. Spatial resolution is approx. 120 ft. at a typical survey altitude of 100 ft.
Aerial Survey System for Sensing Low-Energy gamma-Ray Emitters in Weapon Materials
1972
20 pages
Report
Keine Angabe
Englisch
Radioactive Wastes & Radioactivity , Nuclear Instrumentation , Radiation Pollution & Control , Plutonium isotopes , Nai detectors , Survey monitors , Terrestrial ecosystems , Aerial monitoring , Gamma detection , Nuclear weapons , Gamma sources , Sensitivity , Spatial resolution , Electronic equipment , Recording systems , ERDA/510300 , ERDA/450202 , ERDA/440101 , ERDA/440300
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