Use of an Intrinsic Germanium Detector Array for an Aerial Survey of Surface Nuclear Radiation.
Final rept. Mar-Jun 76,
NAVAL RESEARCH LAB WASHINGTON D C
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This report describes the results of an experiment to measure the natural gamma radiation emitted from the earths surface with the aid of radiation detectors mounted in an aircraft. For comparison, two detector systems were used an array of intrinsic germanium detectors with a total active volume of 0.4 liter and a single NaITl scintillation detector 30.5 cm diam X 30.5 cm long. Data were recorded on flights at altitudes of 60, 120, 240, 300 and 5100 meters and with average airspeed of 200 knots. A discussion is presented on the application of germanium detectors to the atmospheric radon problem in particular, on the use of the photons with energy 295, 352 and 609 keV to determine the respective contributions from the air and the surface.
- Atmospheric Physics
- Nuclear Physics and Elementary Particle Physics