Use of an intrinsic germanium detector array for an aerial survey of surface nuclear radiation. Final report, March--June 1976
This report describes the results of an experiment to measure the natural gamma radiation emitted from the earth's 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 NaI(Tl) 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.
- Research Organization:
- Naval Research Lab., Washington, DC (USA)
- OSTI ID:
- 7305044
- Report Number(s):
- AD-A-038418; NRL-MR-3452
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
AERIAL MONITORING
GAMMA SPECTROMETERS
HIGH-PURITY GE DETECTORS
SOLID SCINTILLATION DETECTORS
PERFORMANCE
NATURAL RADIOACTIVITY
AIRCRAFT
SODIUM IODIDES
ALKALI METAL COMPOUNDS
GE SEMICONDUCTOR DETECTORS
HALIDES
HALOGEN COMPOUNDS
INORGANIC PHOSPHORS
IODIDES
IODINE COMPOUNDS
MEASURING INSTRUMENTS
MONITORING
PHOSPHORS
RADIATION DETECTORS
RADIOACTIVITY
SCINTILLATION COUNTERS
SEMICONDUCTOR DETECTORS
SODIUM COMPOUNDS
SPECTROMETERS
440103* - Radiation Instrumentation- Nuclear Spectroscopic Instrumentation
510300 - Environment
Terrestrial- Radioactive Materials Monitoring & Transport- (-1989)