Radioactivity induced in detectors by cosmic rays and trapped protons limits the sensitivity of spaceborne gamma-ray spectrometers. 1-D transport calculations are used to analyze the influence of neutron shielding on the radioactive background induced in NaI by neutron-capture reactions. The use of thermalizing absorbers to surround central detector elements is found to be counterproductive. Full 3-D transport codes have been applied to the trapped-proton instance, verifying both the absolute levels of this component and the negative influence of neutron shielding, 1987 Annual Conference on Nuclear and Space Radiation Effects, 28-31 July 1987, Snowmass Village, CO, USA
Shielding effects in spaceborne, NaI gamma-ray spectrometers
Abschirmeffekte in einem Gamma-Spektrometer mit NaJ-Kristall fuer die Raumfahrt
IEEE Transactions on Nuclear Science ; NS-34 , 6, PT.1 ; 1530-1534
1987
5 Seiten, 7 Quellen
Aufsatz (Zeitschrift)
Englisch
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