Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984chjss...3..237m&link_type=abstract
(Chinese Journal of Space Science, vol. 3, July 1983, p. 237-243) Chinese Physics (ISSN 0273-429X), vol. 4, Jan.-Mar. 1984, p. 4
Astronomy and Astrophysics
Astronomy
Atmospheric Radiation, Background Radiation, Cosmic Rays, Gamma Ray Astronomy, Neutron Scattering, Radiation Shielding, Gamma Ray Spectrometers, Radiant Flux Density, Radiation Detectors
Scientific paper
A small piggyback detector system is used to study the reduction of gamma-ray background induced by atmospheric neutrons in the type of actively shielded gamma-ray spectroscopes. The system consists of two 1.5 x 1.5 arcsec NaI crystal units, one of which is surrounded by some neutron shield material. The results of a balloon flight in 1981 are presented. The data show that a shield of 3 cm-thick pure paraffin cannot reduce the gamma-ray background. On the contrary, it may even cause some enhancement.
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