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The estimation of background production by cosmic rays in high-energy gamma ray telescopesA calculational method of estimating instrumental background in high-energy gamma-ray telescopes, using the hadronic Monte Carlo code FLUKA87, is presented. The method is applied to the SAS-2 and EGRET telescope designs and is also used to explore the level of background to be expected for alternative configurations of the proposed GRITS telescope, which adapts the external fuel tank of a Space Shuttle as a gamma-ray telescope with a very large collecting area. The background produced in proton-beam tests of EGRET is much less than the predicted level. This discrepancy appears to be due to the FLUKA87 inability to transport evaporation nucleons. It is predicted that the background in EGRET will be no more than 4-10 percent of the extragalactic diffuse gamma radiation.
Document ID
19910057868
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Edwards, H. L.
(Stanford Univ. CA, United States)
Nolan, P. L.
(Stanford Univ. CA, United States)
Lin, Y. C.
(Stanford University CA, United States)
Koch, D. G.
(NASA Ames Research Center Moffett Field, CA, United States)
Bertsch, D. L.
(Stanford Univ. CA, United States)
Fichtel, C. E.
(Stanford Univ. CA, United States)
Hartman, R. C.
(Stanford Univ. CA, United States)
Hunter, S. D.
(Stanford Univ. CA, United States)
Kniffen, D. A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hughes, E. B.
(Stanford Univ. CA, United States)
Date Acquired
August 15, 2013
Publication Date
April 1, 1991
Publication Information
Publication: IEEE Transactions on Nuclear Science
Volume: 38
ISSN: 0018-9499
Subject Category
Space Radiation
Accession Number
91A42491
Funding Number(s)
CONTRACT_GRANT: NAG8-752
CONTRACT_GRANT: NAS5-27557
Distribution Limits
Public
Copyright
Other

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