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Comparison of backgrounds in OSO-7 and SMM spectrometers and short-term activation in SMMThe backgrounds in the OSO-7 Gamma-Ray Monitor and the Solar Maximum Mission Gamma-Ray Spectrometer are compared. After scaling to the same volume, the background spectra agree to within 30 percent. This shows that analyses which successfully describe the background in one detector can be applied to similar detectors of different sizes and on different platforms. The background produced in the SMM spectrometer by a single trapped-radiation belt passage is also studied. This background is found to be dominated by a positron-annihilation line and a continuum spectrum with a high energy cutoff at 5 MeV.
Document ID
19900038268
Document Type
Conference Proceedings
Authors
Dunphy, P. P. (New Hampshire Univ. Durham, NH, United States)
Forrest, D. J. (New Hampshire Univ. Durham, NH, United States)
Chupp, E. L. (New Hampshire, University Durham, United States)
Share, G. H. (U.S. Navy, E. O. Hulburt Center for Space Research, Washington DC, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Subject Category
SPACE RADIATION
Funding Number(s)
CONTRACT_GRANT: NASA ORDER S-14513-D
CONTRACT_GRANT: NAS5-28609
Distribution Limits
Public
Copyright
Other