Comparison of background in OSO-7 and SMM spectrometers and short-term activation in SMM

P. P. Dunphy; D. J. Forrest; E. L. Chupp; G. H. Share

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https://doi.org/10.1063/1.3818...

Article . 1989 . Peer-reviewed

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https://dx.doi.org/10.1063/1.3...

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Comparison of background in OSO-7 and SMM spectrometers and short-term activation in SMM

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 01 Jan 1989Publisher:AIPJournal:AIP Conference Proceedings, volume 186, pages 259-265 (issn: 0094-243X,

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Authors: P. P. Dunphy; D. J. Forrest; E. L. Chupp; G. H. Share;

doi: 10.1063/1.38185

Comparison of background in OSO-7 and SMM spectrometers and short-term activation in SMM

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Abstract

The 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.

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