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Measurements of the 0.1-27 MeV cosmic gamma ray spectrum by Apollos 15 and 16The spectrum of diffuse cosmic gamma rays over the 0.127 MeV range was measured by a 7 x 7 cm omnidirectional NaI counter on Apollo 15 and 16. Location of the spectrometer on a 7.6 m extensible boom, use of precision pulse-height analysis, and operation in several modes permitted data to be obtained from which spacecraft and other background contributions could be separated. Recent measurements verified the Apollo spectrum.
Document ID
19750017756
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Peterson, L. E. (Tata Inst. of Fundamental Res. Greenbelt, MD, United States)
Trombka, J. I. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Dyer, C. S. (NASA Goddard Space Flight Center San Diego, United States)
Matteson, J. L. (Calif. Univ.)
Date Acquired
August 8, 2013
Publication Date
November 1, 1974
Publication Information
Publication: ESRO The Context and Status of Gamma Ray Astronomy
Subject Category
Space Radiation
Accession Number
75N25828
Funding Number(s)
CONTRACT_GRANT: NGR-05-005-003
CONTRACT_GRANT: NAS9-10670
CONTRACT_GRANT: NAS7-100
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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