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Energy spectrum and flux of 3- to 20-Mev neutrons and 1- to 10-Mev gamma rays in the atmosphereAn experiment is described which was designed to measure the neutron and gamma ray energy spectrums and fluxes in the energy intervals 3 to 20 MeV and 1 to 10 MeV, respectively. In addition, from the 3 to 20-MeV proton recoil spectrums it is possible to infer the shape of the neutron energy spectrum from 20 to 50 MeV. The detecting system utilized a separate charged particle rejection scheme and a two-parameter display system for the output from the pulse shape discrimination which separated gamma rays from neutrons (n). Two long-duration flights were made with this detector in 1970 at Palestine, Tex. (P sub c = 4.6 Gv) and at Ft. Churchill, Canada (P sub c = 0.3 Gv).
Document ID
19740032604
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Klumpar, D. M.
Lockwood, J. A.
Saint Onge, R. N.
Friling, L. A.
(New Hampshire, University Durham, N.H., United States)
Date Acquired
August 7, 2013
Publication Date
December 1, 1973
Publication Information
Publication: Journal of Geophysical Research
Volume: 78
Subject Category
Space Radiation
Accession Number
74A15354
Funding Number(s)
CONTRACT_GRANT: NGR-30-002-074
CONTRACT_GRANT: NSF GA-33858X
CONTRACT_GRANT: F19628-68-C-0107
Distribution Limits
Public
Copyright
Other

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