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Solar neutron decay proton observations in cycle 21Measurement of the flux and energy spectrum of the protons resulting from the decay of solar flare neutrons gives unique information on the spectrum of neutrons from 5 to 200 MeV. Neutrons from three flares have been observed in this manner during solar cycle 21. The use of the decay protons to determine neutron energy spectra is reviewed, and new and definitive energy spectra are presented for the two large flares on June 3, 1982 and April 25, 1984.
Document ID
19900052369
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Evenson, Paul
(Bartol Research Institute Newark, DE, United States)
Kroeger, Richard
(Hughes Aircraft Co. Los Angeles, CA, United States)
Meyer, Peter
(Chicago, University IL, United States)
Reames, Donald
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 14, 2013
Publication Date
June 1, 1990
Publication Information
Publication: Astrophysical Journal Supplement Series
Volume: 73
ISSN: 0067-0049
Subject Category
Solar Physics
Accession Number
90A39424
Funding Number(s)
CONTRACT_GRANT: NAS5-28500
CONTRACT_GRANT: NAG5-374
Distribution Limits
Public
Copyright
Other

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