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Photon and helium energy spectra above 1 TeV for primary cosmic raysEnergy spectra of protons and helium nuclei in primary cosmic rays were measured above 1 TeV in a series of balloon flights carrying emulsion chambers. Differential spectra may be represented by power laws of indices -2.81 + or - 0.13 and -2.83 + or - 0.20 for protons and He, respectively. No index change was observed for either species over the energy ranges 5-500 TeV for protons and 2-50 TeV/nucleon for He. Intensities were consistent with extrapolations of previously published data below 1 TeV/nucleon.
Document ID
19830064357
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1103/PhysRevLett.51.1010
Authors
Burnett, T. H. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Dake, S. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Fuki, M. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Gregory, J. C. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Hayashi, T. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Holynski, R. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Huggett, R. W. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Hunter, S. D. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Iwai, J. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Jones, W. V. (NASA Marshall Space Flight Center Space Science Laboratory, Huntsville, AL; Tokyo, University, Tokyo; Kobe University, Kobe; Osaka Uni, United States)
Date Acquired
August 11, 2013
Publication Date
September 12, 1983
Publication Information
Publication: Physical Review Letters
Volume: 51
ISSN: 0031-9007
Subject Category
Space Radiation
Accession Number
83A45575
Distribution Limits
Public
Copyright
Other

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