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A measurement of the isotopic composition of galactic cosmic ray carbon, nitrogen and oxygenThe paper reports the results of an investigation of the isotopic composition of galactic cosmic ray carbon, nitrogen and oxygen (80-230 MeV/amu) made using the U.C. Berkeley HKH instrument aboard the ISEE-3 spacecraft. The combination of high mass resolution and a large statistical sample makes possible a precise determination of the relative isotopic abundances for these elements. In local interplanetary space the following values are found: C-13/C = 0.067 + or - 0.008, N-15/N = 0.54 + or - 0.03, O-17/O less than 0.027, and O-18/O - 0.019 + or - 0.003.
Document ID
19810027997
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Wiedenbeck, M. E.
(California Univ. Berkeley, CA, United States)
Greiner, D. E.
(California Univ. Berkeley, CA, United States)
Bieser, F. S.
(California Univ. Berkeley, CA, United States)
Crawford, H. J.
(California Univ. Berkeley, CA, United States)
Heckman, H. H.
(California Univ. Berkeley, CA, United States)
Lindstrom, P. J.
(California, University Berkeley, Calif., United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1980
Subject Category
Space Radiation
Report/Patent Number
CONF-790836-3
LBL-8920
Meeting Information
Meeting: International Cosmic Ray Conference
Location: Kyoto
Country: Japan
Start Date: August 6, 1979
End Date: August 18, 1979
Accession Number
81A12401
Funding Number(s)
CONTRACT_GRANT: W-7405-ENG-48
CONTRACT_GRANT: NAS5-20995
CONTRACT_GRANT: NGR-05-003-513
Distribution Limits
Public
Copyright
Other

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