Publication Date:
2019-07-13
Description:
The 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.
Keywords:
SPACE RADIATION
Type:
CONF-790836-3
,
LBL-8920
,
International Cosmic Ray Conference; Aug 06, 1979 - Aug 18, 1979; Kyoto; Japan
Format:
text
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