Galactic cosmic ray neon isotopic abundances measured by the cosmic ray isotope spectrometer (cris) on ace

W. R. Binns, M. E. Wiedenbeck, E. R. Christian, A. C. Cummings, J. S. George, P. L. Hink, M. H. Israel, J. Klarmann, R. A. Leske, M. Lijowski, R. A. Mewaldt, E. C. Stone, T. T. Von Rosenvinge, Nathan Eugene Yanasak

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Abstract

We present measurements of neon isotopic abundances from the ACE-CRIS experiment. These abundances have been obtained in seven energy intervals over the energy range of ~80≤E≤280 MeV/nucleon. We find that the 22Ne/20Ne abundance ratio at the cosmic-ray source is a factor of 5.0±0.2 greater than for the solar wind. These measured abundances agree well with previous experiments. The significance of these results is discussed.

Original languageEnglish (US)
Pages (from-to)767-772
Number of pages6
JournalAdvances in Space Research
Volume27
Issue number4
DOIs
Publication statusPublished - Aug 2 2001

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ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science

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