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Theory for charge states of energetic oxygen ions in the earth's radiation beltsFluxes of geomagnetically trapped energetic oxygen ions have been studied in detail. Ion distributions in radial locations below the geostationary orbit, energy spectra between 1 keV and 100 MeV, and the distribution over charge states have been computed for equatorially mirroring ions. Both ionospheric and solar wind oxygen ion sources have been considered, and it is found that the charge state distributions in the interior of the radiation belts are largely independent of the charge state characteristics of the sources. In the MeV range, oxygen ions prove to be a more sensitive probe for radiation belt dynamics than helium ions and protons.
Document ID
19780050653
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Spjeldvik, W. N.
(National Oceanic and Atmospheric Administration Boulder, CO, United States)
Fritz, T. A.
(NOAA, Space Environment Laboratory, Boulder Colo., United States)
Date Acquired
August 9, 2013
Publication Date
April 1, 1978
Publication Information
Publication: Journal of Geophysical Research
Volume: 83
Subject Category
Space Radiation
Accession Number
78A34562
Funding Number(s)
CONTRACT_GRANT: NASA ORDER W-13952
Distribution Limits
Public
Copyright
Other

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