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Energy spectra of geomagnetically trapped oxygen ions
M Leicher1, R Beaujean, W Enge
1Institut für Experimentelle und Angewandte Physik, Universität Kiel, Kiel, Germany.
Radiation Measurements
|May 25, 2002
Abstract:
In a series of COSMOS satellite flights plastic nuclear track detectors have been exposed in low-earth orbits to monitor anomalous cosmic rays (ACR) at energies below 25 MeV/nuc. The analysis of energy spectra has now been extended to energies up to 40 MeV/nuc for two exposures aboard COSMOS 2260 in 1993 and COSMOS 2311 in 1995. Our data on trapped ACR (TACR) oxygen energy spectra might indicate the influence of energy-dependent stripping probabilities and the presence of multiply charged ACR oxygen at high energies as reported by latest SAMPEX observations.