title: Energy spectra of geomagnetically trapped oxygen ions.
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.
authors.affiliation: Institut für Experimentelle und Angewandte Physik, Universität Kiel, Kiel, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Leicher
authors.forename: R
authors.initials: R
authors.lastname: Beaujean
authors.forename: W
authors.initials: W
authors.lastname: Enge
mesh_terms: D003359:Cosmic Radiation; D018534:Earth, Planet; D009010:Monte Carlo Method; D010100:Oxygen / Q000032:analysis*; D010969:Plastics; D011834:Radiation Monitoring / Q000295:instrumentation*; D011874:Radiometry; D019445:Solar Activity; D018531:Spacecraft / Q000295:instrumentation*
chemical_list: D010969:Plastics; D010100:Oxygen