Title :
SAMPEX measurements of heavy ions trapped in the magnetosphere
Author :
Cummings, J.R. ; Cummings, A.C. ; Mewaldt, R.A. ; Selesnick, R.S. ; Stone, E.C. ; von Rosenvinge, T.T. ; Blake, J.B.
Author_Institution :
California Inst. of Technol., Pasadena, CA, USA
fDate :
12/1/1993 12:00:00 AM
Abstract :
New observations of >15-MeV/nuc trapped heavy ions with Z ⩾2 have been made by the SAMPEX (Solar, Anomalous, and Magnetospheric Particle Explorer) spacecraft in low polar orbit. The composition of these ions, which are located primarily around L=2, is dominated by He, N, O, and Ne. The N, O, and Ne ions are apparently trapped anomalous cosmic rays. Currently, the origin of the trapped He flux is uncertain. These ions can affect the rate of single-event upsets (SEUs) in spacecraft hardware
Keywords :
cosmic ray nuclei; geophysical aspects of cosmic rays; magnetosphere; He ions; N ions; Ne ions; O ions; SAMPEX measurements; low polar orbit; magnetosphere; single-event upsets; spacecraft hardware SEU; trapped anomalous cosmic rays; trapped heavy ions; Cosmic rays; Detectors; Electron traps; Extraterrestrial measurements; Geomagnetism; Helium; Magnetosphere; Space technology; Space vehicles; Telescopes;
Journal_Title :
Nuclear Science, IEEE Transactions on
