Protons with kinetic energy E > 70 MeV trapped in the Earth's radiation belts

作者：Fiandrini E^*; Esposito G; Bertucci B; Alpat B; Ambrosi G; Battiston R; Burger WJ; Caraffini D; Di Masso L; Dinu N; Ionica M; Ionica R; Pauluzzi M; Menichelli M; Zuccon P

来源：Journal of Geophysical Research, 2004, 109(A10): A10214.

DOI：10.1029/2004JA010394

• trapped energetic protons
• protons in the radiation belts
• precipitating protons
• protons in South Atlantic Anomoly

[ 1] Accurate measurements of under cutoff proton fluxes in the energy range 0.07 - 9.1 GeV have been performed with the Alpha Magnetic Spectrometer (AMS) at altitudes of 370 - 390 km in the geographic latitude interval +/- 51.7degrees. A clear transition from a Stably Trapped population typical of the Inner Van Allen belts, in the region of the South Atlantic Anomaly (SAA), to a Quasi-Trapped population in the regions underneath the Van Allen belts outside the SAA is observed. The flux maps as a function of the canonical adiabatic variables L, alpha(o), and energy E are presented and discussed.

• 出版日期2004-10-28