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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 16, issue 8
Ann. Geophys., 16, 931–939, 1998
https://doi.org/10.1007/s00585-998-0931-y
© European Geosciences Union 1998
Ann. Geophys., 16, 931–939, 1998
https://doi.org/10.1007/s00585-998-0931-y
© European Geosciences Union 1998

  31 Aug 1998

31 Aug 1998

Hydrogen and helium isotope inner radiation belts in the Earth's magnetosphere

G. I. Pugacheva1, W. N. Spjeldvik2, A. A. Gusev1, I. M. Martin1, and N. M. Sobolevsky3 G. I. Pugacheva et al.
  • 1University of Campinas, Instituto de Fisica/DRCC, 13083-970, Campinas, SP, Brazil
  • 2Department of Physics, Weber State University, Ogden, Utah, 84408-2508, USA
  • 3Institute of Nuclear Research of Russian Academy of Science, 117312, Moscow, Russia

Abstract. Radial transport theory for inner radiation zone MeV ions has been extended by combining radial diffusive transport and losses due to Coulomb friction with local generation of D, T and 3He ions from nuclear reactions taking place on the inner edge of the inner radiation zone. Based on interactions between high energy trapped protons and upper atmospheric constituents we have included a nuclear reaction yield D, T and 3He flux source that was numerically derived from a nuclear reaction model code originally developed at the Institute of Nuclear Researches in Moscow, Russia. Magnetospheric transport computations have been made covering the L-shell range L=1.0–1.6. The resulting MeV energy D, T and 3He ion flux distributions show a strong influence of the local nuclear source mechanism on the inner zone energetic D, T and 3He ion content.

Key words: Atmospheric composition and structure (Thermosphere-composition and chemistry) · Magnetospheric physics (Energetic particles · trapped).

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