HYDROGEN AND HELIUM ISOTOPE INNER RADIATION BELTS IN THE EARTHS MAGNETOSPHERE

Radial transport theory for inner radiation zone MeV ions has been ext ended by combining radial diffusive transport and losses due to Coulom b friction with local generation of D, T and He-3 ions from nuclear re actions taking place on the inner edge of the inner radiation zone. Ba sed on interactions between high energy trapped protons and upper atmo spheric constituents we have included a nuclear reaction yield D, T an d He-3 flux source that was numerically derived from a nuclear reactio n model code originally developed at the Institute of Nuclear Research es in Moscow, Russia. Magnetospheric transport computations have been made covering the L-shell ran L=1.0-1.6. The resulting MeV energy D, T and He-3 ion flux distributions show a strong influence of the local nuclear source mechanism on the inner zone energetic D, T and He-3 ion content.