Propagation of solar neutrons through the atmosphere of the Earth

Details Propagation of solar neutrons through the atmosphere of the Earth Propagation of solar neutrons through the atmosphere of the Earth

Apr 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994jgr....99.6651s&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 99, no. A4, p. 6651-6665

Physics

34

Earth Atmosphere, Particle Acceleration, Solar Neutrons, Solar Terrestrial Interactions, Wave Propagation, Elastic Scattering, Gamma Rays, Monte Carlo Method, Solar Flares

Scientific paper

The propagation of solar neutrons through the atmosphere of the Earth has been calculated by a Monte Carlo method using a nuclear interaction model which can reproduce the existing data obtained by accelerator experiments. With this calculation, it has been found that the elastic scattering process plays an important role in the propagation of solar neutrons in the atmosphere at an incident energy below approximately 200 MeV. By applying this calculation to the analysis of a solar neutron event observed at Mount Norikura Cosmic Ray Observatory on June 4, 1991, it is possible to interpret the event as gamma rays and neutrons having been produced impulsively at the time of the solar flare. The event observed at Jungfraujoch on June 3, 1982 can be explained similarly.

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