Atmospheric Protons and Antiprotons from Sea Level to Satellite Altitudes

Details Atmospheric Protons and Antiprotons from Sea Level to Satellite Altitudes Atmospheric Protons and Antiprotons from Sea Level to Satellite Altitudes

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....4.2069d&link_type=abstract

Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I

Physics

Scientific paper

The cosmic pflux have recently been measured by several balloon experiment but although the measurement was made at hight altitude, the atmospheric pcontribution is significant and have to be subtracted. This requires a precise description of the particle interaction and propagation in the atmosphere for p, n and p. Here the secondary atmospheric pand pflux are studied by means of a Monte-Carlo simulation procedure. The calculated flux are compared with the available experimental measurements from sea level up to the top of atmosphere (TOA). The agreement with data are very good at all altitudes, and a new estimation of pflux at balloon altitude is shown. The calculation are extended at higher altitudes up to 10 Earth radii, to study the extension of the quasi-trapped particle belt beyond the atmosphere.

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