Mathematical modeling of the passage of the nucleonic-nuclear component of cosmic radiation through the earth’s atmosphere

Abstract

A theoretical model is worked out and a characteristic is given for the physical processes occurring in the passage of high-energy neutrons and protons through the earth’s atmosphere. A mathematical model of internuclear and intranuclear cascades is presented. The process of nuclear spallation is regarded as consisting of direct expulsion of one or several high-energy nucleons from a nucleus and de-excitation of the residual nucleus in the form of an evaporation cascade. The mathematical model is based on the Monte Carlo method. Results of numerically modeling the passage of the proton component through an actual atmosphere are presented.