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[en] The process of angular-spatial evolution of multiple scattering of charged particles can be described by a special case of Boltzmann integro-differential equation called Lewis equation. The underlying stochastic process for this evolution is the compound Poisson process on the surface of the unit sphere. The significant portion of events that constitute compound Poisson process that describes multiple scattering have diffusional character. This property allows to analyze the process of angular-spatial evolution of multiple scattering of charged particles as combination of soft and hard collision processes and compute appropriately its transition densities. These computations provide a method of the approximate solution to the Lewis equation. (orig.)
Source
Kling, A. (Instituto Tecnologico e Nuclear, Sacavem (Portugal)); Barao, F.J.C. (Laboratorio de Instrumentacao e Particulas, Lisboa (Portugal)); Nakagawa, M. (Department of Nuclear Energy System (JAERI), Ibaraki (Japan)); Tavora, L. (Coimbra Univ. (Portugal). Dept. de Fisica); Vaz, P. (Departamento de Fisica (IST), Lisboa (Portugal)) (eds.); 1218 p; ISBN 3-540-41795-8; 
; 2001; p. 1129-1138; MC Monte Carlo 2000: International conference on advanced Monte Carlo for radiation physics, particle transport simulation and applications; Lisbon (Portugal); 23-26 Oct 2000
; 2001; p. 1129-1138; MC Monte Carlo 2000: International conference on advanced Monte Carlo for radiation physics, particle transport simulation and applications; Lisbon (Portugal); 23-26 Oct 2000