Application of the GEANT tools for spacecraft internal charging simulation

In report the application of the GEANT Monte-Carlo tools for a calculation of deposition of the electrical charge in dielectric materials of spacecraft are considered. The contribution of processes of energy loss and stopping of primary and secondary cascade particles, formation of holes is analyzed. At calculation of trajectories of movement of all charged particles. The influence an internal electrical field on tracing charge particles is taken into account. The results of calculation of distribution of the internal charge in dielectric material and for some electron energies and space radiation spectra for typical spacecraft orbit are presented. (Author)