On modeling of the radiation-induced charge effects in the fine dispersed materials of closed-cell structure
Supercomputer simulation algorithms for investigation of radiation-induced charge effects in heterogeneous polydisperse materials with direct account of their microstructure are developed. A geometric model of the heterogeneous environment is worked out with the use of algorithms Stillinger-Lubachevsky for multimodal structures. The model includes a discrete system of detectors for statistical evaluation of functionals on the space of solutions of the photon-electron cascade transport equations. The results of the demonstration calculations of the parameters of the charge fields are presented. It is shown the spatial distribution of radiation-induced charges has a sharply inhomogeneous structure due to the presence of the boundaries of materials with strongly different radiation properties.