CASCADE/INPE code system

The CASCADE/INIPE code system, developed jointly by the Joint Institute of Nuclear Search and IATE, is intended for calculating the transport of charg ed particles and neurons in the energy range from several GeV down to therm al energy in media with a complicated geometry and composition. It includes as individual blocks the CASCADE and MCNP-4B programs and an interface pro gram. The CASCADE block is used to model the interaction of charged particl es with target nuclei and particle transport in the medium at energies grea ter than a fixed cutoff energy (20 MeV for neutrons). Transport of neutrons with energy below 20 MeV is using the CASCADE block and preparation of ini tial data for the MCNP-4B block. An example of the calculation of the characteristics of a subcritical react or with an external neutron source is presented. 1 figure, 6 references.