At present, the creation of compact sources for power supply of high-current accelerators is connected with MCG usage. In spite of considerable progress in creation of capacitors with high specific characteristics, the capacitive storages are not competitive with MCG when energies of generated pulse are higher than several kJ. On the basis of the experience collected in HEDRC for a long time of design and experimental investigations of high-current REB accelerators supplied by MCG and literature analysis as well, the design of self-contained high voltage source (SCHVS) have been accomplished

The vircator with the inductive storage scheme is studied. The experiment as well as numerical simulations indicate the strong influence of the power supply scheme on the vircator generation efficiency. The results 3-D numerical modelling of the vircator are presented.