Solyakov D. Generation of high-power plasma streams by quasy-steady-state plasma-dynamic systems

This thesis is devoted to analysis of plasma flow in profile channels of the high-power quasi-steady-state plasma accelerators (QSPA) and compression zone formation in plasma streams, generated by magnetoplasma compressor (MPC). Electric current distributions in QSPA channels both with multi roads and complicated magneto-plasma electrods-transformers were investigated. The influence of boundary conditions on plasma flow and plasma streams parameters was shown. In optimal QSPA mode of operation realized quasi-steady-state plasma flow with time of generation 100-150 times of particle flight along accelerating channel. The plasma steam velocity is in good agreement with theoretical limit for present experimental condition. Main fundamental properties of plasma flow in profile channels were investigated. It was shown that in optimal modes of operations transsignal, isomagnetic, isobernoully plasma flow are realized and current carry by ions. Space distributions of Ampere force in plasma stream, generated by MPC were investigated experimentally. As was discovered plasma stream decelerated in compression zone and it's kinetic energy transform to thermal energy. Quasi-steady-state compression plasma flow was obtained during 20-30 times of particle flight along MPC channel and density in compression zone is close to theoretical limit for present experimental conditions.