Injection of plasma streams with energies of up to 50 kJ, stagnation temperatures of more than 1 keV and β approx. = 1 into open magnetic traps

Investigations of injection of plasma streams through magnetic mirrors and cusps, with energies of up to 80 kJ, stagnation temperatures of more than 1 keV and β approx. = 1, were carried out. These streams were generated by MK-200 and MK-500 pulse gas filling plasma guns. It is shown that if the Mach number M > 1 is satisfied in the region of highest possible magnetic field strength, the head part of the stream with β approx. = 1 passes through it freely. The tail part of the stream if partially cut off as a result of a shock wave arising in the flow region where the M > 1 condition is violated. The efficiency of the head part of the stream with β approx. = 1 passing through the cusp is close to 1. (author). 3 refs, 7 figs, 2 tabs