| 摘要 |
A pulsed plasma accelerator includes two electrodes ( 1 ) arranged between dielectric bars ( 2 ) made from an ablating material, a discharge channel with an open end part whose walls are defined by the surfaces of electrodes ( 1 ) and dielectric bars ( 2 ), an energy accumulator ( 11 ) and current supplies ( 14,15 ) for connecting the electrodes ( 1 ) with the energy accumulator ( 11 ). The current supplies ( 14, 15 ) define in conjunction with the electrodes ( 1 ) and the energy accumulator ( 11 ) an external electric circuit, with characteristics of the external electric circuit being selected on the condition: 2<=C/L, where C (muF) is the electric capacitance of the external electric circuit, and L is the inductance of the external electric circuit, L<=100 nH. During operation of the plasma accelerator, quazi-nonperiodic pulse discharges are ignited and maintained in the discharge channel. By providing coordinated parameters of the external and internal circuits, a substantial increase in the efficiency of plasma acceleration is achieved.
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