PLASMA ACCELERATOR WITH CLOSED ELECTRON DRIFT Russian patent published in 2011 - IPC H05H1/54 

FIELD: physics.

SUBSTANCE: plasma accelerator with closed electron drift has a discharge chamber with inner and outer annular walls which form an annular acceleration channel with an open output part. The anode-gas distributor (4) is mounted inside the acceleration channel at a distance from the section of the output part of the discharge chamber greater than the width of the acceleration channel. The cathode-compensator is placed behind the section of the output part of the discharge chamber. The magnetic system comprises sources of magnetomotive force in form of magnetising coils (5, 7) fitted on cores (6, 8), the end part of the magnetic core (9), the inner and outer magnetic poles (10, 11) which form an annular inter-pole working gap near the section of the output part of the discharge chamber and an annular magnetic screen (12).

EFFECT: high efficiency of accelerating a stream of ions and longer life of the plasma accelerator owing to extension of the zone for regulating the magnetic field in the in immediate proximity to poles of the magnetic system.

6 cl, 2 dwg