Plasma accelerator with closed electron drift and conductive ins

Details Plasma accelerator with closed electron drift and conductive ins Plasma accelerator with closed electron drift and conductive ins

1997-05-23

1999-04-06

Pascal, Robert

Electric lamp and discharge devices: systems

Discharge device load with fluent material supply to the...

With tangential fluent material supply

31511161, 3133621, 60202, H01J 4112

Patent

active

058923292

ABSTRACT:
A plasma accelerator with closed electron drift comprising a dielectric discharge chamber (6) with internal and external annular walls (13) forming an annular accelerating channel, and a magnetic system with sources (3) of a magnetic field, a magnetic path (2), external (4) and internal (5) magnetic poles forming an operating gap in the region of the discharge chamber exit edges. An anode unit (7) with a gas distributor is located in the accelerating channel interior, and the distance from the anode-gas distributor (7) to the accelerating channel exit plane exceeds said channel width. A cathode-compensator (1) is located beyond the exit plane of the discharge chamber (6). Exit parts of the discharge chamber walls (13) facing the accelerating channel are made of conducting material. At least one dividing annular groove (12) is made on each chamber wall between its conducting and main parts. Conducting parts of the discharge chamber walls are made as annular inserts (8, 9) out of material resistant to ion sputtering. This invention increases accelerator efficiency, and decreases the sputtering rate of the plasma accelerator components as well as accelerator plume divergence.

REFERENCES:
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patent: 5689950 (1997-11-01), Smith
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