Patent ID: 7294969
Filing Date: 2007-11-13
Classification: F03H,H01J,H05H

Abstract:
1. A high-frequency discharge plasma generation-based two-stage Hall-effect plasma accelerator comprising an ion acceleration section, and a high-frequency wave supply section for supplying a high-frequency wave to said ion acceleration section, said ion acceleration section including: said high-frequency wave supply section including high-frequency wave introduction means for introducing the high-frequency wave generated by said high-frequency wave generation means, into the space of said annular acceleration channel, wherein: said ion acceleration section is operable to control a degree of said ion acceleration in accordance with said acceleration voltage serving as an acceleration control parameter; and said high-frequency wave supply section is operable to control an amount of said plasma generation in accordance with said high-frequency wave output serving as a plasma-generation control parameter to be controlled independently of said acceleration control parameter.