Patent ID: 7609002
Filing Date: 2009-10-27
Classification: H01J,H05H

Abstract:
1. A plasma accelerating apparatus, comprising: a channel comprising an outlet port opening at an end of the channel, wherein a plasma beam passes through the channel; and a plurality of grids; wherein the plurality of grids are transversely arranged; wherein the plurality of grids are spaced apart from each other by a predetermined distance; wherein the plurality of grids are provided in the channel; wherein the plurality of grids accelerate the plasma beam toward the outlet port of the channel with an electric field; wherein the plurality of grids comprises: a first grid comprising at least a first opening through which the plasma beam passes, and a second grid comprising at least a second opening through which the plasma beam passes; wherein the first opening and the second opening are formed opposite to each other so that at least a first portion of the first opening and a second portion of the second opening do not communicate with each other with respect to a moving direction of the plasma beam.