Multi-mode spiral wave ion thruster

Abstract

The invention relates to a multi-mode spiral wave ion thruster and belongs to the field of aerospace electric propulsion. A quartz discharging chamber is placed in a Faraday barrel; an anode is fixedin an opening end of the quartz discharging chamber; an opening end of the quartz discharging chamber is in contact connection with a screen grid; the screen grid, an acceleration grid and a deceleration grid keep a distance; an antenna is mounted on an outer barrel wall of the quartz discharging chamber; a plurality of spiral coils are mounted on an outer wall of the Faraday barrel; a cathode neutralizer is placed at the opening end of the quartz discharging chamber and is used for neutralizing an electrostatic grid electrode to accelerate led-out ion beam flow; the cathode neutralizer and the anode generate an axial electric field, a route of electrons can be effectively increased and the ionization rate is improved. The thruster provided by the invention is provided with the neutralizerand the neutralizer can be used for neutralizing the ion beam flow led out from the electrostatic grid electrode; cathode and anode structures are arranged and the axial electric field can be provided, so that the ionization rate of plasmas is improved and the production cost of ions can be calculated; the designed spiral wave ion thruster has the advantages that an additional magnetic field hasan adjustable bit type and multi-mode working of the thruster can be realized.

Description

technical field [0001] The invention relates to a multi-mode helical wave ion thruster, in particular to a helical wave ion thruster with an adjustable additional magnetic field position type and a cathode neutralizer, an anode, and a three-grid electrostatic acceleration system, which belongs to aerospace electric propulsion field. Background technique [0002] The helicon wave ion thruster is a second-order accelerated helical wave thruster, which combines the advantages of high density, high ionization rate, and no electrodes of the helicon wave source, and the high-efficiency electrostatic acceleration of ions by the electrostatic grid optical system in the ion thruster. An electric propulsion device capable of generating high specific impulse and high thrust. [0003] Xia Guangqing of Dalian University of Technology proposed a double-stage grid helical wave ion propulsion device (CN201410597251.2), including a discharge chamber, a helical wave excitation antenna, a met...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of excessive accumulation of thruster negative charge in the prior art, improve the ionization rate of the thruster, evaluate the performance of the thruster, and realize the multi-mode operation of the thruster, and provide a multi-mode helical wave ion thruster

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