Hall effect thruster with anode having magnetic field barrier

Electric lamp and discharge devices – With positive or negative ion acceleration – Means for deflecting or focusing

Reexamination Certificate

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C313S359100, C313S362100, C313S231310

Reexamination Certificate

active

11233401

ABSTRACT:
An efficiency enhancing anode-magnetic structure of a Hall effect thruster produces a radially directed magnetic field between inner and outer poles at the exit portion of a gas distribution channel. The field-shaping structure includes magnetic material extending alongside the channel with an associated secondary flux-generating component to create an axially directed magnetic field in the area between the anode of the thruster and the exit portion of the gas distribution channel.

REFERENCES:
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patent: 6075321 (2000-06-01), Hruby
patent: 6208080 (2001-03-01), King et al.
patent: 6456011 (2002-09-01), Bugrova et al.
Gavryushin, V.M., and Kim, V., “Effect of the Characteristics of a Magnetic Field on the Parameters of an Ion Current at the Output of an Accelerator with Closed Electron Drift,”American Institute of Physics, pp. 505-507 (Apr. 1981).
Kaufman, H.R., “Technology of Closed-Drift Thrusters,”AIAA Journal 23(1):78-87, 1995.
Morozov, A.I., et al., “Plasma Accelerator with Closed Electron Drift and Extended Acceleration Zone,”Soviet Physics-Technical Physics 17(1):38-45, Jul. 1972.
Morozov, A.I., et al., “Effect of the Magnetic Field on a Closed-Electron-Drift Accelerator,”Soviet Physics-Technical Physics 17(3):482-487, Sep. 1972.

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