Electron-emitting source

An electron emission source, electron technology, applied in circuits, discharge tubes, electrical components, etc., can solve problems such as failure to emit normally

Inactive Publication Date: 2019-04-26
HUADONG PHOTOELECTRIC TECHN INST OF ANHUI PROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the satellite is in an isolated and insulated state in space, the satellite itself is launched due to positive charges, and the positive and negative charges on the surface of the satellite are out of balance. Th

Method used

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Embodiment Construction

[0030] The specific implementation of the present invention will be described in further detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.

[0031] Such as Figure 6 The structure of the present invention shown is an electron emission source, which is suitable for use in satellite ion thrusters as an electron emission source.

[0032] In order to realize the invention purpose of making the spacecraft maintain the positive and negative charge balance state, the technical scheme adopted by the present invention is:

[0033] Such as Figure 1 to Figure 7 As shown, the electron emission source of the present invention is provided with a cathode 7 , a grid 1 , an anode 2 , and a reflector 6 ; the cathode 7 is arranged between the reflector 6 and the anode 2 .

[0034] The ele

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Abstract

The invention discloses an electron-emitting source. The electron-emitting source is provided with a negative electrode (7), a grid electrode (1), a positive electrode (2) and a reflecting plate (6);the negative electrode (7) is arranged between the reflecting plate (6) and the positive electrode (2). The electron-emitting source is used for an ion thruster, emits electrons, neutralizes positiveions, and emits negative charges on the surface of an aerospace craft to neutralize the positive ions, so that the aerospace craft is in the positive and negative charge balance state.

Description

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Claims

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Application Information

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Owner HUADONG PHOTOELECTRIC TECHN INST OF ANHUI PROVINCE
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