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Manufacturing device of continuous energy spectrum electron source

A technology for manufacturing devices and electron sources, applied in the field of space applications, which can solve problems such as differences

Inactive Publication Date: 2013-07-31
LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The literature "Electron-beam-charged dielectrics-Internal charge distribution" research shows that it is mainly due to the difference in the energy spectrum of the incident electrons, the difference in the electric field strength inside the material leads to the difference between the ground test and the actual situation in space.

Method used

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  • Manufacturing device of continuous energy spectrum electron source
  • Manufacturing device of continuous energy spectrum electron source
  • Manufacturing device of continuous energy spectrum electron source

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Embodiment Construction

[0021] Such as figure 1 The manufacturing device of a kind of continuum electron source shown, described device is to apply an electron beam scattering film under electron gun, and described film is the Kapton film 9 that one side is coated with aluminum layer, and the other side is coated with concentric silver ring 8 ;

[0022] The diameter of the Kapton film 9 is 50 mm, and the thickness is 7.5 μm; the thickness of the aluminum layer is 100 nm; the width of the concentric silver ring is 10 mm, and the thickness is 0.2 μm, and the distance between two adjacent concentric silver rings 8 is 1 mm;

[0023] Described concentric silver ring 8 is one or more layers, between the different layers of same silver ring, width decreases successively from bottom to top, and the concentric silver ring width of the bottom layer is 10mm;

[0024] Open a hole with a diameter of 50mm on a 300×300mm aluminum disk, install the electron beam scattering film on the hole, and install the aluminum...

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Abstract

The invention relates to a manufacturing device of a continuous energy spectrum electron source and belongs to the technical field of space utilization. The device is characterized in that an electron beam scattering film is applied under an electron gun; one side of the film is coated with an aluminum layer and the other side thereof is coated with a concentric silver ring Kapton film; during actual use, an aluminum disc equipped with the electron beam scattering film and the electron gun are mounted in a vacuum chamber; the aluminum disc is grounded by a wire; the vacuum chamber is vacuumized to 10-4Pa; the electron gun is turned on to emit a monoenorgetic electron beam; and after the monoenorgetic electron beam penetrates through the electron beam scattering film, an electron beam with a continuous energy spectrum is obtained. The device can simulate a space electron environment relatively truly, and is applicable to surface charge and discharge experiments of a satellite.

Description

technical field [0001] The invention relates to a manufacturing device of a continuous energy spectrum electron source, which belongs to the technical field of space applications. Background technique [0002] The geosynchronous orbit (GEO) space plasma environment will charge the surface materials of the aircraft, thereby causing space electrostatic discharge (SESD), causing interference of sensitive electronic systems and non-command switching events. The most effective way to identify the charging effect of space materials is to simulate the actual space environment on the ground, and conduct ground simulation tests to evaluate the materials used in satellite space. [0003] GEO has an electronic environment with a continuous energy spectrum, while most of the ground simulation tests use single-energy electron guns. The on-orbit data show that there is a big difference between the simulation test using the single-energy electron gun and the real on-orbit monitoring data....

Claims

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Application Information

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IPC IPC(8): G21K1/10
Inventor 汤道坦李得天杨生胜秦晓刚李存惠柳青
Owner LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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