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A Space Low-Energy Electron Simulation Source Based on Microchannel Plate

A technology of micro-channel plate and low-energy electrons, which is applied in the detailed information of electron multipliers, cathode devices of electron multipliers, dynodes, etc., can solve the problems that pulsar navigation detectors cannot be used to test, and achieve weak electron current density and large The effect of dynamic range

Active Publication Date: 2017-07-07
SHANDONG INST OF AEROSPACE ELECTRONICS TECH
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Problems solved by technology

These radioactive sources also cannot be used for experiments on pulsar navigation probes

Method used

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  • A Space Low-Energy Electron Simulation Source Based on Microchannel Plate

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Embodiment Construction

[0021] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0022] The purpose of the present invention is to provide a kind of space low-energy electronic simulation source based on microchannel plate for X-ray pulsar navigation detector ground test verification, such as figure 1 As shown, it includes a heating plate 1, a microchannel plate 2, a power supply and two grid electrodes 3; the heating plate 1 is located on one side of the microchannel plate 2, and is used to heat the microchannel plate 2 and control the microchannel plate 2 thermal noise; the two sides of the micro-channel plate 2 are loaded with a bias voltage for generating electron beams; the side of the two sides of the micro-channel plate 2 loaded with a relatively high voltage becomes a positive plate, and the other load The lower voltage side becomes the negative plate. The size of the bias voltage affects the size of the electron beam; two gri...

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Abstract

The invention discloses a space low-energy electron simulation source based on a micro channel board. The space low-energy electron simulation source based on the micro channel board comprises a heating board, the micro channel board, a power source and two grid electrodes, wherein the heating board is used for heating the micro channel board (2) and controlling heat noise of the micro channel board, the micro channel board is loaded with an offset voltage through the power source and is used for generating electron beam flows, the two grid electrodes are arranged in an electron beam flow generation direction, a voltage difference is generated between the two grid electrodes, a uniform electric field is generated between the two grid electrodes, and the electrons generated by the micro channel board are accelerated. According to the space low-energy electron simulation source, a problem of light noise existing in light electron emission sources is avoided in principle, through controlling the temperature and the offset voltage of the micro channel board, weak electron flow density, a relatively large dynamic scope and uniform large-scale electron beam flows can be generated.

Description

technical field [0001] The invention relates to the field of precision opto-mechanical technology, in particular to a micro-channel plate-based space low-energy electronic simulation source suitable for ground test verification of X-ray pulsar navigation detectors and calibration of space plasma detectors. Background technique [0002] In the measurement of X-ray photons for the purpose of spatial positioning, the measurement and counting of X-ray photons radiated by a certain pulsar, in addition to the photon counts from the pulsar source, also includes radiation from all directions in the detector's field of view The additional count of entering the field of view, this additional count from non-pulsar sources in space is called background noise. During the pulsar navigation process, the charged particles in the radiation band in the background noise will also be mixed in the pulsar radiation X-ray signal, which will interfere with the photon count received by the pulsar na...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J43/04H01J43/08
CPCH01J43/04H01J43/08
Inventor 史钰峰邵飞孙书坤金东东宫超林胡慧君
Owner SHANDONG INST OF AEROSPACE ELECTRONICS TECH
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