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A Large Area Array Detector System Based on Microchannel Plate

A technology of micro-channel plate and detector, which is applied in the field of satellite space autonomous navigation to achieve the effects of fast photon response speed, shortened recovery time and improved electronic gain

Active Publication Date: 2016-01-20
NO 513 INST THE FIFTH INST OF CHINA AEROSPACE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are no mature pulsar detectors that can be used for navigation in the world

Method used

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  • A Large Area Array Detector System Based on Microchannel Plate
  • A Large Area Array Detector System Based on Microchannel Plate
  • A Large Area Array Detector System Based on Microchannel Plate

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Experimental program
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Effect test

Embodiment Construction

[0049] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0050] see figure 1 and figure 2 , the detector includes a casing, a tantalum sheet, a microchannel plate assembly, a scintillator detector, an acquisition and control module and a high voltage module. Microchannel plate (MCP) components, scintillator detectors, acquisition and control modules and high-voltage modules are arranged inside the casing, and tantalum sheets are installed on the four side walls of the casing, and the casing provides a sealed door and a sealed door opening mechanism.

[0051] Each part is described in detail below.

[0052] 1. MCP components

[0053] Such as image 3 As shown, the MCP assembly consists of an input window, a collimator, a high voltage electrode 1, a high voltage electrode 2, a photocathode, a microchannel plate group, a high voltage electrode 3, a charge collection anode, and a high voltage ground arranged se...

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Abstract

The invention discloses a large-area detector system based on a micro-channel plate, which is used for enlarging the area of a detector by designing the micro-channel plate, so as to shorten the outline recovery time of a pulsar and improve the sensitivity of the detector. A micro-channel plate component, a scintillator detector, a collection and control module and high-voltage modules are arranged in a housing; tantalum pieces are mounted on four side walls of the housing; a sealing door and an open mechanism thereof are arranged on the housing; the micro-channel plate component comprises an input window, a collimator, a first high-voltage electrode, a second high-voltage electrode, a photocathode, an MCP group, a third high-voltage electrode, a charge collection anode and a high-voltage ground plane which are arranged from the top to the bottom in sequence; the scintillator detector is arranged below the charge collection anode; the collection and control module is used for conducting anti-coincidence judgment on received electric signals, and sending photon arrival time of signals subjected to anti-coincidence judgment to a satellite platform for processing; the high-voltage modules are used for providing a high-voltage power supply for the micro-channel plate component and the scintillator detector.

Description

technical field [0001] The invention belongs to the technical field of satellite space autonomous navigation, and in particular relates to a large area array detector system based on a microchannel plate (MCP). Background technique [0002] X-ray pulsar navigation uses the X-ray signal radiated by pulsar as the external information reference. After corresponding signal and data processing, high-precision orbit determination, time synchronization and attitude measurement are carried out, and navigation messages and control commands are independently generated to maintain the basic constellation. configuration. This technology can provide navigation information such as position, velocity, time and attitude for various spacecraft in low-earth orbit, deep space exploration and interstellar flight. It has extremely important engineering application value and strategic significance, and has become a hot field of international research. [0003] The X-ray pulsar detector is one of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/02
CPCG01C21/02G01T1/20G01T1/208
Inventor 邵飞胡慧君徐延庭康旭辉连剑孙书坤
Owner NO 513 INST THE FIFTH INST OF CHINA AEROSPACE SCI & TECH
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