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Crystal module and satellite-borne space photoelectric detection unit comprising crystal module

A photoelectric detection and crystal technology, applied in the field of space detection, can solve problems such as high quality, achieve the effects of improving inheritance, shortening the development cycle, and ensuring usability

Active Publication Date: 2020-07-31
ZIJINSHAN ASTRONOMICAL OBSERVATORY CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestic detectors in the past are generally carried. Since the launch of the Chinese Academy of Sciences Space Science Pilot Project, there have been special scientific detection loads gradually. However, the materials used in the photoelectric detection unit are often hard aluminum alloys, and the quality is still relatively high.

Method used

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  • Crystal module and satellite-borne space photoelectric detection unit comprising crystal module
  • Crystal module and satellite-borne space photoelectric detection unit comprising crystal module
  • Crystal module and satellite-borne space photoelectric detection unit comprising crystal module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] like Figure 1 to Figure 5 A crystal module shown in a space-borne photoelectric detection unit includes crystal 109, a crystal protection structure, a temperature detection structure, a performance calibration structure, and an installation interface.

[0061] The crystal protection structure includes a shell 101, an end cap 103 and a quartz glass sheet 106. In this embodiment, the shell 101 and the end cap 103 are made of aluminum. In order to further reduce the structural quality, a magnesium alloy may be considered.

[0062] The tube shell 101 has a T-shaped shape, the upper part is a head, which is connected with the photoelectric conversion module, and is in the shape of a rectangular block, and the lower part is a cylindrical tube body, and the head and the tube body are integrally formed. The shell 101 is provided with a cylindrical body cavity, and the crystal 103 is installed in the body cavity.

[0063] The end cap 103 is composed of an integrally formed cov...

Embodiment 2

[0077] like Figure 14 to Figure 17 A space-borne photoelectric detection unit shown includes a crystal module 1 and a photoelectric conversion module 2 . The structural design of the crystal module 1 is the same as that in Embodiment 1, and the structure of the photoelectric conversion module 2 is as follows Figure 7 to Figure 13 As shown, it includes a photoelectric conversion device 205, an electronic readout circuit board 201 (hereinafter referred to as a PCB board) and a protective structure.

[0078] The photoelectric conversion device 205 is used to convert the flash light emitted by the crystal 109 into photoelectrons. In this embodiment, a more commonly used photomultiplier tube (PMT) is used. Since it is a glass device, the space-borne device needs to experience extremely strong mechanical forces. Vibration environment, so buffer glue 204 is needed to protect it.

[0079] The protective structure also includes an inner bushing 207, a magnetic shielding device 206,...

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Abstract

The invention provides a crystal module and a satellite-borne space photoelectric detection unit comprising the crystal module. The photoelectric detection unit comprises a crystal module and a photoelectric conversion module. The crystal module comprises a crystal, a crystal protection structure, a temperature detection structure, a performance calibration structure and the like, and the photoelectric conversion module comprises a photoelectric conversion device, an electronic reading circuit board, a protection structure and the like. According to the invention, the structure is improved, the crystal module and the photoelectric conversion module are relatively independent. The problem of replacement convenience of the satellite-borne crystal and the photoelectric conversion module can be solved. Improvement of the inheritance of aerospace products is facilitated, and the development period is shortened, the detection device is ensured to be capable of passing the assessment of a space mechanics environment. The photoelectric detection unit meets the requirements of a launching environment, and effectively reduces the structural quality of equipment through integrated compact design on the premise of guaranteeing the structural strength.

Description

technical field [0001] The invention belongs to the technical field of space detection, and in particular relates to a crystal module for space detection and a photoelectric detection unit based on the crystal module. Background technique [0002] To detect high-energy particles in space, a structure with high energy resolution and high reliability is required, and it should have a small mass. Domestic detectors in the past are generally carried. Since the launch of the space science pilot project of the Chinese Academy of Sciences, special scientific detection loads have gradually been available. However, the materials used in the photoelectric detection unit are often hard aluminum alloys, and the quality is still relatively high. [0003] At the same time, it is the first time in my country to use satellites to specialize in space sun detection, which is different from the American RHESSI satellite (using Ge detector, reference RHESSI website), Japan's YOHKOH satellite (H...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/202G01T1/208G01K7/22
CPCG01T1/202G01T1/208G01K7/22
Inventor 胡一鸣陈灯意张哲张岩郭建华马涛张永强黄永益常进
Owner ZIJINSHAN ASTRONOMICAL OBSERVATORY CHINESE ACAD OF SCI
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