Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-energy quasi monoenergetic electronic beam ground calibration system of detector

A ground calibration and electron beam technology, which is applied in the direction of instruments, measuring devices, scientific instruments, etc., can solve the problems of inability to directly use ground calibration, low frequency of cosmic rays, large energy divergence, etc., and achieve easy promotion, high calibration efficiency, and universal strong effect

Active Publication Date: 2019-05-28
INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
View PDF13 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages of the cosmic ray method: on the one hand, the ray source is not monoenergetic, and its own energy divergence is large; on the other hand, the cosmic ray frequency per unit area near the ground is relatively low, and it takes a long time to complete a calibration
The only disadvantage is that the beam current of the existing electron accelerator is much higher than the electron flux required for detector calibration, so it cannot be directly used for ground calibration
The cost of developing a special device is particularly high, and there is no such type of device in China

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-energy quasi monoenergetic electronic beam ground calibration system of detector
  • High-energy quasi monoenergetic electronic beam ground calibration system of detector
  • High-energy quasi monoenergetic electronic beam ground calibration system of detector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Such as figure 1 As shown, a high-energy quasi-single-energy electron beam ground calibration system for a detector, the system includes an electron linear accelerator 1, a group of quadrupole magnet groups composed of a plurality of quadrupole magnets I31, a pair of dipole magnets 5, a For the quadrupole magnet II32 and the detector 7 to be calibrated.

[0029] A thin target 2 is provided between the electron linear accelerator 1 and the quadrupole magnet group; a slit A4 is provided between the quadrupole magnet group and a pair of dipole magnets 5; a pair of quadrupole magnets is provided between the pair of dipole magnets 5 Ⅱ32, slit B6; a pair of quadrupole magnets Ⅱ32, a pair of dipole magnets 5 and slit B6 are placed antisymmetrically in turn to form an energy-selective deflection structure; slits are sequentially arranged between the quadrupole magnet group and the detector 7 to be calibrated A4 and select energy deflection structure.

[0030] Wherein: the qua...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a high-energy quasi monoenergetic electronic beam ground calibration system of a detector. The system comprises an electronic linear accelerator, a quadrupole magnet set composed of multiple quadrupole magnets I, a pair of dipolar magnets, a pair of quadrupole magnets II and the detector to be calibrated. A thin target is arranged between the electronic linear acceleratorand the quadrupole magnet set; a slit A is arranged between the quadrupole and the pair of dipolar magnets; the pair of quadrupole magnets II and a slit B are arranged between the pair of dipolar magnets; the pair of quadruple magnets II, the pair of dipolar magnets and the slit B are sequentially and dissymetrically placed to form an energy selection deflection structure; the slit A and the energy selection deflection structure are sequentially arranged between the quadrupole magnet set and the detector to be calibrated. Electronic beams supplied by the accelerator are attenuated to quasi monoenergetic electronic beams within the acceptable flux range of the detector, the energy of the calibrated electronic beams is adjustable, the flux is controllable, the system can be used for electronic beam ground calibration of the spaceflight detector, and therefore the gap for the national detector ground electronic beam calibration high-energy region is filled.

Description

technical field [0001] The invention relates to an electron beam ground calibration system, in particular to a detector high-energy quasi-single-energy electron beam ground calibration system. Background technique [0002] With the exploration of space by human beings, space activities have become the frontier field of scientific and technological development in the world today, and are extremely fundamental, forward-looking, innovative and driving. It plays a very prominent role in the application of unique space resources to carry out space research, understand and protect the earth, explore the origin of life, and the formation and evolution of the universe. As countries around the world step up their efforts in space exploration and utilization, while China is further developing and utilizing low-earth orbit space, it has also accelerated the pace of deep space exploration, such as the first scientific exploration of the moon and Mars, which poses a long-term challenge t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/29
Inventor 曹树春余玉洪张子民孙志宇刘铭李中平申晓康赵全堂宗阳
Owner INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products