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X-ray emission system and detection system

A detection system and X-ray technology, applied in the field of X-ray detection, can solve problems such as poor correction effect, and achieve the effects of low cost, reduced leakage, and simple overall structure

Pending Publication Date: 2020-12-04
SHANGHAI RAYS ELECTRONICS SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of this application is to provide an X-ray detection system to solve the problem of poor correction effect; at the same time, it also proposes an X-ray emission system

Method used

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  • X-ray emission system and detection system
  • X-ray emission system and detection system
  • X-ray emission system and detection system

Examples

Experimental program
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Effect test

Embodiment approach 1

[0036] Example of X-ray detection system:

[0037] The X-ray detection system includes a detector array 6 (i.e. the first detector array), a background controller, and as Figure 4 The shown X-ray emission system includes a cabin body 1 , and an X-ray source, a collimator 4 and a single detector 10 are arranged in the cabin body 1 .

[0038] The X-ray source includes an X-ray emission source 7 and an X-ray emission source shielding device 8, and the X-ray emission source 7 emits a main ray 5 and a side beam 11 having a certain angle with the main ray, and the angle is greater than 0, and in practical engineering applications, the included angle is generally 5° to 15°; the X-ray emission source shielding device 8 (the X-ray emission source shielding device 8 is made of lead material) is used to shield the main ray 5 and the side rays X-rays other than the beam ray 11, so the X-ray emission source shielding device 8 is only provided with the main ray outlet and the side beam ra...

Embodiment approach 2

[0051] Example of X-ray detection system:

[0052] The difference between the X-ray detection system of this embodiment and the X-ray detection system in Embodiment 1 is that the side beam intensity detection device is different. In Embodiment 1, the side beam intensity detection device is a single detector 10, and only Detect the radiation intensity of the side beam ray center, and in this embodiment, the side beam ray intensity detection device is a second detector array, which comprehensively detects the radiation intensity of the side beam 11 at different diffusion angles in the form of a detector array, Compared with detecting the radiation intensity at one angle by a single detector 10 and then calculating the radiation intensity at other angles, in this embodiment, the radiation intensity at different diffusion angles of the side beam 11 can be obtained respectively through detectors with different diffusion angles, and then Correct the imaging ray in the corresponding ...

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Abstract

The invention relates to an X-ray emission system and a detection system, and belongs to the technical field of X-ray detection. The detection system comprises a cabin body and a first detector array,wherein the cabin body is internally provided with an X-ray source used for emitting a main ray and a side beam ray, a collimator used for limiting the radiation range of the main ray, and a side beam ray intensity detection device used for collecting the radiation intensity of the side beam ray; an included angle is formed between the main ray and the side-beam ray; and the radiation intensity of the side-beam ray measured by the side-beam ray intensity detection device is used as a compensation amount to correct the radiation intensity of the main rayspassing through a to-be-detected object. The radiation intensity of the main ray cannot be weakened by detecting the side-beam ray; the leakage of side-beam ray to the environment is reduced; and the radiation intensity distribution of theside-beam ray and the main ray at different angles is the same, and the influence of accelerator working condition fluctuation on the side-beam ray and the main ray is the same, so that the intensityof the main ray is corrected more accurately by utilizing the radiation intensity of the side-beam ray.

Description

technical field [0001] The invention relates to an X-ray emission system and a detection system, belonging to the technical field of X-ray detection. Background technique [0002] In order to prevent the occurrence of safety accidents, security inspection equipment is installed in crowded places or transportation gateways. As a non-destructive testing technology, digital radiation imaging system is widely used in security inspection equipment, including fixed container inspection system and mobile container inspection system. [0003] The digital radiation imaging system is an inspection system based on a certain ray perspective imaging technology, such as: X-ray. The principle of X-ray detection is that when the X-ray passes through the material, the intensity will be attenuated due to being absorbed and scattered by the material. The degree of attenuation is the same as that of the material. The nature of the material is related to the thickness, the greater the density a...

Claims

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Application Information

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IPC IPC(8): G01N23/04G01N23/10
CPCG01N23/04G01N23/10
Inventor 王骞王新奎郑振吉
Owner SHANGHAI RAYS ELECTRONICS SCI & TECH