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Shutter device for shielding radiation and radiation scanning imaging system

A shutter and ray technology, which is applied in the direction of measuring devices, nuclear radiation exploration, material analysis using radiation, etc., can solve the problems of unavailable detection equipment and long time, and achieve the effect of prolonging the service life and high image quality

Active Publication Date: 2017-06-16
北京一体通探测技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the "energy switching" time of various types of ray sources is relatively long, at least several seconds, so this method cannot be applied to actual detection equipment

Method used

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  • Shutter device for shielding radiation and radiation scanning imaging system
  • Shutter device for shielding radiation and radiation scanning imaging system
  • Shutter device for shielding radiation and radiation scanning imaging system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as image 3 , Figure 4 , Figure 5 As shown, the structure of the radiation source shutter device provided in Embodiment 1 of the present invention includes a radiation source 101, a radiation source shield 102 wrapped around the radiation source 101, and a collimator 103 sealed and connected to the radiation source shield 102, The ray source shield 102 has a ray outlet 1021, the collimator 103 has a collimation channel 1031 communicating with the ray outlet 1021, the collimation channel 1031 communicates with the outside world, and the collimator 103 is opposite to the ray source 101. The emitted rays are coupled and collimated, and a shutter 106 is set in the collimator 103 , and the shutter 106 can close or open the entire collimation channel 1031 .

[0040] Wherein, the radiation outlet 1021 is rectangular, the wall of the radiation source protection body 102 has a certain thickness, and the height of the rectangular radiation outlet 1021 gradually increases...

Embodiment 2

[0043] Such as Figure 6 , Figure 7 , Figure 8 As shown, the structure of the radiation source shutter device provided in Embodiment 2 of the present invention includes a radiation source 101, a radiation source shield 102 wrapped around the radiation source 101, and a collimator 103 sealed and connected to the radiation source shield 102, The ray source shield 102 has a ray outlet 1021, the collimator 103 has a collimation channel 1031 communicating with the ray outlet 1021, the collimation channel 1031 communicates with the outside world, and the collimator 103 is opposite to the ray source 101. The emitted rays are coupled and collimated, and a shutter 106 is set in the collimator 103 , and the shutter 106 can close or open the entire collimation channel 1031 .

[0044] Wherein, the radiation outlet 1021 is rectangular, the wall of the radiation source protection body 102 has a certain thickness, and the height of the rectangular radiation outlet 1021 gradually increase...

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PUM

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Abstract

The invention provides a shutter device and a radiation scanning imaging system for shielding radiation, including a radiation emitter with a shutter, a secondary collimator, a detector and a control system, the radiation emitter includes a radiation source, the radiation source Wrapping the radiation source protection body and the collimator sealingly connected with the radiation source protection body, the radiation source protection body has a radiation outlet, the collimator has a collimation channel communicating with the radiation outlet, and the collimation channel Communicating with the outside world, the collimator couples and collimates the rays emitted by the ray source, and a shutter is set in the collimator, and the shutter can close or open the entire collimation channel. The present invention is especially suitable for online rapid security inspection Equipment, the shutter of the ray source is closed to block the ray, and the scanning "radiation energy" is automatically converted, scanning the front part with low-energy ray and scanning the box part under test with high-energy ray. Protect drivers passing through the detection equipment while quickly providing clear and complete scan images.

Description

technical field [0001] The patent of the present invention relates to a radiation imaging device for safe detection, in particular to a radiation imaging device for safe detection with a shutter device for shielding rays. Background technique [0002] In life, many places need to be equipped with large-scale security inspection equipment, such as customs, airports, border defense, prisons, docks, postal luggage, transportation and logistics yards, etc. Most of them have large-scale radiation imaging equipment with online non-destructive security inspection. The radiation imaging technology of online non-destructive security inspection uses high-energy X-rays or γ-rays emitted by ray devices or ray sources to penetrate the inspected article without contact, so as to obtain the perspective image of the inspected article. Early large-scale radiation imaging equipment began to scan cargo after all personnel had evacuated. In order to improve the efficiency of security inspectio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N23/04G01V5/00
Inventor 李联琮张志刚和爱国王庆东
Owner 北京一体通探测技术有限公司