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Safety check system of manifold effect detection fusing technology applying X ray

A safety inspection and X-ray technology, applied in the field of safety inspection radiation imaging, can solve the problems of inability to obtain the density information of the composition of the inspected object, inability to detect flake dangerous goods, etc., achieving convenient operation, low inspection dose, and improved detection rate. Effect

Inactive Publication Date: 2009-08-19
THE FIRST RES INST OF MIN OF PUBLIC SECURITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a safety inspection system using X-ray multi-effect detection fusion technology in order to overcome the shortcomings of the existing equipment that cannot obtain the material density information of the inspected object and cannot detect thin flake dangerous goods

Method used

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  • Safety check system of manifold effect detection fusing technology applying X ray
  • Safety check system of manifold effect detection fusing technology applying X ray

Examples

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Embodiment

[0030] Such as figure 1 As shown, a safety inspection system using X-ray multi-effect detection fusion technology includes an X-ray source 1, a collimator 2, a chopper device 3, a dual-energy transmission detector 10, two forward scatter detectors 5, two A backscatter detector 4, a signal processor 8, a computer system 9, two color displays 11 and a delivery system 12, an X-ray source 1 emits a conical X-ray beam, and a collimator 2 collimates the conical X-ray beam into The slice fan-shaped X-ray beam, the chopper device 3 modulates the slice fan-shaped X-ray beam into a pen beam-shaped X-ray flying spot 15 moving from bottom to top or from top to bottom, and the angle of the knife-edge plate of the chopping device 3 varies with the X-ray beam The angle changes; the pencil beam X-ray flying spot 15 interacts with the object 14 on the conveying system 12, and the X-ray scattered by the object 14 is detected by two backscatter detectors 4 and two front scatter detectors. 5 rec...

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Abstract

The invention discloses a safety check system applying an X-ray multi-effect detection fusion technology which comprises an X-ray source, a collimator, a chopped-wave device, a dual-energy transmission detector, a forward scattering detector, a backward scattering detector, a signal processor, a computer system, a monitor and a conveying system, wherein the forward and the backward scattering detectors are positioned at two sides of the X-ray beam at a flying spot; the dual-energy transmission detector is positioned opposite the X-ray source; the forward scattering detector is positioned at one side of the dual-energy transmission detector; the backward scattering detector is positioned at one side of the X-ray source; and the dual-energy transmission detector, the forward scattering detector and the backward scattering detector are all connected with the signal processor which is connected with the computer system. The special algorithm can accurately and automatically identify target materials according to two characteristic quantities of effective atomic number Zeff and density of compositions of an obtained object to be checked, and give a red mark on an image, thus improving the detectivity and reducing the rate of false alarm.

Description

technical field [0001] The invention relates to a safety inspection system using X-rays, in particular to a safety inspection system using X-ray multi-effect detection fusion technology. The invention belongs to the technical field of safety inspection radiation imaging. Background technique [0002] Security inspection is an important measure to ensure social stability and people's lives and properties are not damaged. With the increasing rampant of terrorists, the threat to important departments and facilities such as airports, railways, entertainment venues, etc. is becoming more and more serious. In order to increase security inspections, Security inspection departments at all levels continue to adopt new equipment and new technologies. At present, the security inspection equipment widely used in important departments such as airports, customs, and railways is X-ray transmission equipment. This type of equipment can only provide transmission images of the inspected obje...

Claims

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Application Information

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IPC IPC(8): G01N23/083G01N23/20G01N23/203G01N23/04
Inventor 崔玉华黄校垣邢羽董国平
Owner THE FIRST RES INST OF MIN OF PUBLIC SECURITY
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