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Dotted line composite scanning backscattered and stereo transmission imaging device

A composite scanning and imaging device technology, applied in the direction of using radiation for material analysis, etc., can solve the problems of detection cost and increased occupied space, and achieve the effect of fine quality

Inactive Publication Date: 2010-02-24
北京睿思厚德辐射信息科技开发有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

This combination improves detection performance but doubles detection cost and footprint

Method used

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  • Dotted line composite scanning backscattered and stereo transmission imaging device
  • Dotted line composite scanning backscattered and stereo transmission imaging device
  • Dotted line composite scanning backscattered and stereo transmission imaging device

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Embodiment Construction

[0023] The point-line composite scanning backscattering and stereoscopic transmission imaging device proposed by the present invention has a structure such as figure 2 As shown, it includes a radiation source 1, a point-line compound scan generator 2, a rear or front slit collimator 3 and 13, a line array transmission detector 6, a transmission channel synchronization switch 7, a transmission signal processor 10, a rear A scatter detector 4 , a backscatter channel synchronous switch 9 , a backscatter signal processor 8 , an image computer 11 and a stereoscopic image observer 12 . The point-line compound scan generator 2 is set on the radiation source 1 or placed in front of the radiation source 1 . The rear or front slit collimator collimates the rays emitted by the point-line composite scan generator 2 in the fan-shaped scanning plane. The rear or front slit collimator and the backscatter detector 4 are placed on one side of the radiation source of the detected object 5 , a...

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Abstract

The invention relates to a dotted line composite scanning backscattered and stereo transmission imaging device, belonging to the technical field of radiation imaging security detection equipment. In the device, a dotted line composite scanning generator is sheathed on a radiation source or at the front of the radiation source; a rear or front slit collimator collimates a ray emitted by the dottedline composite scanning generator in a sector scanning surface; the rear or front slit collimator and a backscattered detector are arranged at one side of the radiation source of an detected object, and a line array transmission detector is arranged at the other side thereof; a backscattered channel synchronous switch and a backscattered signal processor are connected between the backscattered detector and an image computer; and a transmission channel synchronous switch and a transmission signal processor are connected between the line array transmission detector and the image computer. In theimaging device, only one radiation source and one scanning generator and primary detection are adopted to obtain a backscattered image and a fine transmission image for highlighting lightweight objects, wherein, the transmission image with fine image quality can be also a stereo image.

Description

technical field [0001] The invention relates to a point-line composite scanning backscattering and three-dimensional transmission imaging device, which belongs to the technical field of radiation imaging safety detection equipment. Background technique [0002] At present, security inspection departments generally use X-ray transmission imaging technology to inspect luggage and vehicles, which absorbs high atomic number substances such as copper and iron and is easy to be found; drugs, explosives and other low atomic number substances absorb very little, are not easy to find in the image, and are easy to miss check. The Compton backscattering of X-rays or gamma rays in objects is more sensitive to light substances with low atomic numbers, which can be used to highlight light objects such as drugs and explosives; it has also been used in security imaging in recent years. However, the backscattering of the object is very weak, and the backscattering rays at a certain point of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/04
Inventor 王经瑾
Owner 北京睿思厚德辐射信息科技开发有限公司
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