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Container checking system with CT fault scanning function

A technology of tomography and inspection system, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of limiting the accuracy of inspection of complex containerized goods, unable to obtain tomographic images, etc., to achieve reasonable design, accurate inspection results, and reduced The effect of floor space

Active Publication Date: 2006-05-31
NUCTECH CO LTD
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Problems solved by technology

[0003] The above-mentioned X-ray radiation imaging inspection system currently in use, because its detection devices are all fixedly installed, usually has only one direction of relative movement with respect to the object to be inspected, so only radiation projection images can be obtained, and the tomography of a certain part of the object to be inspected cannot be obtained. images, which to some extent limits the accuracy of complex cargo inspections

Method used

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  • Container checking system with CT fault scanning function
  • Container checking system with CT fault scanning function

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Embodiment Construction

[0014] see figure 1 with figure 2 , the present invention includes a radiation source 1 using a linear electron accelerator or an isotope, a corrector 2, a front collimator 3, a rear collimator 6, a detector array 5 and a transport device 7 that can be loaded with a container inspection vehicle for reciprocating linear motion and A remote control device 9 equipped with an image acquisition module, an operation inspection module, and an electrical control module. The conveying device 7 of the plate type conveyor chain structure carried by multiple rows of cylindrical rollers that can be loaded with container inspection vehicles is composed of two parts and forms an intermittent structure, and a ring that allows container inspection vehicles to pass is arranged in the longitudinal direction of the intermittent gap 11 Shaped rotating frame 4. The outer side of the circular rotating frame 4 fixes the radiation source 1 and the corrector 2 facing the radiation source 1, and the ...

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Abstract

A container detection system with CT fault scanning function is prepared as fixing radiation source and calibrator facing to said source on external side of circular rotation frame and front collimator, back collimator and detector array on internal side of circular rotation frame to let sector X ray pass through appliance, front collimator and container detection vehicle then to face just to back collimator and detector array; hinging circular rotation frame on circumnavigation frame fixed on ground to enable circular rotation frame to rotate synchronously around as fixed center by utilizing a driving device.

Description

technical field [0001] The invention relates to a large-scale container inspection system used by customs, in particular to a container inspection system with CT tomographic scanning function. Background technique [0002] In the prior art, since the beginning of the 1990s, drag-type container detection systems have come out, such as the large-scale container detection systems produced by Heyman and British Aerospace. They are installed in a radiation-shielding inspection channel, equipped with a fixed radiation source that can generate high-energy X-rays and an array detector that can receive X-rays passing through the container. The container vehicle is dragged through the detection channel. When the container passes through the X-ray beam, the X-rays that pass through the container penetrate into the detector. According to the intensity change, the density distribution of the objects contained in the box is reflected, and the ray intensity is transformed into The gray sc...

Claims

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Application Information

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IPC IPC(8): G01N23/04G01N23/083G01N23/10
Inventor 胡海峰吴玉成王利明孙尚民韩彦军彭华江南梁志忠
Owner NUCTECH CO LTD
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