CT (computed tomography) luggage safety inspection system and detector device of CT safety inspection system

Abstract

The invention provides a CT (computed tomography) luggage safety inspection system which comprises a scanning channel, an X-ray source and a detection arm support, wherein luggage objects get in and get out of the CT luggage safety inspection system through the scanning channel; the X-ray source is arranged on one side of the scanning channel; the detection arm support is arranged on one side opposite to the scanning channel; a plurality of detector components are arranged on the detection arm support. The CT luggage safety inspection system is characterized in that the head peaks of the receiving surfaces of at least one group of detector crystals on each of the detection components are positioned on an arc which takes the center of the scanning channel as a circle center; the multiple detection components are connected with one another in sequence; all the receiving surfaces of the detector crystals in the multiple detection components are positioned in a range of radial ray bundles which take a target as a circle center; furthermore, connecting lines of the middle points of the receiving surfaces of at least one group of detector crystals in each detection component and the target of the X-ray source are perpendicular to the receiving surfaces of the detector crystals.

Description

technical field [0001] The invention relates to a detector device used in a luggage article CT security inspection system. More specifically, the present invention relates to a detector device applied to fast and small-sized CT imaging technology, which can achieve a higher scanning speed under the premise of ensuring the best equipment outline size requirements. In addition, the present invention also relates to a luggage CT security inspection system comprising the above-mentioned detector device. Background technique [0002] In the computerized tomography technology based on X-ray radiation imaging (referred to as "CT technology"), the characteristic distribution data of the scanned material in the fault can be obtained through CT data reconstruction, and by analyzing the characteristic data, it can be realized. suspect substances to be identified. In the field of baggage security inspection, improving the scanning speed of the security inspection machine and reducing ...

AI Technical Summary

Problems solved by technology

In addition, some design manufacturers simply divide the detector into several sections, which can appropriately reduce the width of the device, but it does not completely solve the impact of the detector arrangement on the width of the device

In addition, since most detector crystals need to be sealed for use, simple segmentation of detector crystals will inevitably result in data acquisition and control being controlled by different control boards and acquisition modules, requiring users to solve the impact of different acquisition timing and transmission. It is unfavorable to the whole data acquisition process, which hinders the rapid scanning of CT system

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