System and method for carrying out radiation survey on moving target

Abstract

A system and method for radiation inspection on a moving object. The system comprises a radiation source and a radiation detector. Rays emitted by the radiation source are limited in a scanning area. The scanning area is provided by a first boundary surface and a second boundary surface. The system also comprises: multiple detection units (110, 120, 130, 140, 150, 160) arranged along a detection channel in turn and used for triggering and sending a signal when detecting that the moving object arrives or leaves; and a control module used for receiving signals sent by the multiple detection units (110, 120, 130, 140, 150, 160) and controlling the radiation source according to the received signal. The first to third detection units (110, 120, 130) among the multiple detection units (110, 120, 130, 140, 150, 160) are located at one side of the scanning area and near the first boundary surface. The fourth to sixth detection units (140, 150, 160) among the multiple detection units (110, 120, 130, 140, 150, 160) are located at the other side of the scanning area and near the second boundary surface. The system and the method can implement radiation inspection on moving objects travelling in multiple directions.

Description

technical field [0001] The invention relates to the technical field of radiation scanning, in particular to a system and method for radiation inspection of a moving target. Background technique [0002] At present, the use of high-energy radiation to automatically scan and inspect high-speed moving targets such as moving vehicles can complete the security inspection of smuggled, illegal, and prohibited items without interrupting the high-speed passage of vehicles, which is ideal for 100% inspection of vehicles means. [0003] Existing inspection systems of this type usually have at least one radiation source and a matching collimator. The collimator collimates the rays emitted by the radiation source into a fan-shaped beam, and several sensors are used to detect the target moving in a certain direction. A detector array is arranged on the opposite side of the radiation source, which receives the radiation that penetrates the moving target and forms a digital image, through ...

AI Technical Summary

Problems solved by technology

[0004] After a lot of research and analysis, it is found that although the above-mentioned systems can complete the basic inspection tasks of moving targets, there are still certain disadvantages, that is, due to the limitation of their system structure, this type of system can only perform inspections on moving targets from a single specific direction. Inspection, but it is impossible to inspect moving targets traveling in other directions. For applications where the ground traffic network is complex and the system occupies a limited area, this type of system will not be available, resulting in low inspection efficiency and increased equipment and labor input costs.

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