Double-mode rapidly-passing type moving target radiation detection system and method

Abstract

The invention discloses a double-mode rapidly-passing type moving target radiation detection system which comprises a radiation source, a collimator, a sensor unit, a control module, a radiation detector and a radiation imaging device. The radiation source is used for emitting rays with different dosage rates, the sensor unit is used for identifying the type of moving targets and monitoring the positions of the moving targets in a detection channel, and the control module is used for controlling the radiation source to emit the rays in preset working modes according o the types and the positions of the moving targets; the preset working modes correspond to the types of the moving targets, the rays emitted by the radiation source in the different working modes are different in dosage rates. The invention further discloses a double-mode rapidly-passing type moving target radiation detection method. By means of the double-mode rapidly-passing type moving target radiation detection system and method, radiation detection can be carried out on the whole moving targets such as vehicles.

Description

technical field [0001] The invention relates to the field of radiation imaging, in particular to a dual-mode speed-through radiation inspection system and method for a moving target. Background technique [0002] A high-energy radiation system usually has a radiation source, a collimator that collimates the radiation emitted by the radiation source into a fan beam, a sensor that detects the position of a moving target, a radiation detector, radiation imaging equipment, and radiation shielding facilities. Automatic scanning and inspection of high-speed moving targets such as vehicles can search for smuggled and illegal and prohibited items without interrupting the high-speed passage of vehicles, which is an ideal means of safety inspection of cargo vehicles. [0003] During the radiation inspection of high-speed moving vehicles, radiation avoidance must be implemented for the part of the vehicle carrying people, and no scanning will be performed. Usually, the radiation sourc...

AI Technical Summary

Problems solved by technology

However, the consequence of doing this is that the radiation system cannot scan the cab of the vehicle (such as the head of a freight truck), and does not scan the entire vehicle for some passenger vehicles (such as a passenger car with a higher density of passengers), so it is impossible to achieve accurate detection. The whole vehicle inspection of the vehicle has formed a potential safety hazard

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