Multi-array detector modular structure for radiation imaging

Abstract

A multi-array detector module structure used in radiation imaging is disclosed that belongs to the technique field of radiation detection. It includes: shell, base plate, several detectors array that consist of several detectors and the bottom of the shell is fixed with the base plate. The structural features are: the superstrata plate and substrate plate those are formed by the setting frame are mounted on the base plate, and the external detector arrays are mounted on it. The detectors arrays in the middle are fixed separately with the adjacent detector arrays. The heavy metal sheet is mounted between the each detectors array and the detectors, and there is lead sheet between the periphery of detector arrays and setting frames. The information output ends of detector arrays are connected with the input ends of electronic circuit board mounted in the shell. Compared with the present technique, the invention just increases smaller investment and structure improvement, and great economic benefit can be got. It has simple structure, and easy to install, operate, and repair.

Description

technical field [0001] The invention relates to an array detector module structure used in a radiation imaging system, and belongs to the technical field of radiation detection. Background technique [0002] In the prior art, detector arrays used in radiation imaging are generally arranged in a single column, and the manufacturing process and image reconstruction of a single-array detector module are relatively simple. However, in a radiation system in which pulsed X-rays generated by an electron accelerator are used as a radiation source, generally speaking, in order to ensure that the image is not distorted and the information of the inspected object is not missed, there should be the following relationship: the maximum speed of scanning the inspected object and the accelerator The repetition frequency is proportional to the width of the sensitive area of ​​the array detector. However, in practical applications, there is a limit to increasing the repetition rate of the ac...

AI Technical Summary

Problems solved by technology

However, in practical applications, the increase of the repetition rate of the accelerator is limited. On the one hand, there are technical difficulties; Need to increase the electrical power consumption of the entire radiation imaging system

At the same time, the efficiency of the radiation field used by the existing single-array detector is very low. Whether it is the radiation field of the accelerator or the radiation field of the isotope radioactive source, the area containing the available information rays of the object under inspection at the detector is much larger than that of the detector. The width of the sensitive area of ​​the array

Increasing the width of the sensitive area of ​​each detector in a single array detector will increase the pixels of the detector, which is not conducive to the radiation imaging system to distinguish small objects such as thin metal wires, and thus may lose some rich structural information of the inspected object. , affecting image quality

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