CT detector module based on deep silicon detector modules

Abstract

The invention provides a CT detector module based on deep silicon detector modules. The CT detector module comprises at least two deep silicon detector modules. Each module comprises a master detector chip and at least one slave detector chip; each of the master detector chip and the slave detector chip is provided with a light receiving side, the chips are stacked, and the adjacent chips are arranged at an angle; the light receiving sides in the same module are arranged on the same cambered surface; an integrated chip and a photoelectric unit are arranged on each of the master detector chip and the slave detector chip; the photoelectric units are arranged on the light receiving sides to form a photoelectric array, and each photoelectric unit is connected with an input pin of the corresponding integrated chip; the photoelectric units on the light receiving sides in the same module form a light receiving surface; each main chip is provided with a main output side, and the main output side is opposite to the corresponding light receiving side; each main output side is provided with a read-out PCB, and a read-out bonding pad of each read-out PCB is connected with an output pin of the corresponding integrated chip; the modules are stacked and arranged at an angle; light receiving surfaces of the modules are arranged on the same cambered surface to form a light receiving array surface; and a light shielding layer and an insulating layer are arranged between the adjacent chips.

Description

technical field [0001] The invention belongs to the technical field of detectors, and in particular relates to a CT detector module based on a deep silicon detector module. Background technique [0002] At present, the detectors used on CT are scintillator detectors. The scintillator detectors receive the X-rays that pass through the detection layer and convert them into visible light. The photodiode array receives the light signal and converts it into an electrical signal, and then converts it into a digital signal through AD conversion. , to form the final medical image after computer processing. However, the traditional CT using scintillator detectors has low imaging resolution and cannot provide color images. The equipment is bulky and heavy; and limited by the size of the detector pixels, the spatial resolution is limited. [0003] The new generation of CT uses semiconductor detection photon counters to form the detection unit of CT. The detectors use semiconductor det...

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned traditional CT of the existing technology cannot provide color images and has limited spatial resolution, while the new generation of CT is limited by cadmium zinc telluride and cadmium telluride semiconductor materials with low count rate, poor stability, and high cost. The new generation of CT adopts the dislocation arrangement of the upper and lower layers and occupies a large space. The present invention provides a CT detector module based on a deep silicon detector module to solve the above technical problems

Images