Current type cadmium zinc telluride (CZT) detector with compression joint structure

Abstract

The invention belongs to a radiation detection device, in particular relates to a current type cadmium zinc telluride (CZT) detector with a compression joint structure and solves the technical problems of poor packaging structure of the CZT detector under the limited process and technical conditions, increase of leakage current, infirmness of electrodes, high preparation difficulty, instable performance, low customized product processing rate and the like of the packaged CZT detector. The current type CZT detector comprises a shielding shell, two cable adapters which are arranged outside the shielding shell, a through hole which is formed in the shielding shell, and a CZT crystal, conductive gasket rings, the electrodes and pressing covers, which are arranged in the through hole, wherein conductive layers are coated on the surface of two sides of the CZT crystal; the conductive gasket rings, the electrodes and the pressing covers are divided into two groups and symmetrically distributed on the two sides of the CZT crystal; the conductive gasket rings are respectively contacted with the two sides of the CZT crystal; the electrodes are contacted with the corresponding conductive gasket rings; and the pressing covers are used for fixing the electrodes and the conductive gasket rings into the shielding shell and pressed against the CZT crystal. The current type CZT detector is high in detection efficiency and detection sensitivity, and stable and reliable in performance.

Description

technical field [0001] The invention belongs to a radiation detection device, in particular to a current type CZT detector with a crimping structure. Background technique [0002] With the development of science and technology, the generation and application of high-current and transient pulsed radiation fields have become new research hotspots. For the effective diagnosis of this kind of strong current and transient nuclear reaction process, it is necessary to develop suitable detectors to obtain information. Existing pulsed gamma ray detection usually uses current mode detectors. In practical applications, there are two main types of current mode semiconductor detectors: one is based on Si-PIN semiconductor detectors; the other is based on wide bandgap semiconductor materials such as CdZnTe (CZT), GaN, and CVD diamond. detector. These two types of detectors are mainly used for the detection of charged particles (electrons, protons, alpha particles, fission fragments, et...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a current-type CZT detector with a crimping structure, which solves the poor packaging structure of the CZT detector caused by the process and technical conditions, the leakage current increases after packaging, the electrodes are not firm, and the preparation is difficult. Technical problems such as unstable performance and low yield of customized products

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