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A current type czt detector with crimping structure

A current-type and detector technology, applied in the field of current-type CZT detectors, can solve the problems of poor packaging structure of CZT detectors, low processing and customized yields, and weak electrodes, so as to improve the detection performance of pulsed radiation and ensure good contact. , stable and reliable performance

Inactive Publication Date: 2016-07-06
NORTHWEST INST OF NUCLEAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • A current type czt detector with crimping structure
  • A current type czt detector with crimping structure
  • A current type czt detector with crimping structure

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Embodiment Construction

[0018] see figure 1 and figure 2 , The current type CZT detector with crimping structure of the present invention is composed of shielding shell 6, CZT crystal 1, soft conductive pad ring 2 with extremely low resistivity, electrode 3, gland 8, cable adapter 4 and other parts. The shielding shell is used as an electromagnetic shielding structure to shield electromagnetic interference in space, and the material can be DT4 electromagnetic pure iron. In the through hole inside the shielding shell 6, a soft conductive backing ring 2 with extremely low resistivity is used to directly contact the CZT chip 1 coated with a conductive layer, and both sides of the outer side of the conductive backing ring 2 directly contact the metal electrode 3. The prepared gland fixes the CZT crystal, conductive gasket, and electrodes in the shielding shell; the current signal is drawn from the conductive layer, conductive gasket, and electrode 3 to the cable adapter 4, wherein the top of the shield...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01T1/24
Inventor 欧阳晓平赵晓川刘芳刘洋刘金良陈亮张子川蒋飞军王伟
Owner NORTHWEST INST OF NUCLEAR TECH
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