A semiconductor detector with high linearity and fast response

A semiconductor and fast-response technology, applied in the direction of radiation measurement, instruments, measuring devices, etc., can solve problems such as limited applications, achieve fast time response, high pulse linearity, and improve the effect of dynamic follow-up ability

Active Publication Date: 2021-08-31
NORTHWEST INST OF NUCLEAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The low pulse linearity and slow time response of CZT detectors greatly limit its application in the field of pulsed radiation detection

Method used

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  • A semiconductor detector with high linearity and fast response
  • A semiconductor detector with high linearity and fast response
  • A semiconductor detector with high linearity and fast response

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. This embodiment takes the CZT detector as an example for illustration. It should be noted that the present invention is also applicable to other semiconductors. The difference lies in the selection of scintillators, resistors, capacitors and other devices with different parameters according to the semiconductor material parameters, which has wide applicability. .

[0037] like figure 1 As shown, the CZT detector proposed in this embodiment includes a housing 3, a semiconductor component and a scintillator component;

[0038] The housing 3 includes a horizontal cylinder 14 and a side cylinder 15 communicating with the horizontal cylinder 14, and the angle between the central axis of the horizontal cylinder 14 and the central axis of the side cylinder 15 is 45°; it should also be noted that: In this embodiment: the material of the shell 3 is Fe, ...

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Abstract

The invention relates to a semiconductor detector with high linearity and fast response, which includes a casing and a semiconductor component; the casing is provided with a scintillator component and a semiconductor component; At least two support columns at the bottom of the cylinder are fixed in the side cylinder; a semiconductor crystal is installed on the substrate; a high-voltage electrode layer is arranged between the lower surface of the semiconductor crystal and the upper surface of the substrate, and a collecting electrode layer is arranged on the upper surface of the semiconductor crystal to receive the scintillator Part of the fluorescence excited by the component; the high-voltage electrode layer is connected to an external high-voltage power supply through a high-voltage line, and the collecting electrode layer outputs a signal to the outside through a signal output wire. The invention mainly utilizes the scintillator to couple the semiconductor component, and overcomes the problems of low pulse linearity and slow time response of the existing semiconductor crystal.

Description

technical field [0001] The invention relates to a radiation detection device, in particular to a semiconductor detector with high linearity and fast response. Background technique [0002] Cadmium zinc telluride (CdZnTe, referred to as CZT) is a new room temperature compound semiconductor material, which has comprehensive advantages such as high average atomic number, high density, high resistivity and wide band gap. [0003] The high average atomic number makes the CZT detector have a high detection efficiency for medium and high energy X / γ-rays; [0004] High density makes the CZT detector small in size, has strong compatibility in group detection, and has great advantages in space detection; [0005] The high resistivity and wide bandgap enable CZT detectors to have lower dark current at room temperature, which solves the low-temperature application limitations of commonly used Si and Ge semiconductor detectors, and effectively reduces the complexity of the detection sys...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01T1/202G01T1/24
CPCG01T1/202G01T1/24
Inventor 陈翔韩和同管兴胤宋朝晖刘君红李刚卢毅易义成
Owner NORTHWEST INST OF NUCLEAR TECH
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