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A kind of X-ray detector and its preparation method

A detector and x-ray technology, applied in the field of x-rays, can solve problems such as complex preparation process, reduced quantum efficiency and imaging quality, and achieve the effect of improving detection efficiency

Active Publication Date: 2021-10-08
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method has the ability of multi-energy detection, the preparation process of this method is complicated, and there is light loss and light scattering in the scintillator layer during the photoconversion process, which reduces the quantum efficiency and imaging quality.

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  • A kind of X-ray detector and its preparation method
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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] The object of the present invention is to provide an x-ray detector and its preparation method, the electron-hole pairs generated when the x-ray is incident can be quickly collected by electrodes, and the detection efficiency is improved.

[0039] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying dra...

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Abstract

The invention relates to an x-ray detector and a preparation method thereof. Each electrode layer is divided into a positive electrode and a negative electrode by a conversion layer formed by interconnecting photoconductive layers, and the electron-hole pairs generated when x-rays are incident can be rapidly dissipated. It is collected by the electrode, which improves the detection efficiency.

Description

technical field [0001] The invention relates to the technical field of x-rays, in particular to an x-ray detector and a preparation method thereof. Background technique [0002] With its superior physical, chemical and biological properties, x-rays are widely used in the fields of national defense, medical treatment, non-destructive testing, nuclear power plants and scientific research. According to the conversion layer of the X-ray detector, the X-ray detector can be divided into a direct type X-ray detector and an indirect type X-ray detector. The direct type x-ray detector directly converts x-rays into charge signals, and the charge is collected by the point and acquisition circuit. The x-ray conversion layer used is composed of photoconductive materials. Commonly used photoconductive materials include organic materials such as: PCBM, P3HT, etc., inorganic materials such as amorphous selenium (a-Se), lead oxide (PbO), etc., and the thickness is usually between 100 μm and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/08H01L31/0224H01L31/0352H01L31/18
CPCH01L31/0224H01L31/0352H01L31/085H01L31/18Y02P70/50
Inventor 张建华李意毛龙妹
Owner SHANGHAI UNIV