Detection system and detection method

A detection system and detection method technology, applied in the field of detection systems, can solve problems such as limited scope of application, and achieve the effects of increasing the scope of application, flexible counting, and highlighting significant progress

Active Publication Date: 2015-07-22
IMDETEK
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Problems solved by technology

[0003] In view of this, the purpose of the embodiments of the present invention is to provide a detection system and detection method to improve the problem of limited application range of detection systems based on scintillator detectors in the prior art

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Embodiment 1

[0067] In order to improve the problems of low ray conversion rate of existing detectors and limited application range of existing detection systems, the designer has carried out various researches. After research, it is found that it is difficult to realize the ray conversion rate by changing the structure of the existing detectors. Therefore, the designer turned to look for other detectors with higher ray conversion rate. After many investigations and verifications, it was found that the CZT detector has better performance. The CZT detector uses a new type of semiconductor material, which can directly The radiation energy is converted into an electrical signal, the conversion efficiency is high, and the required radiation dose is small. In addition, the study also found that compared with existing detectors such as scintillator detectors, CZT detectors not only can work well at room temperature, but also have higher energy resolution and spatial resolution; in addition, the d...

Embodiment 2

[0096] An embodiment of the present invention provides a detection method, which is applied to a detection system. The detection system includes a CdZnTe linear array detector, a processor, and a plurality of readout circuits. The CdZnTe linear array detector includes ZnTe A cadmium detector, the cadmium zinc telluride detector includes a plurality of pixel units, in the plurality of pixel units, there is an interval between the electrodes of two pixel units, and each of the pixel units corresponds to one of the readout circuits, such as Figure 14 As shown, the method includes:

[0097] Step S600: Each pixel unit detects X-rays passing through the object to be tested, and converts the energy of the detected X-rays into electrical signals;

[0098] Step S601: the readout circuit obtains the electrical signal obtained by the corresponding pixel unit, counts and reads out the electrical signal whose amplitude meets a preset threshold, and obtains a count value;

[0099] Among t...

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Abstract

An embodiment of the invention provides a detection system and a detection method and aims to effectively improve the problem that, in the prior art, the detection system based on a scintillator detector has limited applicable range. The detection system comprises a zinc cadmium telluride linear-array detector, a processor and a plurality of read-out circuits; the zinc cadmium telluride linear-array detector comprises a zinc cadmium telluride detector which comprises a plurality of pixel units; among the pixel units, a gap is formed between every two pairs of pixel units, and each pixel unit corresponds to one read-out circuit; the zinc cadmium telluride linear-array detector is used for converting X-ray energy detected, into electrical signals; the read-out circuits are used for acquiring the electrical signals corresponding to the pixel units and read counting of the electrical signals the amplitude of each which meets a preset threshold so as to obtain a count value; the processor is used for analytical imaging. The detection system is simple in structure and ingenious in design and high in ray conversion efficiency, has applicable range evidently widened and is convenient to implement and easy to popularize and apply.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a detection system and a detection method. Background technique [0002] In the prior art, detection systems based on scintillator detectors are mainly used in the fields of medical, industrial and safety nuclear radiation detection and imaging. The designer found through research that the conversion efficiency of this detection system for radiation is low and requires a large radiation dose, the scope of application is limited. Contents of the invention [0003] In view of this, the purpose of the embodiments of the present invention is to provide a detection system and a detection method, so as to improve the problem of limited application range of detection systems based on scintillator detectors in the prior art. [0004] In order to achieve the above object, the technical solution adopted in the embodiment of the present invention is as follows: [0005] In the first a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/24
Inventor 刘辉
Owner IMDETEK
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