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Circuit design based on X-ray detection technology

A detection technology and circuit design technology, which is applied in the direction of electrical components, measuring devices, and adjustment of electrical variables, can solve the problems of X-ray detection circuit open-loop instability, easy to be affected by input, poor stability, etc., to improve power supply efficiency, The effect of high peak hold accuracy and high output impedance

Inactive Publication Date: 2017-03-29
祁艳
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Problems solved by technology

[0003] In order to overcome the shortcomings of the existing X-ray detection circuit, such as open-loop instability, easily affected by input, low precision, and poor stability, and improve the anti-noise performance, stability and conversion accuracy of the X-ray detection circuit, the present invention designs a It is suitable for occasions where it is necessary to use the X-ray energy level to detect the intensity of energy rays, and to study the attenuation characteristics of X-ray penetrating substances

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  • Circuit design based on X-ray detection technology
  • Circuit design based on X-ray detection technology
  • Circuit design based on X-ray detection technology

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Embodiment Construction

[0012] figure 1 Among them, X-ray detection can be divided into three parts: detector, measurement circuit and power supply. The detector is the core part. The most widely used detector at present is the scintillation counter. The scintillation counter is mainly composed of NaI crystal and photomultiplier tube. A general X-ray detection circuit includes a scintillation detector, an input stage, a linear amplification stage, an amplitude analysis stage, and a frequency counting stage. The design structure diagram is as follows figure 2 shown. The power supply can be divided into two parts: high voltage power supply and low voltage power supply. The photomultiplier tube is supplied with voltage by a high-voltage power supply, while the power supply part of the X-ray measurement circuit is supplied with voltage by a low-voltage power supply.

[0013] figure 2 Among them, the high-voltage power supply mainly includes two parts: an oscillator and a voltage doubler rectifier....

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Abstract

The invention provides a circuit design based on X-ray detection technology and discloses a circuit using X-ray detection technology for research on the attenuation characteristics of substances penetrated by X-rays. The circuit is simple in structure, high in output impedance, wide in pass band, good in high-frequency characteristic and flexible in design, has the characteristics of good linearity and high peak value retention precision and overcomes the disadvantages of proneness to influence of input, low precision and poor stability of conventional X-ray detection circuits.

Description

technical field [0001] The invention relates to a circuit design based on X-ray detection technology, which is suitable for occasions where it is necessary to use X-ray energy levels to detect energy ray intensity and to study the attenuation characteristics of X-ray penetrating substances. Background technique [0002] X-ray energy level detection mainly measures the intensity of different energy rays, which is used to study the attenuation characteristics of X-ray penetrating substances, and can determine the distribution of components of mixed substances. Multiple X-ray sources with different energy levels can pass through different media. By measuring the absorption of different energy levels, the medium properties and composition of the mixed substance can be solved. After the ray passes through the detector, a voltage pulse is generated, and after being input into the processing measurement circuit, the count of the X-ray intensity is recorded. Rays are converted into...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/083H02M3/337
Inventor 祁艳
Owner 祁艳
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