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Multi-channel pulse amplitude analyzer

An amplitude analysis, multi-channel pulse technology, applied in the field of nuclear radiation detection, can solve the problems of easily missed pulse data and high instrument price, and achieve the effect of avoiding missed pulse data, reducing production costs and simplifying lines.

Pending Publication Date: 2017-11-07
四川南棠科技有限责任公司 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a multi-channel pulse amplitude analyzer to solve the problems that the existing analytical instruments are easy to miss pulse data and the price of the instrument is high

Method used

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Embodiment 1

[0022] Such as figure 1 As shown, the multi-channel pulse amplitude analyzer 100 includes a radiation detector 1, a filter shaping module 2, an amplification module 3, an A / D conversion module 4, an FPGA data processing module 5 and a control module 6, the filter shaping module 2 and the radiation detection 1, the amplifier module 3 is electrically connected to the filter shaping module 2, the A / D conversion module 4 is electrically connected to the amplifier module 3, and the FPGA data processing module 5 is electrically connected to the A / D conversion module 4 and the user terminal 7 respectively, and the control Module 6 is electrically connected with amplifying module 3 and A / D conversion module 4 respectively, and multi-channel pulse amplitude analyzer 100 of the present invention reduces production cost by simplifying circuit, and analog signal is difficult to separate with superimposed noise in transmission process, and noise As the signal is transmitted and amplified, ...

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Abstract

The invention provides a multi-channel pulse amplitude analyzer. The analyzer comprises a radiation detector which is used for measuring nuclear radiation energy and outputting a voltage pulse signal, a filter shaping module which is used for filtering the voltage pulse signal output by the radiation detector, an amplification module which is used for amplifying the voltage pulse signal filtered by the filter shaping module, an A / D conversion module which is used for sampling the amplified voltage pulse signal and converting the signal into a digital signal, an FPGA data processing module which carries out filtering, data peak searching, multi-channel counting and multi-channel storing on the digital signal output by the A / D conversion module and uploads the counting information of each channel to a user terminal, and a control module which controls the A / D conversion module and the amplification module. According to the multi-channel pulse amplitude analyzer provided by the invention, the production cost can be reduced by simplifying the circuit; the collected voltage pulse signal is digitized; the measurement accuracy of the analyzer is improved; and pulse data are prevented from missed detection.

Description

technical field [0001] The invention relates to the technical field of nuclear radiation detection, in particular to a multi-channel pulse amplitude analyzer. Background technique [0002] In the field of nuclear technology research and application, it is often necessary to measure the energy spectrum of rays. It classifies the pulse signals according to the magnitude of the amplitude and records the number of each type of signal, and draws the obtained data into a spectrum graph to analyze the rays in detail. type and radiation intensity. The nuclear radiation signal has strong randomness and complex waveform. After passing through the multi-pole signal processing circuit, the rising edge of the signal sent to the multi-channel pulse amplitude analyzer is extremely small and the frequency is high. The instrument needs to measure the amplitude of the pulse signal one by one. It may not be missed to ensure the accuracy of the energy spectrum. Existing multi-channel pulse am...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/17
CPCG01T1/17
Inventor 刘小楠姚卫棠朱玉玉
Owner 四川南棠科技有限责任公司
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