A Spectrum Measurement System Based on Software Multi-channel Pulse Amplitude Analyzer

Abstract

The invention discloses an energy spectrum measuring system based on a software multichannel pulse-height analyzer. The energy spectrum measuring system comprises a radiation probe, a high-speed acquisition card and a computer, wherein the radiation probe is connected with the computer through the high-speed acquisition card, the radiation probe outputs radiation analog pulse signals to the high-speed acquisition card, the high-speed acquisition card converts the radiation analog pulse signals into radiation digital pulse signals and sends the radiation digital pulse signals to the computer, an energy spectrum acquisition control module, the software multichannel pulse-height analyzer and an energy spectrum display and analyzing module, which are realized based on software, are built in the computer, and the energy spectrum acquisition control module is connected with the high-speed acquisition card and conducts acquisition control and communication management for the high-speed acquisition card. The software multichannel pulse-height analyzer conduct smooth processing for the radiation digital pulse signals based on the three-point smoothing algorithm, analyzes the amplitude of the radiation digital pulse signals by using the five-point peak searching algorithm, and outputs analysis result data to the energy spectrum display and analyzing module for displaying and storing, thereby realizing the purpose of measuring radiation spectrum.

Description

technical field [0001] The invention relates to the field of radiation measurement, in particular to an energy spectrum measurement system based on a software multi-channel pulse amplitude analyzer. Background technique [0002] Radiation spectrometer is one of the main instruments for measuring natural or artificial radionuclides, and it is widely used in geological survey, environmental monitoring, particle physics and nuclear physics experiments and other fields. [0003] In recent years, radiation spectrometers have developed towards multi-channel, computerized and multi-functional directions. The basic structure of typical energy spectrometers at home and abroad is: gamma energy spectrum detector + dedicated multi-channel pulse amplitude analyzer + computer system, Among them, the multi-channel pulse amplitude analyzer is mainly realized by hardware, and gradually develops in the direction of specialization and digitization; the acquisition control, display and processi...

AI Technical Summary

Problems solved by technology

It is worth noting that with the rapid development of computer technology, software plays a leading role in the instrument system; the updating of computer systems and interfaces leads to the improvement or upgrading of multi-channel pulse amplitude analyzers implemented by hardware, but the multi-channel pulse amplitude analyzer implemented by hardware It is difficult and costly to upgrade the channel pulse amplitude analyzer, which greatly shortens the service life of the radiation spectrometer

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