Design of multi-channel pulse amplitude analyzer based on linear discharge
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摘要: 多道伽马能谱仪是天然、人工放射性核素测定的必备设备,多道脉冲幅度分析是多道伽马能谱仪的核心,它决定了对核素的分辨能力和分析精度。本文从线性放电法入手,首先介绍了基于线性放电法的多道脉冲幅度分析器的工作原理,给出了分析脉冲幅度和获取能谱道址的方法;其次围绕分析器的8个重要组成部分,详细描述了设计方法,给出了设计依据、设计思路和可实施的方案;最后系统地介绍了多道脉冲幅度分析的工作过程,详细地给出了分析器工作的逻辑时序图,为读者开展此类设计奠定了基础。读者可基于文中给出的工作原理、设计方法和工作逻辑时序图等,再结合现代高科技技术,就可以研制出道宽均匀度好、微分非线性出色、分辨核素能力更强的现代新型多道脉冲分析器,获得能量分辨率更好、测量精度更高的伽马能谱数据,更好地为社会服务。Abstract: Multi-channel gamma-ray spectrometers are necessary for measuring natural and artificial radionuclides. The core of the multi-channel gamma-ray spectrometers is the multi-channel pulse amplitude analysis, which determines the resolution and analysis accuracy of radionuclides. This study introduces the working principle of a multi-channel pulse amplitude analyzer based on linear discharge and describes the methods for analyzing pulse amplitude and obtaining spectrum peaks. Secondly, this study details the design methods of eight important parts of the multi-channel pulse amplitude analyzer, including the design basis, design idea, and feasible schemes. Finally, this study details the logical sequence diagram of the analyzer, laying a foundation for readers to design a multi-channel pulse amplitude analyzer. Using the working principle, design method, and working logic sequence diagram presented in this paper, as well as modern high technology, readers can develop a new type of modern multi-channel pulse analyzer with uniform channel width, excellent differential nonlinearity, and improved resolution of radionuclides, thus better serving the society using gamma-ray spectrum data with higher energy resolution and high measurement accuracy.
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Key words:
- linear discharge /
- pulse amplitude analyzer /
- working principle /
- design method
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