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Gamma spectrum analysis for in situ automatic monitoring of radioactivity in seawater
Journal of Radioanalytical and Nuclear Chemistry ( IF 1.6 ) Pub Date : 2022-08-05 , DOI: 10.1007/s10967-022-08433-8
Yingying Zhang, Haijie Bi, Bingwei Wu, Da Yuan, Yan Shi, Xiandong Feng

The NaI(Tl) detector has been an important research topic and application in the field of in situ marine radioactive automatic monitoring because of its advantages of low power consumption, low cost, and good efficiency. However, its energy resolution is not high enough. This paper investigated an analytical method: spectrum de-noising, background correction based on the SNIP operator, peak search based on the top-hat transform and peak fitting using Gaussian distribution. Simulation and gamma spectra measured from seawater showed that the established energy spectrum analysis method presents satisfactory automatic analytical ability for identification and quantitatively analysis.



中文翻译:

用于原位自动监测海水中放射性的伽马谱分析

NaI(Tl)探测器具有功耗低、成本低、效率高等优点,一直是原位海洋放射性自动监测领域的重要研究课题和应用。但是,它的能量分辨率不够高。本文研究了一种分析方法:频谱去噪、基于SNIP算子的背景校正、基于顶帽变换的峰值搜索和使用高斯分布的峰值拟合。模拟和从海水中测量的伽马能谱表明,所建立的能谱分析方法具有良好的识别和定量分析的自动分析能力。

更新日期:2022-08-06
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