深海原位核探测谱仪软件设计  

Software design of deep-sea in-situ nuclear radiation detector

作　　者：李林航 曹平 袁建辉[2,3] 杨伊 Li Linhang;Cao Ping;Yuan Jianhui(School of Earth and Space Sciences,University of Science and Technology of China,Hefei 230026,China;State Key Laboratory of Particle Detection and Electronics,University of Science and Technology of China,Hefei 230026,China;Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]中国科学技术大学地球和空间科学学院,合肥230026 [2]中国科学技术大学核探测与核电子学国家重点实验室,合肥230026 [3]中国科学技术大学近代物理系,合肥230026

出　　处：《电子测量技术》2022年第16期1-7,共7页Electronic Measurement Technology

基　　金：中科院先导专项A(XDA22020061)项目资助。

摘　　要：深海原位核探测谱仪采集数据时,上位机软件配置和读出谱仪以及显示、保存和分析数据是重要问题。针对深海原位核辐射探测的特点和实际软件需求,设计了集成谱仪控制和读出、数据显示和分析功能的谱仪软件。谱仪读出上,基于MODBUS设计了谱仪通信协议,定义了谱仪工作模式和硬件统一接口,并实现了RS-485和雷电接口的谱仪驱动;数据显示上,设计了基于XAML的谱仪软件界面;数据分析上,基于小波变换和期望最大算法设计了能谱的寻峰拟合与核素识别算法。通过连接深海原位核探测谱仪采集并分析U-Ra平衡源和已知的深海岩石放射样品的方式,对软件功能进行测试。结果表明,软件能够实现谱仪的配置和读出以及数据的显示和分析,数据分析效果好于谱分析软件InterSpec。Detector readout and display and analysis of data are key issues to host computer software.Aiming at features and software demands in deep-sea in-situ nuclear radiation detection,this paper designs a detector software which integrates detector control and readout and display and analysis of data.A protocol based on MODBUS is designed,the work pattern of detector and a unified hardware interface are defined,and drivers for RS-485 and Thunderbolt are implemented in the software for detector readout.User interface is designed by XAML for data display.An algorithm based on wavelet transform and expectation-maximization algorithms for peak finding,fitting,and nuclide identification is designed.By connecting to detector to measure and analyze spectrum of balancedU-Ra source and known radioactive samples from deep sea,the functions of the software are tested.The results shows that the software can stably realize detector configuration and readout,as well as data display and analysis,and has a better analysis result than InterSpec,a spectrum analysis software.

关 键 词：上位机软件设计 深海原位 数据读出 谱分析 寻峰 MVVM 

分 类 号：TP319[自动化与计算机技术—计算机软件与理论]