【作者】 李正平； 徐超； 陈军宁； 吴瑞生；

【Author】 Li Zheng-ping1 Xu Chao1 Chen Jun-ning1 Wu Rui-sheng2 (1.School of Electronic Science & Technology,Anhui University,Hefei 230039,China 2.Department of Modern Physics,USTC,Hefei 230026,China)

【机构】 安徽大学电子科学与技术学院； 中国科学技术大学近代物理系；

【摘要】 论述了一种泥浆密度测量系统的设计和实现。利用Geant4软件包模拟分析了影响系统测量精度、灵敏度以及放射性污染的各种因数,并在此基础上完成了系统的物理设计,包括放射源的选择和源强的计算以及铅罐的设计。系统最后采用PC兼容的工业控制计算机,利用软件定时采集实现对泥浆密度的实时在线非接触测量。实际测试的结果表明密度测量精度优于1%,测量范围1.00-1.60g/cm3,放射性污染满足国家标准的要求。更多还原

【Abstract】 The design and implementation of aγ-ray mud density meter is presented.We simulated and analyzed the influence of various factor on measure precision,sensitivity and radiation pollution using Geant4 software package.On the basis of simulation,we presented the physical design of density meter,including the selection of radiation source,the calculation of source intensity and design of lead container,and the design of system hardware and software.Experimental result show that the measure precision is better than 1%,the range of measurement is from 1.00g/cm3 to 1.60g/cm3,and the radiation pollution meets national criterion,so the system is safe.更多还原