多丝结构气体探测器研究
Studies on Multi-wire Gaseous Detectors
张春雷 1曹李刚 1黄建微 2张耀锋1
作者信息
- 1. 北京师范大学核科学与技术学院,北京 100875;北京师范大学射线束技术与材料改性教育部重点实验室,北京 100875
- 2. 中国计量科学研究院电离辐射研究所,北京 100013
- 折叠
摘要
多丝结构气体探测器因其具有耐辐射、响应快、灵敏区大、成本低廉、易于建造等优势而被广泛应用于核物理和核技术领域.本工作首先介绍了多丝结构气体探测器的电场计算理论方法,并利用有限元程序ANSYS及探测器模拟程序GARFIELD进行了多丝结构气体探测器漂移区、雪崩放大区的电场优化设计.接着利用GEANT4程序模拟了宇宙射线入射气体探测器的过程,获得了探测器在宇宙μ子入射时对单一事例响应的模拟计算结果,包括脉冲电流、脉冲电压及脉冲波形的积分电荷,并获得了整体的积分电荷统计结果.在此基础上完成了气体探测器的研制,并用于宇宙射线的测试实验,实验结果与模拟结果基本一致.本工作提出的模拟计算方法及实验技术可用于多丝结构气体探测器的优化设计及实验评估.
Abstract
Multi-Wire gaseous detectors have been widely used in the fields of nuclear physics and nuclear technology since they have the advantages of radiation hardness,fast response,large sensitive area,low cost and convenient fabrication.First,the electric field calculation theories for multi-wire gaseous detectors were introduced,and then the electric field calculations and the structure design for the drift region and avalanche region of a multi-wire gaseous detector had been carried out with ANSYS and GARFIELD.Next,the designed detector had been simulated in the case of cosmic ray irradiation with GEANT4,and the output results of current pulses,voltage pulses,the integrated charge for each event and the overall statistic results of the integrated charge were obtained.Furthermore,the multi-wire gaseous detector had been built and was used to measure the cosmic rays.The experiment results agree well with the previous simulation results.The simulation methods and the related experiment technologies in this study can be used to do design optimizations and experiment evaluations for gaseous detectors.
关键词
多丝结构气体探测器/电场计算/探测器模拟/宇宙射线测量Key words
multi-wire gaseous detector/electric field calculations/detector simulations/cosmic ray measurements引用本文复制引用
基金项目
国家自然科学基金资助项目(11605009)
计量与校准技术国防科技重点实验室开放课题(JLKG2022001C003)
出版年
2024
NETL
NSTL
万方数据