Simulation of a new hybrid MPGD with improved time resolution and decreased discharge probabilities using Garfield＋＋  

作　　者：Sheng-Ying Zhao Hui-Yin Wu Bi-Tao Hu Hui-Rong Qi Yi Zhang 

机构地区：[1]School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China [2]State Key Laboratory of Particle Detection and Electronics,Beijing 100049, China

出　　处：《Nuclear Science and Techniques》2017年第7期73-78,共6页核技术（英文）

基　　金：Supported by the National Natural Science Foundation of China(Nos.11135002,11275235,11405077 and 11575073)

摘　　要：In this work,a new hybrid MPGD consisting of two GEM foils and a metallic mesh was proposed.Based on the simulation studies,this design can significantly reduce the rise time of signal and has a better performance in respect of particle identification compared with the triple GEM design.The gain with various voltages setting was computed in order to provide us references for future experiment.The simulation results also show that the time and space resolution compared to the triple GEM detector are also improved.The time and space resolution of hybrid detector with Ar/CO_2(70/30) and Ar/isobutane(95/5) were investigated for various drift electric field intensities.This new hybrid detector shows excellent potential for both fundamental research and imaging applications.In this work,a new hybrid MPGD consisting of two GEM foils and a metallic mesh was proposed.Based on the simulation studies,this design can significantly reduce the rise time of signal and has a better performance in respect of particle identification compared with the triple GEM design.The gain with various voltages setting was computed in order to provide us references for future experiment.The simulation results also show that the time and space resolution compared to the triple GEM detector are also improved.The time and space resolution of hybrid detector with Ar/CO2（70/30） and Ar/isobutane（95/5） were investigated for various drift electric field intensities.This new hybrid detector shows excellent potential for both fundamental research and imaging applications.

关 键 词：时间分辨率 混合 概率 放电 模拟 仿真结果 基础研究 空间分辨率 

分 类 号：O572.212[理学—粒子物理与原子核物理]