高计数率MRPC工作稳定性研究

项目名称： 高计数率MRPC工作稳定性研究

项目编号： No.11275108

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 数理科学和化学

项目作者： 王义

作者单位： 清华大学

项目金额： 90万元

中文摘要： 采用低电阻玻璃制成的多气隙电阻板室（MRPC-Multigap Resistive Plate Chamber）具有时间分辨好(<100ps)，效率高（>95%），能承受的粒子计数率高(>25kHz/cm^2)等特点，在许多大型高能物理实验中有广泛应用，德国的FAIR－CBM实验决定采用我们研制的高计数率MRPC建造飞行时间探测器。低电阻玻璃MRPC与普通玻璃MRPC在材料性能，噪声性能,抗辐照性能和瞬态工作性能等方面存在很大差异。本课题紧密结合国内外大科学工程的需求，研究高计数率MRPC的高压稳定性，抗辐照性能和稳态工作点随辐照剂量变化性能，研究MRPC信号传输及串扰性能，对MRPC进行优化设计。这些研究对扩大MRPC技术的应用领域，保证MRPC的优良性能和长期稳定可靠运行，具有重要的科学意义及现实意义。

中文关键词： 多气隙电阻板室；低电阻玻璃；高计数率；辐照效应；

英文摘要： Multi-gap Resistive Plate Chamber (MRPC) developed with low resistive glass has good time resolution (<100ps) and high efficiency (>95%). It can work at very high flux rate(>25kHz/cm^2) and it will be used in many large-scale high energy experiments. Our low resitive glass and high rate MRPC will be adopted by FAIR-CBM to construct time of flight system. Compared with common glass MRPC, the low resistive glass MRPC has big difference in material performance, noise, aging performance and transit response. This project is closely related with the requirement of world big scientific experiment and it is aimed to do research on the stability of high rate MRPC, aging performance and stability working point changing with radiation dosage. We will aslo study on signal transmission and crosstalk and do optilmal design of MRPC. All of these research have very important scienticif and realistic meaning for expanding MRPC usage area and assuring its excellent performanc and long time stability.

英文关键词： MRPC；low resistive glass；high rate；radiation effect；