| 新型多条多气隙阻性板探测器的性能测试 |
| |
| 引用本文： | 张雪荧,徐瑚珊,FOPI-RPC工作组.新型多条多气隙阻性板探测器的性能测试[J].原子能科学技术,2008,42(8):765-768. |
| |
| 作者姓名： | 张雪荧 徐瑚珊 FOPI-RPC工作组 |
| |
| 作者单位： | 1. ;中国科学院 ;近代物理研究所，甘肃 ;兰州 730000；2. ;中国科学院 ;研究生院，北京 100049； ;3. ;德国重离子研究中心，德国 ;达姆施塔德 ; 642912 ; |
| |
| 基金项目： | 中国科学院、国家外国专家局创新团队国际伙伴计划，中国科学院方向性项目 |
| |
| 摘 要： | 为提高德国FOPI系统飞行时间的探测本领，运用新型多条多气隙阻性板探测器对FOPI系统进行升级改造。探测器的制作已完成，为保证探测器的质量，对它们进行了一系列的测量和质量确认。测试结果证明，系统的本底计数率分布在0.2Hz/cm2附近，工作高压9.6kV；利用γ射线放射源测试，时间分辨（包括闪烁体的时间分辨）分布在220～280ps之间；采用质子束流测量，其探测效率可达98%以上，时间分辨可达75ps
|
| 关 键 词： | 飞行时间 多条多气隙阻性板探测器 本底计数率 时间分辨 |
| 收稿时间： | 2008-03-24 |
| 修稿时间： | 2008-05-23 |
Measurement of New Type Multi-strip Multi-gap Resistive Plate Chambers |
| |
| ZHANG Xue-ying,XU Hu-shan,FOPI-RPC Collaboration.Measurement of New Type Multi-strip Multi-gap Resistive Plate Chambers[J].Atomic Energy Science and Technology,2008,42(8):765-768. |
| |
| Authors: | ZHANG Xue-ying XU Hu-shan FOPI-RPC Collaboration |
| |
| Affiliation: | 1. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China； 2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China； 3. Gesellschaft für Schwerionenforschung, Darmstadt 642912, Germany ; |
| |
| Abstract: | The production of the multi-strip multi-gap resistive plate chambers for FOPI’s Time of Flight (TOF) upgrade was accomplished. In order to assure the timing performance and quality of all detectors in the mass production, a quality assurance chain for the counters was implemented. First, the high voltage (HV) test was performed to assure its HV stability up to 11 kV (125 kV/cm) and to determine the dark rates of the detectors. Then, the performance of all counters with calibrated electronics was tested using a gamma source and proton beam. For proton beam, the timing resolution of MMRPC can reach to 75 ps, and the efficiency can be better than 98%. |
| |
| Keywords: | Time-of-Flight multi-strip multi-gap resistive plate chamber dark rate timing resolution |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《原子能科学技术》浏览原始摘要信息 |
|
点击此处可从《原子能科学技术》下载全文 |
