| MRPC-TOF时间性能和刻度方法的研究 |
| |
| 引用本文： | 李亮,邵明,陈宏芳,李澄,唐泽波,董昕,汪晓莲.MRPC-TOF时间性能和刻度方法的研究[J].中国物理 C,2007,31(6):576-580. |
| |
| 作者姓名： | 李亮 邵明 陈宏芳 李澄 唐泽波 董昕 汪晓莲 |
| |
| 作者单位： | 中国科学技术大学近代物理系,合肥230026 |
| |
| 基金项目： | 国家自然科学基金
,
中国科学院知识创新工程项目 |
| |
| 摘 要： | 研制的由28个多气隙电阻板室(MRPC)模块构成飞行时间探测系统, 从2003年以来在RHIC-STAR实验上成功运行并获得了大量的实验数据. 为了深入了解MRPC实际运行中的性能,采用质心能量200GeV的Au-Au对撞的实验数据, 对MRPC-TOF的刻度方法进行了深入研究, 主要包括: (1) 对现有的刻度方法做了进一步的改进;
(2) 对粒子入射角度等因素进行了修正; (3) STAR径迹重建的位置分辨率对MRPC时间分辨率影响. 用改进后的刻度和修正方法, 计算得到MRPC的本征时间分辨率为大约60ps, 与束流实验结果相近.
|
| 关 键 词： | MRPC TOF 时间分辨率 刻度 |
| 收稿时间： | 2006-9-21 |
| 修稿时间： | 2006-09-212006-10-21 |
Study on MRPC-TOF Timing Properties and Calibration Methods |
| |
| LI Liang,SHAO Ming,CHEN Hong-Fang,LI Cheng,TANG Ze-Bo,DONG Xin,WANG Xiao-Lian.Study on MRPC-TOF Timing Properties and Calibration Methods[J].High Energy Physics and Nuclear Physics,2007,31(6):576-580. |
| |
| Authors: | LI Liang SHAO Ming CHEN Hong-Fang LI Cheng TANG Ze-Bo DONG Xin WANG Xiao-Lian |
| |
| Institution: | Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China |
| |
| Abstract: | A prototype Time-of-Flight(TOF)detector,consisting of 28 Multi-gap Resistive Plate Chambers(MRPC), has been successfully operated at RHIC-STAR experiment since 2003.Extensive study on the calibration procedure of the MRPC-TOF is performed in order to better understand MRPC's performance.Improvements and extension on current calibration method are discussed.Furthermore,it has been found that the position resolution of the reconstruc- tion system at STAR has significant impact on the MRPC time resolution.After subtracting this effect,the intrinsic time resolution of MRPC is found to be about 60ps,which is in good agreement to beam test results. |
| |
| Keywords: | MRPC TOF time resolution calibration |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《中国物理 C》浏览原始摘要信息 |
| 点击此处可从《中国物理 C》下载免费的PDF全文 |
|
