A Multi-strip Multi-gap RPC Barrel for Time-of-Flight Measurements
A Multi-strip Multi-gap RPC Barrel for Time-of-Flight Measurements
复制标题
用于飞行时间测量的多带多间隙 RPC 筒
DOI：
10.1016/j.nima.2011.02.076
复制
发表时间：
2011
影响因子：
1.4
通讯作者：
X. Zhang
中科院分区：
文献类型：
--
作者：
M. Kis;M. Ciobanu;I. Deppner;K. Hildenbrand;N. Herrmann;T. I. Kang;Yongsung Kim;P. Koczoń;Y. Leifels;M. Marquardt;M. Petrovici;K. Piasecki;M. Ryu;A. Schüttauf;V. Simion;J. Weinert;X. Zhang
达姆施塔特GSI重离子同步加速器SIS-18的FOPI探测器[1]升级了其飞行时间(ToF)系统的一部分，增加了一个由多带多间隙阻板计数器(MMRPC)制成的新的子探测器外壳(称为MMRPC筒体)。MMRPC桶的有效面积为5m2，由2400个单独的阳极条[2，3]覆盖，两端由定制设计的电子设备[4，5]读出。使用这些多条阳极，我们获得了效率为95%的增强型探测器粒度和优于90ps的TOF分辨率σToF，将带电K介子的识别极限提高到至少1GeV/c。本文报告了MMRPC管的设计、结构和操作特性，并描述了它在第一次实验中的性能。
The FOPI detector [1] at the heavy-ion synchrotron SIS-18 at GSI in Darmstadt has upgraded part of its time-of-flight (ToF) system by adding a new sub-detector shell (called the MMRPC Barrel) that is made out of Multi-strip Multi-gap Resistive-Plate Counters (MMRPCs). The MMRPC Barrel has an active area of 5m2covered by 2400 individual anode strips [2,3] which are read out at both ends by custom-designed electronics [4,5]. With these multi-strip anodes we have obtained an enhanced detector granularity with 95% efficiency and a ToF resolution σToFbetter than 90ps which increases the identification limit for charged kaons up to laboratory momenta of at least 1GeV/c. In this paper we report on the design, construction and operational characteristics of the MMRPC Barrel and describe its performance during the first experiments.