The HARP resistive plate chambers: Characteristics and physics performance
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- 作者：V. Ammosov ; I. Boyko ; G. Chelkov ; D. Dedovitch ; F. Dydak ; A. Elagin ; V. Gapienko ; M. Gostkin ; A. Guskov ; V. Koreshev ; Z. Kroumchtein ; Yu. Nefedov ; K. Nikolaev ; A. Semak ; Yu. Sviridov ; E. Usenko ; J. Wo
- 关键词：HARP ; Gaseous detectors ; Resistive plate chambers ; RPC
- 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
- 出版年：2009
- 出版时间：1 May 2009
- 年：2009
- 卷：602
- 期：3
- 页码：639-643
- 全文大小：744 K
文摘
The HARP resistive plate chamber (RPC) system was designed for time-of-flight measurement in the large-angle acceptance region of the HARP spectrometer. It comprised 46 four-gap glass RPCs covering an area of . The design of the RPCs, their operation, intrinsic properties, and system performance are described. The intrinsic time resolution of the RPCs is 127 ps leading to a system time-of-flight resolution of 175 ps. It is argued that gross differences between pion and proton timing in multi-gap timing RPCs, reported recently in the literature, do not exist.