A glass type multistrip-MRPC prototype for the low rate region of the CBM time-of-flight wall

• Verfasst von: Deppner, Ingo Martin [VerfasserIn]
• Verfasst von: Herrmann, Norbert [VerfasserIn]
• Titel: A glass type multistrip-MRPC prototype for the low rate region of the CBM time-of-flight wall
• Mitwirkende: Loizeau, Pierre-Alain
• Mitwirkende: Wisniewski, Krzysztof
• Verf.angabe: I Deppner, N Herrmann, M Ciobanu, J Frühauf, M Kiš, P -A Loizeau, K Wisniewski, C Xiang
• E-Jahr: 2012
• Jahr: October 2012
• Umfang: 8 S.
• Fussnoten: Gesehen am 10.12.2018
• Titel Quelle: Enthalten in: Journal of Instrumentation
• Ort Quelle: London : Inst. of Physics, 2006
• Jahr Quelle: 2012
• Band/Heft Quelle: 7(2012), 10, Artikel-ID P10008
• ISSN Quelle: 1748-0221
• DOI: doi:10.1088/1748-0221/7/10/P10008
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1585021148

Abstract

The Compressed Baryonic Matter spectrometer (CBM) is expected to be operational in the year 2018 at the Facility for Anti-proton and Ion Research (FAIR) in Darmstadt, Germany. The key element providing hadron identification at incident energies between 2 and 10 AGeV is a Time-of-Flight (ToF) wall covering the polar angular range from 2.5◦-25◦ and full azimuth. The necessary particle identification capabilities require a 80 ps system time resolution at high efficiency and, simultaneously, a rate capability of up to 25 kHz/cm2. The existing conceptual design foresees a 120 m2 ToF-wall composed of Multi-gap Resistive Plate Chambers (MRPC) which is subdivided in five rate depending concentric arranged regions named A to E where A is the area having fluxes below 1 kHz/cm2 in average. For this region A which covers approximately 55% of the total area we developed a Multistrip-MRPC containing float glass as resistive electrode material. In this paper we present the design of this prototype and in particular results obtained during in beam tests at GSI/SIS18 at Darmstadt and COSY at Ju¨lich.