Feb 18 – 22, 2019
Vienna University of Technology
Europe/Vienna timezone

Status and Performance of CBM-TOF systems

Not scheduled
Vienna University of Technology

Vienna University of Technology

Gusshausstraße 27-29, 1040 Wien
Board: 18
Poster Gaseous Detectors Poster Session A


Ingo-Martin Deppner (Physikalisches Institut der Universität Heidelberg)


The Compressed Baryonic Matter (CBM) experiment aims at exploring the QCD phase diagram at large baryon densities with heavy ion beams in the beam energy range from 2 A GeV to 11 A GeV at the SIS100 accelerator of FAIR/GSI. For charged particle identification that is required by many observables that are sensitive to the phase structure like collective flow, phase space population of rare hyperons, fluctuations of conserved quantities, … a high performance Time-of-Flight (TOF) wall with a granularity of about 100.000 channels and a system timing resolution of better than 80 ps is being built.. The system comprises Multi-gap Resistive Plate Chambers (MRPCs) in multi-strip configuration with free-streaming readout enabling the measurement up to a flux of 20 kHz/cm$^2$ on the detector surface.
As part of the CBM-FAIR phase 0 program about 8% of the CBM TOF wall has been installed in the forward hemisphere (1.0 < $\eta$ < 1.5) of the STAR experiment at RHIC/BNL (called eTOF) during the beam energy scan (BES II) campaign planned for 2019/2020. Another 5 modules (1600 channels) are installed at miniCBM at SIS18/GSI (also part of FAIR phase 0).
The status, performance and QA of both TOF detector systems will be presented.

Primary authors

Ingo-Martin Deppner (Physikalisches Institut der Universität Heidelberg) Norbert Herrmann (Univ. Heidelberg)

Presentation materials

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