The CBM Time-of-Flight system

Deppner, I. M.; Herrmann, N.

doi:10.1088/1748-0221/14/09/c09020

Cited by 13 publications

(16 citation statements)

References 15 publications

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“…The difference of the electric field strength of MRPC2 and MRPC3 is motivated by the different gap size. This is confirmed by comic tests and previous spot beam test [13].…”

Section: Analysis and Preliminary Results Of Mcbm Beam Testssupporting

confidence: 86%

mTOF performance during the first main commissioning beam time at mCBM

et al. 2020

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The future Facility for Anti-proton and Ion Research (FAIR), currently in construction in Darmstadt, Germany, is one of the largest research projects worldwide. The Compressed Baryonic Matter (CBM) experiment is one of the main pillars at FAIR, studying the quantum chromodynamics (QCD) phase diagram at high baryon densities with unprecedented interaction rate in heavy ion collisions up to 10 MHz. This requires new data-driven readout chain, new data analysis methods and high-rate capable detector systems. The task of the CBM Time of Flight wall (CBM-TOF) is the charged particle identification. Multi-gap Resistive Plate Chambers (MRPCs) with different rate capabilities will be used at CBM-TOF corresponding regions. To reduce the commissioning time for CBM, a CBM full system test-setup called mini-CBM (mCBM) had been installed and tested with beams at GSI SIS18 facility in 2019. The high-rate MRPC prototypes developed at Tsinghua University, called MRPC2, were selected to be implemented in mTOF modules for mCBM. Additional thin float glass MRPCs from USTC called MRPC3, foreseen for the CBM lower rate region, were also tested in the mCBM experiment. Performance results of the two kinds of MRPCs analyzed by the so called tracking method will be shown.

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“…The difference of the electric field strength of MRPC2 and MRPC3 is motivated by the different gap size. This is confirmed by comic tests and previous spot beam test [13].…”

Section: Analysis and Preliminary Results Of Mcbm Beam Testssupporting

confidence: 86%

mTOF performance during the first main commissioning beam time at mCBM

et al. 2020

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“…The CBM ToF wall [62,63] is currently under development and construction, and it is designed to be composed of MRPC detectors. To achieve hadron identification of momentum of 4 GeV/c, a system time resolution below 80 ps and efficiency above 95% are required.…”

Section: The Cbm-tof Systemmentioning

confidence: 99%

“…3.2.2. High-Rate MRPC Towards the particle flux ranges from 1-5 kHz/cm 2 in the intermediate rate region [63], the double-stack MRPC prototype [26] developed at Tsinghua University has been considered. It is built The high-performance electronics for the whole CBM ToF wall is based on the PADI [69] and the GET4-ASIC chips [70].…”

Section: The Cbm-tof Systemmentioning

confidence: 99%

Multigap Resistive Plate Chambers for Time of Flight Applications

Wang

2020

Applied Sciences

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With the advantages of high-performance, easy to build and relatively low cost, the multigap resistive plate chamber has been arousing broad interests over the last few decades. It has become a new standard technology for the time of flight system in high energy physics experiments. In this article, we will give a description of the structure and the operating principles of the MRPC detector and focus on reviewing the applications on the time of flight system in several famous experiments. The performances, including time resolution and particle identification, are discussed in detail. Some recent advances and points of view for the future development of the next generation MRPC are also outlined.

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“…It consists out of 5 so called M4 CBM full size modules (see right side of Fig. 1) housing 5 MRPC2 (formerly called MRPC3a [6,7]) counter each. Each module has an active area of 152×27 cm 2 and comprises 320 read out channels.…”

Section: Mtof At Mcbmmentioning

confidence: 99%

“…The right side of Figure 1 shows an event display of a high multiplicity Pb on Au event generating 100 hits in mTOF of which 28 tracks could be reconstructed, demonstrating the capability of this facility to test MRPC detectors at high rates in a multi-hit environment and under full counter illumination. During the beam time campaign in March 2020 a chamber housing two MRPC3 prototypes (former MRPC3b [6,9]) equipped with ultra thin float glass electrodes (here called counter 900 and 901) was installed behind the double stack. The aim was to measure the rate capability of these counters which are supposed to be located at the outermost region of the CBM TOF wall [10] where the incident particle flux is below 1 kHz/cm 2 .…”

Section: Mtof At Mcbmmentioning

confidence: 99%

The FAIR Phase 0 program of the CBM TOF

Deppner,

Herrmann

2020

Preprint

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In order to provide particle identification (PID) of charged hadrons at the future highrate Compressed Baryonic Matter (CBM) experiment the TOF group has developed a large-area Time-of-Flight (ToF) wall equipped with Multi-gap Resistive Plate Chambers (MRPC) capable to operate at incident particle fluxes of up to 30 kHz/cm 2 . Prior to its destined operation at the Facility for Antiproton and Ion Research (FAIR) -starting in 2025 -this high-rate timing MRPC technology will be used for physics research at two scientific pillars of the FAIR Phase-0 program: the end-cap TOF upgrade of the STAR experiment at RHIC and the mTOF wall of the mCBM experiment at SIS18. At STAR, the fixed-target program of the Beam Energy Scan II (BES-II) will rely on 108 CBM MRPC detectors for forward PID at trigger rates of up to 2 kHz. At mCBM, high-performance benchmark runs of Lambda-baryon production at top SIS18 energies and CBM design interaction rates of 10 MHz will become feasible with a PID backbone consisting of 25 CBM MRPC detectors. Apart from the physics perspective, these pre-FAIR involvements will help gathering experience in operating the final CBM TOF wall comprising about 1500 MRPC detectors and 110,000 readout channels. The status of the FAIR phase 0 program will be discussed.

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The CBM Time-of-Flight system

Cited by 13 publications

References 15 publications

mTOF performance during the first main commissioning beam time at mCBM

mTOF performance during the first main commissioning beam time at mCBM

Multigap Resistive Plate Chambers for Time of Flight Applications

The FAIR Phase 0 program of the CBM TOF

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