Radiation-hard ceramic Resistive Plate Chambers for forward TOF and T0 systems

Akindinov, A.; Dreyer, J.; Fan, Xingming; Kämpfer, B.; Kiselev, S.; Kötte, R.; García, Alejandro Laso; Mal’Kevich, D.; Naumann, L.; Nedosekin, A.; Плотников, В. С.; Stach, D.; Sultanov, R.; Voloshin, K.

doi:10.1016/j.nima.2016.06.076

Cited by 6 publications

(7 citation statements)

References 6 publications

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“…The gap size is 250 µm. More information about the counter design and test beam results can be found in [4][5][6][7]. Above an aperture of 2.5 • glass MRPCs are foreseen.…”

Section: The Cbm Time-of-flight (Tof) Systemmentioning

confidence: 99%

The CBM Time-of-Flight system

Deppner

Herrmann

2019

J. Inst.

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A: The Compressed Baryonic Matter spectrometer (CBM) is a future fixed-target heavy-ion experiment located at the Facility for Anti-proton and Ion Research (FAIR) in Darmstadt, Germany.The key element in CBM providing hadron identification at incident beam energies between 2 and 11 AGeV (for Au-nuclei) will be a 120 m 2 large Time-of-Flight (ToF) wall composed of Multi-gap Resistive Plate Chambers (MRPC) with a system time resolution better than 80 ps. Aiming for an interaction rate of 10 MHz for Au+Au collisions the MRPCs have to cope with an incident particle flux between 0.1 kHz/cm 2 and 100 kHz/cm 2 depending on their location. Characterized by granularity and rate capability the actual conceptual design of the ToF-wall foresees 6 different counter granularities and 4 different counter designs. In order to elaborate the final MRPC design of these counters several heavy-ion in-beam and cosmic tests were performed. In this contribution we present the conceptual design of the TOF wall and in particular discuss performance results of full-size MRPC prototypes.

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“…The gap size is 250 µm. More information about the counter design and test beam results can be found in [4][5][6][7]. Above an aperture of 2.5 • glass MRPCs are foreseen.…”

Section: The Cbm Time-of-flight (Tof) Systemmentioning

confidence: 99%

The CBM Time-of-Flight system

Deppner

Herrmann

2019

J. Inst.

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“…In peripheral and semi-central collisions this task is suggested to be carried out by the Beam Fragmentation T0 Counter (BFTC) assembled of Resistive Plate Chambers (RPC) with ceramic electrodes. A detailed description of the detector may be found in [3]. BFTC, meant to be operated in a harsh environment, with particle fluxes of more than 150 kHz/cm 2 , must be built of radiation-hard materials.…”

Section: Beam Fragmentation T0 Countermentioning

confidence: 99%

Radiation hard ceramic RPC development

Akindinov

Dreyer

Fan

et al. 2017

J. Phys.: Conf. Ser.

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Abstract. We report recent advances in R&D on the Beam Fragmentation and T0 Counter (BFTC) for the CBM experiment, based on RPCs with floating electrodes made of resistive ceramic material. An optimal value of the ceramics bulk resistivity has been determined to be about 5·10 9 Ω·cm. RPCs with such electrodes show even characteristics and stable operation under particle fluxes of up to 150 kHz/cm 2 , with the detection efficiency above 90%.

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“…Important prerequisites of high energy heavy ion experiments are the start-time and the reaction-plane determination. For the CBM Time-of-Flight Wall the use of resistive plate chambers (RPC) for the Beam Fragmentation T 0 Counter (BFTC) with low resistive radiation hard ceramics electrodes and small chess-board like single cells is under consideration [2,3]. This detector should cover the inner solid angle range of the spectrometer with an area of about 120×120 cm 2 in front of the Projectile Spectator Detector.…”

Section: Introductionmentioning

confidence: 99%

A timing RPC with low resistive ceramic electrodes

Sultanov¹,

Akindinov²,

Beyer³

et al. 2019

J. Inst.

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A : For precise start time determination a Beam Fragmentation T 0 Counter (BFTC) is under development for the Time-of-Flight Wall of the Compressed Baryonic Matter Spectrometer (CBM) at the Facility for Antiproton and Ion Research (FAIR) at Darmstadt/Germany. This detector will be located around the beam pipe, covering the front area of the Projectile Spectator Detector. The fluxes at this region are expected to exceed 10 5 cm −2 s −1 . Resistive plate chambers (RPC) with ceramic composite electrodes could be use because of their high rate capabilities and radiation hardness of material. Efficiency ≥ 97 %, time resolution ≤ 90 ps and rate capability ≥ 10 5 cm −2 s −1 were confirmed during many tests with high beam fluxes of relativistic electrons. We confirm the stability of these characteristics with low resistive Si 3 N 4 /SiC floating electrodes for a prototype of eight small RPCs, where each of them contains six gas gaps. The active RPC size amounts 20×20 mm 2 produced on basis of Al 3 O 2 and Si 3 N 4 /SiC ceramics. Recent test results obtained with relativistic electrons at the linear accelerator ELBE of the Helmholtz-Zentrum Dresden-Rossendorf with new PADI-10 Front-end electronic will be presented.

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Radiation-hard ceramic Resistive Plate Chambers for forward TOF and T0 systems

Cited by 6 publications

References 6 publications

The CBM Time-of-Flight system

The CBM Time-of-Flight system

Radiation hard ceramic RPC development

A timing RPC with low resistive ceramic electrodes

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