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SMuK 2023 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 64: Instrumentation XVII

HK 64.2: Talk

Thursday, March 23, 2023, 16:15–16:30, SCH/A.101

Commissioning of the First Gas System Line for the CBM-TRD — •Felix Fidorra for the CBM collaboration — Institut für Kernphysik WWU Münster, Münster, Germany

The Compressed Baryonic Matter (CBM) experiment is a fixed target heavy-ion experiment which is currently under construction at FAIR in Darmstadt. It will explore the QCD phase diagram at high net-baryon densities. The Transition Radiation Detector (TRD) of the CBM experiment will be based on Multi Wire Proportional Chambers (MWPCs) filled with Xe/CO2 85:15 as detector gas. This talk reports on the commissioning of the first regulated line of the future gas system for the CBM-TRD. During operation, the gas flow through the chambers has to be regulated such that the relative pressure in the detector volume stays within -0/+1 mbar. To ensure the gas quality, also continuous monitoring of O2, CO2 and H2O content will be included. A part of the gas system, as, e.g., the main regulation valves, the circulation pump and the PLC layer will be located in a service level above the experiment. The first gas line, including already the final tube lengths and the PLC controls, has been set up in the laboratories in Münster for characterisation of, e.g., the timing characteristics of the pressure control and for commissioning. This work is supported by BMBF grants 05P19PMFC1 and 05P21PMFC1.

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