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HK: Fachverband Physik der Hadronen und Kerne

HK 29: Instrumentation VIII

HK 29.3: Group Report

Tuesday, March 12, 2024, 18:15–18:45, HBR 19: C 5a

Production status of the CBM Transition Radiation Detector — •Philipp Kähler for the CBM collaboration — Institut für Kernphysik, Universität Münster

The Transition Radiation Detector (TRD) in the CBM experiment at FAIR will provide electron identification, enabling the study of the hot and dense medium created in heavy-ion collisions via the measurement of di-electrons at intermediate masses. Furthermore, the TRD will serve as an intermediate tracking station and, moreover, augments the identification of light nuclei for the hypernuclei programme of CBM.

We report on the production process of the high-rate multi-wire proportional chambers for the TRD, which has been started with a first batch of 32 MWPCs with outer dimensions of 960 mm x 960 mm, each equipped with 3 456 read-out channels on the segmented cathode pad-plane. The complete TRD will feature 216 MWPCs with 329 728 channels in total. First-of-series test results will be shown and discussed.

This work is supported by BMBF grants 05P21RFFC1 and 05P21PMFC1.

Keywords: CBM; FAIR; TRD; MWPC; High-rate