Mainz 2022 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 59: Instrumentation XV

HK 59.1: Group Report

Thursday, March 31, 2022, 14:00–14:30, HK-H4

The Silicon Tracking System of the CBM Experiment — •Osnan Maragoto Rodriguez for the CBM collaboration — GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany

The Silicon Tracking System (STS) is the central detector for charged-particle identification and momentum determination in the future CBM experiment. It is designed for tracking up to 1000 charged particles per event in nucleus-nucleus collisions at interaction rates up to 10 MHz. Its futures are a low material budget~2% of radiation length, a single-point resolution of ~30 μm inside 1 Tm magnetic field leading to a momentum resolution better than 2%. The experimental conditions pose demanding requirements in terms of channel density and read-out bandwidth: more than 1.6 million channels will be read out with self-triggering electronics. An online event analysis concept will be applied to provide real-time event building and selection. The test and characterization of detector modules, operated in high-intensity heavy-ion beam from the GSI-SIS18 accelerator, as well as the mechanical design and the cooling concepts are, currently, some of the most important goals of the project. This contribution will bring an overview of the STS detector with emphasis on the current status of the detector modules, their performance with beam-target interactions as part of the FAIR Phase 0 activities, the readout chain and system integration aspects aiming towards the pre-series production phase