SMuK 2021 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 8: Instrumentation III

HK 8.1: Group Report

Tuesday, August 31, 2021, 14:00–14:30, H1

The Silicon Tracking System of the CBM experiment: towards series production — •Adrian Rodriguez Rodriguez for the CBM collaboration — GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany

The Silicon Tracking System (STS) is the central detector for charged-particle identification and momentum determination in the future CBM experiment at the new FAIR accelerator facility. It is designed to measure up to 1000 charged particles in nucleus-nucleus collision at interaction rates up to 10 MHz, achieve a momentum resolution better than 2% inside 1 Tm magnetic field, and identify complex particle decays topologies. The STS comprises eight tracking stations equipped with double-sided silicon microstrip sensors. Two million channels are read out with self-triggering electronics, matching the experiment’s data streaming and online event analysis concept. The STS functional building block is the detector module. It consists of a sensor, micro-cables, and two front-end electronics boards, carrying the custom-developed readout ASIC. The test and characterization of the first detector modules, part of the pre-series production, have been performed in the laboratory and the beamline as part of the FAIR Phase 0 activities. This presentation shows an overview of the STS project and its focus towards the series production; special emphasis is drawn to the quality assurance and current status of the module components, readout chain, and system integration.