München 2019 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 24: Instrumentation V

HK 24.5: Vortrag

Dienstag, 19. März 2019, 15:00–15:15, HS 11

The free-streaming readout chain for the Silicon Tracking System of the CBM experiment — •Adrian Rodriguez Rodriguez for the CBM collaboration — GSI Helmholtzzentrum für Schwerionenforschung GmbH

The Compressed Baryonic Matter (CBM) experiment at the FAIR facility will explore the QCD phase diagram at very high baryon densities, where a first order phase transition from hadronic to partonic matter as well as a chiral phase transition is expected to occur. The Silicon Tracking System (STS) is its essential tracking component, designed to measure up to 1000 particles in A+A collision at rates up to 10 MHz and to achieve a momentum resolution better than 2% inside a 1 Tm dipole magnetic field. With its 1.8 million readout channels, the STS poses the most demanding requirements regarding bandwidth and density of all CBM detectors. The STS readout chain consists of: (1) detector frontend boards with custom ASICs (STS-XYTER), (2) readout boards (ROB) for data aggregation from many electrical links and conversion to optical data transmission, and (3) FPGA based common readout interface (CRI) for data preprocessing, time slice building and interfacing to slow and fast control. In the framework of the miniCBM campaign at SIS18 in GSI, the STS will deploy a prototype of its readout chain. This opportunity will allow to evaluate detector performance and to test integration with other subsystems under realistic experimental conditions. This presentation aims to show an overview of the development status of the readout components and the first test results of the system.