Bochum 2018 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 14: Instrumentation VI

HK 14.2: Gruppenbericht

Montag, 26. Februar 2018, 17:00–17:30, HZO 90

Towards the CBM-MVD: The Group Report — •Michal Koziel — Goethe-Universität, Frankfurt

The Compressed Baryonic Matter Experiment (CBM) is one of the core experiments of the future FAIR facility. It will explore the phase diagram of strongly interacting matter in the regime of high net baryon densities with numerous probes, among them open charm. The Micro Vertex Detector (MVD) will contribute to the secondary vertex determination on a 10 µ m scale, background rejection in dielectron spectroscopy and reconstruction of weak decays of multi-strange baryons. The detector comprises up to four stations placed next to the target in vacuum. The stations are populated with 50 µ m thin, highly-granular customized Monolithic Active Pixel Sensors (called "MIMOSIS"), featuring a spatial resolution of <5 µ m, a readout speed of less than 10 µs/frame, a radiation tolerance of >10¹³n_eq/cm² and 3 Mrad. This contribution will summarize all recent activities towards constructing the MVD, that involve in particular CMOS sensor development, characterization and read-out, integration and cooling aspects as well as MVD performance simulations.

This work has been supported by BMBF (05P15RFFC1), GSI and HIC for FAIR.