Mainz 2012 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 41: Instrumentation

HK 41.5: Vortrag

Donnerstag, 22. März 2012, 18:00–18:15, P 2

The MVD-Prototype readout network — •Borislav Milanovic, Christoph Schrader, Bertram Neumann, Michael Wiebusch, Ingo Fröhlich, Samir Armar-Youcef, and Joachim Stroth — Goethe Universität, Frankfurt

The Micro-Vertex-Detector (MVD) detector will be used in the CBM-Experiment for secondary vertex reconstruction of open charm measurements at large baryonic densities. Recent occupancy studies are indicating data rates of several GByte/s. Moreover, the detector will run as a trigerless system which requires to capture all data at all times. Such huge, continuous data streams demand a cutting edge, fast speed readout system with fully synchronized detector operation. The synchronization of all MVD sensors has been accomplished within few nanoseconds.

The implementation uses a modified version of the HADES-Experiment readout network (TrbNet). The MVD network implements TrbNet as a secure network protocoll for data acquisition, monitoring and slow-control of MVD-Prototype studies. The main difference to HADES is the triggerless data acquisition. Data is pre-processed on-the-fly and allows no large buffers. The network is highly scalable and suitable for the entire MVD station and will also be maintained in the final MVD stage for slow-control and monitoring.

*supported by HIC for FAIR, the GSI Helmholtzzentrum für Schwerionenforschung, BMBF grant 06FY9099I