Dresden 2013 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 52: Poster - Instrumentation I

HK 52.13: Poster

Mittwoch, 6. März 2013, 16:45–19:00, HSZ 2.OG

Study for the online data processing with the MVD prototype* — •Qiyan Li, Samir Amar-Youcef, Michael Deveaux, Christian Muentz, and Joachim Stroth — Goethe-Universität,Frankfurt

The CBM experiment at FAIR will explore the structure and properties of nuclear matter under extreme conditions namely highest net baryon densities. As the one subdetector of the CBM experiment, the Micro-Vertex-Detector (MVD) will provide precise vertexing to identify the short-lived open charm particles.

Because of the expected high hit densities, the DAQ system of the MVD will have a heavy burden with data transmission and storage. To reduce it two essential aspects are considered, on-chip zero suppression and online cluster finding and classification. The latter will be implemented on FPGAs, which are arranged directly after the front-end electronics.

As a first approach into that direction the MVD prototype was tested at CERN SPS with high energy pion beams. The setup was chosen, that the device under test was referenced with 4 alike additional stations. All stations were equipped with thinned MIMOSA-26 AHR CMOS sensors. This contribution discusses the dedicated cluster finding algorithm and the investigation of cluster shapes at various experimental conditions.

*supported by HIC for FAIR,the GSI Helmholtzzentrum fär Schwerionenforschung, BMBF grants 06FY9100I and 06FY7114I, IPHC,Strasbourg.