Bochum 2018 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 52: Poster

HK 52.59: Poster

Thursday, March 1, 2018, 16:30–18:45, Audimax Foyer

A cosmics telescope for the compact GEM-TPC. — •wael alkakhi, markus ball, philipp bielefeldt, jonathan ottnad, dimitri schaab, and bernhard ketzer — Universtät Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, Bonn, Germany

We are setting up a cosmic-ray triggering and tracking telescope for the characterization of a compact GEM-TPC. Such a TPC is currently being developed for a future upgrade of the CBELSA/TAPS experiment at the ELSA facility at Bonn. The setup consists of a trigger hodoscope made up of two planes of four scintillator panels, each read out on both sides by photomultiplier tubes, and four 10× 10 cm² GEM (Gas Electron Multiplier) detectors with 2D strip readout on a movable platform. Applying a programmable trigger matrix to the hodoscopes, we make a coarse selection of cosmic tracks through the TPC. The GEM detectors deliver two space points on each side of the TPC and thus provide a precise external track reference for TPC resolution studies.

The poster will describe the setup, the characterization of the trigger hodoscope, and the status of the GEM detectors.