Münster 2011 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 39: Instrumentierung - Poster

HK 39.8: Poster

Wednesday, March 23, 2011, 14:00–16:00, Foyer Chemie

Prototyping a DIRC detector for the WASA-at-COSY experiment — •Adrian Schmidt, Wolfgang Eyrich, Julia Heimlich, Christoph Adolph, Andreas Teufel, and Liwen Li — Universität Erlangen, Erlangen, Deutschland

The WASA-at-COSY experiment at the Forschungszentrum Jülich provides a nearly 4π detector including a forward spectrometer especially for studies on η and η’ meson decays in proton-proton collisions. Simulations have shown that an additional Detector of Internally Reflected Cherenkov light (DIRC) in front of the Forward Range Hodoscope improves the particle identification and energy resolution significantly.

As a first prototype test has shown the feasibility, a large scale prototype is under construction. We report on the status of the prototyping. Optical performance studies and main characteristics of the favoured photomultiplier tubes will be presented.

supported by German BMBF and FZ Jülich