Bonn 2010 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 36: Postersitzung

HK 36.75: Poster

Mittwoch, 17. März 2010, 14:00–16:00, HG Aula

Development of a measuring setup for focussing elements in a DIRC detector at the WASA-at-COSY experiment — •Julian Jaus, Christoph Adolph, Wolfgang Eyrich, and Adrian Schmidt — Physikalisches Institut IV der Universität Erlangen-Nürnberg

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. In order to increase the number of detected Cherenkov photons the constituent parts of the DIRC have to be optimized. We report on the development and the results of measurements concerning the imaging qualities of the different focussing elements under discussion for the DIRC. Furthermore, we present various types of mirroring methods which have been tested.
supported by German BMBF and FZ-Jülich

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