Dresden 2013 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 71: Myondetektoren 1

T 71.9: Vortrag

Montag, 4. März 2013, 13:00–13:15, GER-039

A Testing Device for the PANDA 3D Disc DIRC using Cosmic Rays - Design, Construction and Performance — •Daniel Mühlheim, Michael Düren, Klaus Föhl, Avetik Hayrapetyan, Benno Kröck, Yong Liu, Oliver Merle, and Julian Rieke — II.Physikalisches Institut, Justus-Liebig-Universität Gießen

The PANDA-Experiment will be one of the major experiments at the future Facility for Antiproton and Ion Research (FAIR) in Darmstadt. A 3D Disc DIRC is currently designed at the Justus-Liebig-University in Gießen to enable precise particle identification in the forward direction of the PANDA experiment at angles between 5 and 22 degrees. The development of a new PID detector naturally requires extensive tests. In order to be able to perform test measurements of the DIRC prototypes inside the lab without the need of external test beam facilities, a dedicated cosmic test stand has been designed and constructed.

The presented device consists of three layers of scintillator plates and is capable of detecting and tagging cosmic muons which have enough energy to produce Cherenkov light inside the DIRC radiator. The device is able to measure the impact position, angle and time of each cosmic muon that traverses the system. The scintillator plates are read out using digital-SiPMs and conventional PMTs. First results will be reported.