München 2006 – wissenschaftliches Programm
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HK: Physik der Hadronen und Kerne
HK 21: Postersitzung
HK 21.63: Poster
Dienstag, 21. März 2006, 15:30–17:00, P
Towards a DIRC-Detector of the PANDA Experiment at GSI — •Georg Schepers1, Klaus Götzen1, Klaus Peters1,2, and Carsten Schwarz1 — 1GSI, Darmstadt — 2JWG Universität Frankfurt
The PANDA Experiment aimes for high standard hadron spectroscopy using the antiproton source of the FAIR facility planed at GSI. Situated in the barrel section of the fixed target experiment the DIRC (Detection of Internally Reflected Cherenkov photons) detector provides a positive kaon identification and serves for the destinction of gammas and relativistic charged particles. As a first attempt a scaled copy of the BABAR DIRC[1] from quarz glass is envisaged. However, at the same time R&D is done to replace the two dimensional photon detector by 1.) the readout of only one dimension plus the timing imformation of the detector as in the TOP-project (Belle)[2] or 2.) the usage of a small mirror at the end of each radiator and a APD array working in Geiger mode [3]. The first option demands a timing resolution in the order of 100 ps. Material tests also with acrylic glass bars as well as quality control of the radiator surfaces and edges are performed at GSI.
[1] G. Vasileidis, Nucl. Inst. Meth. A384, 175 (1996)
[2] Y. Enari et al., Nucl. Inst. Meth. A494, 430 (2002)
[3] R. Wilson, Nucl. Inst. Meth. A433, 487 (1999)
We acknowledge the support of the European Community RESEARCH INFRASTRUCTURES ACTION under the FP6 programme: Structuring the European Research Area - Specific Support Action - DESIGN STUDY (contract 515873 - DIRACsecondary-Beams)