Heidelberg 2015 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 32: Instrumentation 12
HK 32.2: Talk
Tuesday, March 24, 2015, 17:15–17:30, M/HS4
High resolution MCP photon detectors for the PANDA Endcap Disc DIRC — •Julian Rieke1, Klim Biguenko1, Michael Düren1, Erik Etzelmüller1, Klaus Föhl2, Avetik Hayrapetyan1, Benno Kröck1, Oliver Merle1, and Mustafa Schmidt1 for the PANDA collaboration — 1II. Physikalisches Institut, Justus-Liebig-Universität, Gießen, Deutschland — 2CERN, Genf, Schweiz
The PANDA detector at the future FAIR facility in Darmstadt will require excellent particle identification (PID) to achieve its physics goals. The forward region between 5 and 22 degrees will be instrumented with a novel Disc DIRC detector which utilizes internally reflected Cherenkov light and will provide separation of pions, kaons and protons with momenta up to 4 GeV/c.
The Cherenkov photon readout will be carried out with high resolution microchannel plate photomultiplier tubes (MCP-PMTs). A custom made anode layout with a narrow strip pitch of 0.5 mm will allow the reconstructing of the point of impact of single photons with high precision. The tubes will be read out by a modified version of the TOFPET ASIC. The current status of the prototype testing of the tubes and the ASIC will be presented.