Heidelberg 2015 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 23: Instrumentation 9
HK 23.7: Talk
Tuesday, March 24, 2015, 16:15–16:30, M/HS4
The PANDA Endcap Disc Dirc and its opto-mechanical system — •Erik Etzelmüller1, Klim Biguenko1, Michael Düren1, Klaus Föhl1,2, Avetik Hayrapetyan1, Benno Kröck1, Oliver Merle1, Julian Rieke1, and Mustafa Schmidt1 for the PANDA collaboration — 1II. Physikalisches Institut, Justus-Liebig-Universität, Gießen, Deutschland — 2CERN, Genf, Schweiz
The physics program of the PANDA detector at the future FAIR facility at GSI requires excellent particle identification. For the Panda forward endcap region a novel detector type called "Disc DIRC" has been designed. It covers the angular range between 5 and 22 degrees and uses internally reflected Cherenkov light in order to separate pions, kaons and protons up to a momentum of 4 GeV/c.
The concept of a Disc DIRC will be explained with an emphasis on the optics which play a major role for the detector design. Different types of optical components have to fulfill a number of requirements to allow a precision measurement. Further challenges arise from the necessity of an exact and robust alignment. Solutions will be presented and discussed along with the possibilities for an in-house quality assurance.