Frankfurt 2014 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 14: Instrumentierung
HK 14.3: Vortrag
Montag, 17. März 2014, 17:15–17:30, HZ 8
Performance of the PANDA Barrel DIRC Prototype — •Roman Dzhygadlo1, Andreas Gerhardt1, Grzegorz Kalicy1,2, Harphool Kumawat3, Dorothee Lehmann1, Maria Patsyuk1,2, Klaus Peters1,2, Georg Schepers4, Carsten Schwarz1, Jochen Schwiening1, and Marko Zühlsdorf1,2 for the PANDA collaboration — 1GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt — 2Goethe-Universität, Frankfurt — 3Bhabha Atomic Research Centre, Mumbai — 4FAIR Facility for Antiproton and Ion Research in Europe GmbH, Darmstadt
Hadronic particle identification in the barrel region of the PANDA experiment at the new Facility for Antiproton and Ion Research in Europe (FAIR) at GSI, Darmstadt, will be provided by a DIRC (Detection of Internally Reflected Cherenkov light) counter. To test the performance of the barrel DIRC as well as different design options a prototype was build and successfully tested using a hadronic particle beam at CERN in 2012. The prototype comprised a radiator bar, focusing lens, mirror, and compact prism-shaped expansion volume made of solid synthetic fused silica. An array of micro-channel plate photomultiplier tubes measured the location and arrival time of the Cherenkov photons with sub-nanosecond resolution. The performance of the prototype during the beam test will be presented including measurements of the photon yield and the Cherenkov angle resolution.
Work supported by EU FP7 grant, contract number 227431, HadronPhysics2, and the Helmholtz Graduate School for Hadron and Ion Research HGS-HIRe.