München 2006 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 21: Postersitzung

HK 21.13: Poster

Dienstag, 21. März 2006, 15:30–17:00, P

Large Area APDs for the PANDA EMC — •Andrea Wilms — GSI Darmstadt

The Electromagnetic Calorimeter (EMC) of the 4π detector PANDA will consist of nearly 22,000 scintillator crystals. The PANDA detector will be installed at the antiproton storage ring of the proposed facility for antiproton and ion research (FAIR) in Darmstadt. The crystals of the EMC will be read out via large area avalanche photodiodes (LAAPDs). For this purpose rectangular LAAPDs with an active area of 10 × 10 mm² have been developed in cooperation with different APD manufacturers. The properties of these devices were measured at CERN and first irradiation tests with protons have been done at KVI Groningen. The results of these measurements done with different APD types and at different temperatures will be presented. This work is supported by the EU Integrated Infrastructure Initiative Hadron Physics Project under contract number RII3-CT-2004-506078 and by Gesellschaft für Schwerionenforschung mbH.