Freiburg 2008 – scientific programme
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EP: Fachverband Extraterrestrische Physik
EP 5: Astrophysics - Poster Session
EP 5.9: Poster
Monday, March 3, 2008, 17:30–19:00, Vorraum KGI-Aula
HPD camera development for the MAGIC project — •Takayuki Saito1, M. Victoria Fonseca2, Masaaki Hayashida1, Eckart Lorenz1,3, Karl Mannheim4, Razmik Mirzoyan1, Maxim Shayduk1,5, Thomas Schweizer1, and Masahiro Teshima1 — 1Max-Planck-Institut für Physik, München, Germany — 2Universidad Complutense, Madrid, Spain — 3ETH, Zurich, Switzerland — 4Universität Würzburg, Germany — 5Institut für Physik, Humboldt-Universität Berlin, Germany
Today the Hybrid Photon Detector (HPD) is one of the few low light level sensors that can provide an excellent single and multiple photoelectron amplitude resolution.
We developed HPDs with a GaAsP photocathode, namely the R9792U-40, together with Hamamatsu photonics. A peak quantum efficiency (QE) exceeds 50% and a pulse width is 2 nsec. In addition, the afterpulsing rate of these tubes is ~300 times lower compared to that of conventional photomultiplier tubes (PMTs).
Here we want to report on the recent progress of the HPD camera development. We also want to discuss the prospects of using it in the MAGIC telescope project.