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arXiv · 0907.0865

Development of HPD Clusters for MAGIC-II

R. Orito·E. Bernardini·D. Bose·A. Dettlaff·D. Fink·V. Fonseca·M. Hayashida·J. Hose·E. Lorenz·K. Mannheim·R. Mirzoyan·O. Reimann·T. Y. Saito·T. Schweizer·M. Shayduk·M. Teshima
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Abstract

MAGIC-II is the second imaging atmospheric Cherenkov telescope of the MAGIC observatory, which has recently been inaugurated on Canary island of La Palma. We are currently developing a new camera based on clusters of hybrid photon detectors (HPD) for the upgrade of MAGIC-II. The photon detectors feature a GaAsP photocathode and an avalanche diode as electron bombarded anodes with internal gain, and were supplied by Hamamatsu Photonics K.K. (R9792U-40). The HPD camera with high quantum efficiency will increase the MAGIC-II sensitivity and lower the energy threshold. The basic performance of the HPDs has been measured and a prototype of an HPD cluster has been developed to be mounted on MAGIC-II. Here we report on the status of the HPD cluster and the project of eventually using HPD clusters in the central area of the MAGIC-II camera.

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R. Orito, E. Bernardini, D. Bose, A. Dettlaff, D. Fink, V. Fonseca, M. Hayashida, J. Hose, E. Lorenz, K. Mannheim, R. Mirzoyan, O. Reimann, T. Y. Saito, T. Schweizer, M. Shayduk, M. Teshima. 2009-07-05. Development of HPD Clusters for MAGIC-II. https://arxiv.org/abs/0907.0865

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