The GCT camera for the Cherenkov Telescope Array

Anthony M. Brown , A. Abchiche , D. Allan , J. P. Amans , T.P. Armstrong , A. Balzer , D.Berge , C. Boisson

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J.-J. Bousquet M. Bryan G. Buchholtz P.M. Chadwick H. Costantini G. Cotter M.K. Daniel A. De Franco F. De Frondat J.-L. Dournaux D. Dumas G.Fasola S. Funk J. Gironnet J.A. Graham T. Greenshaw O. Hervet N. Hidaka J.A. Hinton J.-M. Huet I. Jegouzo T. Jogler M. Kraus J.S. Lapington P.Laporte J.Lefaucheur S. Markoff T. Melse L. Mohrmann P. Molyneux S.J. Nolan A. Okumura J.P. Osborne R.D.Parsons S. Rosen D. Ross G. Rowell Y. Sato F.Sayede J.Schmoll H. Schoorlemmer M.Servillat H.Sol V.Stamatescu M. Stephan R. Stuik J. Sykes H. Tajima J. Thornhill L. Tibaldo C. Trichard J.Vink J.J.Watson R.White N.Yamane A.Zech A.Zink J. Zorn (CTA Consortium)

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keywords cameratelescopecherenkovfirstarraychec-mpixelsprototype

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The Gamma-ray Cherenkov Telescope (GCT) is proposed for the Small-Sized Telescope component of the Cherenkov Telescope Array (CTA). GCT's dual-mirror Schwarzschild-Couder (SC) optical system allows the use of a compact camera with small form-factor photosensors. The GCT camera is ~0.4 m in diameter and has 2048 pixels; each pixel has a ~0.2 degree angular size, resulting in a wide field-of-view. The design of the GCT camera is high performance at low cost, with the camera housing 32 front-end electronics modules providing full waveform information for all of the camera's 2048 pixels. The first GCT camera prototype, CHEC-M, was commissioned during 2015, culminating in the first Cherenkov images recorded by a SC telescope and the first light of a CTA prototype. In this contribution we give a detailed description of the GCT camera and present preliminary results from CHEC-M's commissioning.

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The GCT camera for the Cherenkov Telescope Array

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