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Title: Inauguration and first light of the GCT-M prototype for the Cherenkov telescope array
Authors: Watson, J. J.
De Franco, A.
Abchiche, A.
Allan, D.
Amans, J.-P.
Armstrong, T. P.
Balzer, A.
Berge, D.
Boisson, C.
Bousquet, J. J.
Brown, A. M.
Bryan, M.
Buchholtz, G.
Chadwick, P. M.
Costantini, H.
Cotter, G.
Daniel, M. K.
De Frondat, F.
Dournaux, J. L.
Dumas, D.
Ernenwein, J. P.
Fasola, G.
Funk, S.
Gironnet, J.
Graham, J. A.
Greenshaw, T.
Hervet, O.
Hidaka, N.
Hinton, J. A.
Huet, J. M.
Jegouzo, I.
Jogler, T.
Kraus, M.
Lapington, J. S.
Laporte, P.
Lefaucheur, J.
Markoff, S.
Melse, T.
Mohrmann, L.
Molyneux, P.
Nolan, S. J.
Okumura, A.
Osborne, J. P.
Parsons, R. D.
Rosen, S.
Ross, D.
Rowell, G.
Rulten, C. B.
Sato, Y.
Sayède, F.
Schmoll, J.
Schoorlemmer, H.
Servillat, M.
Sol, H.
Stamatescu, V.
Stephan, M.
Stuik, R.
Sykes, J.
Tajima, H.
Thornhill, J.
Tibaldo, L.
Trichard, C.
Vink, J.
White, R.
Yamane, N.
Zech, A.
Zink, A.
Zorn, J.
First Published: 4-Jan-2017
Publisher: AIP Publishing
Citation: AIP Conference Proceedings, 2017, 1792(1), 080006
Abstract: The Gamma-ray Cherenkov Telescope (GCT) is a candidate for the Small Size Telescopes (SSTs) of the Cherenkov Telescope Array (CTA). Its purpose is to extend the sensitivity of CTA to gamma-ray energies reaching 300 TeV. Its dual-mirror optical design and curved focal plane enables the use of a compact camera of 0.4 m diameter, while achieving a field of view of above 8 degrees. Through the use of the digitising TARGET ASICs, the Cherenkov flash is sampled once per nanosecond contin-uously and then digitised when triggering conditions are met within the analogue outputs of the photosensors. Entire waveforms (typically covering 96 ns) for all 2048 pixels are then stored for analysis, allowing for a broad spectrum of investigations to be performed on the data. Two prototypes of the GCT camera are under development, with differing photosensors: Multi-Anode Photomultipliers (MAPMs) and Silicon Photomultipliers (SiPMs). During November 2015, the GCT MAPM (GCT-M) prototype camera was integrated onto the GCT structure at the Observatoire de Paris-Meudon, where it observed the first Cherenkov light detected by a prototype instrument for CTA.
DOI Link: 10.1063/1.4969027
ISSN: 0094-243X
ISBN: 9780735414563
eISSN: 1551-7616
Version: Post-print
Status: Peer-reviewed
Type: Conference Paper
Rights: Copyright © 2017, AIP Publishing. Deposited with reference to the publisher’s open access archiving policy.
Appears in Collections:Published Articles, Dept. of Physics and Astronomy

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