The Cherenkov Telescope Array (CTA) is a forthcoming ground-based observatory for very-high-energy gamma rays. CTA will consist of two arrays of imaging atmospheric Cherenkov telescopes in the Northern and Southern hemispheres, and will combine telescopes of different types to achieve unprecedented performance and energy coverage. The Gamma-ray Cherenkov Telescope (GCT) is one of the small-sized telescopes proposed for CTA to explore the energy range from a few TeV to hundreds of TeV with a field of view ≳ 8° and angular resolution of a few arcminutes. The GCT design features dual-mirror Schwarzschild-Couder optics and a compact camera based on densely-pixelated photodetectors as well as custom electronics. In this contribution we provide an overview of the GCT project with focus on prototype development and testing that is currently ongoing. We present results obtained during the first on-telescope campaign in late 2015 at the Observatoire de Paris-Meudon, during which we recorded the first Cherenkov images from atmospheric showers with the GCT multi-anode photomultiplier camera prototype. We also discuss the development of a second GCT camera prototype with silicon photomultipliers as photosensors, and plans toward a contribution to the realisation of CTA.
|Original language||English (US)|
|Title of host publication||High Energy Gamma-Ray Astronomy|
|Subtitle of host publication||6th International Meeting on High Energy Gamma-Ray Astronomy|
|Editors||Felix A. Aharonian, Felix A. Aharonian, Frank M. Rieger, Werner Hofmann|
|Publisher||American Institute of Physics Inc.|
|State||Published - Jan 4 2017|
|Event||6th International Symposium on High Energy Gamma-Ray Astronomy - Heidelberg, Germany|
Duration: Jul 11 2016 → Jul 15 2016
|Name||AIP Conference Proceedings|
|Other||6th International Symposium on High Energy Gamma-Ray Astronomy|
|Period||7/11/16 → 7/15/16|
Bibliographical notePublisher Copyright:
© 2017 Author(s).