SST-GATE telescope: An innovative dual-mirror prototype for the Cherenkov Telescope Array
2014
The Observatoire de Paris is involved in the Cherenkov Telescope Array (CTA) project by designing and constructing on
the site of Meudon a Small Size Telescope prototype, named SST-GATE, in collaboration with the CHEC team
(Compact High Energy Camera) which is providing the camera. The telescope structure is based on the Schwarzschild-
Couder optical design which has never been adopted before in the design of a ground-based telescope. This concept
allows a larger field of view and cheaper and smaller telescope and camera design with improved performance compared
to the Davies-Cotton design traditionally used in very high energy gamma-ray telescopes.
The SST-GATE telescope has been designed with the prime objectives of being light, versatile and simple to assemble
with a minimal maintenance cost. This papers aims at reviewing the SST-GATE telescope structure from mechanics to
optics along with the control command architecture; several innovative developments implemented within the design are
discussed. Updates of the project status and perspectives are made.
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