PoS - Proceedings of Science
Volume 301 - 35th International Cosmic Ray Conference (ICRC2017) - Session Gamma-Ray Astronomy. GA-instrumentation
Prototype 9.7m Schwarzschild-Couder telescope for the Cherenkov Telescope Array: status of the optical system.
D. Nieto Castaño,* T.B. Humensky, P. Kaaret, D. Kieda, M. Limon, A. Petrashyk, D. Ribeiro, J. Rousselle, B. Stevenson, V. Vassiliev, P. Wilcox on behalf of the CTA SCT Project
*corresponding author
Full text: pdf
Pre-published on: August 16, 2017
Published on: August 03, 2018
Abstract
The Cherenkov Telescope Array (CTA) is an international project for a next-generation ground-based gamma ray observatory, aiming to improve on the sensitivity of current-generation experiments by an order of magnitude and provide energy coverage from 30 GeV to more than 300 TeV. The 9.7m Schwarzschild-Couder (SC) candidate medium-size telescope for CTA exploits a novel aplanatic two-mirror optical design that provides a large field of view of 8 degrees and substantially improves the off-axis performance giving better angular resolution across all of the field of view with respect to single-mirror telescopes. The realization of the SC optical design implies the challenging production of large aspherical mirrors accompanied by a submillimeter-precision custom alignment system. In this contribution we report on the status of the implementation of the optical system on a prototype 9.7m SC telescope located at the Fred Lawrence Whipple Observatory in southern Arizona.
DOI: https://doi.org/10.22323/1.301.0815
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