Aug 27 – 31, 2018
LVH, Luisenstraße 58, 10117 Berlin
Europe/Berlin timezone

Construction of a Schwarzschild-Couder telescope as a candidate for the Cherenkov Telescope Array: status and performance of the optical alignment system

Aug 28, 2018, 3:45 PM
LVH, Luisenstraße 58, 10117 Berlin

LVH, Luisenstraße 58, 10117 Berlin

<a href="" target="_blank"><b>LANGENBECK VIRCHOW HAUS</b></a> Luisenstraße 58, 10117 Berlin
Board: GR22
Poster (A0 portrait) Gamma-rays Poster Session and Coffee Break


Mr Andrii Petrashyk (Columbia University)


The 9.7m Schwarzschild-Couder (SC) medium-sized telescope is a candidate for the Cherenkov Telescope Array (CTA). It exploits a novel aplanatic two-mirror optical design to provide a large field of view of 8 degrees and improved angular resolution across the whole field of view compared to single-mirror designs. In addition, the reduced plate scale of the camera allows the use of compact, high quantum efficiency photon detectors, such as silicon photomultipliers, providing an unprecedented spatial sampling of showers. The realization of such an optical design implies the challenging production of large aspherical mirrors and the implementation of a sophisticated custom alignment system capable of achieving submillimeter precision. The construction of a prototype Schwarzschild-Couder telescope (pSCT) started in June 2015 at the Fred Lawrence Whipple Observatory in Southern Arizona and is nearing completion. In this contribution, we report on the design, implementation, and performance of the pSCT optical alignment system.

Primary author

Mr Andrii Petrashyk (Columbia University)

Presentation materials