The other two projects are dual mirror telescopes of Schwarzschild–Couder design. A single mirror Davies–Cotton telescope (SST-1M) based on silicon photo-multiplier (SiPM) photodetectors and whose camera is described in the paper is one of the proposed designed for the SSTs.
This surface allows for observation of gamma-rays with energy between about 3 and 300 TeV . Footnote 1 About 70 SSTs will be installed in the Southern site, which offers the best view of the galactic plane, and will be spaced at inter-telescope distances between 200–300 m to cover an air shower collecting surface of several square-kilometers. The array will consist of three types of telescopes: large-size telescopes (LSTs), with \(\sim \)24 m reflector diameter and an effective light collection surface of 396 m \(^\) small size telescopes (SSTs), with \(\sim \)4 m reflector diameter. The CTA, the next generation very high energy gamma-ray observatory, is a project to build two arrays of over 100 imaging atmospheric Cherenkov telescopes (IACTs) placed in two sites in the northern and southern hemispheres. In addition, we report on results of laboratory measurements on real scale elements that validate the camera design and show that it is capable of matching the CTA requirements of operating up to high moonlight background conditions. In this paper we review the basic steps that led to the design concepts for the SST-1M camera and the ongoing realization of the first prototype, with focus on the innovative solutions adopted for the photodetector plane and the readout and trigger parts of the camera. Since the SST sub-array will consist of up to 70 telescopes, the challenge is not only to build telescopes with excellent performance, but also to design them so that their components can be commissioned, assembled and tested by industry. The SST-1M will be equipped with a 4 m-diameter segmented reflector dish and an innovative fully digital camera based on silicon photo-multipliers.
The single-mirror small-size telescope (SST-1M) is one of the three proposed designs for the small-size telescopes (SSTs) of the Cherenkov Telescope Array (CTA) project. The European Physical Journal C volume 77, Article number: 47 ( 2017) An innovative silicon photomultiplier digitizing camera for gamma-ray astronomy
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