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19 April 2024

» arxiv » 1509.2345

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Development of a SiPM Camera for a Schwarzschild-Couder Cherenkov Telescope for the Cherenkov Telescope Array
A. N. Otte ; J. Biteau ; H. Dickinson ; S. Funk ; T. Jogler ; C. A. Johnson ; P. Karn ; K. Meagher ; H. Naoya ; T. Nguyen ; A. Okumura ; M. Santander ; L. Sapozhnikov ; A. Stier ; H. Tajima ; L. Tibaldo ; J. Vandenbroucke ; S. Wakely ; A. Weinstein ; D. A. Williams ; CTA Consortium ;
Date:	8 Sep 2015
Abstract:	We present the development of a novel 11328 pixel silicon photomultiplier (SiPM) camera for use with a ground-based Cherenkov telescope with Schwarzschild-Couder optics as a possible medium-sized telescope for the Cherenkov Telescope Array (CTA). The finely pixelated camera samples air-shower images with more than twice the optical resolution of cameras that are used in current Cherenkov telescopes. Advantages of the higher resolution will be a better event reconstruction yielding improved background suppression and angular resolution of the reconstructed gamma-ray events, which is crucial in morphology studies of, for example, Galactic particle accelerators and the search for gamma-ray halos around extragalactic sources. Packing such a large number of pixels into an area of only half a square meter and having a fast readout directly attached to the back of the sensors is a challenging task. For the prototype camera development, SiPMs from Hamamatsu with through silicon via (TSV) technology are used. We give a status report of the camera design and highlight a number of technological advancements that made this development possible.
Source:	arXiv, 1509.2345
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