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.
@article{arxiv.1509.02345,
title = {Development of a SiPM Camera for a Schwarzschild-Couder Cherenkov Telescope for the Cherenkov Telescope Array},
author = {A. N. Otte and J. Biteau and H. Dickinson and S. Funk and T. Jogler and C. A. Johnson and P. Karn and K. Meagher and H. Naoya and T. Nguyen and A. Okumura and M. Santander and L. Sapozhnikov and A. Stier and H. Tajima and L. Tibaldo and J. Vandenbroucke and S. Wakely and A. Weinstein and D. A. Williams},
journal= {arXiv preprint arXiv:1509.02345},
year = {2019}
}
Comments
8 pages, 5 figures, In Proceedings of the 34th International Cosmic Ray Conference (ICRC2015), The Hague, The Netherlands. All CTA contributions at arXiv:1508.05894