PoS - Proceedings of Science
Volume 444 - 38th International Cosmic Ray Conference (ICRC2023) - Gamma-ray Astronomy (GA)
The next generation cameras for the Large-Sized Telescopes of the Cherenkov Telescope Array Observatory
M. Heller*, J. Altet, X. Aragones, J.A. Barrio, M. Bellato, E. Bernasconi, A. Biland, O. Blanch, L. Burmistrov, E. Charbon, M. Dalchenko, L. Giangrande, S. Gòmez, D. Hoffmann, G. Martínez, M. Mariotti, D. Matteo, T. Montaruli, A. Okumura, A. Pérez Aguilera, R. Manera, R. Rando, T. Saito, L.Á. Tejedor and Y. Uzun
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Pre-published on: July 25, 2023
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The latest generation of silicon photomultipliers (SiPM) offers twice as much sensitivity to Cherenkov light observed at ground level when compared to photomultipliers.
Their use for imaging atmospheric Cherenkov telescopes is increasing, from the FACT telescope, the pioneer, to the small-sized telescopes of the Cherenkov Telescope Array (CTA) or the LHAASO WFCTA camera. The robustness of the SiPMs represents a unique opportunity to ensure long-term operation with low maintenance.
In this work, we present the latest developments and performance of a SiPM camera aiming at upgrading the large-sized telescopes (LST) cameras of CTA.
The SiPM camera, equipped with 0.05 deg pixels, provides images of improved resolution for better feature extraction. The increase in the number of pixels has driven the development of low-power front-end electronics whose design is presented in this work. We also present the fully digital readout architecture of the proposed camera, which will enable the implementation of novel triggering algorithms based on artificial intelligence.
DOI: https://doi.org/10.22323/1.444.0740
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