Camera calibration of the first Large-Sized Telescope of the Cherenkov Telescope Array Observatory
The Cherenkov Telescope Array Observatory (CTAO), a forthcoming very-high-energy gamma-ray facility, will use the Imaging Atmospheric Cherenkov Technique (IACT) to achieve unprecedented energy and angular resolution from 20 GeV to 300 TeV. Large-Sized Telescopes (LSTs) are crucial for the low-energy range. This paper details the calibration tools and methods developed for the first LST (LST-1) to ensure the precise conversion of photomultiplier tube signals and accurate photon timing, vital for the reconstruction of extensive air showers. This framework supports LST-1’s early science and will be applied to future LSTs.
Authors
- J. Sitarek (ORCID: https://orcid.org/0000-0002-1659-5374)
- Paweł Gliwny
- Maximilian Linhoff
- Takayuki Saito (ORCID: https://orcid.org/0000-0002-9898-1120)
- Yukiho Kobayashi (ORCID: https://orcid.org/0009-0005-5680-6614)
- S. Nozaki (ORCID: https://orcid.org/0000-0002-6246-2767)
- S. Sakurai (ORCID: https://orcid.org/0000-0001-7427-4520)
- M. Iori (ORCID: https://orcid.org/0000-0002-6349-0380)
- Michele Palatiello
- F. Cassol-Brunner
Institutions
- Centre National de la Recherche Scientifique (FR)
- TU Dortmund University (DE)
- Aix-Marseille Université (FR)
- Astronomical Observatory of Rome (IT)
- University of Łódź (PL)
- Centre de physique des particules de Marseille (FR)
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma I (IT)
- The University of Tokyo (JP)
- Sapienza University of Rome (IT)
Publication Details
- Journal
- Astroparticle Physics
- Published
- 2025-11-20
- DOI
- https://doi.org/10.1016/j.astropartphys.2025.103189
- Primary Topic
- Astrophysics and Cosmic Phenomena
- Type
- article
- Field-Weighted Citation Impact
- 0.00