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Abstract <p>Since spring 2022, three atmospheric Cherenkov gamma-ray telescopes (AGT) have been operating as part of the TAIGA experiment at the MSU-ISU Astrophysical Complex in the Tunka Valley (Republic of Buryatia), and the fourth telescope will be soon commissioned. Such telescopes are the main instruments of ground-based high-energy gamma-ray astronomy, allowing events to be separated from gamma-quanta and events from charged particles of cosmic rays. The four existing telescopes are based on the design of the HEGRA telescopes, which were developed in the 1980s and are currently obsolete in terms of design solutions. The article presents an overview of the technical modernization of the fifth Cherenkov telescope. It shows the possibility of replacing certain components of the telescope with finished products manufactured in series, with specified quality indicators, warranty and assigned resources and service life. The changes introduced are also described not only for the mechanical part of the telescope, but also for its subsystems, in particular the mirror heating system and light-protective hoods.</p>

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Upgrade of the Fifth Atmospheric Cherenkov Telescope

  • 期刊论文

  • 发表日期：

    2025年6月27日

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  • A. V. Shaikovskiy,
  • A. N. Borodin,
  • D. P. Zhurov

摘要

Abstract

Since spring 2022, three atmospheric Cherenkov gamma-ray telescopes (AGT) have been operating as part of the TAIGA experiment at the MSU-ISU Astrophysical Complex in the Tunka Valley (Republic of Buryatia), and the fourth telescope will be soon commissioned. Such telescopes are the main instruments of ground-based high-energy gamma-ray astronomy, allowing events to be separated from gamma-quanta and events from charged particles of cosmic rays. The four existing telescopes are based on the design of the HEGRA telescopes, which were developed in the 1980s and are currently obsolete in terms of design solutions. The article presents an overview of the technical modernization of the fifth Cherenkov telescope. It shows the possibility of replacing certain components of the telescope with finished products manufactured in series, with specified quality indicators, warranty and assigned resources and service life. The changes introduced are also described not only for the mechanical part of the telescope, but also for its subsystems, in particular the mirror heating system and light-protective hoods.