Development and Quality Control of PMT Modules for the Large-Sized Telescopes of the Cherenkov Telescope Array Observatory
Abstract
The camera of the Large-Sized Telescopes (LSTs) of the Cherenkov Telescope Array Observatory (CTAO) consists of 1855 pixels that are grouped into 265 high-performance photomultiplier tube (PMT) modules. Each module comprises a seven-light-guide plate, seven PMT units, a slow control board, and a readout board with a trigger board. %In this paper we describe The requirements for the PMT modules include various aspects, such as photon detection efficiency, dynamic range, buffer depth, and test pulse functionality. We have developed a high-performance PMT module that fulfills all these requirements. Mass-production and quality control (QC) of modules for all four LSTs of the northern CTAO have been completed. Here we report on the technical details of each element of the module and its performance, together with the methods and results of QC measurements.
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Cite
@article{arxiv.2502.02045,
title = {Development and Quality Control of PMT Modules for the Large-Sized Telescopes of the Cherenkov Telescope Array Observatory},
author = {T. Saito and M. Takahashi and Y. Inome and H. Abe and M. Artero and O. Blanch and J. Becerra González and S. Fukami and D. Hadasch and Y. Hanabata and Y. Hattori and J. Herrera Llorente and K. Ishio and H. Iwasaki and H. Katagiri and K. Kawamura and D. Kerszberg and S. Kimura and T. Kiyomoto and T. Kojima and Y. Konno and Y. Kobayashi and S. Koyama and H. Kubo and J. Kushida and A. López-Oramas and S. Masuda and S. Matsuoka and D. Mazin and D. Nakajima and T. Nakamori and T. Nagayoshi and D. Ninci and K. Nishijima and G. Nishiyama and Y. Nogami and S. Nozaki and M. Ogino and H. Ohoka and T. Oka and S. Ono and A. Okumura and R. Orito and A. Rugliancich and S. Sakurai and N. Sasaki and Y. Sunada and M. Suzuki and K. Tamura and J. Takeda and Y. Terada and M. Teshima and F. Tokanai and Y. Tomono and S. Tsujimoto and Y. Tsukamoto and Y. Umetsu and T. Yamamoto and T. Yoshida},
journal= {arXiv preprint arXiv:2502.02045},
year = {2025}
}
Comments
Published in NIM A