Commissioning of the camera of the first Large Size Telescope of the Cherenkov Telescope Array

the CTA LST project

Commissioning of the camera of the first Large Size Telescope of the Cherenkov Telescope Array

the CTA LST project

University of Tokyo
Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT)
The Barcelona Institute of Science and Technology
IPARCOS-UCM (Instituto de Física de Partículas y del Cosmos)
Aix-Marseille Université
Sezione di Roma
Division of Physics and Astronomy
Max-Planck-Institut für Physik
Yamagata University
Nagoya University
and Physics University of Udine
LTHE (UMR 5564 CNRS/IRD/Université de Grenoble)
Saitama University
Konan University
Ibaraki University
University of Barcelona
Instituto de Astrofísica de Andalucía-CSIC
Osservatorio Astronomico di Roma
INFN Sezione di Napoli
Université Paris-Saclay
Universität Hamburg
INAF Istituto di Astrofisica Spaziale e Fisica Cosmica, Bologna
Centro Brasileiro de Pesquisas Fisicas
University of Padova
Research Unit; CIBERNED and Universidad de La Laguna
University of Dortmund
Saha Institute of Nuclear Physics
INFN Sezione di Catania
INAF - Istituto di Astrofisica e Planetologia Spaziali (IAPS)
University of Geneva
Palacky University Olomouc
Port d'Informació Científica
INFN Sezione di Torino
University of Turin
Università degli studi di Bari Aldo Moro
University of Rijeka
University of Würzburg
Hiroshima University
Politecnico di Bari
University of Lodz
University of Split
Ruhr-University Bochum
Tohoku University
Josip Juraj Strossmayer University of Osijek
Université de Genève
Astronomical Institute, Academy of Sciences of the Czech Republic v.v.i.
Waseda University
Tokai University
University of Trieste
University of Jaen
Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences
of Sciences
University of Palermo
Complutense University
University of Zagreb
Campus UAB
INFN Roma Tor Vergata
Charles University
Tokushima University
University of Siena
Università Dell'Aquila
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
Aoyama Gakuin University

Résultats de recherche: Contribution à un journal › Article de conférence › Revue par des pairs

Résumé

The first Large Size Telescope (LST-1) of the Cherenkov Telescope Array has been operational since October 2018 at La Palma, Spain. We report on the results obtained during the camera commissioning. The noise level of the readout is determined as a 0.2 p.e. level. The gain of PMTs are well equalized within 2% variation, using the calibration flash system. The effect of the night sky background on the signal readout noise as well as the PMT gain estimation are also well evaluated. Trigger thresholds are optimized for the lowest possible gamma-ray energy threshold and the trigger distribution synchronization has been achieved within 1 ns precision. Automatic rate control realizes the stable observation with 1.5% rate variation over 3 hours. The performance of the novel DAQ system demonstrates a less than 10% dead time for 15 kHz trigger rate even with sophisticated online data correction.

langue originale	Anglais
Numéro d'article	718
journal	Proceedings of Science
Volume	395
état	Publié - 18 mars 2022
Modification externe	Oui
Evénement	37th International Cosmic Ray Conference, ICRC 2021 - Virtual, Berlin, Allemagne Durée: 12 juil. 2021 → 23 juil. 2021

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@article{5ca10b9d1cd04b4bab28b6a475d93cbc,

title = "Commissioning of the camera of the first Large Size Telescope of the Cherenkov Telescope Array",

abstract = "The first Large Size Telescope (LST-1) of the Cherenkov Telescope Array has been operational since October 2018 at La Palma, Spain. We report on the results obtained during the camera commissioning. The noise level of the readout is determined as a 0.2 p.e. level. The gain of PMTs are well equalized within 2\% variation, using the calibration flash system. The effect of the night sky background on the signal readout noise as well as the PMT gain estimation are also well evaluated. Trigger thresholds are optimized for the lowest possible gamma-ray energy threshold and the trigger distribution synchronization has been achieved within 1 ns precision. Automatic rate control realizes the stable observation with 1.5\% rate variation over 3 hours. The performance of the novel DAQ system demonstrates a less than 10\% dead time for 15 kHz trigger rate even with sophisticated online data correction.",

author = "\{the CTA LST project\} and T. Saito and C. Delgado and O. Blanch and M. Artero and Barrio, \{J. A.\} and F. Cassol and C. Diaz and D. Hadasch and D. Hoffmann and J. Houles and Y. Inome and M. Iori and L. Jouvin and D. Kerszberg and Y. Kobayashi and H. Kubo and G. Martinez and D. Mazin and E. Moretti and T. Nakamori and S. Nozaki and T. Oka and A. Okumura and M. Palatiello and M. Polo and J. Prast and S. Sakurai and Y. Sunada and M. Takahashi and R. Takeishi and Tejedor, \{L. A.\} and T. Yamamoto and T. Yoshida and H. Abe and A. Aguasca and I. Agudo and Antonelli, \{L. A.\} and C. Aramo and T. Armstrong and K. Asano and H. Ashkar and P. Aubert and A. Baktash and A. Bamba and \{Baquero Larriva\}, A. and L. Baroncelli and \{Barres de Almeida\}, U. and I. Batkovic and \{Becerra Gonz{\'a}lez\}, J. and Bernardos, \{M. I.\}",

year = "2022",

month = mar,

day = "18",

language = "English",

volume = "395",

journal = "Proceedings of Science",

issn = "1824-8039",

}

TY - JOUR

T1 - Commissioning of the camera of the first Large Size Telescope of the Cherenkov Telescope Array

AU - the CTA LST project

AU - Saito, T.

AU - Delgado, C.

AU - Blanch, O.

AU - Artero, M.

AU - Barrio, J. A.

AU - Cassol, F.

AU - Diaz, C.

AU - Hadasch, D.

AU - Hoffmann, D.

AU - Houles, J.

AU - Inome, Y.

AU - Iori, M.

AU - Jouvin, L.

AU - Kerszberg, D.

AU - Kobayashi, Y.

AU - Kubo, H.

AU - Martinez, G.

AU - Mazin, D.

AU - Moretti, E.

AU - Nakamori, T.

AU - Nozaki, S.

AU - Oka, T.

AU - Okumura, A.

AU - Palatiello, M.

AU - Polo, M.

AU - Prast, J.

AU - Sakurai, S.

AU - Sunada, Y.

AU - Takahashi, M.

AU - Takeishi, R.

AU - Tejedor, L. A.

AU - Yamamoto, T.

AU - Yoshida, T.

AU - Abe, H.

AU - Aguasca, A.

AU - Agudo, I.

AU - Antonelli, L. A.

AU - Aramo, C.

AU - Armstrong, T.

AU - Asano, K.

AU - Ashkar, H.

AU - Aubert, P.

AU - Baktash, A.

AU - Bamba, A.

AU - Baquero Larriva, A.

AU - Baroncelli, L.

AU - Barres de Almeida, U.

AU - Batkovic, I.

AU - Becerra González, J.

AU - Bernardos, M. I.

PY - 2022/3/18

Y1 - 2022/3/18

N2 - The first Large Size Telescope (LST-1) of the Cherenkov Telescope Array has been operational since October 2018 at La Palma, Spain. We report on the results obtained during the camera commissioning. The noise level of the readout is determined as a 0.2 p.e. level. The gain of PMTs are well equalized within 2% variation, using the calibration flash system. The effect of the night sky background on the signal readout noise as well as the PMT gain estimation are also well evaluated. Trigger thresholds are optimized for the lowest possible gamma-ray energy threshold and the trigger distribution synchronization has been achieved within 1 ns precision. Automatic rate control realizes the stable observation with 1.5% rate variation over 3 hours. The performance of the novel DAQ system demonstrates a less than 10% dead time for 15 kHz trigger rate even with sophisticated online data correction.

AB - The first Large Size Telescope (LST-1) of the Cherenkov Telescope Array has been operational since October 2018 at La Palma, Spain. We report on the results obtained during the camera commissioning. The noise level of the readout is determined as a 0.2 p.e. level. The gain of PMTs are well equalized within 2% variation, using the calibration flash system. The effect of the night sky background on the signal readout noise as well as the PMT gain estimation are also well evaluated. Trigger thresholds are optimized for the lowest possible gamma-ray energy threshold and the trigger distribution synchronization has been achieved within 1 ns precision. Automatic rate control realizes the stable observation with 1.5% rate variation over 3 hours. The performance of the novel DAQ system demonstrates a less than 10% dead time for 15 kHz trigger rate even with sophisticated online data correction.

UR - https://www.scopus.com/pages/publications/85144623944

M3 - Conference article

AN - SCOPUS:85144623944

SN - 1824-8039

VL - 395

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 718

T2 - 37th International Cosmic Ray Conference, ICRC 2021

Y2 - 12 July 2021 through 23 July 2021

ER -

Commissioning of the camera of the first Large Size Telescope of the Cherenkov Telescope Array

Résumé

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