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Tests and characterisation of the KI trigger for fast events on the EUSO-SPB2 Fluorescence Telescope

  • JEM-EUSO Collaboration
  • Gran Sasso Science Institute
  • INFN Sezione di Torino
  • Astroparticule and Cosmol APC
  • Faculty of Physics
  • University of Turin
  • University of Chicago
  • Colorado School of Mines
  • Moscow State University
  • University of Warsaw
  • Nihon University
  • University of Alabama in Huntsville
  • Lehman College
  • INFN Sezione di Catania
  • INAF Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo
  • College of Computing
  • Istituto di Astrofisica e Planetologia Spaziali (IAPS)
  • INFN Sezione di Bari
  • Università degli studi di Bari Aldo Moro
  • NASA Marshall Space Flight Center
  • INFN Roma Tor Vergata
  • Riken
  • KTH Royal Institute of Technology
  • University of Chicago
  • University of Rome “Tor Vergata”
  • INFN Sezione di Napoli
  • Max-Planck-Institut für Physik
  • Università degli Studi di Catania
  • Joint Laboratory of Optics
  • Università di Napoli Federico II
  • University of Naples Federico II

Research output: Contribution to journalConference articlepeer-review

Abstract

The second generation Extreme Universe Space Observatory on a Super-Pressure Balloon (EUSOSPB2) mission is a stratospheric balloon mission developed within the Joint Exploratory Missions for Extreme Universe Space Observatory (JEM-EUSO) program. The Fluorescence Telescope (FT) is one of the two separate Schmidt telescopes of EUSO-SPB2, which aims at measuring the fluorescence emission of extensive air showers from cosmic rays above the energy of 1 EeV, looking downwards onto the atmosphere from the float altitude of 33 km. The FT measures photons with a time resolution of 1.05 μs in two different modes: single photon counting (PC) and charge integration (KI). In this paper, we describe the latter and report on the measurements of its characteristics. We also present a new trigger based on this channel, the so-called KI trigger, which allows to measure additional types of events, namely very short and intense light pulses. We report on the tests of this trigger mode in the laboratory and at the TurLab facility, and its implementation in the EUSO-SPB2 mission.

Original languageEnglish
Article number430
JournalProceedings of Science
Volume444
Publication statusPublished - 27 Sept 2024
Event38th International Cosmic Ray Conference, ICRC 2023 - Nagoya, Japan
Duration: 26 Jul 20233 Aug 2023

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