Characterization and absolute calibration of R11265 multi-anode photomultiplier tubes for the JEM-EUSO space and balloon program: II. Application to the EUSO-SPB2 photodetection modules
The fluorescence camera of the EUSO-SPB2 mission is the last and most advanced implementation of the technology developed within the JEM-EUSO (Joint Exploratory Missions for an Extreme Universe Space Observatory) collaboration to study ultra-high-energy cosmic rays (UHECRs), extensive atmospheric showers and transient luminous events from space. It consists of three photodection modules, each hosting nine elementary cells with 36 multi-anode photomultiplier tubes (MAPMTs), for a total of 6912 pixels. The associated electronics was designed to operate in single photon counting mode. In this paper, we apply the calibration techniques presented in the accompanying paper (Paper I) to characterize the photodetectors of the EUSO-SPB2 fluorescence camera. In particular, we determine the photodetection efficiency and physical size of each pixel. We find an average efficiency of ∼ 32%. We also examine its dependence with high voltage and photon wavelength, and determine the double pulse resolution of the different channels, of the order of 10 ns.
Authors
- G. Osteria (ORCID: https://orcid.org/0000-0002-9871-8103)
- А. А. Белов (ORCID: https://orcid.org/0000-0002-8565-6409)
- G. Prévôt
- George Filippatos (ORCID: https://orcid.org/0000-0003-4087-2156)
- Toshikazu Ebisuzaki (ORCID: https://orcid.org/0000-0002-3918-1166)
- D. Trofimov (ORCID: https://orcid.org/0000-0002-5853-0536)
- M. Battisti
- Angela V. Olinto (ORCID: https://orcid.org/0000-0001-7374-376X)
- Lawrence Wiencke (ORCID: https://orcid.org/0000-0003-2878-9704)
- П. А. Климов (ORCID: https://orcid.org/0000-0001-9815-6123)
- B. Baret (ORCID: https://orcid.org/0000-0001-6064-3858)
- M. Casolino (ORCID: https://orcid.org/0000-0001-6067-5104)
- S. Blin
- E. Msihid
- E. Parizot (ORCID: https://orcid.org/0000-0002-7612-9869)
- D. Allard
- A. Creusot
- Y. Takizawa
- А. Мурашов
Institutions
- University of Rome Tor Vergata (IT)
- Centre National de la Recherche Scientifique (FR)
- École Polytechnique (FR)
- Istituto Nazionale di Fisica Nucleare (IT)
- Colorado School of Mines (US)
- Institut Universitaire de France (FR)
- Lomonosov Moscow State University (RU)
- Université Paris Cité (FR)
- Laboratoire AstroParticule et Cosmologie (FR)
- University of Chicago (US)
- National Centre for Nuclear Research (PL)
- RIKEN (JP)
Publication Details
- Journal
- Astroparticle Physics
- Published
- 2025-05-29
- DOI
- https://doi.org/10.1016/j.astropartphys.2025.103131
- Primary Topic
- Calibration and Measurement Techniques
- Type
- article
- Field-Weighted Citation Impact
- 0.00