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The EUSO-TA ground-based detector: results and perspectives
Università di Roma Tor Vergata - Dipartimento di Fisica Via della Ricerca Scientifica 1 – 00133, Roma, Italy, Via della Ricerca Scientifica 1; Istituto Nazionale di Fisica Nucleare - Sezione di Roma Tor Vergata Via della Ricerca Scientifica 1 – 00133, Roma, Italy, Via della Ricerca Scientifica 1.
KTH, School of Engineering Sciences (SCI), Physics, Particle Physics, Astrophysics and Medical Imaging.ORCID iD: 0000-0001-5456-3894
KTH, School of Engineering Sciences (SCI), Physics, Particle Physics, Astrophysics and Medical Imaging.ORCID iD: 0000-0002-0406-0962
Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Russia.
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Number of Authors: 1582024 (English)In: 38th International Cosmic Ray Conference, ICRC 2023, Sissa Medialab Srl , 2024, article id 385Conference paper, Published paper (Refereed)
Abstract [en]

EUSO–TA is a ground-based telescope installed in 2013 in the Black Rock Mesa Telescope Array (BRM-TA) site, operating with 2.5 μs time resolution to observe the night sky in the UV range. The optical system contains two 1 m2 Fresnel lenses providing to the telescope a field of view of 11◦ × 11◦. Signals are focused on the Photo Detector Module (PDM), with the focal surface composed of 36 Hamamatsu Multi-Anode PhotoMultiplier Tubes (MAPMTs), with 64 pixels/anodes each. The telescope is housed in a shed in front of the BRM-TA fluorescence detectors, and it is viewing towards azimuth ∼ 307◦. The main aim of the experiment is to validate the design of the JEM-EUSO detectors and firmware with the final goal of observing ultra-high-energy cosmic rays (UHECRs) from space. Since the first installation of the EUSO-TA detector, 9 UHECR events have been detected and confirmed by comparison with TA observations. The night-sky UV background in different conditions, signals from stars and meteors have been measured, and anthropogenic signals, such as calibration lasers or planes. In 2019 an upgrade of the detector to a EUSO-TA2 version began, with a Covid brake till 2022. The new configuration will allow for more frequent and specialized observations. In this work, we present the status and perspectives of the EUSO-TA experiment, including a discussion of recently obtained results.

Place, publisher, year, edition, pages
Sissa Medialab Srl , 2024. article id 385
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:kth:diva-358150Scopus ID: 2-s2.0-85212249577OAI: oai:DiVA.org:kth-358150DiVA, id: diva2:1924776
Conference
38th International Cosmic Ray Conference, ICRC 2023, Nagoya, Japan, Jul 26 2023 - Aug 3 2023
Note

QC 20250114

Available from: 2025-01-07 Created: 2025-01-07 Last updated: 2025-01-14Bibliographically approved

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Bolmgren, KarlFuglesang, Christer

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