PoS - Proceedings of Science
Volume 444 - 38th International Cosmic Ray Conference (ICRC2023) - Cosmic-Ray Physics (Indirect, CRI)
The EUSO-TA ground-based detector: results and perspectives
Z.D. Plebaniak
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Pre-published on: August 18, 2023
Published on:
EUSO–TA is a ground-based telescope installed in 2013 in the Black Rock Mesa Telescope Array (BRM-TA) site, operating with 2.5 $\mu$s time resolution to observe the night sky in the UV range. The optical system contains two 1 m$^2$ Fresnel lenses providing to the telescope a field of view of 11$^\circ$ × 11$^\circ$. 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$^\circ$. 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.
DOI: https://doi.org/10.22323/1.444.0385
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