Erlangen 2026 – scientific programme

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T: Fachverband Teilchenphysik

T 106: Gamma Astronomy III

T 106.4: Talk

Friday, March 20, 2026, 09:45–10:00, KS 00.005

Characterization of ANTARES Photomultiplier Tubes for Sustainable Reuse in SWGO — •Saujanya Dubale, Alison Mitchell, and Oleg Kalekin — Erlangen Centre for Astroparticle Physics, Friedrich Alexander Universität Erlangen-Nürnberg, Nikolaus-Fiebiger-Str. 2, 91058 Erlangen, Germany

Modern astroparticle physics experiments face growing pressure to balance scientific performance with cost and sustainability. In this contribution, we explore the possibility of reusing photomultiplier tubes (PMTs) that were previously operated in the ANTARES neutrino telescope for use in the future Southern Wide-field Gamma-ray Observatory (SWGO). A dedicated laboratory setup has been constructed to study the long-term operability and general performance behaviour of these PMTs after extended use deep in the Mediterranean sea, including their quantum efficiency. The aim is to evaluate whether these PMTs remain suitable for use in next-generation Water Cherenkov Detectors. By investigating reuse as a viable option, this work addresses both economic and environmental considerations and supports more sustainable detector development strategies.

Keywords: Photomultiplier Tubes; Southern Wide-field Gamma-ray Observatory (SWGO); Sustainable; Quantum Efficiency; ANTARES