Erlangen 2026 – scientific programme

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T: Fachverband Teilchenphysik

T 37: Neutrino Astronomy II

T 37.2: Talk

Tuesday, March 17, 2026, 16:30–16:45, KS H C

Construction and testing of the first string for the Pacific Ocean Neutrino Experiment — •Laura Winter for the P-ONE collaboration — Technical University of Munich, TUM School of Natural Sciences, Department of Physics, James-Franck-Straße 1, D-85748 Garching bei München, Germany

The Pacific Ocean Neutrino Experiment (P-ONE) is a next-generation multi-cubic-kilometer neutrino telescope under construction in the Northeast Pacific Ocean off the coast of Vancouver Island, Canada. The first construction phase comprises the initial detector string, which is currently under construction and testing, with deployment planned for summer 2026. The line consists of 20 optical and calibration modules designed for the detection of Cherenkov light. Each module features a modular multi-photomultiplier tube (PMT) design with 16 PMTs per module, optically and mechanically coupled to the glass using individual silicone gel pads. The first line will also be used to test biofouling mitigation strategies using both polished glass hemispheres and hemispheres treated with a special anti-biofouling coating. Module integration onto the detector line is currently being performed at TRIUMF (Tri-University Meson Facility) in Vancouver. This contribution presents the optical module production process, the line integration process, and first results from system-level testing of the full string.

Keywords: Neutrino telescope; Photomultiplier tube; Detector integration; Biofouling mitigation; Optical gel