Agostini, M;
Agreda, S;
Alexander Wight, A;
Barbeau, PS;
Baron, AJ;
Bash, S;
Bellenghi, C;
... Zaalishvili, A; + view all
(2025)
Prototype acoustic positioning system for the Pacific Ocean Neutrino Experiment.
Journal of Instrumentation
, 20
(7)
, Article P07003. 10.1088/1748-0221/20/07/P07003.
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Abstract
We present the design and initial performance characterization of the prototype acoustic positioning system intended for the Pacific Ocean Neutrino Experiment. It comprises novel piezo-acoustic receivers with dedicated filtering- and amplification electronics installed in P-ONE instruments and is complemented by a commercial system comprised of cabled and autonomous acoustic pingers for sub-sea installation manufactured by Sonardyne Ltd. We performed an in-depth characterization of the acoustic receiver electronics and their acoustic sensitivity when integrated into P-ONE pressure housings. These show absolute sensitivities of up to -125 dB re V<sup>2</sup>/μPa<sup>2</sup> in a frequency range of 10-40 kHz. We furthermore conducted a positioning measurement campaign in the ocean by deploying three autonomous acoustic pingers on the seafloor, as well as a cabled acoustic interrogator and a P-ONE prototype module deployed from a ship. Using a simple peak-finding detection algorithm, we observe high accuracy in the tracking of relative ranging times at approximately 230-280 μs at distances of up to 1600 m, which is sufficient for positioning detectors in a cubic-kilometer detector and which can be further improved with more involved detection algorithms. The tracking accuracy is further confirmed by independent ranging of the Sonardyne system and closely follows the ship's drift in the wind measured by GPS. The absolute positioning shows the same tracking accuracy with its absolute precision only limited by the large uncertainties of the deployed pinger positions on the seafloor.
| Type: | Article |
|---|---|
| Title: | Prototype acoustic positioning system for the Pacific Ocean Neutrino Experiment |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1088/1748-0221/20/07/P07003 |
| Publisher version: | https://doi.org/10.1088/1748-0221/20/07/p07003 |
| Language: | English |
| Additional information: | Published by IOP Publishing Ltd on behalf of Sissa Medialab. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence (http://creativecommons.org/licenses/by/4.0). Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. |
| Keywords: | Data analysis; Detector alignment and calibration methods (lasers, sources, particle-beams); Large detector systems for particle and astroparticle physics; Neutrino detectors |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10212437 |
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