English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Open

Presents the pdf analysis as premium feature

PDF Analysis

Insights

Presents the summarisation as premium feature

Summarisation

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

The proposed large scale Cherenkov neutrino telescope KM3NeT will carryphoto-sensors on flexible structures, the detection units. The MediterraneanSea, where KM3NeT will be installed, constitutes a highly dynamic environmentin which the detection units are constantly in motion. Thus it is necessary tomonitor the exact sensor positions continuously to achieve the desiredresolution for the neutrino telescope. A common way to perform this monitoringis the use of acoustic positioning systems with emitters and receivers based onthe piezoelectric effect. The acoustic receivers are attached to detectionunits whereas the emitters are located at known positions on the sea floor.There are complete commercial systems for this application with sufficientprecision. But these systems are limited in the use of their data andinefficient as they were designed to perform only this single task. Severalworking groups in the KM3NeT consortium are cooperating to custom-design apositioning system for the specific requirements of KM3NeT. Most of the studiedsolutions hold the possibility to extend the application area from positioningto additional tasks like acoustic particle detection or monitoring of thedeep-sea acoustic environment. The KM3NeT Pre-Production Module (PPM) is a testsystem to verify the correct operation and interoperability of the majorinvolved hardware and software components developed for KM3NeT. In the contextof the PPM, alternative designs of acoustic sensors including smallpiezoelectric elements equipped with preamplifiers inside the same housing asthe optical sensors will be tested. These will be described in this article.

Acoustic Calibration for the KM3NeT Pre-Production Module