Abstract
The KM3NeT European project aims to construct a large volume underwater neutrino telescope in the depths of the Mediterranean Sea. INFN and KM3NeT collaboration, thanks to a dedicated funding of 21.000.000 € (PON 2007–2013), are committed to build and deploy the Phase 1 of the telescope, composed of a network of detection units: 8 towers, equipped with single photomultiplier optical modules, and 24 strings, equipped with multi-photomultipliers optical modules. All the towers and strings are connected to the main electro optical cable by means of a network of junction boxes and electro optical interlink cables. Each junction box is an active node able to provide all the necessary power to the detection units and to guarantee the data transmission between the detector and the on-shore control station. The KM3NeT Italia project foresees the realization and the installation of the first part of the deep sea network, composed of three junction boxes, one for the towers and two for the strings. In July 2015, two junction boxes have been deployed and connected to the new cable termination frame installed during the same sea campaign. The third and last one will be installed in November 2015. The status of the deep sea network is presented together with technical details of the project.
Highlights
The Km3NeT Italy is the first block of the KM3NeT neutrino telescope [1]
In July 2015, two junction boxes have been deployed and connected to the new cable termination frame installed during the same sea campaign
Each Detection Unit (DU), both string-like and tower-like structures, is connected to a Junction Boxes (JBs) which acts as an active underwater node for the exchange of data and power from and to the shore station
Summary
The Km3NeT Italy is the first block of the KM3NeT neutrino telescope [1]. Figure 1 shows its underwater layout. The MVC is hosted on a Cable Termination Frame connected to the JBs by electro optical interlink cables equipped with 4 optical fibres and 2 electrical conductors. The design of the CTF includes a mechanical frame (Titanium), a Cable Termination Assembly system (for the splitting of the fibres and electrical connection), a patch panel with 5 hybrid ROV wet mateable connectors (each one able to manage 4 optical fibres) and a Medium Voltage Converter for the power supply of the underwater telescope. The fourth connector is used for the connection of the EMSO JB (www.emso-eu.org).The fifth connector in the future could be used to connect another JB of the underwater detector
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
