Monterey 22.-25.09.16 KM3NET Italy Klaus Leismller KM3NET The - - PowerPoint PPT Presentation

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Monterey 22.-25.09.16 KM3NET Italy Klaus Leismller KM3NET The - - PowerPoint PPT Presentation

Monterey 22.-25.09.16 KM3NET Italy Klaus Leismller KM3NET The next generation Neutrino T The next generation Neutrino Telescope elescope Located in the deepest seas of the Mediterranean, once completed, it will have a detector volume


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Monterey 22.-25.09.16

  • KM3NET Italy

Klaus Leismüller

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KM3NET

The next generation Neutrino T The next generation Neutrino Telescope elescope

Located in the deepest seas of the Mediterranean, once completed, it will have a detector volume volume of

  • f

several cubic kilometers several cubic kilometers and will open a new window on our Universe. With the telescope physicists of KM3NeT will sear search ch for for neutrinos neutrinos fr from

  • m distant

distant astr astrophysical

  • physical sour

sources ces such as supernovae, gamma ray bursters or colliding stars. An array of

  • f thousands

thousands of

  • f optical
  • ptical sensors

sensors will detect the faint light in the deep sea from charged particles

  • riginating from collisions of the neutrinos and the Earth (ARCA) and a detector dedicated to particle

physics research exploiting oscillations in atmospheric neutrinos (ORCA). ARCA (Astroparticle Research with Cosmic in the Abyss) will study the cosmic neutrino flux providing essential data concerning its origin, energy spectrum and flavor composition. With the ARCA telescope 87% of the sky will be mapped including most of the Galaxy and the Galactic Center, where some interesting unexplained phenomena are observed with other astro-particle detectors and the discovery of the emitting sources for which no hints are available at the moment. ARCA will be installed at the KM3NeT-It (http://www.km3net.org/research/research-infrastructure/km3net-it-site/) site, about 100 kilometer off-shore Sicily, Italy, and will be anchored at a depth of about 3500 m.

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KM3NET

The next generation Neutrino T The next generation Neutrino Telescope elescope

The The document document that that describes describes these these two two apparatuses apparatuses ARCA ARCA (Astr (Astroparticle

  • particle Resear

Research ch with with Cosmic Cosmic in in the the Abyss) Abyss) of

  • ff

f the the Italian Italian coast coast (South (South Sicily) Sicily) and and Or Orca ca (Oscillation (Oscillation Resear Research ch with with Cosmic Cosmic in in the the Abyss) Abyss) of

  • ff

f the the Fr French coast (T ench coast (Toulon), was very r

  • ulon), was very recently published in:

ecently published in: Jour Journal of Physics G, "Letter of Intent for KM3NeT 2.0”, it’ nal of Physics G, "Letter of Intent for KM3NeT 2.0”, it’s available at: s available at: http://dx.doi.org/10.1088/0954-3899/43/8/084001 http://dx.doi.org/10.1088/0954-3899/43/8/084001

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Phase I @ Italian Site

Km3NeT - Italy Phase I Main Data

Depth 3.500 m Distance from shore 100 km Main Electro Optical cable Alcatel OALC 4 - 20 FO G655 1 Cable Termination Frame 4 Junction Boxes 32 Detection Units Height DU 700 m Total electrical power 10 kW

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Tools and Equipment

  • Multi Service Vessel ATide
  • 30 t hydraulic A-Frame with

4500m lift lines

  • Heavy work class ROV rated up

to 4500 mwd (125 hp)

  • DP2

Junction Box - JB Cable Tray - CT Interlink Cables - IL IL dry (CTF – JB) up to 600 m IL oil (JB – DU) up to 300 m Cable Termination Frame - CTF String - S 1000x Tower - T 2000x

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Challenges

  • Change out of Cable Termination Frame
  • Recovery of Junction Box
  • Recovery of 1 Tower (unsuccessful)
  • Recovery of 1 String
  • Long term wet storage of cables
  • In storage maintenance of equipment

Curr Currently undergoing a full technical r ently undergoing a full technical review eview