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The design and performance of icecube deepcore
Stockholm University, Faculty of Science, Department of Physics.
Stockholm University, Faculty of Science, Department of Physics.
Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
Stockholm University, Faculty of Science, Department of Physics.
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2012 (English)In: Astroparticle physics, ISSN 0927-6505, E-ISSN 1873-2852, Vol. 35, no 10, 615-624 p.Article in journal (Refereed) Published
Abstract [en]

The IceCube neutrino observatory in operation at the South Pole, Antarctica, comprises three distinct components: a large buried array for ultrahigh energy neutrino detection, a surface air shower array, and a new buried component called DeepCore. DeepCore was designed to lower the IceCube neutrino energy threshold by over an order of magnitude, to energies as low as about 10 GeV. DeepCore is situated primarily 2100 m below the surface of the icecap at the South Pole, at the bottom center of the existing IceCube array, and began taking physics data in May 2010. Its location takes advantage of the exceptionally clear ice at those depths and allows it to use the surrounding IceCube detector as a highly efficient active veto against the principal background of downward-going muons produced in cosmic-ray air showers. DeepCore has a module density roughly five times higher than that of the standard IceCube array, and uses photomultiplier tubes with a new photocathode featuring a quantum efficiency about 35% higher than standard IceCube PMTs. Taken together, these features of DeepCore will increase IceCube's sensitivity to neutrinos from WIMP dark matter annihilations, atmospheric neutrino oscillations, galactic supernova neutrinos, and point sources of neutrinos in the northern and southern skies. In this paper we describe the design and initial performance of DeepCore.

Place, publisher, year, edition, pages
2012. Vol. 35, no 10, 615-624 p.
Keyword [en]
Neutrino, Detector, Antarctica, DeepCore, IceCube
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:su:diva-80074DOI: 10.1016/j.astropartphys.2012.01.004ISI: 000304220600002OAI: oai:DiVA.org:su-80074DiVA: diva2:557207
Note

AuthorCount:258;

Available from: 2012-09-27 Created: 2012-09-12 Last updated: 2017-12-07Bibliographically approved

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Bohm, ChristianDanninger, MatthiasFinley, ChadHulth, Per-OlofHultqvist, KlasJohansson, Henrik A. B.Seo, Seon HeeWalck, ChristianZoll, Marcel
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Department of PhysicsThe Oskar Klein Centre for Cosmo Particle Physics (OKC)
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Astroparticle physics
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