The design and performance of IceCube DeepCore

By The IceCube Collaboration. 2011

338 citations recorded by the source corpus.

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. (c) 2012 Elsevier B.V. All rights reserved.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/d85f5a9332948d8a310f29d647bc4e4b64d86e5a

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Citations in the corpus

Improved limits on dark matter annihilation in the Sun with the 79-string IceCube detector and implications for supersymmetry (2016, methodology): “This trigger is 70% efficient for a simulated sample of atmospheric νμ events of 10 GeV neutrino energy [24].”
Letter of Intent: The Precision IceCube Next Generation Upgrade (PINGU) (2014, methodology): “We describe the baseline design of the PINGU detector and requirements for the hot water drill, highlighting salient points of departure from that used in IceCube [27, 28, 29].”
All-sky Search for Time-integrated Neutrino Emission from Astrophysical Sources with 7 yr of IceCube Data (2016, background): “The eight innermost strings form a denser sub-array called DeepCore, which targets lower energies(Abbasi et al. 2012).”
Extending the Search for Muon Neutrinos Coincident with Gamma-Ray Bursts in IceCube Data (2017, methodology): “IceCube consists of 5160 digital optical modules (DOMs) placed at depths from 1450 to 2450 m in the Antarctic ice shelf below the south pole(Achterberg et al. 2006; Abbasi et al. 2012b).”
A COMBINED MAXIMUM-LIKELIHOOD ANALYSIS OF THE HIGH-ENERGY ASTROPHYSICAL NEUTRINO FLUX MEASURED WITH ICECUBE (2015, background): “Eight of the strings are part of a more densely instrumented region in the center of the detector, DeepCore, which serves as a low energy extension to IceCube (Abbasi et al. 2012).”
The IceCube Realtime Alert System (2016, background): “densely instrumented DeepCore portion of the detector [9] and on any single DOMs containing more than 50% of the total charge in the event are excluded to prevent the signal from a single DOM very close to a particle track from dominating the charge measurement.”
The IceCube Neutrino Observatory: Instrumentation and Online Systems (2016, methodology): “The eight specialized DeepCore strings have a DOM-to-DOM spacing of 7 m for the bottom 50 DOMs, deployed at depths of 2100 m to 2450 m.”
Measurement of South Pole ice transparency with the IceCube LED calibration system (2013, background): “rings are arranged in a triangular lattice with a horizontal spacing of approximately 125 m. The remaining 480 sensors are deployed in a more compact geometry forming the center of the DeepCore array [2]. The IceCube optical sensors are remotely-controlled autonomous detection units whichdigitize th”
Neutrino Oscillations and Non-standard Interactions (2017, background): “The IceCube DeepCore detector is a sub-array of the IceCube neutrino observatory, operating at the South Pole [83].”