期刊
ASTROPARTICLE PHYSICS
卷 35, 期 10, 页码 615-624出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.astropartphys.2012.01.004
关键词
Neutrino; Detector; Antarctica; DeepCore; IceCube
资金
- U.S. National Science Foundation-Office of Polar Programs
- U.S. National Science Foundation-Physics Division
- University of Wisconsin Alumni Research Foundation
- Grid Laboratory Of Wisconsin (GLOW) grid infrastructure at the University of Wisconsin - Madison
- Open Science Grid (OSG) grid infrastructure
- U.S. Department of Energy
- National Energy Research Scientific Computing Center
- Louisiana Optical Network Initiative (LONI) grid computing resources
- National Science and Engineering Research Council of Canada
- Swedish Research Council
- Swedish Polar Research Secretariat
- Swedish National Infrastructure for Computing (SNIC)
- Knut and Alice Wallenberg Foundation, Sweden
- German Ministry for Education and Research (BMBF)
- Deutsche Forschungsgemeinschaft (DFG)
- Research Department of Plasmas with Complex Interactions (Bochum), Germany
- Fund for Scientific Research (FNRS-FWO)
- FWO Odysseus programme
- Flanders Institute to encourage scientific and technological research in industry (IWT)
- Belgian Federal Science Policy Office (Belspo)
- University of Oxford, United Kingdom
- Marsden Fund, New Zealand
- Japan Society for Promotion of Science (JSPS)
- Swiss National Science Foundation (SNSF), Switzerland
- EU
- Capes Foundation, Ministry of Education of Brazil
- STFC [ST/J000507/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/J000507/1] Funding Source: researchfish
- Direct For Mathematical & Physical Scien [0855241] Funding Source: National Science Foundation
- Division Of Physics [0855241] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1205403] Funding Source: National Science Foundation
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.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据