Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The IceCube Collaboration: contributions to the 30th International
  Cosmic Ray Conference (ICRC 2007)   This paper bundles 40 contributions by the IceCube collaboration that were
submitted to the 30th International Cosmic Ray Conference ICRC 2007. The
articles cover studies on cosmic rays and atmospheric neutrinos, searches for
non-localized, extraterrestrial electron, muon and tau neutrino signals, scans
for steady and intermittent neutrino point sources, searches for dark matter
candidates, magnetic monopoles and other exotic particles, improvements in
analysis techniques, as well as future detector extensions.
  The IceCube observatory will be finalized in 2011 to form a cubic-kilometer
ice-Cherenkov detector at the location of the geographic South Pole. At the
present state of construction, IceCube consists of 52 paired IceTop surface
tanks and 22 IceCube strings with a total of 1426 Digital Optical Modules
deployed at depths up to 2350 m. The observatory also integrates the 19 string
AMANDA subdetector, that was completed in 2000 and extends IceCube's reach to
lower energies. Before the deployment of IceTop, cosmic air showers were
registered with the 30 station SPASE-2 surface array.
  IceCube's low noise Digital Optical Modules are very reliable, show a uniform
response and record waveforms of arriving photons that are resolvable with
nanosecond precision over a large dynamic range. Data acquisition,
reconstruction and simulation software are running in production mode and the
analyses, profiting from the improved data quality and increased overall
sensitivity, are well under way.

1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
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The categories of this paper are: atom-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: dg-ga
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The categories of this paper are: chao-dyn
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The categories of this paper are: cond-mat
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The categories of this paper are: nlin
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The categories of this paper are: patt-sol
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The categories of this paper are: comp-gas
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The categories of this paper are: supr-con
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The categories of this paper are: acc-phys
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The categories of this paper are: gr-qc
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The categories of this paper are: nucl-ex
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The categories of this paper are: funct-an
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The categories of this paper are: math