Speaker
John Kelley
(Univ. of Wisconsin, Madison)
Description
The IceCube Neutrino Observatory is a cubic kilometer-scale neutrino
detector and air shower array at the geographic South Pole. The online
computing system for IceCube comprises subsystems for data acquisition (DAQ),
online filtering, supernova detection, and experiment control and monitoring. We
present the DAQ software and describe the process of forming events from
the stream of individual triggered waveforms or "hits" from the digital
optical modules (DOMs). Various trigger algorithms are used in the DAQ to
select cosmic-ray and neutrino events from the background of random noise
in the DOMs. Additionally, we describe recently implemented and proposed
algorithmic changes to the DAQ system to alleviate bottlenecks, as well as a
new data buffering feature that expands the possibilities for
sub-threshold analysis.
Primary author
John Kelley
(Univ. of Wisconsin, Madison)
Co-author
The IceCube Collaboration
(The IceCube Neutrino Observatory)
