Mainz 2014 – scientific programme

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T: Fachverband Teilchenphysik

T 107: Supernova

T 107.5: Talk

Thursday, March 27, 2014, 17:45–18:00, P11

HitSpooling: Improving IceCube's Supernova Detection System — •David Heereman and Kael Hanson for the IceCube collaboration — IIHE ULB - VUB, Blvd de la Plaine 2, 1050 Bruxelles Belgique

The IceCube Neutrino Observatory consists of a lattice of 5160 photomultiplier tubes which monitor one cubic kilometer of deep Antarctic ice at the geographic South Pole. IceCube was designed to detect energies greater than 100 GeV. Due to subfreezing ice temperatures, the photomultipliers' dark noise rates are particularly low which enables IceCube to search for neutrinos from galactic supernovae by detecting bursts of MeV neutrinos emitted during the core collapse and for several seconds following.

A new feature to the standard DAQ, called HitSpooling, will be presented in this talk. By buffering the full raw data stream of the photomultipliers and reading out time windows around triggers generated by the online supernova trigger we have access to the full information of the detector in case of a supernova. Furthermore, HitSpooling is a powerful data source for studying and understanding the noise behavior of the detector as well as background processes coming from atmospheric muons. We'll present the idea of HitSpooling, the developed interface between the two IceCube data streams and present studies done with the HitSpool data.