Astronomy and Astrophysics – Astrophysics – Instrumentation and Methods for Astrophysics
Scientific paper
2009-07-21
Astronomy and Astrophysics
Astrophysics
Instrumentation and Methods for Astrophysics
4 pages, 4 figures, presented at the 31st International Cosmic Ray Conference
Scientific paper
A promising approach to measure the expected low flux of cosmic neutrinos at the highest energies (E > 1 EeV) is acoustic detection. There are different in-situ test installations worldwide in water and ice to measure the acoustic properties of the medium with regard to the feasibility of acoustic neutrino detection. The parameters of interest include attenuation length, sound speed profile, background noise level and transient backgrounds. The South Pole Acoustic Test Setup (SPATS) has been deployed in the upper 500 m of drill holes for the IceCube neutrino observatory at the geographic South Pole. In-situ calibration of sensors under the combined influence of low temperature, high ambient pressure, and ice-sensor acoustic coupling is difficult. We discuss laboratory calibrations in water and ice. Two new laboratory facilities, the Aachen Acoustic Laboratory (AAL) and the Wuppertal Water Tank Test Facility, have been set up. They offer large volumes of bubble free ice (3 m^3) and water (11 m^3) for the development, testing, and calibration of acoustic sensors. Furthermore, these facilities allow for verification of the thermoacoustic model of sound generation through energy deposition in the ice by a pulsed laser. Results from laboratory measurements to disentangle the effects of the different environmental influences and to test the thermoacoustic model are presented.
Bissok Martin
for the IceCube Collaboration
Karg Timo
Laihem Karim
Semburg Benjamin
No associations
LandOfFree
Sensor development and calibration for acoustic neutrino detection in ice does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Sensor development and calibration for acoustic neutrino detection in ice, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sensor development and calibration for acoustic neutrino detection in ice will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-175216