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Results, status and perspectives of the work on acoustic detection of neutrinos at the south pole
The ability to detect high energetic neutrinos at the south pole by acoustic means is strongly dependent on local ice properties and the underlying noise floor. The South Pole Acoustic Test Setup (SPATS) has been designed to measure these unknown parameters and to verify the efficiency of a multi-${\rm km}^3$-detector at the south pole. SPATS consists of four 500m long strings, each instrumented at seven acoustic stations with three acoustic sensors. These sensors record acoustic signals from fixed and mobile SPATS transmitters and allow conclusions about the speed and the attenuation length of acoustic waves till 500 m depth. Since August 2008 SPATS is taking data in a detector mode, which allows us to identify transient and static acoustic background in the surrounding volume. Shown are results of finished and ongoing SPATS investigations as well as future perspectives of the acoustic neutrino detection.
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10/13/11 |
12 MB |
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