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Status and first results of the NEMO Phase-2 tower
- Publication Year :
- 2014
-
Abstract
- In March 2013, the NEMO Phase 2 tower has been successfully installed in the Capo Passero site, at a depth of 3500 m and 80 km off from the southern coast of Sicily. The unfurled tower is 450 m high; it is composed of 8 mechanical floors, for a total amount of 32 PMTs and various instruments for environmental measurements. The tower positioning is achieved by an acoustic system. The tower is continuously acquiring and transmitting all the measured signals to shore. Data reduction is completely performed in the Portopalo shore station by a dedicated computing facility connected to the persistent storage system at LNS, in Catania. Results from the last 9 months of acquisition will be presented. In particular, the analyzed optical rates, showing stable and low baseline values, are compatible with the contribution mainly of 40K light emission, with a small percentage of light bursts due to bioluminescence. These features reveal the optimal nature of the Capo Passero abyssal site to host a km3-sized Neutrino Telescope. © 2014 IOP Publishing Ltd and Sissa Medialab srl.
- Subjects :
- Phase (waves)
Particle detector
Neutrino detector
Optics
Data acquisition concept
Neutrino detectors
cherenkov detectors
data acquisition concepts
neutrino detectors
neutrino detectors cherenkov detectors data acquisition concepts
WATER CHERENKOV DETECTOR
Instrumentation
Mathematical Physics
Shore station
Shore
Physics
geography
geography.geographical_feature_category
business.industry
Cherenkov detectors
Geodesy
Light emission
business
Tower
Data reduction
Cherenkov detector
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....f5ac30639f79cb0c6831c6187959bf48