First results of the Instrumentation Line for the deep-sea ANTARES neutrino telescope

Abstract

In 2005, the ANTARES Collaboration deployed and operated at a depth of 2500 m a so-called Mini Instrumentation Line equipped with Optical Modules (MILOM) at the ANTARES site. The various data acquired during the continuous operation from April to December 2005 of the MILOM confirm the satisfactory performance of the Optical Modules, their front-end electronics and readout system, as well as the calibration devices of the detector. The in-situ measurement of the Optical Module time response yields a resolution better than 0.5 ns. The performance of the acoustic positioning system, which enables the spatial reconstruction of the ANTARES detector with a precision of about 10 cm, is verified. These results demonstrate that with the full ANTARES neutrino telescope the design angular resolution of better than $0.3^{\circ }$ can be realistically achieved.

18 pages, 12 figures, submitted to Astroparticle Physics

References in corpus (5)

• The ANTARES Optical Module
• Transmission of light in deep sea water at the site of the Antares neutrino telescope
• Study of Large Hemispherical Photomultiplier Tubes for the ANTARES Neutrino Telescope
• Background Light in Potential Sites for the ANTARES Undersea Neutrino Telescope
• Sedimentation and Fouling of Optical Surfaces at the ANTARES Site

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