Abstract

Borexino is a new real-time detector for low energy solar neutrinos presently in construction at the Gran Sasso underground laboratory in Italy. The low energy threshold and the low radioactive background rate required for the detection of neutrinos below 1 MeV determines the choice of using liquid scintillator as the detection medium. Several tests on scintillator radiopurity and on various techniques to be used in Borexino were performed in CTF, a prototype detector installed in Gran Sasso. By performing the first real-time measurement of low energy solar neutrinos, Borexino will supply new information contributing to the solution of the Solar Neutrino Problem. In this paper, the goals, techniques and status of the Borexino experiment are presented, as well as the program for calibrations and monitoring of the detector.

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