Abstract
Electron anti-neutrinos produced by natural radioactivity inside the Earth - geoneutrinos - can be used as a unique direct probe in order to determine the amount of long-lived radioactive elements inside our planet and to constrain the radiogenic contribution to the terrestrial heat. The large volume liquid scintillator detectors, originally built to measure neutrinos or anti-neutrinos from other sources, are capable to detect them, as was demonstrated by KamLAND (Japan) in 2005 for the first time. Since then geoneutrinos were measured with high statistical significance both by the KamLAND (Japan) and by Borexino (Italy) underground experiments. Several future projects of large volume detectors have geoneutrinos among their scientific goals. The status-of-art and scientific potential of this new inter-disciplinary field was presented.
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