The Atmospheric and Solar Neutrino Experiment with the ICARUS T600 Detector

As a major achievement, after the completion of the detector construction in 2000, a full test of the ICARUS T600 experimental set-up, has been carried out in an external site, during 2001. The test. extended over about 100 days of continuous operation, has been successful. It showed that the ICARUS technology, providing high reconstruction capability for events even at low energy deposition level, is now fully operational at experimental level. In this paper, two of the main physics issues of the ICARUS T600 programme, the solar model independent study of solar neutrinos and the detection of atmospheric neutrinos, are also reviewed.