THE CR-51 NEUTRINO SOURCE AND BOREXINO - A DESIRABLE MARRIAGE

Exposure to a Cr-51 neutrino source as that used in Gallex win provide an excellent overall performance test of Borexino, which should colle ct about 1400 source induced events, with an initial rate of about 35 counts per day. This will be particularly important if MSW-small-angle turns out to be the solution of the solar neutrino problem. In additi on, if an independent, accurate calibration is available, one will hav e an interesting experiment on neutrino properties: as an example, a n eutrino magnetic moment of the order 5 . 10(-11) mu(B) could be detect ed/excluded at the 90% C.L.