A proposed solar neutrino experiment using 81Br(ν,e−)81Kr

It has now been show that it is feasible to measure the 7Be neutrino source in the sun by using the reaction 81Br(ν,e−)81Kr in a radiochemical experiment. Such an experiment would be quite similar to the Davis, Cleveland, and Rowley method for measuring the 8B neutrino using 37Cl(ν,e−)37Ar except that the resonance ionization spectroscopy (RIS) method (instead of decay counting) would be employed to count the 2×105‐yr 81Kr atoms.