On the measurement of electrons in the 5–20 MeV range in liquids

Recent approaches to solve the solar neutrino problem comprise both new theoretical ideas and newly developed techniques for huge underground detectors. The investigation of electrons produced by neutrinos from the 8B decay is particularly interesting. Earlier bubble chamber photographs of electron tracks (5–20 MeV) in two liquids, the measurements of their energy and direction, may help to optimize the design of these detectors.