  The MUNU detector was designed to study neutrino-electron elastic scattering
at low energy. The central component is a Time Projection Chamber filled with
CF4 gas, surrounded by an anti-Compton detector. The experiment was carried out
at the Bugey (France) nuclear reactor. In this paper we present the final
analysis of the data recorded at 3 bar and 1 bar pressure. Both the energy and
the scattering angle of the recoil electron are measured. From the 3 bar data a
new upper limit on the neutrino magnetic moment was derived. At 1 bar electron
tracks down to 150 keV were reconstructed, demonstrating the potentiality of
the experimental technique for future applications in low energy neutrino
physics.
