Low energy tracking and particles identification in the MUNU Time Projection Chamber at 1 bar: possible application in low energy solar neutrino spectroscopy

In this paper we present the results from the measurements made with the MUNU Time Projection Chamber (TPC) at 1 bar pressure of CF(4) in the energy region below 1 MeV. Electron events down to 80 keV are successfully measured. The electron energy and direction are reconstructed for every contained single electron above 200 keV. As a test the (137)Cs photopeak is reconstructed by measuring both the energy and direction of the Compton electrons in the TPC.