Production of Cl− via dissociative electron attachment to Cl2

Abstract Dissociative electron attachment (DEA) experiments to Cl 2 are reported for the extended energy range between about 0 and 9 eV using a high-resolution crossed beam apparatus. A hemispherical electron monochromator is used to produce an electron beam with a small energy distribution. Electron currents of 20 nA at an electron energy of 20 eV with an energy resolution in the incident electron beam of about 80–150 meV full-width half-maximum (FWHM) were achieved. Three dissociative attachment processes peaking at slightly above 0, 2.53 and 5.64 eV were observed.