Single and double electron detachment cross sections for C− incident on helium

With growth rate method, double electron detachment (DED) cross-sections for 4-15 keV H−+He are reported in this paper and are in agreement with other available experiment results. And for the first time, Single Electron Detachment (SED) cross-sections for 5-30 keV C−+He, Double Electron Detachment (DED) cross-sections for 5-15 keV C−+He are obtained in this work. The SED cross-sections at first increase as the incident ions energy increases, and then decrease as the energy is further increased in 5-30 keV. The DED cross-sections increase as the incident energy increases in the region 5-15 keV.