“…The FDCS for the single ionization of helium by 2 MeV u −1 C 6+ was measured for electrons ejected into the zx plane [10,12]. The experimental data were analyzed by various theoretical models [12,25,35,[56][57][58][59], where the conventional (unconvoluted) FDCSs were evaluated except in reference [35]. Figure 5 shows FDCSs for ε e =1, 4, and 10 eV and for q′=0.45, 0.65, 1.0, and 1.5.…”