TY - DATA T1 - The magnified threshold energy range of the cross section of Sn6 + PY - 2013/08/07 AU - A Borovik Jr AU - M F Gharaibeh AU - P M Hillenbrand AU - S Schippers AU - A Müller UR - https://iop.figshare.com/articles/figure/_The_magnified_threshold_energy_range_of_the_cross_section_of_Sn_sup_6_sup_/1012560 DO - 10.6084/m9.figshare.1012560.v1 L4 - https://ndownloader.figshare.com/files/1480382 KW - arrow b KW - ionization mechanisms KW - energy range KW - threshold energy range KW - charge states q KW - data KW - configuration KW - wave approximation KW - figure 2. KW - EA contributions KW - section KW - arrow c KW - Ionization plasma rate coefficients KW - Atomic Physics KW - Molecular Physics N2 - Figure 4. The magnified threshold energy range of the cross section of Sn6 +. Same notation as in figure 2. The vertical arrows indicate the energies of the predicted ground-state ionization threshold (arrow a), of the experimental threshold of the ground-state electron configuration (arrow b) and of an onset for calculated EA contributions (arrow c). Abstract Electron-impact single-ionization cross sections of Snq + ions in charge states q = 4–13 with 4d[10 − (q − 4)] outer-shell configurations have been studied in the energy range from the corresponding thresholds up to 1000 eV. Absolute cross sections and fine-step energy-scan data have been measured employing the crossed-beams technique. Contributions of different ionization mechanisms have been analysed by comparing the experimental data with calculations employing the configuration-averaged distorted wave approximation. Ionization plasma rate coefficients inferred from the experimental data are also presented. ER -