%0 Generic %A Borovik Jr, A %A M F Gharaibeh %A P M Hillenbrand %A S Schippers %A Müller, A %D 2013 %T Fitting parameters ai of the fifth-order polynomial alpha (T_{e}) = sum ^5_{i=0} a_i T_e^i and scaling parameters E0 to reproduce the scaled PRC for Sn4 + through Sn13 + ions %U https://iop.figshare.com/articles/dataset/_Fitting_parameters_em_a_sub_i_sub_em_of_the_fifth_order_polynomial_span_xmlns_xlink_http_www_w3_org/1012573 %R 10.6084/m9.figshare.1012573.v1 %2 https://ndownloader.figshare.com/files/1480395 %K prc %K square brackets %K ionization mechanisms %K charge states q %K Sn 4 %K data %K wave approximation %K energy range %K Ionization plasma rate coefficients %K parameters E 0 %K Sn 13 %K section %K Atomic Physics %K Molecular Physics %X

Table 3. Fitting parameters ai of the fifth-order polynomial \alpha (T_{e}) = \sum ^5_{i=0} a_i T_e^i and scaling parameters E0 to reproduce the scaled PRC for Sn4 + through Sn13 + ions. The numbers in square brackets are powers of 10 to be multiplied with the preceding numbers, respectively.

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.

%I IOP Publishing