Journal article

Publication year: 1999

Pages: 3627-3639

Journal: Journal of Physics B: Atomic, Molecular and Optical Physics

Volume number: 32

Issue number: 15

ISSN: 0953-4075

DOI Link: https://doi.org/10.1088/0953-4075/32/15/301

Publisher: IOP Publishing

Abstract: 
Employing the animated crossed-beams technique, absolute cross sections for electron impact single ionization of the iron isonuclear sequence are measured for charge states q = 1-6 for electron energies from threshold up to I keV, as well as for the intermediate charge states q = 9, 10 up to an electron energy of 5 keV. The cross sections observed for Feq+ ions in charge states q = 1-4, 9 and 10 show a significant ionization signal below the respective ground state threshold resulting from ions in excited, long-lived metastable states in the parent ion beam. In the case of Fe5+ and Fe6+ no metastable components are found. The experimental results are in good agreement with the theoretical predictions if excitation-autoionization processes are taken into account. Our measured cross sections are also in good agreement with experimental results of other groups.

Harvard Citation style: Stenke, M., Aichele, K., Hartenfeller, U., Hathiramani, D., Steidl, M. and Salzborn, E. (1999) Electron impact single ionization of multiply charged iron ions, Journal of Physics B: Atomic, Molecular and Optical Physics, 32(15), pp. 3627-3639. https://doi.org/10.1088/0953-4075/32/15/301

APA Citation style: Stenke, M., Aichele, K., Hartenfeller, U., Hathiramani, D., Steidl, M., & Salzborn, E. (1999). Electron impact single ionization of multiply charged iron ions. Journal of Physics B: Atomic, Molecular and Optical Physics. 32(15), 3627-3639. https://doi.org/10.1088/0953-4075/32/15/301