Journal article

Publication year: 1999

Pages: 3641-3649

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

Volume number: 32

Issue number: 15

ISSN: 0953-4075

DOI Link: https://doi.org/10.1088/0953-4075/32/15/302

Publisher: IOP Publishing

Abstract: 
Using the crossed-beams technique, cross sections for electron impact double ionization of Feq+ ions in charge states q = 1-6 (except 2) are measured in the energy range from the respective ionization thresholds up to 1 keV, partly up to 5 keV. The data for Fe4+ Fe5+ and Fe6+ show significant contributions from inner-shell processes. Using a high-resolution energy-scan technique, we study narrow resonances in the cross sections for Fe4+ and Fe5+. Besides contributions from excitation-autoionization processes, a remarkable number of structures arising from resonant-excitation triple-autoionization processes are observed. The results are compared with the scaling laws of Fisher et al and the semiempirical formula published by Shevelko and Tawara, respectively.

Harvard Citation style: Stenke, M., Hartenfeller, U., Aichele, K., Hathiramani, D., Steidl, M. and Salzborn, E. (1999) Electron impact double ionization of multiply charged iron ions, Journal of Physics B: Atomic, Molecular and Optical Physics, 32(15), pp. 3641-3649. https://doi.org/10.1088/0953-4075/32/15/302

APA Citation style: Stenke, M., Hartenfeller, U., Aichele, K., Hathiramani, D., Steidl, M., & Salzborn, E. (1999). Electron impact double ionization of multiply charged iron ions. Journal of Physics B: Atomic, Molecular and Optical Physics. 32(15), 3641-3649. https://doi.org/10.1088/0953-4075/32/15/302