Journal article

Publication year: 2004

Pages: 1503-1518

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

Volume number: 37

Issue number: 7

ISSN: 0953-4075

eISSN: 1361-6455

DOI Link: https://doi.org/10.1088/0953-4075/37/7/011

Publisher: IOP Publishing

Abstract: 
Absolute cross sections for single, double and triple electron-impact ionization of Mg+ ions have been measured by employing a crossed-beams experimental set-up. Contributions of indirect resonant processes to the total cross section for single ionization such as resonant-excitation-double-autoionization and resonant-excitation-auto-double-ionization have been observed utilizing a high-resolution energy scan technique with statistical uncertainties as low as 0.04%. The experimental cross sections are compared with results of recent R-matrix calculations showing agreement in the overall features but pronounced differences in the details of indirect ionization contributions. Double ionization was found to be dominated by the direct removal of a 2p-electron with subsequent autoionization. There are also indications of indirect processes in the triple ionization of Mg+ but no clear evidence could be established.

Harvard Citation style: Becker, C., Knopp, H., Jacobi, J., Teng, H., Schippers, S. and Müller, A. (2004) Electron-impact single and multiple ionization of Mg+ ions, Journal of Physics B: Atomic, Molecular and Optical Physics, 37(7), Article PII S0953-4075(04)74491-0. pp. 1503-1518. https://doi.org/10.1088/0953-4075/37/7/011

APA Citation style: Becker, C., Knopp, H., Jacobi, J., Teng, H., Schippers, S., & Müller, A. (2004). Electron-impact single and multiple ionization of Mg+ ions. Journal of Physics B: Atomic, Molecular and Optical Physics. 37(7), Article PII S0953-4075(04)74491-0, 1503-1518. https://doi.org/10.1088/0953-4075/37/7/011