Electron impact ionization of ground-state and metastable Li+ ions

Borovik Jr, A and Muller, A and Schippers, S and Bray, I and Fursa, D V. 2009. Electron impact ionization of ground-state and metastable Li+ ions. Journal of Physics B. 42 (2): pp. 025203.

Source Title

Journal of Physics B

DOI

10.1088/0953-4075/42/2/025203

ISSN

0953 4075

Faculty

Faculty of Science and Computing

School of Science and Computing

Department of Imaging and Applied Physics

Faculty of Science and Engineering

Remarks

URI

http://hdl.handle.net/20.500.11937/33139

Collection

Curtin Research Publications

Abstract

Direct ionization of ground-state Li+(1s2 1S0) and metastable Li+(1s2s 3S1) ions by electron impact has been studied in the energy range from threshold to 1000 eV using state-of-the-art experimental and theoretical approaches. Absolute cross sections obtained by crossing a beam of Li+(1s2) ions with a beam of electrons and results of convergent close coupling (CCC) calculations agree within experimental error bars of approximately 10%. Mixed beams of Li+(1s2) and Li+(1s2s 3S) ions were also prepared and apparent cross sections were measured. Good agreement with CCC theory is obtained assuming suitable fractions of metastable ions in the parent beam.