Energy gain spectroscopy studies of electron capture by Xeq+ (10⩽q⩽20) in collisions with Ne, Ar and Xe

Energy gain spectra have been recorded for 1 keV Xeq+ (10<or=q<or=20) ions colliding with Ne, Ar and Xe The spectra contain information on which groups of states are populated in single, double and triple capture but give no information on capture into specific states. The results obtained are compared with calculations based on an extension of the classical over-barrier model; measured energy gains and absolute cross sections compare quite reasonably with the model estimates.

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