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Ionisation and charge transfer in collisions of H+ and He2+ with lithium

M B Shah, D S Elliott and H B Gilbody

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A crossed-beam coincidence technique has been used to determine cross sections for single and double ionisation of lithium by H+ and He2+ impact within the range 22-2100 keV amu-1. There have been no previous measurements and the results provide as assessment of theoretical predictions based on first Born, close-coupling and classical calculations. Estimates of the separate contributions to single ionisation from electrons in the L and K shells have been obtained from the measured cross sections. Cross sections for one-electron capture have also been determined together with cross sections for transfer ionisation.


PACS

34.50.Fa Electronic excitation and ionization of atoms (including beam-foil excitation and ionization)

34.70.+e Charge transfer

Subjects

Atomic and molecular physics

Dates

Issue 21 (14 November 1985)



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