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Collision-induced intra-shell transitions in He-like ions

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T Nandi

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We report collision-induced intra-shell transitions for the first time. It has been observed between two close by levels 1s2s 3S1 and 1s2p3Po2 in He-like Ti ions by the beam-two-foil time-of-flight technique. The mean collision-induced transition probability between these two levels is found to be quite large (0.72 ± 0.05/collision), which is attributable to the small energy splittings (32 eV) between them.


PACS

32.10.Fn Fine and hyperfine structure

32.30.Rj X-ray spectra

32.70.Cs Oscillator strengths, lifetimes, transition moments

Subjects

Atomic and molecular physics

Dates

Issue 6 (28 March 2009)

Received 22 December 2008, in final form 17 January 2009

Published 9 March 2009



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