Intercombination transitions in beryllium-like and boron-like iron

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Published under licence by IOP Publishing Ltd
, , Citation R Hutton et al 1997 Phys. Scr. 55 431 DOI 10.1088/0031-8949/55/4/009

1402-4896/55/4/431

Abstract

Beam-foil spectroscopy techniques have been used to study intercombination transitions in Be-like Fe22+ and B-like Fe21+. The method of time delayed spectroscopy was used to identify the Be-like 2s2 1S0-2s2p 3P1 and B-like 2s22p 2P3/2-2s2p2 4P5/2 transitions. Intensity decay curves for these transitions were recorded and level lifetimes were obtained. The latter were found to be 17.5 ± 1.5 ns for the Be-like 2s2p 3P1 level and 14.8 ± 1.0 ns for the B-like 2s2p2 4P5/2 level.

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10.1088/0031-8949/55/4/009