Open AccessElectron-ion recombination of the open-4f-shell ion W19+
Author(s) -
N. R. Badnell,
K. Spruck,
Claude Krantz,
Oldřich Novotný,
Andreas Becker,
D. Bernhardt,
M. Grieser,
Michael Hahn,
R. Repnow,
D. W. Savin,
A. Wolf,
A. Müller,
S. Schippers
Publication year - 2015
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/635/5/052003
Subject(s) - recombination , ion , atomic physics , electron , tungsten , storage ring , physics , chemistry , nuclear physics , beam (structure) , biochemistry , organic chemistry , quantum mechanics , optics , gene
Electron-ion recombination of W19+ forming W18+ has been studied both experimentally and theoretically. An exceptionally large recombination rate coefficient was observed by the storage-ring experiment at zero electron-ion collision energy. It exceeds the expectation for nonresonant radiative recombination (RR) by more than two orders of magnitude. This follows the pattern seen previously for the neighboring charge states of tungsten. The results of our present theoretical calculations, which were carried-out within the Breit-Wigner partitioned framework for resonant electron-ion recombination of complex ions, agree with this observation