title: Soft-x-ray spectra of highly charged Kr ions in an electron beam ion trap.
abstract: Systematic variation of the electron-beam energy in the EBIT-II electron beam ion trap has been employed to produce soft-x-ray spectra (20-75 A) of Kr with well-defined maximum charge states ranging from Cu- to Al-like ions. Guided by large-scale relativistic atomic structure calculations, the strongest lines have been identified with Delta n=1 (n=3 to n(')=4) transitions from Ni- to P-like ions (Kr(8+)-Kr(21+)), as well as a number of 3p-4d and 3d-5f transitions.
authors.affiliation: Department of Physics and Advanced Technologies, Lawrence Livermore National Laboratory, Livermore, California 94550-9234, USA.
authors.forename: H
authors.initials: H
authors.lastname: Chen
authors.forename: P
authors.initials: P
authors.lastname: Beiersdorfer
authors.forename: K B
authors.initials: KB
authors.lastname: Fournier
authors.forename: E
authors.initials: E
authors.lastname: Träbert