title: Investigation of the 2p_{32}-3d_{52} line emission of Au;{53+}-Au;{69+} for diagnosing high energy density plasmas.
abstract: Measurements of the L -shell emission of highly charged gold ions were made under controlled laboratory conditions using the SuperEBIT electron beam ion trap, allowing detailed spectral observations of lines from Fe-like Au53+ through Ne-like Au69+ . Using atomic data from the Flexible Atomic Code, we have identified strong 3d_{52}-->2p_{32} emission features that can be used to diagnose the charge state distribution in high energy density plasmas, such as those found in the laser entrance hole of hot hohlraum radiation sources. We provide collisional-radiative calculations of the average ion charge Z as a function of temperature and density, which can be used to relate charge state distributions inferred from 3d_{52}-->2p_{32} emission features to plasma conditions, and investigate the effects of plasma density on calculated L -shell Au emission spectra.
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, California 94550-9234, USA.
authors.forename: G V
authors.initials: GV
authors.lastname: Brown
authors.forename: S B
authors.initials: SB
authors.lastname: Hansen
authors.forename: E
authors.initials: E
authors.lastname: Träbert
authors.forename: P
authors.initials: P
authors.lastname: Beiersdorfer
authors.forename: K
authors.initials: K
authors.lastname: Widmann
authors.forename: H
authors.initials: H
authors.lastname: Chen
authors.forename: H K
authors.initials: HK
authors.lastname: Chung
authors.forename: J H T
authors.initials: JH
authors.lastname: Clementson
authors.forename: M F
authors.initials: MF
authors.lastname: Gu
authors.forename: D B
authors.initials: DB
authors.lastname: Thorn