title: Spectroscopic characterization of an ultrashort-pulse-laser-driven Ar cluster target incorporating both Boltzmann and particle-in-cell models.
abstract: A model that solves simultaneously both the electron and atomic kinetics was used to generate a synthetic He alpha and satellite x-ray spectra to characterize a high intensity ultrashort laser driven Ar cluster target experiment. In particular, level populations were obtained from a detailed collisional-radiative model where collisional rates were computed from a time varying electron distribution function obtained from the solution of the zero-dimensional Boltzmann equation. In addition, a particle-in-cell simulation was used to model the laser interaction with the cluster target and provided the initial electron energy distribution function (EEDF) for the Boltzmann solver. This study suggests that a high density average, <Na>high, of 3.2 x 10(20) cm(-3) was held by the system for a time, delta tau, of 5.7 ps, and during this time the plasma was in a highly nonequilibrium state in both the EEDF and the ion level populations.
authors.affiliation: Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
authors.forename: M E
authors.initials: ME
authors.lastname: Sherrill
authors.forename: J
authors.initials: J
authors.lastname: Abdallah
authors.forename: G
authors.initials: G
authors.lastname: Csanak
authors.forename: E S
authors.initials: ES
authors.lastname: Dodd
authors.forename: Y
authors.initials: Y
authors.lastname: Fukuda
authors.forename: Y
authors.initials: Y
authors.lastname: Akahane
authors.forename: M
authors.initials: M
authors.lastname: Aoyama
authors.forename: N
authors.initials: N
authors.lastname: Inoue
authors.forename: H
authors.initials: H
authors.lastname: Ueda
authors.forename: K
authors.initials: K
authors.lastname: Yamakawa
authors.forename: A Ya
authors.initials: AY
authors.lastname: Faenov
authors.forename: A I
authors.initials: AI
authors.lastname: Magunov
authors.forename: T A
authors.initials: TA
authors.lastname: Pikuz
authors.forename: I Yu
authors.initials: IY
authors.lastname: Skobelev