title: Explosions of xenon clusters in ultraintense femtosecond x-ray pulses from the LCLS free electron laser.
abstract: Explosions of large Xe clusters (<N> ~ 11,000) irradiated by femtosecond pulses of 850 eV x-ray photons focused to an intensity of up to 10(17) W/cm(2) from the Linac Coherent Light Source were investigated experimentally. Measurements of ion charge-state distributions and energy spectra exhibit strong evidence for the formation of a Xe nanoplasma in the intense x-ray pulse. This x-ray produced Xe nanoplasma is accompanied by a three-body recombination and hydrodynamic expansion. These experimental results appear to be consistent with a model in which a spherically exploding nanoplasma is formed inside the Xe cluster and where the plasma temperature is determined by photoionization heating.
authors.affiliation: Texas Center for High Intensity Laser Science, University of Texas, Austin, Texas 78712, USA.
authors.forename: H
authors.initials: H
authors.lastname: Thomas
authors.forename: A
authors.initials: A
authors.lastname: Helal
authors.forename: K
authors.initials: K
authors.lastname: Hoffmann
authors.forename: N
authors.initials: N
authors.lastname: Kandadai
authors.forename: J
authors.initials: J
authors.lastname: Keto
authors.forename: J
authors.initials: J
authors.lastname: Andreasson
authors.forename: B
authors.initials: B
authors.lastname: Iwan
authors.forename: M
authors.initials: M
authors.lastname: Seibert
authors.forename: N
authors.initials: N
authors.lastname: Timneanu
authors.forename: J
authors.initials: J
authors.lastname: Hajdu
authors.forename: M
authors.initials: M
authors.lastname: Adolph
authors.forename: T
authors.initials: T
authors.lastname: Gorkhover
authors.forename: D
authors.initials: D
authors.lastname: Rupp
authors.forename: S
authors.initials: S
authors.lastname: Schorb
authors.forename: T
authors.initials: T
authors.lastname: Möller
authors.forename: G
authors.initials: G
authors.lastname: Doumy
authors.forename: L F
authors.initials: LF
authors.lastname: DiMauro
authors.forename: M
authors.initials: M
authors.lastname: Hoener
authors.forename: B
authors.initials: B
authors.lastname: Murphy
authors.forename: N
authors.initials: N
authors.lastname: Berrah
authors.forename: M
authors.initials: M
authors.lastname: Messerschmidt
authors.forename: J
authors.initials: J
authors.lastname: Bozek
authors.forename: C
authors.initials: C
authors.lastname: Bostedt
authors.forename: T
authors.initials: T
authors.lastname: Ditmire