title: Enhanced Kα output of Ar and Kr using size optimized cluster target irradiated by high-contrast laser pulses.
abstract: We observed that increasing the clusters size and laser pulse contrast can enhance the X-ray flux emitted by femtosecond-laser-driven-cluster plasma. By focusing a high contrast laser (10(-10)) on large argon clusters, high flux Kα-like X-rays (around 2.96 keV) is generated with a total flux of 2.5 × 10(11) photons/J in 4π and a conversion efficiency of 1.2 × 10-4. In the case of large Kr clusters, the best total flux for L-shell X-rays is 5.3 × 1011 photons/J with a conversion efficiency of 1.3 × 10-4 and, for the Kα X-ray (12.7 keV), it is 8 × 10(8) photons/J with a conversion efficiency of 1.6 × 10-6. Using this X-ray source, a single-shot high-performance X-ray imaging is demonstrated.
authors.affiliation: Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing, China.
authors.forename: Lu
authors.initials: L
authors.lastname: Zhang
authors.forename: Li-Ming
authors.initials: LM
authors.lastname: Chen
authors.forename: Da-Wei
authors.initials: DW
authors.lastname: Yuan
authors.forename: Wen-Chao
authors.initials: WC
authors.lastname: Yan
authors.forename: Zhao-Hua
authors.initials: ZH
authors.lastname: Wang
authors.forename: Cheng
authors.initials: C
authors.lastname: Liu
authors.forename: Zhong-Wei
authors.initials: ZW
authors.lastname: Shen
authors.forename: Anatoly
authors.initials: A
authors.lastname: Faenov
authors.forename: Tatiana
authors.initials: T
authors.lastname: Pikuz
authors.forename: Igor
authors.initials: I
authors.lastname: Skobelev
authors.forename: Vladimir
authors.initials: V
authors.lastname: Gasilov
authors.forename: Alexei
authors.initials: A
authors.lastname: Boldarev
authors.forename: Jing-Yi
authors.initials: JY
authors.lastname: Mao
authors.forename: Yu-Tong
authors.initials: YT
authors.lastname: Li
authors.forename: Quan-Li
authors.initials: QL
authors.lastname: Dong
authors.forename: Xin
authors.initials: X
authors.lastname: Lu
authors.forename: Jing-Long
authors.initials: JL
authors.lastname: Ma
authors.forename: Wei-Ming
authors.initials: WM
authors.lastname: Wang
authors.forename: Zheng-Ming
authors.initials: ZM
authors.lastname: Sheng
authors.forename: Jie
authors.initials: J
authors.lastname: Zhang
mesh_terms: D001128:Argon / Q000737:chemistry* / Q000528:radiation effects*; D007726:Krypton / Q000737:chemistry* / Q000528:radiation effects*; D007834:Lasers; D008027:Light; D012542:Scattering, Radiation
chemical_list: D007726:Krypton; D001128:Argon