title: Shot-to-shot reproducibility in the emission of fast highly charged metal ions from a laser ion source.
abstract: The generation of fast highly charged metal ions with the use of the sub-nanosecond Prague Asterix Laser System, operated at a fundamental wavelength of 1315 nm, is reported. Particular attention is paid to shot-to-shot reproducibility in the ion emission. Au and Pd targets were exposed to intensities up to 5 × 10(16) W∕cm(2). Above the laser intensity threshold of ∼3 × 10(14) W∕cm(2) the plasma is generated in a form of irregular bursts. The maximum energy of protons constituting the leading edge of the fastest burst reaches a value up to 1 MeV. The fast ions in the following bursts have energy gradually decreasing with the increasing burst number, namely, from a value of about 0.5 MeV∕charge regardless of the atomic number and mass of the ionized species.
authors.affiliation: Institute of Physics, AS CR, v.v.i., 182 21 Prague 8, Czech Republic. krasa@fzu.cz
authors.forename: J
authors.initials: J
authors.lastname: Krása
authors.forename: A
authors.initials: A
authors.lastname: Velyhan
authors.forename: D
authors.initials: D
authors.lastname: Margarone
authors.forename: E
authors.initials: E
authors.lastname: Krouský
authors.forename: L
authors.initials: L
authors.lastname: Krouský
authors.forename: K
authors.initials: K
authors.lastname: Jungwirth
authors.forename: K
authors.initials: K
authors.lastname: Rohlena
authors.forename: J
authors.initials: J
authors.lastname: Ullschmied
authors.forename: P
authors.initials: P
authors.lastname: Parys
authors.forename: L
authors.initials: L
authors.lastname: Ryć
authors.forename: J
authors.initials: J
authors.lastname: Wołowski