Shot-to-shot reproducibility in the emission of fast highly charged metal ions from a laser ion source

0377587 - FZÚ 2013 RIV US eng J - Journal Article
Krása, Josef - Velyhan, Andriy - Margarone, Daniele - Krouský, Eduard - Láska, Leoš - Jungwirth, Karel - Rohlena, Karel - Ullschmied, Jiří - Parys, P. - Ryc, L. - Wolowski, J.
Shot-to-shot reproducibility in the emission of fast highly charged metal ions from a laser ion source.
Review of Scientific Instruments. Roč. 83, č. 2 (2012), , "02B302-1"-"02B302-3". ISSN 0034-6748. E-ISSN 1089-7623
R&D Projects: GA ČR(CZ) GAP205/11/1165; GA MŠMT(CZ) 7E09092; GA MŠMT(CZ) LC528
EU Projects: European Commission(XE) 228334 - LASERLAB-EUROPE
Institutional research plan: CEZ:AV0Z10100523; CEZ:AV0Z20430508
Keywords : ion sources * palladium * plasma sources * gold * plasma production by laser
Subject RIV: BH - Optics, Masers, Lasers
Impact factor: 1.602, year: 2012

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 × 1016 W/cm2. Above the laser intensity threshold of similar to 3 × 1014 W/cm2 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.
Permanent Link: http://hdl.handle.net/11104/0209706