Počet záznamů: 1

Generation of high currents of carbon ions with the use of subnanosecond near-infrared laser pulses

  1. 1.
    0342497 - FZU-D 2011 RIV US eng J - Článek v odborném periodiku
    Krása, Josef - Velyhan, Andriy - Margarone, Daniele - Krouský, Eduard - Ullschmied, Jiří - Skála, Jiří - Láska, Leoš - Jungwirth, Karel - Rohlena, Karel
    Generation of high currents of carbon ions with the use of subnanosecond near-infrared laser pulses.
    Review of Scientific Instruments. Roč. 81, č. 2 (2010), 02A504/1-02A504/3 ISSN 0034-6748
    Grant CEP: GA AV ČR IAA100100715
    Výzkumný záměr: CEZ:AV0Z10100523; CEZ:AV0Z20430508
    Klíčová slova: carbon * graphite * optical self-focusing * plasma production by laser * time of flight spectra
    Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
    Impakt faktor: 1.598, rok: 2010

    Emission of carbon currents reaching values up to 2 A/cm2 at a distance of 1 m from the laser ion source driven by the subnanosecond Prague Asterix Laser System operated at a fundamental wavelength of 1315 nm is reported. Graphite targets were exposed to intensities up to 5 x 1016 W/cm2 varying both the laser energy and the position of the laser beam focus with respect to the target surface. The maximum energy gain of carbon ions was ~1 MeV/u. At high laser intensities the shape of time-of-flight spectra is also formed by plasma outbursts, whose growth correlates with the oscillatory self-focusing of the laser beam.
    Trvalý link: http://hdl.handle.net/11104/0185217