Počet záznamů: 1

Revealing of hydrodynamic and electrostatic factors in the center-of-mass velocity of an expanding plasma generated by pulsed laser ablation

  1. 1.
    0361429 - FZU-D 2012 RIV US eng J - Článek v odborném periodiku
    Krása, Josef - Lorusso, A. - Nassisi, V. - Velardi, L. - Velyhan, Andriy
    Revealing of hydrodynamic and electrostatic factors in the center-of-mass velocity of an expanding plasma generated by pulsed laser ablation.
    Laser and Particle Beams. Roč. 29, č. 1 (2011), s. 113-119 ISSN 0263-0346
    Grant CEP: GA MŠk(CZ) LC528
    GRANT EU: European Commission(XE) 228334 - LASERLAB-EUROPE
    Výzkumný záměr: CEZ:AV0Z10100523
    Klíčová slova: angular distribution of ions * Faraday cup signal function * partial ion currents
    Kód oboru RIV: BH - Optika, masery a lasery
    Impakt faktor: 1.623, rok: 2011

    Time-of-flight spectra of C, Fe, and Si ions produced with the use of a KrF excimer laser were analyzed. Responses of Faraday cups collecting the ions were analyzed with the use of a detector signal function, which was derived from shifted Maxwell-Boltzmann velocity distribution. The deconvolution method allowed to estimate parameters of partial currents of all the ionized species constituting the expanding plasma plume, such as the ion temperature and the center-of-mass velocities. Furthermore, the linear charge-state dependence of the center-of-mass velocity has revealed the contribution of hydrodynamic and electrostatic forces to the expansion velocity of the plasma.
    Trvalý link: http://hdl.handle.net/11104/0198741