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Revealing of hydrodynamic and electrostatic factors in the center-of-mass velocity of an expanding plasma generated by pulsed laser ablation
- 1.0361429 - FZÚ 2012 RIV US eng J - Journal Article
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. E-ISSN 1469-803X
R&D Projects: GA MŠMT(CZ) LC528
EU Projects: European Commission(XE) 228334 - LASERLAB-EUROPE
Institutional research plan: CEZ:AV0Z10100523
Keywords : angular distribution of ions * Faraday cup signal function * partial ion currents
Subject RIV: BH - Optics, Masers, Lasers
Impact factor: 1.623, year: 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.
Permanent Link: http://hdl.handle.net/11104/0198741
Number of the records: 1