Distance-of-flight spectra of charge density of ions generated with a low laser intensity

0439946 - FZÚ 2015 RIV US eng C - Conference Paper (international conference)
Krása, Josef - Velardi, L. - Lorusso, A. - Delle Side, D. - Nassisi, V.
Distance-of-flight spectra of charge density of ions generated with a low laser intensity.
Journal of Physics: Conference Series. Vol. 508. Bristol: IOP Publishing, 2014, "012004-1"-"012004-5". ISSN 1742-6588.
[Plasma Physics by Laser and Applications 2013 Conference (PPLA2013). Lecce (IT), 02.10.2013-04.10.2013]
R&D Projects: GA MŠMT EE2.3.20.0279; GA ČR GAP205/12/0454
Grant - others:LaserZdroj (OP VK 3)(XE) CZ.1.07/2.3.00/20.0279
Institutional support: RVO:68378271
Keywords : laser ion sources * map of ion charge density * ion expansion * modeling
Subject RIV: BL - Plasma and Gas Discharge Physics

A charge density profile of ions emitted from a laser ion source is derived from a time-resolved current of ions collected with a time-of-flight detector. This relationship between the density profile over path of ions and an ion current observed far from the ion source is based on a similarity relationship for ion currents with “frozen” charges observed at different distances from the target. In this contribution, we present distance-of-flight spectra of the charge density of ions emitted from various plasmas driven by a Compex 205 KrF excimer laser (λ=248 nm,τFWHM=23ns) which works at laser irradiances between 108 and 1010 W/cm2.
Permanent Link: http://hdl.handle.net/11104/0243121