Author:
Rohlena K.,Králiková B.,Krása J.,Láska L.,Mašek K.,Pfeifer M.,Skála J.,Farny J.,Parys P.,Wołowski J.,Woryna E.,Mróz W.,Roudskoy I.,Shamaev O.,Sharkov B.,Shumshurov A.,Bryunetkin B.A.,Haseroth H.,Collier J.,Kuttenbeger A.,Langbein K.,Kugler H.
Abstract
Results are presented of experiments on ion production from Ta targets using a short pulse (350–600 ps in focus) illumination with focal power densities exceeding 1014 Wcm-2 at the wavelength of an iodine photodissociation laser (1.315 μm) and its harmonics. Strong evidence of the existence of tantalum ions with the charge state +45 near the target surface was obtained by X-ray spectroscopy methods. The particle diagnostics point to the existence of frozen high charge states (<53+) of Ta ions in the far expansion zone at about 2 m from the target. The measured charge state-ion energy distribution indicates the highest energy (>4 MeV) for the highest observed charge states. A tentative theoretical explanation of the observed anomalous charge state freezing phenomenon in the expanding plasma produced by a subnanosecond laser pulse is given.
Subject
Electrical and Electronic Engineering,Condensed Matter Physics,Atomic and Molecular Physics, and Optics
Reference15 articles.
1. Roudskoy I. 1993 Ph.D. Thesis, ITEP, Moscow.
2. Analysis of experiments on energetic ions from laser produced plasmas with reference to hot electrons and pulsation
3. Farny J. 1985 Ph.D. Thesis, Military Academy of Technology, Warsaw.
Cited by
30 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
1. Self-similar two-electron temperature plasma expansion into vacuum;Laser and Particle Beams;2015-10-20
2. Spark discharge coupled laser multicharged ion source;Review of Scientific Instruments;2015-07
3. Collective electron interaction at ultrafast acceleration of plasma blocks;High-Power, High-Energy, and High-Intensity Laser Technology; and Research Using Extreme Light: Entering New Frontiers with Petawatt-Class Lasers;2013-05-07
4. Electron kinetics in a laser plasma with increased collisionality;Radiation Effects and Defects in Solids;2010-10
5. Novel features of non-linear Raman instability in a laser plasma;The European Physical Journal D;2009-11-06