Non-equilibrium and equilibrium problems in laser-induced plasmas

Citation
M. Capitelli et al., Non-equilibrium and equilibrium problems in laser-induced plasmas, SPECT ACT B, 55(6), 2000, pp. 559-574
Citations number
30
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
ISSN journal
05848547 → ACNP
Volume
55
Issue
6
Year of publication
2000
Pages
559 - 574
Database
ISI
SICI code
0584-8547(20000609)55:6<559:NAEPIL>2.0.ZU;2-R
Abstract
Several problems which can determine non-equilibrium effects in laser-induc ed breakdown plasmas are analyzed in this study. In particular, we focus ou r attention on problems associated with the fluid dynamics of the expanding plume, with time-dependent collisional-radiative models for describing the population densities of excited states, with the time-dependent Boltzmann equation for characterizing the electron energy distribution function in la ser-induced breakdown spectroscopy (LIBS) plasmas, The results show that th ese problems should be carefully taken into account for developing a calibr ation-free LIES methodology. Finally, problems associated with equilibrium plasmas, and in particular the dependence of the partition function on the particular environment surrounding the different components of a plasma are discussed. (C) 2000 Elsevier Science B.V. All rights reserved.