Improving the dicenter model for hot dense plasmas: molecular stark effect
| Autor: | Patrick Sauvan, Annette Calisti, E. Mínguez, P. Angelo, E. Leboucher-Dalimier |
|---|---|
| Přispěvatelé: | Laboratoire pour l'utilisation des lasers intenses (LULI), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Physique des interactions ioniques et moléculaires (PIIM), Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU), Universidad Politécnica de Madrid (UPM), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2001 |
| Předmět: |
[PHYS]Physics [physics]
Work (thermodynamics) Range (particle radiation) Radiation Materials science Ionic bonding Electron Plasma 01 natural sciences Atomic and Molecular Physics and Optics 010305 fluids & plasmas Ion symbols.namesake Stark effect Physics::Plasma Physics 0103 physical sciences symbols Atomic physics 010306 general physics Spectroscopy Quasistatic process |
| Zdroj: | Journal of Quantitative Spectroscopy and Radiative Transfer Journal of Quantitative Spectroscopy and Radiative Transfer, Elsevier, 2001, 71 (2-6), pp.675-687. ⟨10.1016/S0022-4073(01)00108-X⟩ Journal of Quantitative Spectroscopy and Radiative Transfer, 2001, 71 (2-6), pp.675-687. ⟨10.1016/S0022-4073(01)00108-X⟩ |
| ISSN: | 0022-4073 |
| DOI: | 10.1016/s0022-4073(01)00108-x |
| Popis: | International audience; In previous work of the dicenter model, used to take into account the ionic correlation effects in hot dense plasmas, only considered a single perturbing ion (i.e., the nearest neighbor ion) thus limiting its range of applicability. The improvement proposed in the present work includes the effect of all perturbing ions through a quasistatic external microfield acting on a ``quasi-molecule''. This enlarges the domain of validity of the dicenter model. For low densities this new alternative model gives line widths in agreement with standard ``monocenter'' profiles without artificially reducing the electron screening inside the dicenter emitting cell. This reduced screening, which had been employed to treat the repulsive interactions between the quasi-molecule and the other perturbing ions, is removed in the present work. (C) 2001 Elsevier Science Ltd. All rights reserved. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect