Armenian Journal of Physics

RADIATIVE TRANSITIONS IN STRONGLY COUPLED LASER-GENERATED PLASMAS

Nersisyan, H. B. and Toepffer, C. and Matevosyan, H. H. (2008) RADIATIVE TRANSITIONS IN STRONGLY COUPLED LASER-GENERATED PLASMAS. Armenian Journal of Physics, 1 (3). pp. 198-207. ISSN 1829-1171

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Abstract

The spectral line shapes for hydrogen-like heavy ion emitters embedded in strongly correlated two-component electron-ion plasmas are investigated with numerical simulations. For that purpose the microfield fluctuations are calculated by molecular dynamics simulations where short range quantum effects are taken into account by using a regularized Coulomb potentialfor the electron-ion interaction. The microfield fluctuations are used as input in a numerical solution of the time-dependent Schrödinger equation for the radiating electron. In distinction to the standard impact and quasistatic approximations the method presented here allows to account for the correlations between plasma ions and electrons. The shape of the Lyα-line in Al is investigated in the intermediate regime. The calculations are in good agreement with experiments on the Lyα-line in laser generated Al plasmas.

Item Type:Article
Uncontrolled Keywords:X-ray spectra; line broadening; strongly coupled plasmas; molecular dynamics simulations
Subjects:Physics > 50.Physics of gases, plasmas, and electric discharges
ID Code:52
Deposited By:Prof. Hrachya Nersisyan
Deposited On:30 Sep 2008 15:31
Last Modified:19 Apr 2011 02:40

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