Eur. Phys. J. D 20, 269-274 (2002)
https://doi.org/10.1140/epjd/e2002-00125-0

Advanced simulations of spectroscopic signatures of charge exchange in laser-produced plasmas

¹ Physique Atomique dans les Plasmas Denses (LULI Unité mixte No. 7605) , CNRS-École Polytechnique-CEA-Université Paris-VI, Case 128, 4 place Jussieu, 75252 Paris Cedex 05, France
² Physics Department, 206 Allison Lab., Auburn University, Auburn AL 36849, USA
³ Instituto de Fusión Nuclear, E.T.S. de Ingenieros Industriales U.P.M., Jose Gutierrez Abascal, 2 – 28006 Madrid, Spain

Corresponding author: ^a lebda@moka.ccr.jussieu.fr

Received: 25 March 2002
Published online: 19 July 2002

Abstract

We present an advanced theory of charge-exchange-caused dips (also called X-dips) in spectral lines from laser-produced plasmas. We compare predictions of this advanced theory with our previously published experimental results where, in the process of a laser irradiation of targets made out of aluminum carbide, we observed two X-dips in the line of Al XIII perturbed by fully stripped carbon. We show that our advanced theory is in excellent agreement with our experimental results. From the practical point of view, our results open up a way to experimentally produce not-yet-available fundamental data on charge exchange between multicharged ions, virtually inaccessible by other experimental methods. From the theoretical viewpoint, the results are important because the X-dips are the only one signature of charge exchange in profiles of spectral lines emitted by plasmas and they are the only one quasimolecular phenomenon that could be observed at relatively “low” densities of laser-produced plasmas.