X-ray emission of a xenon gas jet plasma diagnosed with Thomson scattering

Claude Chenais-Popovics (1) , Victor Malka (1) , J.-C. Gauthier (1) , S. Gary (2) , O. Peyrusse (2) , M. Rabec-Le Gloahec (2) , I. Matsushima (3) , C. Bauche-Arnoult (4) , A. Bachelier (4) , J. Bauche (4)

1 LULI - Laboratoire pour l'utilisation des lasers intenses
2 DPTA - Département de Physique Théorique et Appliquée
3 IS AIST - Intelligent Systems Institute [Tsukuba]
4 LAC - Laboratoire Aimé Cotton

We present the results of a benchmark experiment aimed at validating recent calculation techniques for the emission properties of medium and high-Z multicharged ions in hot plasmas. We use space- and time-resolved M-shell x-ray spectroscopy of a laser-produced gas jet xenon plasma as a primary diagnostic of the ionization balance dynamics. We perform measurements of the electron temperature, electron density, and average charge state by recording simultaneous spectra of ion acoustic and electron plasma wave Thomson scattering. A comparison of the experimental x-ray spectra with calculations performed ab initio with a non-local-thermodynamic-equilibrium collisional-radiative model based on the superconfiguration formalism, using the measured plasma parameters, is presented and discussed.

Domaines: Optique [physics.optics]

Claude Chenais-Popovics, Victor Malka, J.-C. Gauthier, S. Gary, O. Peyrusse, et al.. X-ray emission of a xenon gas jet plasma diagnosed with Thomson scattering. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2002, 65 (4), pp.046418. ⟨10.1103/PhysRevE.65.046418⟩. ⟨hal-00519011⟩