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X-ray Thomson scattering cross-section in strongly correlated plasmas

Published online by Cambridge University Press:  22 April 2009

C. Fortmann ,
T. Bornath ,
R. Redmer ,
H. Reinholz ,
G. Röpke ,
V. Schwarz  and
R. Thiele
C. Fortmann*
Affiliation:
Institut für Physik, Universität Rostock, Rostock, Germany
T. Bornath
Affiliation:
Institut für Physik, Universität Rostock, Rostock, Germany
R. Redmer
Affiliation:
Institut für Physik, Universität Rostock, Rostock, Germany
H. Reinholz
Affiliation:
Institut für Physik, Universität Rostock, Rostock, Germany
G. Röpke
Affiliation:
Institut für Physik, Universität Rostock, Rostock, Germany
V. Schwarz
Affiliation:
Institut für Physik, Universität Rostock, Rostock, Germany
R. Thiele
Affiliation:
Institut für Physik, Universität Rostock, Rostock, Germany
*
Address correspondence and reprint requests to: Carsten Fortmann, Institut für Physik, Universität Rostock, 18051 Rostock, Germany E-mail: carsten.fortmann@uni-rostock.de
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Abstract

With the advent of intense, coherent light sources in the XUV and soft X-ray regime, X-ray Thomson scattering becomes a unique tool for the diagnostics of dense plasmas. The scattering spectrum gives direct access to plasma properties like density, temperature, and composition. In dense systems, collisions among constituents are of primary importance for the prediction and interpretation of the scattering signal. We present a systematic approach to the dynamical structure factor using the Born-Mermin ansatz to include collisions via the dynamical collision frequency. Calculations of the scattering spectrum are performed for X-ray scattering on solid and compressed beryllium targets as well as for XUV-photons scattering on hydrogen at near solid density.

Keywords

Born-Mermin approximationCollision frequencyDynamic structure factorThomson scattering

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Type
Research Article
Information
Laser and Particle Beams , Volume 27 , Issue 2 , June 2009 , pp. 311 - 319
Copyright
Copyright © Cambridge University Press 2009

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References

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