https://doi.org/10.1051/epjconf/20135913009
Modelling Thomson scattering for systems with non-equilibrium electron distributions
1 Plasma Physics Department, AWE plc, Aldermaston RG7 4PR, UK
2 CFSA, Department of Physics, University of Warwick, Coventry CV4 7AL, UK
a e-mail: david.chapman@awe.co.uk
Published online: 15 November 2013
We investigate the effect of non-equilibrium electron distributions in the analysis of Thomson scattering for a range of conditions of interest to inertial confinement fusion experiments. Firstly, a generalised one-component model based on quantum statistical theory is given in the random phase approximation (RPA). The Chihara expression for electron-ion plasmas is then adapted to include the new non-equilibrium electron physics. The theoretical scattering spectra for both diffuse and dense plasmas in which non-equilibrium electron distributions are expected to arise are considered. We find that such distributions strongly influence the spectra and are hence an important consideration for accurately determining the plasma conditions.
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
