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Simulation of X-ray scattering diagnostics in multi-dimensional plasma
Authors:Igor Golovkin  Joseph J. MacFarlane  Pamela Woodruff  Iain Hall  Gianluca Gregori  James Bailey  Eric Harding  Tom Ao  Siegfried Glenzer
Affiliation:1. Prism Computational Sciences, Inc., 455 Science Dr, Suite 140, Madison, WI 53711, USA;2. Department of Physics, University of Oxford, Oxford OX1 3PU, UK;3. Sandia National Laboratories, P.O. Box 5800, Albuquerque, NM 87185, USA;4. SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, USA
Abstract:X-ray scattering is a powerful diagnostic technique that has been used in a variety of experimental settings to determine the temperature, density, and ionization state of warm dense matter. In order to maximize the intensity of the scattered signal, the x-ray source is often placed in close proximity to the target plasma. Therefore, the interpretation of the experimental data can become complicated by the fact that the detector records photons scattered at different angles from points within the plasma volume. In addition, the target plasma that is scattering the x-rays can have significant temperature and density gradients. To address these issues, we have developed the capability to simulate x-ray scattering for realistic experimental configurations where the effects of plasma non-uniformities and a range of x-ray scattering angles are included. We will discuss the implementation details and show results relevant to previous and ongoing experimental investigations.
Keywords:X-ray scattering  Dense plasma diagnostics  Spectroscopy
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