Spectroscopic and x-ray scattering models in SPECT3D

Abstract

Summary form only given. Spectrally resolved x-ray scattering has become a very effective method for diagnosing electron temperatures, densities, and average ionization in warm dense matter. We present a newly implemented capability to simulate scattering signatures from realistic experimental configurations, which include the influence of plasma non-uniformities and collecting scattered x-rays from a range of angles. The method is based on a formalism developed by G. Gregori1. The x-ray scattering modeling has been added to the multidimensional collisional-radiative spectral and imaging package SPECT3D2. The ability to simulate the emissivity and attenuation of scattered photons within a multidimensional multi-volume-element plasma with non-uniform temperature and density distributions adds a major new capability to existing model. We will discuss details of the modeling and show results relevant to ongoing experimental investigations at Sandia National Laboratories.