Compton scatter profiles for warm dense matter.
In this paper, we discuss the possibility of using x-ray Compton scattering as a probe of the outer electronic structure of ions immersed in warm dense matter. It is proposed that the x-ray free-electron lasers currently under construction will provide an ideal tool for this, with the main pulse being used to create a uniform well-defined sample and the third harmonic providing a clean monochromatic probe. We model the plasma photon scatter spectrum by combining self-consistent finite-temperature electronic structure calculations with molecular dynamics simulations of the ion-ion structure factor. In particular, we present bound-free Compton profiles that are more accurate that those obtained using form factor or impulse approximations.
School of Mathematics and Physics, The Queen's University of Belfast, Belfast BT7 1NN, United Kingdom.
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S
Sahoo
G F
GF
Gribakin
G
G
Shabbir Naz
J
J
Kohanoff
D
D
Riley