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Tracking the density evolution in counter-propagating shock waves using imaging X-ray scattering

  • Author(s): Zastrau, U
  • Gamboa, EJ
  • Kraus, D
  • Benage, JF
  • Drake, RP
  • Efthimion, P
  • Falk, K
  • Falcone, RW
  • Fletcher, LB
  • Galtier, E
  • Gauthier, M
  • Granados, E
  • Hastings, JB
  • Heimann, P
  • Hill, K
  • Keiter, PA
  • Lu, J
  • Macdonald, MJ
  • Montgomery, DS
  • Nagler, B
  • Pablant, N
  • Schropp, A
  • Tobias, B
  • Gericke, DO
  • Glenzer, SH
  • Lee, HJ
  • et al.

Published Web Location

https://doi.org/10.1063/1.4959256
Abstract

© 2016 Author(s). We present results from time-resolved X-ray imaging and inelastic scattering on collective excitations. These data are then employed to infer the mass density evolution within laser-driven shock waves. In our experiments, thin carbon foils are first strongly compressed and then driven into a dense state by counter-propagating shock waves. The different measurements agree that the graphite sample is about twofold compressed when the shock waves collide, and a sharp increase in forward scattering indicates disassembly of the sample 1 ns thereafter. We can benchmark hydrodynamics simulations of colliding shock waves by the X-ray scattering methods employed.

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