K-(alpha) X-ray Thomson Scattering From Dense Plasmas
Spectrally resolved Thomson scattering using ultra-fast K-{alpha} x-rays has measured the compression and heating of shocked compressed matter. The evolution and coalescence of two shock waves traveling through a solid density LiH target were characterized by the elastic scattering component. The density and temperature at shock coalescence, 2.2 eV and 1.7 x 10{sup 23}cm{sup -3}, were determined from the plasmon frequency shift and the relative intensity of the elastic and inelastic scattering features in the collective scattering regime. The observation of plasmon scattering at coalescence indicates a transition to the dense metallic state in LiH. The density and temperature regimes accessed in these experiments are relevant for inertial confinement fusion experiments and for the study of planetary formation.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 953314
- Report Number(s):
- LLNL-PROC-413087; TRN: US0902747
- Resource Relation:
- Conference: Presented at: 16th International Conference on Atomic Processes in Plasmas, Monterey, CA, United States, Mar 22 - Mar 26, 2009
- Country of Publication:
- United States
- Language:
- English
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Ultrafast K{alpha} x-ray Thomson scattering from shock compressed lithium hydride
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