期刊
PHYSICAL REVIEW B
卷 92, 期 8, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.92.085117
关键词
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资金
- French Agence Nationale de la Recherche, under Grant OEDYP [ANR-09-BLAN-0206-01]
- GENCI Program [GEN6046, GEN6454]
The use of the x-ray absorption K-edge slope is investigated as a model-free diagnostic of the electronic temperature in warm dense matter. Data are reported for aluminum in a wide domain of densities (approximately one to three times the solid density) and temperatures (similar to 0.1-10 eV). Measurements are obtained from laser-shock compression where both temperature and density are independently determined from optical diagnostics. They are compared with two different theoretical approaches, respectively, based on quantum molecular dynamics and multiple scattering. Extrapolation for other absorption edges and materials is discussed.
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