Details

Autor(en) / Beteiligte

• Zastrau, U
• Sperling, P
• Harmand, M
• Becker, A
• Bornath, T
• Bredow, R
• Dziarzhytski, S
• Fennel, T
• Fletcher, L B
• Förster, E
• Göde, S
• Gregori, G
• Hilbert, V
• Hochhaus, D
• Holst, B
• Laarmann, T
• Lee, H J
• Ma, T
• Mithen, J P
• Mitzner, R
• Murphy, C D
• Nakatsutsumi, M
• Neumayer, P
• Przystawik, A
• Roling, S
• Schulz, M
• Siemer, B
• Skruszewicz, S
• Tiggesbäumker, J
• Toleikis, S
• Tschentscher, T
• White, T
• Wöstmann, M
• Zacharias, H
• Döppner, T
• Glenzer, S H
• Redmer, R

Titel

Resolving ultrafast heating of dense cryogenic hydrogen

Ist Teil von

• Physical review letters, 2014-03, Vol.112 (10), p.105002-105002

Ort / Verlag

United States

Erscheinungsjahr

2014

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• We report on the dynamics of ultrafast heating in cryogenic hydrogen initiated by a ≲300  fs, 92 eV free electron laser x-ray burst. The rise of the x-ray scattering amplitude from a second x-ray pulse probes the transition from dense cryogenic molecular hydrogen to a nearly uncorrelated plasmalike structure, indicating an electron-ion equilibration time of ∼0.9  ps. The rise time agrees with radiation hydrodynamics simulations based on a conductivity model for partially ionized plasma that is validated by two-temperature density-functional theory.