Record Details

Title:
Resolving Ultrafast Heating of Dense Cryogenic Hydrogen
Abstract:
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
Imprint:
College Park, Md., APS, 2014
Journal Information:
Phys. Rev. Lett., 112, 10, 105002 (2014)
ISSN:
0031-9007
1079-7114
External related publications:
10.1103/PhysRevLett.112.105002
WOS:000332690300012 (WOS)
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 Record created 2016-10-11, last modified 2017-09-14

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