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Title: Ultrafast X-Ray Diffraction of Heterogeneous Solid Hydrogen

Technical Report ·
DOI:https://doi.org/10.2172/1213144· OSTI ID:1213144
 [1]
  1. Olin College of Engineering, Needham, MA (United States)

Angularly resolved x-ray diffraction at 5.5 keV establishes the structure of a 5 µm diameter solid hydrogen jet, providing a foundation for analysis of hydrogen in a warm dense matter state. The jet was composed of approximately 65 % ± 5% HCP and 35 % ± 5% FCC by volume with an average crystallite size on the order of hundreds of nanometers. Broadening in the angularly resolved spectrum provided strong evidence for anisotropic strain up to approximately 3 % in the HCP lattice. Finally, we found no evidence for orientational ordering of the crystal domains.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
AC02-76SF00515
OSTI ID:
1213144
Report Number(s):
SLAC-TN-15-054; TRN: US1500417
Country of Publication:
United States
Language:
English