X-Ray Diffraction of Heterogeneous Solid Hydrogen - Oral Presentation

Technical Report · Mon Aug 24 00:00:00 EDT 2015

DOI:https://doi.org/10.2172/1213185· OSTI ID:1213185

Levitan, Abraham ^[1]

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1. SLAC National Accelerator Lab., Menlo Park, CA (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: 1213185
• Report Number(s): SLAC-WP-115
• Resource Relation: Conference: Boston, MA (United States), 19-23 Jul 2015
• Country of Publication: United States
• Language: English