Novel experimental setup for megahertz X-ray diffraction in a diamond anvil cell at the High Energy Density (HED) instrument of the European X-ray Free-Electron Laser (EuXFEL)
The high-precision X-ray diffraction setup for work with diamond anvil cells (DACs) in interaction chamber 2 (IC2) of the High Energy Density instrument of the European X-ray Free-Electron Laser is described. This includes beamline optics, sample positioning and detector systems located in the multipurpose vacuum chamber. Concepts for pump–probe X-ray diffraction experiments in the DAC are described and their implementation demonstrated during the First User Community Assisted Commissioning experiment. X-ray heating and diffraction of Bi under pressure, obtained using 20 fs X-ray pulses at 17.8 keV and 2.2 MHz repetition, is illustrated through splitting of diffraction peaks, and interpreted employing finite element modeling of the sample chamber in the DAC.
- Research Organization:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC52-07 N A27344; 89233218CNA000001; 20190643DR; AC02-76SF00515; FWP100182; 864877; 670787; 730872; FOR 2440; NRF-2018R1A3B1052042; EP/P024513/1; EP/R02927X/1; NA0003342; DMR-1701360; W911NF-19–2-0172; W911NF-17–1-0468; EAR-1634415; AC52-07NA27344
- OSTI ID:
- 1777508
- Alternate ID(s):
- OSTI ID: 1788031; OSTI ID: 1867533
- Report Number(s):
- LLNL-JRNL-834744; JSYRES; PII: S1600577521002551
- Journal Information:
- Journal of Synchrotron Radiation (Online), Journal Name: Journal of Synchrotron Radiation (Online) Vol. 28 Journal Issue: 3; ISSN 1600-5775
- Publisher:
- International Union of Crystallography (IUCr)Copyright Statement
- Country of Publication:
- Denmark
- Language:
- English
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