Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

High-pressure powder diffraction on synchrotron sources.

R J Nelmes, M I McMahon

    Journal of Synchrotron Radiation
    |October 1, 1994
    PubMed
    Summary
    This summary is machine-generated.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    Unified High-Pressure Phase-Transition Sequence in the f-Electron Metals: oF16→oF8 Transition in Terbium.

    Physical review letters·2025
    Same author

    The structure of liquid carbon elucidated by in situ X-ray diffraction.

    Nature·2025
    Same author

    Phase transition kinetics of superionic H<sub>2</sub>O ice phases revealed by Megahertz X-ray free-electron laser-heating experiments.

    Nature communications·2024
    Same author

    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).

    Journal of synchrotron radiation·2021
    Same author

    Probing extreme states of matter using ultra-intense x-ray radiation.

    Journal of physics. Condensed matter : an Institute of Physics journal·2021
    Same author

    The phase diagram of Ti-6Al-4V at high-pressures and high-temperatures.

    Journal of physics. Condensed matter : an Institute of Physics journal·2021

    New detectors significantly improve X-ray powder diffraction for tiny samples in diamond-anvil pressure cells. This advancement enhances signal quality and data reliability for high-pressure research.

    Area of Science:

    • Materials Science
    • Crystallography
    • High-Pressure Physics

    Background:

    • Diamond-anvil pressure cells (DACs) enable high-pressure research but have very small sample volumes (
    • Traditional X-ray powder diffraction (XRPD) methods in DACs suffer from low signal-to-noise ratios.
    • Monochromatic angle-dispersive techniques yield poor results, while white-beam energy-dispersive techniques have limited resolution and unreliable intensities.

    Purpose of the Study:

    • To review the recent advancements in X-ray powder diffraction techniques for small samples.
    • To highlight the impact of new detector technology on high-pressure research using DACs.
    • To present experimental techniques and advantages of the improved methods.

    Main Methods:

    • Utilizing image-plate two-dimensional detectors with angle-dispersive X-ray diffraction.

    Related Experiment Videos

  • Employing diamond-anvil pressure cells for sample containment under high pressure.
  • Conducting experiments at the Synchrotron Radiation Source (SRS) Daresbury.

    • Main Results:

    • The introduction of 2D detectors has dramatically improved signal-to-noise ratios in XRPD studies of DAC samples.
    • Angle-dispersive methods are now feasible and provide enhanced powder averaging.
    • Reliable peak intensities and improved resolution are now achievable, overcoming previous limitations.

    Conclusions:

    • Image-plate 2D detectors have revolutionized XRPD analysis for micro-samples in DACs.
    • The enhanced signal and data quality facilitate more robust high-pressure materials research.
    • These advancements offer significant advantages for studying materials under extreme conditions.