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High Pressure Single Crystal Diffraction at PX^2
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Published on: January 16, 2017

Fast X-ray powder diffraction on I11 at Diamond.

Stephen P Thompson1, Julia E Parker, Julien Marchal

  • 1Diamond Light Source, Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire, UK.

Journal of Synchrotron Radiation
|June 21, 2011
PubMed
Summary

A new position-sensitive detector was commissioned for fast X-ray powder diffraction. This detector enables real-time studies of rapid structural changes in materials like hydrogen storage compounds and biomimetic vaterite.

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Area of Science:

  • Materials Science
  • Crystallography
  • Instrumentation

Background:

  • Fast X-ray powder diffraction requires advanced detectors capable of capturing rapid structural dynamics.
  • Beamline I11 at Diamond Light Source needed enhanced capabilities for time-resolved and high-throughput experiments.

Purpose of the Study:

  • To commission and characterize a new position-sensitive detector for fast X-ray powder diffraction.
  • To demonstrate the detector's suitability for studying dynamic processes and material quality.

Main Methods:

  • Utilized 18 MYTHEN-II silicon strip detector modules for 90° 2θ coverage.
  • Integrated the detector into the I11 beamline's data acquisition system.
  • Performed measurements using reference samples (Si, AgI) and dynamic/high-throughput experiments.

Main Results:

  • Achieved an intrinsic resolution of Δ2θ ≈ 0.004°.
  • Successfully captured the real-time dehydrogenation of MgH(2).
  • Enabled ultrafast, high-throughput analysis of vaterite crystallite quality.

Conclusions:

  • The new detector system is well-suited for time-resolved powder diffraction studies.
  • The facility can effectively investigate rapid structural changes and material properties.
  • This advancement opens new possibilities for materials science research at Diamond Light Source.