Synchrotron beamline permits much higher resolution

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Conventional XRD tubes generate X-rays with:
  • multiple wavelengths (alpha1, alpha2, beta)
  • complex diffraction peak profiles
Synchrotron XRD sources generate X-rays with:
  • narrow Gaussian line shapes
  • single wavelengths
  • high intensity

    Comparison of diffraction patterns for NIST SRM LaB6 powder obtained using synchrotron (above) and conventional (top) X-ray sources

Nanocrystalline PbTiO3 powder exhibits significant line broadening due to crystal size and microstrain.
(Safari and Akdogan, Rutgers University)

X14A synchrotron source eliminates much of the instrumental broadening and permits more reliable characterization of crystallite size and residual microstrain

High Temperature Synchrotron X-Ray Powder Diffractometer

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Acknowledgments

URL: http://www.html.ornl.gov/rsuc/lab6.html