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Related Experiment Videos

Crystallographic data collection using a 0.22% bandwidth multilayer.

Ulrich Englich1, Alexander Kazimirov, Qun Shen

  • 1Cornell High Energy Synchrotron Source (CHESS), Cornell University, Ithaca, NY 14853-8001, USA.

Journal of Synchrotron Radiation
|April 21, 2005
PubMed
Summary
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A new multilayer monochromator offers enhanced X-ray flux for protein crystallography. This advancement enables faster data collection and the use of smaller samples, benefiting structural biology research.

Area of Science:

  • Optics and X-ray instrumentation
  • Structural biology
  • Materials science

Background:

  • Traditional optics face limitations in X-ray applications.
  • There is a need for improved X-ray sources in structural biology.

Purpose of the Study:

  • To design and implement a high-resolution multilayer monochromator.
  • To evaluate its performance for protein crystallography.

Main Methods:

  • A multilayer monochromator with 0.22% bandwidth was designed and installed at CHESS.
  • Crystallographic data were collected from Concanavalin A.
  • Data were processed and used for structure solution and refinement.

Main Results:

  • The multilayer monochromator provides a 5-fold flux enhancement over traditional Si(111) monochromators.

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  • High-quality crystallographic data were obtained.
  • Data collection was faster, allowing for smaller sample use.

    • Conclusions:

    • Multilayer optics can significantly enhance X-ray data collection speed and efficiency.
    • This technology is valuable for the structural biology community, especially at bending-magnet beamlines.