Six-reflection meV-monochromator for synchrotron radiation
2011

High-Resolution Monochromator for Synchrotron Radiation

publication Evidence: high

Author Information

Author(s): T. S. Toellner, A. Alatas, A. H. Said

Primary Institution: Advanced Photon Source, Argonne National Laboratory

Hypothesis

Can a six-reflection monochromator achieve high efficiency for synchrotron radiation in the 10–40 keV range?

Conclusion

The six-reflection monochromator design achieves high efficiency and a meV-bandwidth for synchrotron radiation.

Supporting Evidence

  • The monochromator design uses six crystal reflections to achieve a meV-bandwidth.
  • The theoretical efficiency surpasses previous multicrystal designs.
  • Two monochromators were constructed and tested at different beamlines.

Takeaway

This study shows how a special device can make X-ray beams very precise and efficient, which helps scientists see tiny details in materials.

Methodology

The study involved designing and testing two cryogenically stabilized six-reflection monochromators for high-resolution X-ray spectroscopy.

Limitations

The design may suffer from energy-alignment instability due to gas-flow-induced vibrations.

Digital Object Identifier (DOI)

10.1107/S0909049511017535

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