Submicrometre beams from a hard X-ray waveguide at a third-generation synchrotron radiation source

Area of Science:

• Physics
• Materials Science
• Synchrotron Radiation

Background:

• Third-generation synchrotron radiation sources enable advanced scattering experiments.
• X-ray waveguides are crucial for focusing and manipulating X-ray beams.
• Optimizing X-ray beam characteristics is vital for experimental sensitivity.

Purpose of the Study:

• To evaluate the performance of an X-ray waveguide for synchrotron radiation scattering experiments.
• To compare different optical configurations for X-ray beam manipulation.
• To assess the suitability of X-ray waveguides for diffraction studies.

Main Methods:

• Utilized an X-ray waveguide at a third-generation synchrotron undulator.
• Tested configurations including perfect crystal monochromator, multilayer monochromator, and focusing mirror.
• Measured X-ray flux and beam dimensions at the waveguide exit.

Main Results:

• Achieved a maximum flux of 8 x 10^9 photons/s at 0.083 nm using a multilayer monochromator with a 0.15 (V) x 600 (H) micron beam.
• A silicon (111) monochromator and ellipsoidal mirror yielded approximately 10^9 photons/s with horizontal beam compression to ~30 micron.
• Demonstrated the potential for X-ray waveguides in diffraction experiments.

Conclusions:

• X-ray waveguides can effectively enhance flux and control beam properties for synchrotron experiments.
• Multilayer monochromators offer high flux capabilities with waveguides.
• The integration of X-ray waveguides shows promise for advancing diffraction studies.