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Short-period multilayer X-ray mirrors.

S S Andreev1, M S Bibishkin, N I Chkhalo

  • 1Institute for Physics of Microstructures RAS, 603600, GSP 105, Nizhny Novgorod, Russia.

Journal of Synchrotron Radiation
|August 29, 2003
PubMed
Summary

Researchers investigated multilayer X-ray mirrors with short periods, achieving high reflectivity and spectral resolution. These mirrors are suitable for X-ray diagnostics, astronomy, and microscopy applications.

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Area of Science:

  • Materials Science
  • Optics
  • Plasma Physics

Background:

  • Multilayer structures are crucial for manipulating X-ray beams.
  • Short-period multilayers offer enhanced performance for specific applications.

Purpose of the Study:

  • To systematically investigate multilayer structures with short periods.
  • To evaluate the performance of various material combinations for X-ray mirrors.
  • To assess the suitability of these mirrors for advanced applications.

Main Methods:

  • Utilized a tunable soft X-ray synchrotron (BESSY II) and X-ray tube radiation.
  • Fabricated and characterized multilayer X-ray mirrors with periods ranging from 0.8 nm to 3.5 nm.
  • Investigated various material pairs including W/B(4)C, W/Sc, Mo/B(4)C, Mo/C, La/B(4)C, Cr/C, and Cr/Sc.

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Main Results:

  • Achieved high reflectivity and spectral resolution in the fabricated multilayer mirrors.
  • Demonstrated the feasibility of constructing mirrors with up to 300-400 periods.
  • Identified optimal material combinations for specific X-ray mirror applications.

Conclusions:

  • Multilayer X-ray mirrors with short periods exhibit excellent performance characteristics.
  • These mirrors are well-suited for developing multimirror systems.
  • Potential applications include X-ray diagnostics of high-temperature plasma, X-ray astronomy, and microscopy.