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Uniform and graded multilayers as x-ray optical elements.

P Lee1

  • 1Ball Aerospace Systems Division, P.O. Box 1062, Boulder, Colorado 80306, USA.

Applied Optics
|April 15, 1983
PubMed
Summary
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Graded multilayers show improved performance over uniform multilayers for soft x-ray monochromators and collectors. This study compares their efficiencies for specific x-ray applications, highlighting potential for spectroheliograph instruments.

Area of Science:

  • Materials Science
  • Optics
  • X-ray Physics

Background:

  • Multilayers are crucial for x-ray optics, acting as monochromators and collectors.
  • Uniform multilayers have limitations in performance and spectral resolution.
  • Graded multilayers offer potential for enhanced optical properties.

Purpose of the Study:

  • To compare the performance of uniform and graded multilayers.
  • To evaluate their efficiency as soft x-ray monochromators and normal incidence collectors.
  • To assess their suitability for spectroheliograph applications.

Main Methods:

  • Computational analysis of multilayer responses to Al K(alpha) radiation.
  • Calculation of effective areas for parabolic reflectors tuned to O K(alpha) line.

Related Experiment Videos

  • Evaluation of multilayer performance for solar emission lines in the 30-60 A range.

    • Main Results:

    • Graded multilayers demonstrate superior performance compared to uniform multilayers.
    • Effective areas were computed for various x-ray wavelengths and applications.
    • Normal incidence multilayer mirrors are effective for spectroheliograph applications.

    Conclusions:

    • Graded multilayers offer significant advantages over uniform designs for x-ray optics.
    • The findings support the use of normal incidence multilayer mirrors in spectroheliographs.
    • Further research can optimize graded multilayer designs for specific x-ray applications.