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Wedged multilayer Laue lens.

Ray Conley1, Chian Liu, Jun Qian

  • 1X-ray Science Division, Argonne National Laboratory, Argonne, IL 60439, USA. rconley@aps.anl.gov

The Review of Scientific Instruments
|June 3, 2008
PubMed
Summary
This summary is machine-generated.

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Researchers developed a new deposition method for advanced multilayer Laue lenses (MLLs). This technique enables the creation of ideal wedged MLLs for superior hard x-ray focusing and subnanometer resolution.

Area of Science:

  • X-ray optics and instrumentation
  • Materials science and thin-film deposition

Background:

  • Multilayer Laue lenses (MLLs) are crucial x-ray focusing optics fabricated using thin-film deposition.
  • Current MLL designs face limitations in achieving ultimate hard x-ray focusing performance.
  • An improved geometry, the wedged MLL, promises subnanometer resolution and high efficiency.

Purpose of the Study:

  • To describe a novel method for depositing the multilayer structure required for ideal wedged MLLs.
  • To report initial results demonstrating the feasibility of producing these advanced structures.

Main Methods:

  • Development of a thin-film deposition technique to create layers with controlled in-plane thickness gradients (wedges).
  • Fabrication of multilayer structures designed for symmetric Bragg diffraction in wedged MLLs.

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  • Characterization of the initial deposition results for the multilayer structures.

    • Main Results:

    • Successful demonstration of a deposition method capable of producing the complex multilayer structure for wedged MLLs.
    • Initial deposition results confirm the feasibility of creating the necessary in-plane thickness gradients.
    • The developed method lays the groundwork for fabricating ideal wedged MLLs.

    Conclusions:

    • The described deposition method is a critical step towards realizing the predicted high performance of wedged MLLs.
    • This advancement in fabrication technique is expected to significantly improve hard x-ray focusing capabilities.
    • The ability to create ideal wedged MLLs opens new possibilities for nanoscale x-ray imaging and analysis.