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Related Concept Videos

X-ray Imaging01:24

X-ray Imaging

German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with X-rays, and by 1900, X-ray was widely...

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Related Experiment Video

Updated: Jun 19, 2026

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation
06:49

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

Published on: March 2, 2021

Chirped multilayer coatings for increased x-ray throughput.

S P Vernon, D G Stearns, R S Rosen

    Optics Letters
    |October 6, 2009
    PubMed
    Summary
    This summary is machine-generated.

    Chirped molybdenum-silicon (Mo-Si) multilayer coatings enhance x-ray bandwidth and integrated reflectance at normal incidence. This optimization is crucial for improving the throughput of advanced x-ray optical systems.

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    Last Updated: Jun 19, 2026

    In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation
    06:49

    In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

    Published on: March 2, 2021

    Multi-step Variable Height Photolithography for Valved Multilayer Microfluidic Devices
    10:18

    Multi-step Variable Height Photolithography for Valved Multilayer Microfluidic Devices

    Published on: January 27, 2017

    Area of Science:

    • Materials Science
    • Optics
    • X-ray Physics

    Background:

    • Multilayer coatings are essential for X-ray optics.
    • Achieving high throughput requires optimizing reflectance and bandwidth.

    Purpose of the Study:

    • To investigate the effect of chirped Mo-Si multilayer coatings on X-ray reflectance and bandwidth.
    • To determine chirp parameters for optimizing X-ray optical system throughput.

    Main Methods:

    • Fabrication of Mo-Si multilayer coatings with systematically varied periods (chirping).
    • Normal incidence X-ray reflectance measurements at approximately 13 nm wavelength.
    • Analysis of the relationship between integrated and peak reflectance.

    Main Results:

    • Chirped Mo-Si coatings increased X-ray bandwidth at normal incidence.
    • Integrated reflectance increased by up to 20% at lambda ~ 13 nm.
    • A slight reduction in peak reflectance was observed with increased bandwidth.

    Conclusions:

    • Chirped multilayer structures offer a method to enhance X-ray throughput.
    • The relationship between reflectance metrics guides the optimization of chirped coatings for specific optical systems.