File:Double slit x-ray simulation polychromatic false-color.jpg

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Calculated intensity distribution behind a double slit illuminated by a superposition of plane waves of 5 different photon energies: 5, 7.5, 10, 12.5 and 15 keV (corresponds to X-ray wavelengths of 0.25, 0.17, 0.12, 0.10 and 0.08 nm). Each wavelength is represented by one of the following colors:

5.0 keVred
7.5 keVyellow
10.0 keVgreen
12.5 keVblue
15.0 keVpurple

The opening of each slit is 2.5 µm. The spacing between the two slits is 10 µm. (center-to-center).

The horizontal image coordinate corresponds to the distance behind the slit (along the optical axis). The propagation distances shown range from 1 to 500 mm. The width of a single pixel (in the full-resolution 2000-pixel-wide image) corresponds to a propagation distance of 0.25 mm.

The vertical image coordinate corresponds to the transverse position. The vertical field of view of the image is 60 µm. The height of each pixel (in the full-resolution 1500-pixel-high image) is 40 nm.

The simulation of the wavefront propagation was performed with the XWFP propagation code (T. Weitkamp, Proceedings SPIE 5536 (2004) 181-189), using a Fresnel propagation kernel in paraxial approximation.
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Author Timm Weitkamp (talk)
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Other versions
  • Monochromatic case for E=5.0 keV, 2000×1500 pixels, in grayscale.
    Monochromatic case for E=5.0 keV, 2000×1500 pixels, in grayscale.
  • Monochromatic case for E=5.0 keV, 2000×1500 pixels, using a blue-white color map.
    Monochromatic case for E=5.0 keV, 2000×1500 pixels, using a blue-white color map.
  • Monochromatic case for E=5.0 keV, 1000×1000 pixels, in grayscale.
    Monochromatic case for E=5.0 keV, 1000×1000 pixels, in grayscale.
  • Monochromatic case for E=7.5 keV, 1000×1000 pixels, in grayscale.
    Monochromatic case for E=7.5 keV, 1000×1000 pixels, in grayscale.
  • Monochromatic case for E=10 keV, 1000×1000 pixels, in grayscale.
    Monochromatic case for E=10 keV, 1000×1000 pixels, in grayscale.
  • Monochromatic case for E=12.5 keV, 1000×1000 pixels, in grayscale.
    Monochromatic case for E=12.5 keV, 1000×1000 pixels, in grayscale.
  • Monochromatic case for E=15 keV, 1000×1000 pixels, in grayscale.
    Monochromatic case for E=15 keV, 1000×1000 pixels, in grayscale.
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current10:05, 15 April 2011Thumbnail for version as of 10:05, 15 April 20112,000 × 1,500 (129 KB)Timm Weitkamp (talk | contribs){{Information |Description=Calculated intensity distribution behind a double slit illuminated by a superposition of plane waves of 5 different photon energies: 5, 7.5, 10, 12.5 and 15 keV (corresponds to X-ray wavelengths of 0.25, 0.17, 0.12, 0.10 and 0.0

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