<p>Calculated intensity distribution behind a double pinhole illuminated by a plane monochromatic, fully coherent X-ray wave with a wavelength of 0.1 nm (photon energy 12.389 keV).
</p><p>The diameter of each pinhole is 2.5 µm. The spacing between the two pinholes is 10 µm. (center-to-center).
</p><p>The image shows the intensity distribution at a distance z=20 mm from the double pinhole, using a logarithmic scale of gray values. The pixel size is 10 µm, the field of view thus 50 µm ×50 µm .
</p>
The image was calculated with the XWFP computer code (T. Weitkamp, Proceedings SPIE <b>5536</b> (2004) 181-189), using a Fresnel propagation kernel in paraxial approximation.
<a href="//commons.wikimedia.org/wiki/User:Timm_Weitkamp" title="User:Timm Weitkamp">Timm Weitkamp</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Timm_Weitkamp" title="User talk:Timm Weitkamp"><span class="signature-talk">talk</span></a>)
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