Lines of data pits on a CD give the same effect. See diffraction. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.

Definition: X-Ray Diffraction (XRD) is a powerful analytical technique used to characterize the atomic and molecular structure of a crystal. By measuring the angles and intensities of diffracted beams ...

The waves always 'spread' to some extent into the area beyond the gap. This is diffraction - the spreading out of waves when they go through a gap, or past the edge of a barrier. The extent of the ...