Some Kikuchi line micrographs for silicon are shown below. Click on the images
for a larger version.
Images courtesy of Jian-Guo Zheng, The University of Liverpool
The Kikuchi lines pass straight through the transmitted and diffracted
spots. The diffracting planes are therefore tilted at exactly
the Bragg angle to the optic axis
The crystal has now been titled slightly away from the
Bragg angle, so that the Kikuchi lines no longer pass through the transmitted and
diffracted spots.
Here the crystal is tilted so that more that one set of planes
are diffracting. Each set of diffracting planes has its own pair of Kikuchi lines.
