I am learning about electron diffraction in a transmission electron microscope and was wondering about following topic:
A single crystalline material will exhibit a diffraction pattern with discrete spots or disks while an amorphous material will show speckle contained within rings. Both are the result of Bragg diffraction with coherent illumination.
But, how would these diffraction patterns look like if the illumination were fully incoherent? Surely they can't look the same but what exactly would change?
Thanks for ideas and answers!