"Edward A. Berry" <ber...@upstate.edu> writes: > The plane will scatter, and all atoms in the plane will scatter in phase > if angle of incidence equals angle of reflection. this is how a mirror > reflects. Furthermore all the parallel planes will also reflect at this angle. > Trouble is the beams scattered from the different parallel planes are > systematically out of phase with each other unless Bragg's law is met > for that set of planes, so interference is destructive and adds up to nothing. > At least that's how I understand it, > eab
Yes, the way I like to think of it as a double condition, the reflection‐in‐a‐mirror condition *plus* the special condition imposed by Bragg’s Law. This is why I often prefer the unfashionable spelling “reflexion”. -- Ian ◎
