57. There are two unknowns, the x-ray wavelength λ and the plane separation d , so data for scattering at two angles from the same planes should suﬃce. The observations obey Bragg’s law, so 2 d sin θ 1 = m 1 λ and 2 d sin θ 2 = m 2 λ. However, these cannot be solved for the unknowns. For example, we can use the ±rst equation to
This is the end of the preview. Sign up
access the rest of the document.
This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.