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Solid State Physics: X-Ray scattering
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[QUOTE="Nikitin, post: 5005007, member: 298426"] Thank you for those questions. I get now! (a) Smallest G_hkl gives biggest d_hkl => smallest theta. (b) The bragg law demands that the incoming and outgoing rays have equal angles. What I used in (a) was not bragg's law, but rather a condition for constructive interference (which reduces to bragg's law when incoming and outgoing rays have equal angles). I assume my condition for constructive interference is not good enough, because of the extinguishing behaviour of the structure factor? (c) In a powder, there are so many microcrystals that laue's equations will be fulfilled everywhere, hence the incoming x-ray will be scattered everywhere. [/QUOTE]
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Solid State Physics: X-Ray scattering
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