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X-ray crystallography; intensity peaks vary with voltage
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[QUOTE="mfb, post: 5655829, member: 405866"] The angle discussed there is the x-rax emission relative to the incoming electron beam, it has nothing to do with the refraction angle you measured. I would expect some mechanical issue - the crystal tilted a bit, or some other parts of the setup moved a bit relative to each other. For an ideal setup the peak should be nearly* exactly at the same angle.There is no radioactivity involved. * a different background spectrum has a small influence on the precise peak position (unless you determine it with a fit to background and peak), but for narrow and large peaks this effect is negligible. [/QUOTE]
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X-ray crystallography; intensity peaks vary with voltage
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