Marc SCHILTZ wrote:
I agree with everything but would like to add the following: if we assume an overall atomic displacement parameter, the drop-off in both the anomalous and non-anomalous scattering is the same. Therefore, the ratio of anomalous differences over mean intensity (which is what comes closest to R_{ano} - in whichever way this is defined) is essentially unaffected by atomic displacements and should still go up at high resolution, irrespective of the values of the atomic displacement parameter !
OK, that's new to me. My understanding was that f" does not drop off with resolution in the stationary atom case, since the anomalous scattering arises from the core atoms. Can you elaborate?
