1Y13: Difference between revisions

1Y13 (view source)

351 bytes added , 11 July 2011

2,684

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 == Solving the structure ==
-Although we could now think of using these two files ("firstparts" and "secondparts" merged) and assume that they are peak and inflection wavelengths, it appears more reasonable to try and solve the structure with SAD - which means using "firstparts" only.
+It appears reasonable to discard the "second parts" since they are strongly influenced by radiation damage. Then, we could
+# merge together (into one output file) the two first parts of E1 and E2, thus obtaining a single pseudo-SAD dataset. The reason for doing this is that the anomalous signal of both datasets is so strong, and their (isomorphous) difference is weak (after all, the correlation coefficient is 1.000 !)
+# keep the first parts of E1 (inflection, according to the documentation) and E2 (high-enery remote) separate, and treat them as MAD (or rather, DAD).
-=== First try ===
+=== First try at pseudo-SAD ===
-Let's look at the XSCALE statistics for "firstparts":
+Let's look at the XSCALE statistics for the merged-together "firstparts":
         NOTE:      Friedel pairs are treated as different reflections.