Problems: Difference between revisions

Problems (view source)

Revision as of 12:52, 18 July 2013

538 bytes added , 18 July 2013

→‎Indexing failures

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 == Indexing failures ==
-In case of IDXREF problems, you should definitively inspect FRAME.cbf, using [[XDS-viewer]] or [[adxv]].
+In case of IDXREF problems, you should definitively inspect, using [[XDS-viewer]] or [[adxv]], the FRAME.cbf file which is written by COLSPOT. This file shows the first frame of the SPOT_RANGE, together with strong pixels that COLSPOT found on this frame, marked with white pixels. IDXREF will use those spot positions which have at least as many strong pixels as MINIMUM_NUMBER_OF_PIXELS_IN_A_SPOT specifies.
-FRAME.cbf is written by COLSPOT. It shows the last frame of the SPOT_RANGE, together with spot positions that COLSPOT found, marked with white pixels.
+You will only be able to look at this file if you prevent XDS from running INTEGRATE. This can be achieved e.g. by
-FRAME.cbf is also written by INTEGRATE (this overwrites the FRAME.cbf written by COLSPOT). It shows the last frame of the DATA_RANGE, and you should make sure that the predictions (circles) match the observed reflections.
+ JOB= XYCORR INIT COLSPOT IDXREF DEFPIX ! INTEGRATE CORRECT
+since FRAME.cbf is overwritten by INTEGRATE. When FRAME.cbf is written by INTEGRATE, it shows the ''last'' frame of the DATA_RANGE, and you should make sure that the predictions (circles) match the observed reflections.
+To look at '''all''' spot positions found by COLSPOT, you could try
+ echo "set yrange [] reverse ; plot 'SPOT.XDS' us 1:2 w dots" | gnuplot -persist
+This may also help to find shaded regions on the detector.
 === IDXREF ends with !!! ERROR !!! message ===