Tutorial(First Steps): Difference between revisions

Tutorial(First Steps) (view source)

247 bytes removed , 15 March 2011

2,652

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 # '''ORGX and ORGY''' Unless you can guess the direct beam position on the images, ''e.g.'' from ice rings, set both these values to half the detector size. In the case of this example, where the MAR-CCD is 3072x3072 pixels, this means
    ORGX=1536.00 ORGY=1536.00  !Detector origin (pixels).
-#'''Experiment specific settings''' The following numbers are also usually found in the image header:
+# '''Experiment specific settings''' The following numbers are also usually found in the image header (or in your lab notebook, or in logs written by the beamline software):
   DETECTOR_DISTANCE= 150.0   !(mm)
   OSCILLATION_RANGE=1.0            !degrees (>0)
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   NAME_TEMPLATE_OF_DATA_FRAMES=./images/tutorial_????.img  ! TIFF
   DATA_RANGE=1  180    !Numbers of first and last data image collected
-#'''Background range''' The default template suggests to use the first 5 images for detecting the average background per image. It does not harm to increase this number to 20 images. Especially with frame width of less than 1 degree you should do this.
- BACKGROUND_RANGE=1 20  !Numbers of first and last data image for background
-This is it to start. type <pre>#> xds_par </pre> to run xds and wait until it's finished.
+Then data processing can start. type <pre>#> xds_par </pre> to run xds and wait until it's finished.
 == Indexing Fails ==