General

1. Sign into logbook with each use

2. After mounting every crystal, check that the beamstop is in place by issuing from the command line:

            sm i 1.5

    This stands for "single measurement intensity 1.5 (sec.)"

    *For some odd reason, 1.0 second exposures don't work. Use a time other than 1.0 second.

    Make sure there is a beam stop shadow, and no image of the direct beam.

3. Keep cabinet empty - to ensure that the goniometer platform has no obstruction.

4. For more specific guidelines for different sample types, see Data Collection