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    User name dhamilton

    Log entry time 06:11:48 on April 4,2008

    Entry number 229844

    keyword=Beam position problems - empty target for harp scan

    As we are having trouble with beam y position stability (drifted by 4mm twice in 20 minutes - see below) we are moving to the empty target and will ask for a harp scan. We will then check the spot position again on the BeO target.


    FIGURE 1