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User name jpchen
Log entry time 02:03:11 on January12,2001
Entry number 54387
keyword=target postion and lifter
The shift people found that the target might be out of position:
1) With EMPTY, there were large counts;
2) When it moved to the optics target, only two foils were seen (angle was at 56.6
degree).
After I came, we moved the target to BeO, the spot was as before (as yesterday when
they saw 9 foils). Then I checked the Vernier reading of the three lift positions. They
were: 42. 21 (the one with limit switch, master), then clockwise 42.27 and 42.225.
Since I do not have the offset, called Dave Meekins. He has the numbers in
his logbook in office. His recollection is that two are close, one is slightly off.
He will check his lokbook and do a more through check tomorrow when he comes
in to work. At the mean time, though it looks might not be a lifter problem, the shift
crew was advised to minimize the target movement.