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User name paschke
Log entry time 15:03:31 on January26,2008
Entry number 227271
keyword=PITA offset applied for IHWP IN
Quickly scanned PC HV to find new run point for IHWP=IN, which had an
unaccepable 1800ppm Aq. MCC and shift crews in Halls A, B and C were informed.
The scan was performed during parity run 10332.
I selected to run at a PITA offset of +120 V from the initial HV. See attached
Aq figure below.
OUT: Gun 2 HV POS=4.4, NEG=5.76
IN: Gun2 HV POS = 6.4, Neg=3.76
By the way, the position difference senstivity is shocking. The vertical scale
of attachment 2 (x and y position differences) are in microns(!), but the fit
results output in nanometers.
FIGURE 1
FIGURE 2