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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