Log entry time 19:00:14 on June18,2004

Entry number 126231

Before beginning production running this evening, we needed to take PITA scans because of the cathode spot change.

Run 2253 - PITA scan, IHWP out, IA = 4.56, RHWP = 2250
Run 2254 - PITA scan, IHWP out, IA = 5.00, RHWP = 2250

The PITA slope = -3.94 ppm/V = -236.4 ppm/DAC V.  The offset (from run 2254) is -81.61 ppm.

The new PC voltages:

POS = 3.688
NEG = 8.105

Because the slope didn't change, I decided not to do a RHWP scan.  This may become necessary as we obtain data about position differences and/or lose our lever arm with PITA feedback.