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User name Nilanga
Log entry time 20:28:05 on February 21,1999
Entry number 15131
keyword=Half wave plate change
The halp wave plate at the source was taken out at 17.40 h. The HAPPEX run (and pscaler check) taken after this change indicated a charge asymmetry of -2900 ppm. MCC was notified about this. Since the reqiured voltage change was large the corrective process took some time. Finally by 20.05 the asymmetry was down to -100 ppm (with help from Brian Humensky from the HAPPEX group)