User name Antonin
Log entry time 19:27:01 on July13,2001
Entry number 66009
Followups:
keyword=Charge Asymmetry calibrationWith Joe Grames we made a charge asymmetry calibration (e.g. determine the slope for the two state of the halfwavplate (in - out )). The slope paameters will be modified in the feedback script so that means you can start using feedbacks after this calibration. Please checks fe\requently the value of asymmetry during long run.
The slopes are :
HWP............................slope
out.............................. -7.6 ppm/step
in................................ 4.2 ppm/step
On the picture I put the charge asym function to the run number (sorry).
FIGURE 1
FIGURE 2
