Main INDEX
Monthly INDEX
PREV
NEXT
Make New Entry,
Make Followup Entry
User name Yi Qiang
Log entry time 14:08:06 on May 13, 2009
Entry number 273041
This entry is a followup to: 272660
Followups:
keyword=Late entry: current settings for rotatable Q-wave plates of longitudianl laser
After yesterday's EPR calibration, we found out the projected max
polarization is only about 45%. So the first thing I did was to tune the
Q-wave plates one more time at production condition to see whether this
helps. And the new settings are the following:
Motor 1426 = plate #5 on S wave upstream facing upstream -> 106 Degree
Motor 1423 = plate #6 on S wave downstream facing upstream -> 134 Degree
Figure 1

Figure 2
