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User name Jin Huang
Log entry time 08:01:33 on November 01, 2008
Entry number 245870
This entry is a followup to: 245777
keyword=Transverse pumping laser pol. measurement
An circular polarization measurement is performed on transverse pumping
laser after optics checking during last access. Laser polarization is
as below:
Laser Component Desc. Angle Reading Polarization
P Preset 278.8 98.9%
P Adjuested 275.2 99.9%
S Preset 7.5 98.9%
S Adjuested 10.2 99.0%
"Preset" : the quarter wave plate angle calibrated in target lab:
https://hallaweb.jlab.org/wiki/index.php/Spin_flip/quarter_wave_plate_ca
libration
"Adjuested" : During measurement, I tried to rotate the plate to get
better pol. New angle are marked as "Adjuested"
A copy of this log entry has been emailed to: jpchen