Jennie W
Summary: JAC WFS A and B readout has been phased.
I used Sheila's tremplate for the IMC WFS phasing (see Daniel's alog #89457 here when the IMC WFS was rephased in March) to make one for JAC WFS phasing. Since the length control is all done through CDS and does not use a common mode board the actuation channel to use is H1:JAC-L_SERVO_EXC.
The template is saved in userapps/h1/ioo/templates/dtt/JAC_wfs_phase.xml
New values were saved in the h1ascimc safe.snap.
Here is a photo of the WFS 'Settings' screens with the value to change highlighted in red and the Q and I error points highlighted in green. When running the template a line is injected into the JAC lenght control loop at 8 Hz. To phase the readout of the WFS segments, change the red-highlighted phases to minimise the line you inject in the Q error point channels, H1:JAC-WFS_{A,B}_{Q1,Q2,Q3,Q4)_ERR_DQ
Just realised WFS B wasn't very well aligned today. It's probably because the alignment has been changed into the JAC since the last time I aligned the JAC WFS on the IOT1 table (early May). Will redo the WFS B phasing Thursday with good alignment.
