Jennie W, Ryan S

Ryan and I went to the JAC table to align the beam to the wavefront sensors after Daniel corrected (#alog 89413) the ADC channel assignment(#alog 89397) for the WFS DC readouts in the h1ascimc model last Friday.

After some alignment with the WFS A picomotor mirror we realised that the X and Y channels were swapped with pitch corresponding to channel X and yaw corresponding to channel Y.

This happens upstream of the table as the cabling seems correct from the table hookup to the pico.

WFS B is the correct way round.

Both WFS have cross-coupling between pitch and yaw but we were eventually albe to get them aligned just by moving the WFS.

This means the WFS DC channels are hooked to the correct ADC channels in the ascimc model now.

We still need to profile the beam on the table to check the placement of the WFS relative to the beam waist.

We will come back to this tomorrow.

After this we did some lateral movements of the trigger PD to centre it in the beam horizontally but had to stand down because of locking efforts.

The signal cable is not hookled up yet so we can start commissioning this and the shutter once we ge the go ahead from the IFO locking team.