sheila.dwyer@LIGO.ORG - posted 20:21, Tuesday 05 June 2018 - last comment - 13:58, Wednesday 06 June 2018(42350)
IMC spot positions measurement
Gabriele, Georgia, Sheila, Craig
After the model changes yesterday, and after relocking the mode cleaner after today's work inside the PSL, we worked on a script to measure the spot positions in the IMC. Jenne had started a script for this, but since we needed to make the model changes we edited it today.
We are currently running the measurement, the script is at userapps/isc/common/scripts/decoup/a2l_min_IMC.py
It runs 6 dither lines on pit and yaw for MC1, MC2, and MC3.
The spot positions from this measurement are:
alpha =
0.0573 0.1809 0.0549 -0.0706 0.0200 0.1241
measurements =
'MC1 P' 'MC2 P' 'MC3 P' 'MC1 Y' 'MC2 Y' 'MC3 Y'
mis-centering (mm) =
2.4169 7.6333 2.3162 -2.9808 0.8459 5.2365
In this coordinate system positive distances are closer to the upper right osem than the center of the optic. Script is attached.