Sheila, Camilla
In 81760 we saw that SQZ was adding noise 20-40Hz. I repeated today FDS and no sqz and don't see the same added noise, only a very small amount around 20Hz. See attached (4 minute 0.1Hz average). We're not sure what would be changing. It's possible that the range correlates with FC beamspot, see attached plot. This morning Sheila showed that the ~5MPc drift in the range during the last locks is mainly around 20-40Hz dtt.
I re-enabled FC beamspot control plot as in 80970, edited sqzparams, reloaded SQZ_FC and accepting sdfs. We have not checked the offsets.
While other work was going on, I tried the sqz/h1/scripts/SCAN_PSAMS.py script from 81516, this time with the SQZ ASC turned back on each time. I turned up the ASC gain to 1.5 and shuffled the wait times so that the ASC converges before the data is taken. We should test it again on a subset of PSAMS settings before starting a long scan. Each setting takes 4-5 minutes. Eg. 3 ZM4 settings and 3 ZM5 settings in 'PSAMS_ZM4/5_LIST' would take ~ 9 total settings x 5 minutes each = around 45 minutes. Each setting still scans the sqz angle, but the best angle didn't change much ~187 to 192deg with ZM4/5 changing 0.4V so we could try to leave SQZ_ANG_ADJUST running and remove the scan sqz ang step.