Reports until 18:01, Wednesday 05 March 2014
H1 SEI
sebastien.biscans@LIGO.ORG - posted 18:01, Wednesday 05 March 2014 (10569)
BSC-ISIs status

I've been updating the MEDM screens to be sure that all the BSC-ISIs currently used are consistent with eachothers.

Right now, BS, ITMX, ITMY & ETMX have:

- the Start, Tstart and Tcrappy blends installed respectively in blend banks 1, 2 and 3

- a working controller (lvl3 on ITMX & ITMY, lvl2 on BS & ETMX)

- tilt decoupling on ST1 for all them, except BS.

 

Putting on the controllers with Tcrappy blends on all DOFs for ST1 and ST2 provide a robust configuration with good performance on all these ISIs.

In other words, everything looks good into the seismic world!

 

There is of course some room for improvement. We're currently in an aggressive configuration, sensitive to varation of the input motion. Adding tilt decoupling on stage2 will help pushing the performance. I'll work on that as soon as I have access to a platform.

Images attached to this report