Reports until 10:33, Friday 31 October 2014
H1 SEI
jim.warner@LIGO.ORG - posted 10:33, Friday 31 October 2014 (14771)
Tilt Decoupling revisited at ETMX

Earlier this week I revisited tilt decoupling at ETMX. I thought that maybe since the local to cart matrices had been modified since the tilt decoupling was done, maybe the align elements would need tweaking. Happily (or not as I had hoped this would explain why Krishna's tilt subtraction wasn't working as well as it could) everything stil looks pretty good. Attached plots are for X, first is the tilt measurement, red off, blue on. Second pic is the flex modes from the T240s for the tilt off measurement, they didn't appear to change for on or off. I did Y as well. Everything is in the ETMX/Misc/TIlt_Decoupling folder of the SVN.

Images attached to this report