Jeff K last night took TFs on the ETMX (QUAD) declaring it "Go for launch" (see LHO aLOG entry 13098), doors have subsequently been fitted on the BSC9 chamber this afternoon (see LHO aLOG entry 13117) and I've taken another set of TFs this afternoon as follows:-

- ETMX M0-M0 undamped (2014-07-31_1500_H1SUSETMX_M0_ALL_TFs.pdf)
- ETMX R0-R0 undamped (2014-07-31_1500_H1SUSETMX_R0_ALL_TFs.pdf)

BSC9 ISI Status: ISI damped.

ETMX alignment: No offset was applied during this measurement.

The above TFs have been compared with Jeff K's measurement from last night (allquads_2014-07-31_H1SUSETMX_Phase3a_Doff_ALL_ZOOMED_TFs.pdf), the plot key is:-

Blue Trace = Model Prediction
Orange Trace = H1 ETMX (erm 2014−07−30), Phase 3a (in-air).
Black Trace = H1 ETMX (erm 2014−07−31), Phase 3a (in-air).

Summary:

ETMX peaks appear consistent with the previous measurement, before putting the doors on, thus indicating that there is no rubbing present. However, some of the zeros still appear a little ratty, especially in L and T DOFs on both chains. This could be due to turbulence due to purge air. 

Therefore, I plan to repeat this measurement overnight, but this time using a Matlab TF and enabling ST1 isolation loops on the ISI.

All data, scripts and plots have been committed to the sus svn as of this entry.