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Reports until 20:30, Tuesday 22 July 2014
H1 AOS (SUS)
daniel.hoak@LIGO.ORG - posted 20:30, Tuesday 22 July 2014 (12934)
Preliminary spectra and transfer functions for OM1-3

(Dan, with pointers from Jeff and Arnaud)

Yesterday and Friday I measured spectra and transfer functions for the tip-tilts in HAM6.   The transfer functions were taken with the tip-tilts in the undamped state, the spectra were taken with the damping both on and off.  The transfer functions all agree with the model.

These TTs are not in their final positions and they only have temporary dog clamps (two each, I think, instead of the nominal four, and they're not torqued to any precision), so these measurements will have to be repeated once the optics in HAM6 are aligned and clamped.

As for the OMC, Arnaud captured TFs a month ago; things looked good.

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