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Reports until 09:55, Tuesday 07 October 2014
H1 SEI
fabrice.matichard@LIGO.ORG - posted 09:55, Tuesday 07 October 2014 (14332)
Optical Lever Calibration

Last week we were wondering about possible ITMX excess motions. I reploted the optical lever motion from last friday including the calibration correction factors that Jeff posted yesterday. The first figure is the initial plot. The second one includes the correction.

While ITMX still show a large half-hour notion, the RMS values of  the ITMs tends to be very similar dowm to 10 mHZ.  In this measurement, the RMS values were around 20 nRad rms, both for pitch and yaw.

 

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