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Reports until 03:49, Thursday 30 June 2016
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sheila.dwyer@LIGO.ORG - posted 03:49, Thursday 30 June 2016 (28081)
looking for clipping

After we gave up on locking tonight, I spent some time using Keita's method to search for clipping. 

The red cirles on the attached plots show the AS_C sum, normalized to the maximum found durring the scan, as different alingments changed in single bounce.  For the IM4 and PR2 scans, I used DC7 to make a servo from AS_C to ITMX (settings in screenshot), for the SR3 and ITMX scans I used out normal AS_C to SR2 loop, with the output matrix for SRM set to 0.   Blue x's show the slider values we have been using, you can see they are pretty much in the clear apperature and there is no smoking gun here for our recycling gain/ noise problems. 

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