betsy.weaver@LIGO.ORG - posted 16:21, Monday 01 October 2012 - last comment - 09:57, Tuesday 02 October 2012(4338)
PR2 AOSEM swapped
We finally swapped the M3 stage UL AOSEM which had a cracked filter (s/n 242). The new unit (s/n 212) has an OLV of 26640. Stuart reset the PR2 M3 UL OSEMINF offset to -13320 and the gain to 1.126.
I'll back log that we also straightened the side flag mount in an attempt to reduce cross-coupling noted in Phase 2a/b testing earlier. We released the masses into suspension and Stuart ran TFs last night.