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Reports until 07:36, Friday 27 April 2012
H2 SUS
betsy.weaver@LIGO.ORG - posted 07:36, Friday 27 April 2012 (2711)
H2 ITMy BSC8 work
Betsy, Calum, Thomas, then Kate and Margot

Yesterday, we went into BSC8 to inspect the ACB since we (SUS) noticed that the ACB copper blocks seemed to be spaced further than they were last time we closed the chamber.  History - the ACB was swung back in order to remove, repair, and reinstall the lower ITMy QUAD.  The ACB was swung back into position so that alignment of the ITMy could proceed.  With the ACB in nominal position many things had to take place around it causing it to swing around a bit, such as locking and unlocking of ISI lockers in Stage 0 above it, removing the flooring and adding the QUAD sleeve and vibration absorbers, alignment of the ITMy SUS, application of FirstContact to ITMy HR. - all of these activities require one to stand or sit right at the ACB to do the work.  Apparently AOS has decided to realign the ACB with the weights to center it better in the stop mounts and on the copper ECD block.  Rumor has it that Thomas is poised to do this early next week when Travis gets back (I'll be at LLO) and can help him when he's in there finishing our preps anyways.

While I was in there I decided to put the FirstContact on the ITMy-HR which had been naked for the last ~2 weeks.  This was a challenge as one could only use their left hand to reach in front of the ACB to do the painting.  We laid wipes across the front of the ACB and ITMy structure to catch drops.  Margot and I took turns painting as it required sitting/kneeling in an awkward position for stretches of time.  We added a peek tab so it's ready to pull next week.  I did get one small drop on the ACB which appeared to wire away clean with a few acetone swipes.
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