aLIGO LHO Logbook

H2 SEI

hugh.radkins@LIGO.ORG - posted 14:16, Friday 23 December 2011 - last comment - 09:09, Tuesday 03 January 2012(1955)

BSC8 HEPI on stops

In anticipation of putting the Arm Cavity Baffle on to the ISI Stage0, we've put the HEPI (and entire Cartridge) on stops at the HEPI Crossbeam Foot.  This lifted the assembly 1 to 2 mils (.001-.002") monitoring the dial indicators.  We also brought in the out board stops (facing inward) on each Foot just to further constrain the position.
In case I don't make it back after the new year please don't forget.  GregG knows the story and where the numbers are recorded.

*** Please don't disturb the dial indicators at the Support Tube ends ***

Once the ACB is mounted up, we'll lift the load off the set screws, back them out of the way and set the payload back where it started.

Comments related to this report

betsy.weaver@LIGO.ORG - 15:17, Monday 02 January 2012 (1960)

Link

For the record, we left the ITMy fully suspended and un-clothed for the break, in the event some testing took place.  The FMy is still stopped with it's EQ stops.

Also for the record - just before the break, Travis finished attaching the FMy baffle to the FMy (Thomas and I started this but didn't finish).

travis.sadecki@LIGO.ORG - 09:09, Tuesday 03 January 2012 (1961)

Link

Correction: FMy was left off it's stops over the break as well. All suspensions in BSC8 are currently hanging and awaiting TFs in preparation for the handoff to SEI for their portion of testing.