Reports until 08:56, Thursday 29 August 2013
H1 SUS
betsy.weaver@LIGO.ORG - posted 08:56, Thursday 29 August 2013 (7576)
ITMx SUS - pilot optic wire hang progress

Last Friday Travis and I finished hanging the metal ITMx QUAD and adjusting out coarse alignment errors.

On Monday, I disassembled the lower metal masses and dummy wire segments from the ITMx QUAD.  The RH guys attached the RH (see their alog below).

On Tuesday, Gerardo, Travis and I moved the ITMx and CP optics from the LSB bonding lab to the LVEA.  The ergo arm was transported from Ex to the LVEA and recleaned.  Using the arm, we stuffed both optics into the ITMx QUAD currently hanging from the ISI on the LVEA test stand after first peeling the CP-HR and the ITMx-AR First Contact sheets (using N2).  Note, I had to fold the FC sheet on the CP-AR in all the way around it's edge since it's diameter was too large and the ergo arm could not get good suction on it to pick it up.  The suspension also had a coarse cleaning to blow off particulate prior to installing the optics - cleaning these suspensions is very difficult however since the equipment cannot reach the trapped areas and working real estate is so limited.

Yesterday, Travis and I attached the new loop wire segments to the main and reaction chains and fully suspended them.  No gross alignment errors observed, so prism placements and loop lengths are good!  We then proceded to lace the reaction chain cables.  We need to make some height adjustments and also plumb in the 12 top BOSEMs to get damping control before we can start taking IAS measurements, but we hope that will come together today/tomorrow.