Reports until 18:37, Thursday 18 June 2015
LHO VE
kyle.ryan@LIGO.ORG - posted 18:37, Thursday 18 June 2015 (19235)
Vacuum activities and END station status'
Kyle, Gerardo

Finished replacing vibration cushions on Y-end and X-end Turbos -> Removed iLIGO RGA from BSC9 and replaced with 10" blank -> Finished torqueing flanges added yesterday -> Installed zero-length reducer and valve for aLIGO RGA -> Began pumping BSC10 and BSC9 annulus volumes 


Bubba 

Nearly completed 1" TMDS run at Y-end (still need one support) 


Danny S., Gary T. 

Hung door on BSC9 


END STATION STATUS -> Friday we will remove the 1st generation ESD pressure gauges from BSC9 and 10 and install 4.5" blanks in their place.  Next, we will install isolation valves and new style wide-range Inficon gauges on the domes of BSC 5 and 6 while leaving iLIGO gauges pairs as they are.  Then we will begin pumping the Y-end and X-end.  We will capture the pump down data using the existing gauge pairs while Richard M. arranges for the cabling of the new gauges into CDS.