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Reports until 14:04, Tuesday 10 March 2020
LHO VE
chandra.romel@LIGO.ORG - posted 14:04, Tuesday 10 March 2020 (55538)
leak at EX RGA

{Kyle, Tyler, Chandra}

Found an air leak at EX RGA today at the tail end of maintenance. Ran out of time to pin point which joint. The RGA manifold is still covered in foil from last bakeout. We measured 2.8x10^-9 Torr-L/s at LD backing main turbo pump. Below are two aLOGs from 2016 referencing installation and commissioning.

Next opportunity we will isolate RGA from main volume and leak check manifold. Those mini conflats on cal gases may have started to leak after baking. I can't find a leak check record post-bake.

aLOG 31080

aLOG 29729

 

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