Reports until 11:09, Friday 13 October 2017
H1 AOS (AOS)
greg.grabeel@LIGO.ORG - posted 11:09, Friday 13 October 2017 - last comment - 13:31, Friday 13 October 2017(39025)
cryopump baffle ring check

Travis, Ed, Greg

 

We went down the x-arm to check if the cryopump baffle ring was grounded like the issue that Livingston had, alog 33667, where the ring was touching the copper pieces. One side was not centered very well, but was still clear of the copper block, the other side was pretty well centered. A quick bump test showed the baffle ring floating freely. 

Comments related to this report
edmond.merilh@LIGO.ORG - 13:31, Friday 13 October 2017 (39029)

Images 667 & 669 (W side) show that there is no coupling between the copper of the baffle and the steel of the beam tube. It's pretty tight, but there is a gap. Images 670 & 671 are of the E side and there is a significant gap there. Your welcome for the "bump test". :P

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