cheryl.vorvick@LIGO.ORG - posted 11:56, Wednesday 12 December 2012 - last comment - 15:44, Friday 14 December 2012(4904)
H1 Input Beamtube Photos:
- Jodi, Cheryl Last Thursday (Dec 6) Jodi and I inspected the H1 input beamtube. Pictures attached show that we found white powdery stuff (HAM3 table, beam tube, MC2 cage), white fuzz (beamtube), part of a latex glove (baffle), fibers, and uniform particulate on the overhead nozzles (picture of gloved finger shows what came off with a swipe).
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Regarding the last picture in the above collection: I took a look at the MC2 suspension today and see that this pile of particulate is metallic and is from the install arm brackets which mount at this location. We have not vacuumed this suspension since in-chamber, if ever.