robert.schofield@LIGO.ORG - posted 20:38, Thursday 21 September 2017 - last comment - 11:02, Friday 22 September 2017(38744)
Center of Swiss Cheese baffle removed
Corey and I removed the center of the Swiss Cheese baffle today. We also got the corks in the eye baffle but we found a problem and did some extra damping that I will report on later.
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Just adding a few notes & some photos for Swiss Cheese Plates removal from the MCA1 Baffle Assembly.
- We wiped the floor of the MC Tube all the way down to the Swiss Cheese Baffle (wipes were dirtier closer to HAM2 & HAM3 and fairly clean in the tube).
- There was a witness plate/conatimation wafer in the tube between HAM2 & the Swiss Cheese. We picked it up & were not sure what to do with it. As of last night it was loosely left on the SW corner of the HAM3 table.
- For Swiss Cheese, we removed: Upper & Lower Aperature Plates (now stored in "Baffle Boneyard" in LVEA) and all hardware (10-32 hardware & (3) Aperture Clips).
- This work leaves the baffling MC Tube Baffle Ring Assy (assembly which is anchored to the Tube & provides foundation for baffling) & MC Tube Baffle Assy (basically a big donut with holes in it for the [12] vacuum ports on either side of the MC Tube---"Swiss Cheese" was the baffling inside the "donut" which was the two big parts removed).
Attaching a few photos (with names describing them). Unfortunately, ResourceSpace has not been working for me for last few months, so not able to upload all my photos. :(
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