Reports until 11:52, Thursday 29 March 2018
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sebastien.biscans@LIGO.ORG - posted 11:52, Thursday 29 March 2018 - last comment - 17:54, Thursday 29 March 2018(41209)
AMD installation on ETMY complete

Slawek, Betsy, Sebastien, Georgia

We finished installing the remaining AMDs (AMD 3 and 4) on ETMY this morning. Everything went smoothly, no issue to report. The required force was applied and we observe a nice ring of epoxy around the AMD bases, as expected. The epoxy has to cure 24h with the jig in place (we will remove it tomorrow).

We also inspected AMD1 and 2, installed two days ago. Bond looks uniform, as we observe few fringes between the base and the test mass (Betsy will put pictures later). Find attached a little sketch (not to scale) showing the rough locations of the AMDs on the flats. We will have more precise numbers by looking at the pictures.

 

 

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betsy.weaver@LIGO.ORG - 17:22, Thursday 29 March 2018 (41215)
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Following are pictures of AMD 1 and AMD 4 installed.

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betsy.weaver@LIGO.ORG - 17:29, Thursday 29 March 2018 (41217)
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And below are pictures of the AMD 2 and 3 installed this week.

Well done team!  Nice easy install.

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betsy.weaver@LIGO.ORG - 17:54, Thursday 29 March 2018 (41221)
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I have measured the dust counts just outside of the chamber and inside of the BSC10 chamber a few times throughout the install of these on Tuesday and today - in all cases, the numbers have been less than 30 for all sizes of particle.