lanceanderson.blagg@LIGO.ORG - posted 10:45, Wednesday 30 August 2023 - last comment - 10:59, Wednesday 30 August 2023(72535)
Range Improvements from Friday 8/25
After commissioning on Friday 8/25 we saw a significant jump in range. Initially we were unsure whether it was due to the chiller pump at EY being replaced or due to the commissioning work that Elenna and Gabriele did (72430). Upon further investigation it looks like the range improvement was related to the MICH FF changes and not the chiller pump. NDScope plots attached showing the range related to the FF work, and a plot of DARM just before and after the FF changes.
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I forgot to mention that the chiller pump installation finished around 15:30 PDT, +/- 15 minutes. No significant range changes were seen in this timespan.