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Reports until 12:31, Monday 17 July 2023
H1 SUS (ISC)
camilla.compton@LIGO.ORG - posted 12:31, Monday 17 July 2023 (71404)
Higher harmonics of violins remaining rung up thoughout locks.

Since our violins troubles June 26/27th, 7112971342, 71063, the higher harmonics have remained very rung-up, see attached plot. These higher harmonics do not damp during our lock although Rahul and the SUS team are starting to look into doing this. Jenne suggested in 71063 that this could be the cause of our fundamentals re-ringing up on each lockloss.

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