Note from T1000430-v2 that glue was EP30-2 not TRA-Bond 2101 as called out in D1001955-v1.
PMC /// Average Loss /Mirror, ppm (each mea.) // Comments
PMC-08 50.2 ± 3.9 (43.0, 55.2, 40.6, 56.2, 61.8, 44.2) Swapped out at LLO, faulty PZT (original L1 unit)
PMC-09 46.1 ± 3.4 ( 55.4, 52.4, 52.5, 48.0, 41.2, 32.6, 40.3) 3rd interferometer unit
PMC-10 1375 ± 51 (1414, 1422, 1290) Swapped out at LLO, extra loss. (original H1 spare)
PMC-11 4169 ± 57 (4212, 4126) 3rd interferometer unit, shipped to LLO for O1 spare, then back to LHO.
This mirror came off within 5 minutes - heated with the equivalent of a blow dryer, which one can hold hand 4†in front of. GB encouraged the release using a screwdriver and a hammer at the PZT/Mirror interface. GB & CT.
Dark Field microscope Inspection of one "tank" mirror shows typical contamination (particulate) but not the haze seen on the inside of the PMC cavity mirrors. - GB
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