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Reports until 10:49, Tuesday 09 August 2022
H1 TCS
camilla.compton@LIGO.ORG - posted 10:49, Tuesday 09 August 2022 (64385)
ETMY HWS new references but ITMY reflection still getting to camera

After replacing the ETMY HWS plate last week (alog 64287), this morning I took new HWS ETMY references with ALS shuttered and HWS camera at 20Hz. EY ring heater is on at 1W/segment. Sadly the ITMY retro-reflection is still getting back to the EY camera. See images with and without ITMY aligned. More work will need to be done to get rid of this refelction.

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