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AdV-TCS (CO2 laser projector)
fafone, giri, lumaca, nardecchia, rocchi - 2:29 Saturday 23 January 2021 (50552) Print this report
NI CH Centering
The goal of the shift was to identify the position of the CH beam on CP. We moved the CH beam on the CP along the path shown in fig.1, we could see the CH lens in position 21. The WF acquired at 00:57 LT is shown in fig.2. At 1:15 LT, we switched off CH to avoid the unlock of the North cavity.
At 1:20 LT, we switched on the RH by applying 45W, and at 02:15 LT, we switched on the CH (P= 0.8W). Fig.3 shows the HWS-DET map with RH and CH on. At 02:25 LT, we turned off the CH and at 02:26 LT, we switched off the RH. Some more centring of CH is needed.

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