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Optical characterization (Optical characterization)
nardecchia, bersanetti, derossi, gosselin, gouaty, melo, magazzu - 19:43 Tuesday 07 May 2024 (64205) Print this report
ITF WP characterization

The goal of the shift was to characterize the ITF working point with the following RH powers:

RH powers 

NE

WE

Current settings

6.9 W

[V=16.04 V]

8.4 W

[V=17.67 V]

The actions performed during the shift are listed below:

13.08 UTC: ITF relocked in LN3

14.18 UTC: ITF manually unlocked to perform input beam mode matching measurement with the free swinging technique and green laser scan (performed by Suzanne, Camilla and Matthieu).

                    See detailes in 64204

15.03 UTC: ITF relocked in CARM NULL 1F

16.08 UTC: OMC scan started (performed by Romain and Andrea)

16.30 UTC: OMC scan ended 

16.52 UTC: ITF relocked in LN2

After 1.5 hr in LN2, at 18.20 UTC, Andrea will proceed with the lock acquisition.

The main ITF signals during this afternoon are shown in figure 1.

Images attached to this report
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