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Reports until 15:53, Friday 15 March 2024
H1 CAL
louis.dartez@LIGO.ORG - posted 15:53, Friday 15 March 2024 - last comment - 18:20, Friday 15 March 2024(76438)
Retuned L2 and L3 SUS Line Heights
[Elenna, Louis]

We reduced the amplitudes of the L2 and L3 SUS calibration lines. Both lines were way too loud after moving to the new DARM loop offloading configuration. The settings we ended up on are below:


Line | Freq | Gain | DELTA_L/SUS_EXC uncertainty 

L2   | 16.4 Hz | 1.5 | 0.0058
L3   | 17.6 Hz | 0.061 | .0046


For each step I changed all of the following channels:
H1:SUS-ETMX_L2_CAL_LINE_CLKGAIN, H1:SUS-ETMX_L2_CAL_LINE_SINGAIN, H1:SUS-ETMX_L2_CAL_LINE_COSGAIN, H1:CAL-CS_TDEP_SUS_LINE2_COMPARISON_OSC_CLKGAIN, H1:CAL-CS_TDEP_SUS_LINE2_COMPARISON_OSC_SINGAIN, H1:CAL-CS_TDEP_SUS_LINE2_COMPARISON_OSC_COSGAIN

I'm attaching the CAL-CS SUS Line screens for both lines. Red boxes highlight the gains that we adjusted.
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louis.dartez@LIGO.ORG - 18:20, Friday 15 March 2024 (76446)
i updated the cal line heights in lscparams.py and accepted the attached sdfs.
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