Reports until 13:18, Monday 10 February 2025
H1 SUS (SEI, SUS)
joshua.freed@LIGO.ORG - posted 13:18, Monday 10 February 2025 (82726)
ETMX BOSEM Noise Injections

J. Freed

ETMX shows strong coupling of BOSEM noise between 10-20Hz by about a factor of 30 below DARM from most sensors.

Today I did damping loop injections on all 6 BOSEMs on the ETMX M0. This is a continuation of the work done previously for ITMX, ITMY, PR2, PR3, PRM, SR2, SR3, and SRM. As with PRM, gains of 300 and 600 were collected for SR3 (300 is labled as ln or L).  Calibration lines were off.

The plots, code, and flagged frequencies are located at /ligo/home/joshua.freed/bosem/ETMX/scripts. While the diaggui files are at /ligo/home/joshua.freed/bosem/ETMX/data for ETMX. I used Sheila code located under /ligo/home/joshua.freed/bosem/ETMX/scripts/osem_budgeting.py to produce the sum of all contributions as well as the individual plots.
 
ETMX.png Is a plot of ETMX estimated contributions to DARM using only the 600 gain data. All F sensors have a strang effect.
main.png Shows the current noise plot for most of the suspensions done so far
 
reference number in diaggui files for ETMX
Background time: (ref0 DARM, ref1 F1_out, ref2 F2_out, ref3 F3_out, ref4 LF_out, ref5 RT_out, ref6 SD_out)
F1L time:                (ref7 DARM, ref8 F1_out)
F1 time:                  (ref9 DARM, ref10 F1_out)
F2L time:               (ref11 DARM, ref12 F2_out)
F2 time:                 (ref13 DARM, ref14 F2_out)
F3L time:              (ref15 DARM, ref16 F3_out)
F3 time:                (ref17 DARM, ref18 F3_out)
LFL time:              (ref19 DARM, ref20 LF_out)
LF time:                (ref21 DARM, ref22 LF_out)
RTL time:              (ref23 DARM, ref24 RT_out)
RT time:                (ref25 DARM, ref26 RT_out)
SDL time:             (ref27 DARM, ref28 SD_out)
SD time:               (ref29 DARM, ref30 SD_out)

 

Images attached to this report