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ID Date Authorup Type Category Subject Text Attachments
  16962   Wed Jun 29 14:28:06 2022 PacoSummaryALSALS beat allan deviation (XARM)I guess it didn't make sense since
f_beat can be arbitrarily moved, but the
beat is taken around the PSL freq ~ 281.73
 frac_adev_xbeat.pdf 
  16965   Thu Jun 30 18:06:22 2022 PacoUpdateALSOptimum ALS recovery - part I[Paco]

In the morning I took some time
to align the AUX beams in the XEND table.
 als_ool_06_2022.png 
  16975   Wed Jul 6 19:58:16 2022 PacoSummaryNoiseBudgetXARM noise budget[Anchal, Paco, Rana]

We locked the XARM
using POX11
 xarm_nb_2022_07.pdf 
  16988   Mon Jul 11 19:29:23 2022 PacoSummaryGeneralFinalizing recovery -- timing issues, cds, MC1[Yuta, Koji, Paco]

Restarting
CDS

We were having
  
  16994   Tue Jul 12 19:46:54 2022 PacoSummaryALSHow (not) to take NPRO PZT transfer function[Paco, Deeksha, rana]

Quick elog for this evening:


Rana disabled MC servo
  
  16997   Wed Jul 13 12:49:25 2022 PacoSummarySUSSUS frozen[Paco, JC, Yuta]

This morning, while investigating
the source of a burning smell, we turned
  
  17007   Fri Jul 15 19:13:22 2022 PacoSummaryLSCFPMI with REFL/AS55 demod phase adjust[Yuta, Paco]


We first zero the offsets
in ASDC, AS55, REFL55, POX11, and POY11 when
  
  17012   Mon Jul 18 16:39:07 2022 PacoSummaryLSCFPMI locking procedure using REFL55 and AS55[Yuta, Paco]

In summary, we locked FPMI using
REFL55_I, REFL55_Q, and AS55_Q. The key to
 DARM_07_18_2022_FMPI.pdfCARM_07_18_2022_FPMI.pdfMICH_07_18_2022_FPMI.pdffpmi_darm_nb_2022_07.pdf 
  17021   Wed Jul 20 11:58:45 2022 PacoSummaryGeneralJenne laser kaput?[Paco, Yehonathan, JC]

We were trying to setup the Jenne
laser to characterize the response of three
  
  17022   Wed Jul 20 14:12:07 2022 PacoSummaryGeneralJenne laser kaput![Koji, Yehonathan, Paco]

Koji pointed out that this laser
was always driven with a current driver (which
  
  17024   Wed Jul 20 18:07:52 2022 PacoUpdateBHDBHD MICH test[Paco, Yuta, JC]

We did some easy tests on the BHD
readout in preparation for BHD MICH. With
 BHD_MICH_OSC.pdf 
  17030   Mon Jul 25 09:05:50 2022 PacoSummaryGeneralTesting 950nm laser found in trash pile[Paco, Yehonathan]

==== Late elog from Friday ====

Koji provided us with a QFLD-950-3S
 PXL_20220722_234600124.jpgPXL_20220722_234551918.jpg 
  17037   Tue Jul 26 20:54:08 2022 PacoUpdateBHDBHD MICH test - LO phase control[Yuta, Paco]


TL;DR
Successfully
 20220726_BICHD.pdf 
  17102   Wed Aug 24 12:02:24 2022 PacoUpdateSUSITMX SUS is sus UL glitches?[Yehonathan, Paco]

This morning, while attempting
to align the IFO to continue with noise-budgeting,
 ITMX_UL_badness_08242022.png 
  17104   Thu Aug 25 15:24:06 2022 PacoHowToElectronicsRFSoC 2x2 board -- fandango[Paco, Chris Stoughton, Leo -- remote]

This morning Chris came over to
the 40m lab to help us get the RFSoC board
 adc0_1137MHz.pngadc1_1137MHz.pngrfdc_PLLsettings.pngclockingwiz_settings.pngblockIPdiag.png 
  17133   Tue Sep 6 17:39:40 2022 PacoUpdateSUSLO1 LO2 AS1 AS4 damping loop step responsesI tuned the local damping gains for LO1,
LO2, AS1, and AS4 by looking at step responses
in the DOF basis (i.e. POS, PIT, YAW, and
 LO1_Step_Response_Test_2022-09-06_17-19.pdfLO2_Step_Response_Test_2022-09-06_17-30.pdfAS1_Step_Response_Test_2022-09-06_17-53.pdfAS4_Step_Response_Test_2022-09-06_18-16.pdf 
  17142   Thu Sep 15 21:12:53 2022 PacoUpdateBHDLO phase "dc" controlLocked the LO phase with a MICH offset=+91.
The LO is midfringe (locked using the A-B
zero crossing), so it's far from being
 lophase_oltf.pdflophase_noise_spectra.pdf 
  17143   Mon Sep 19 17:02:57 2022 PacoSummaryGeneralPower Outage 220916 -- restored allRestore lab

[Paco, Tega, JC,
Yehonathan]

We followed the instructions 
  
  17145   Tue Sep 20 07:03:04 2022 PacoSummaryGeneralPower Outage 220916 -- restored all[JC, Tega, Paco ]

I would like to mention that during
the Vacuum startup, after the AUX pump was
  
  17150   Wed Sep 21 17:01:59 2022 PacoUpdateBHDBH55 RFPD installed - part I[Radhika, Paco]

Optical path setup

We
realized the DCPD - B beam path was already
 IMG_3760.jpegIMG_3764.jpeg 
  17159   Mon Sep 26 11:39:37 2022 PacoUpdateBHDBH55 RFPD installed - part II[Paco, Anchal]

We followed rana's suggestion
for stress relief on the SMA joint in the
 PXL_20220926_175010061.MOTION.jpgBH55_Transimpedance_Measurement.pdf 
  17160   Tue Sep 27 10:50:11 2022 PacoUpdateBHDcalibrated LO phase noiseLocked LO phase to ITMX single bounce beam
at the AS port, using the DCPD (A-B) error
point and actuating on LO1 POS. For this
 lo_phase_asd.pdf 
  17161   Wed Sep 28 16:37:26 2022 PacoUpdateBHDcalibrated LO phase noise; update[yuta, paco]

Update; the high frequency ( >
100 Hz) drop is of course not real and comes
 lo_phase_asd.pdf 
  17163   Wed Sep 28 21:54:08 2022 PacoUpdateBHDcalibrated LO phase noise; updateRepeated the LO phase noise measurement,
this time with the LO - ITMY single
bounce, and a couple of fixes Koji
 dcpd_phase_asd.pdflo_phase_asd.pdf 
  17167   Fri Sep 30 20:18:55 2022 PacoUpdateBHDLO phase noise with different actuation points[Paco, Koji]

We took lo phase noise spectra
actuating on the for different optics-- LO1,
 BHDC_asd_actuation_point.png 
  17171   Mon Oct 3 15:19:05 2022 PacoUpdateBHDLO phase noise and control after violin mode filters[Anchal, Paco]

We started the day by taking a
spectrum of C1:HPC-LO_PHASE_IN1,
 filters_c1sus_lo1_lsc.pngBHDC_asd_act.pngboosted_lo_phase_control.png 
  15857   Wed Mar 3 12:00:58 2021 Paco, AnchalHowToIMCMC_F ASD[Paco, Anchal]

- Saved BURT backup in /users/anchal/BURTsnaps/
- Copied existing code for mode cleaner
 20210303_MC_F_Spectrum.pdf20210303_MC_F_Spectrum.tar.gz 
  15861   Thu Mar 4 10:54:12 2021 Paco, AnchalSummaryLSCPOY11 measurement, tried to lock Green Yend laser[Paco, Anchal]

- First ran burtgooey as last time.

- Installed pyepics on base environment
 20210304_POY11_Spectrum_YARMLocked.pdf20210304_POY11_Spectrum_YARMLocked.tar.gz 
  15862   Thu Mar 4 11:59:25 2021 Paco, AnchalSummaryLSCWatchdog tripped, Optics damped backGautam came in and noted that the optics
damping watchdogs had been tripped by a >5
magnitude earthquake somewhere off the coast
  
  15877   Mon Mar 8 12:01:02 2021 Paco, AnchalSummarytrainingInvestigate how-to XARM locking[Paco, Anchal]

- Started zoom stream; thanks to
whoever installed it!
  
  15884   Tue Mar 9 10:57:06 2021 Paco, AnchalSummaryIMCXARM lock and POX spectra[Paco, Anchal]

- Upon arrival, MC is locked, and
we can see light in MON5 (PRM) (usually dark).
 20210309_POX11_Spec_XARMLocked.pdf20210309_XARM_Locked.tar.gz 
  15893   Wed Mar 10 11:46:22 2021 Paco, AnchalSummaryIMCIMC free swinging prep[Paco, Anchal]

# Initial State
- MC is locked. The PRM monitor shows
  
  15897   Wed Mar 10 15:35:25 2021 Paco, AnchalSummaryIMCIMC free swinging experiment set to trigger at 5:00 amA tmux session named "MCFreeSwingTest"
will run on Rossa. This session is running
script scripts/SUS/freeSwingMC.py (also attached)
 freeSwingMC.py.zip 
  15902   Thu Mar 11 08:13:24 2021 Paco, AnchalUpdateSUSIMC First Free Swing Test failed due to typo, restarting now[Paco, Anchal]

The triggered code went on at 5:00
am today but a last minute change I made
  
  15912   Fri Mar 12 11:44:53 2021 Paco, AnchalUpdatetrainingIMC SUS diagonalization in progress[Paco, Anchal]

- Today we spent the morning shift
debugging SUS input matrix diagonalization.
  
  15919   Mon Mar 15 08:55:45 2021 Paco, AnchalSummarytraining [Paco, Anchal]


Found IMC locked upon arrival.
Since
"allegra" was set up as an additional
 IMC_InputMatrixDiagonalization.pdfinputMatrixCalculationMC.tarfreeSwingMC.py.tarSUSfreeswing_1299514263.txt.tar 
  15926   Tue Mar 16 19:13:09 2021 Paco, AnchalUpdateSUSFirst success in Input Matric DiagonalizationAfter jumping through few hoops, we have
one successful result in diagonalizing the
input matrix for MC1, MC2 and MC3.
 IMC_InputMatrixDiagonalization.pdfInMatCalcScripts.zip 
  15928   Wed Mar 17 09:05:01 2021 Paco, AnchalConfigurationComputers40m Control Room Changes
Switched positions of allegra and
donatella.
While doing so, the
hdmi cable previously used by donatella snapped.
  
  15937   Thu Mar 18 09:18:49 2021 Paco, AnchalUpdateSUSTesting of new input matrices with new data[Paco, Anchal]

Since the new generated matrices
were created for the measurement made last
 MC_Optics_Kicked_Time_Series_1.pdfTEST_Input_Matrix_Diagonalization.pdf 
  15943   Fri Mar 19 10:49:44 2021 Paco, AnchalUpdateSUSTrying coil actuation balance[Paco, Anchal]


We decided to try out the
coil actuation balancing after seeing some
  
  15951   Mon Mar 22 11:57:21 2021 Paco, AnchalUpdateSUSTrying coil actuation balance[Paco, Anchal]


For MC coil balancing we
will use the ASC (i.e. WFS) error signals
 210322_MC1_ASCY.pdfNewandOldMatrices.tar.gz 
  15954   Mon Mar 22 19:07:50 2021 Paco, AnchalUpdateSUSTrying coil actuation balanceWe found that following protocol works
for changing the input matrices to new matrices:


Shut the PSL shutter C1:PSL-PSL_ShutterRqst.
 8x 
  15955   Tue Mar 23 09:16:42 2021 Paco, AnchalUpdateComputersPower cycled C1PSL; restored C1PSLSo actually, it was the C1PSL channels
that had died. We did the following to get
them back:
 MCWFS1and2PITYAW.pdfMCWFS1and2PITYAW_Zoomed.pdf 
  15961   Thu Mar 25 11:46:31 2021 Paco, AnchalUpdateSUSMC2 Coil Balancing updatesProof-of-principle


We
excited PIT and YAW dofs using LOCKIN1 in
MC2 on Monday.
We
 CoilActuationBalancing.ipynb.tar.gzMC2_CoilBalancePITnorm_excSamePIT.pdfMC2_CoilBalanceYAWnorm_excSameYAW.pdf20210325_IMC_CoilBalance.tar.gz 
  15970   Fri Mar 26 11:54:37 2021 Paco, AnchalUpdateSUSMC2 Coil Balancing updates[Paco, Anchal]


Today
we spent the morning testing the scripts
  
  15972   Mon Mar 29 10:44:51 2021 Paco, AnchalUpdateSUSMC2 Coil Balancing updatesWe ran the coil balancing procedure 4 times
while iterating through the output matrix
optimization.
 MC2OutMatCrossCouple_Old-to-It3.pdf20210329_MC2_CrossCoupleTest.tar.gz 
  16233   Thu Jul 1 10:34:51 2021 Paco, AnchalSummaryLSCETMY QPD fixedPaco worked on alignign the beam splitter
to get light on the ETMY QPD and was successful
in centering it without any other changes
  
  16238   Tue Jul 6 10:47:07 2021 Paco, AnchalUpdateIOORestored MCMC was unlocked and struggling to recover
this morning due to misguided WFS offsets.
In order to recover from this kind of issue,
  
  5418   Thu Sep 15 16:45:59 2011 PaulUpdateSUSITMY and SRM Oplev statusToday I worked on getting the ITMY and
SRM oplevs back in working order. I aligned
the SRM path back onto the QPD. I put excitations
  
  5422   Thu Sep 15 18:24:54 2011 PaulUpdateSUSITMY and SRM Oplev current status - comparison with ITMYJust to find out where we are currently,
I plotted the ITMY and SRM oplev spectra
along with the ETMY oplev spectra. ETMY seems
 oplev_spectra_comparison.pdf 
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