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IDup Date Author Type Category Subject Text Attachments
  14053   Wed Jul 11 16:50:34 2018 poojaUpdateCamerasUpdate in developing neural networksAim: To develop a neural
network that resolves mirror motion from
 graphs.pdf 
  Draft   Wed Jul 11 18:13:19 2018 keerthanaSummaryAUXGouy Phase Measurements from AUX-Laser ScansFrom the Measurement Jon made, FSR is 3.967
MHz and the Gouy phase is 52 degrees. From
this, the length of the Y-arm cavity
  
  14055   Thu Jul 12 11:13:39 2018 gautamUpdateGeneralOMC revivalAaron and I are going to do the checkout
of the OMC electronics outside vacuum today.
At some point, we will also want to run a
  
  14056   Thu Jul 12 12:26:39 2018 aaronUpdateGeneralOMC revivalWe found a diagram describing the DC Readout
wiring
scheme on the wiki page for DC
  
  14057   Thu Jul 12 14:06:39 2018 keerthanaUpdateelogFinesse and Analytical solution - ComparisonI tried to compare the cavity scan data
we get from the Finesse simulation and that
we expect from the Analytical solution. The
 finesse_cavity.pngAnalytical1.pdfFinesse_Analytical.pdfDifference.pdf 
  14058   Thu Jul 12 15:15:47 2018 SandrineUpdate Beat Note Measurements for Cavity Scans(Gautam, Sandrine)

We calculated the expected power
of the beat note for Annalisa's Y arm
  
  14059   Thu Jul 12 16:18:22 2018 SteveUpdateVACVent preparationsWe are getting ready to vent.

 
 before_Vent.pngbefore_Vent_cond.png 
  14060   Thu Jul 12 21:16:25 2018 aaronUpdateOMCChecking OMC ElectronicsIn preparation for tomorrow's vent,
I'm checking some of the OMC-related
electronics we plan to use.
  
  14061   Thu Jul 12 23:59:14 2018 gautamUpdateGeneralVent objectives and prepVent
objectives:
  
  14062   Fri Jul 13 00:15:13 2018 Annalisa, TerraConfigurationAUXY arm cavity scan [Annalisa, Terra, Koji, Gautam]

Summary: We
find a configuration for arm scans which
 IMG_6492.JPGIMG_6494.JPG 
  14063   Fri Jul 13 02:52:11 2018 gautamUpdateGeneralVent objectives and prep[KA,
GV]
 preVentStatus.png 
  14064   Fri Jul 13 10:54:55 2018 aaronUpdateVACVent 80[aaron, steve]

Steve gave me a venting tutorial.
I'll record this in probably a bit more
 vent80wtiptilts.png 
  14066   Fri Jul 13 16:26:52 2018 SteveUpdateVACVent 80 is completing...Steve and Aaron,

6 hrs vent is reaching equlibrium
to room air. It took 3 and a half instrument
 @atm.pngvent80_7h.pngventregN2&Air_c.jpg 
  14067   Fri Jul 13 17:13:45 2018 KojiUpdateGeneralVent objectives and prepNotice:
I removed these 75Ohm video cables.
 P_20180713_020603.jpg 
  14068   Fri Jul 13 18:01:13 2018 gautamUpdateGeneralLow power MCAfter getting the go ahead from Steve,
I removed the physical beam block on the
PSL table, sent the beam into the IFO, and
  
  14069   Fri Jul 13 20:36:33 2018 KojiSummaryGeneralIn vac/In air heater wiring I went to the Y-end and took more photos
of the cable stand. These revealed that in-vac
pin #13 is connected to the shield of the
 heater_wiring.pdf 
  14070   Fri Jul 13 23:23:49 2018 poojaUpdateCamerasUpdate in developing neural networksAim: To develop a neural
network that resolves mirror motion from
 nn_simulation_2_nodes4_lr0p00001_beta1_0p8_beta2_0p85.pdfnn_simulation_2_nodes8_lr0p00001_beta1_0p8_beta2_0p85.pdf 
  14071   Fri Jul 13 23:39:46 2018 AnnalisaConfigurationThermal CompensationThermal compensation setup - power supply[Annalisa, Rana]

In order to power the heater setup
to be installed in the ETMY chamber,
 IMG_2012.jpgIMG_2013.jpg20180713_213818.jpg 
  14072   Sat Jul 14 16:04:34 2018 aaronUpdateOMCChecking OMC ElectronicsNext check is the DCPD/OMMT Satellite
Box

I traced a cable from the
OMC electrical feedthrough flanges to find
 Screenshot_2018-07-14_17.53.40.pngScreenshot_2018-07-14_17.57.17.png 
  14073   Mon Jul 16 15:07:19 2018 KojiSummaryVACOven C vent[Steve Koji]

- Attachment1: Removed the thermal
cap. Checked the temperature of the oven.
 P_20180716_141512.jpgP_20180716_141601.jpgP_20180716_141610.jpgP_20180716_141827.jpgP_20180716_143901.jpg 
  14074   Mon Jul 16 18:12:00 2018 KojiUpdateVACAdding a manual gate valve between TP1 and V1/VM2[Steve Koji]

We are in the process of adding
a manual gate valve between TP1 (Osaka Maglev)
 P_20180716_155413.jpgP_20180716_155645.jpgP_20180716_155738.jpgP_20180716_162307.jpgP_20180716_172000.jpg 
  14075   Tue Jul 17 01:07:40 2018 gautamUpdateSUSETMY EQ stopsFor the heater setup on EY table, I EQ-stopped
ETMY. Only
  
  14076   Tue Jul 17 12:46:28 2018 ranaUpdateGeneralsome notes from yesterdayFor the EY, instead of balancing the table,
I just moved the weight approximately so
that the ETMY OSEMS were at half light, but
  
  14077   Tue Jul 17 12:55:45 2018 KojiSummaryGeneralStarted pumping[Steve, Koji, Gautam]

We started pumping down
at ~12:15PM.
 6x 
  14078   Tue Jul 17 17:37:46 2018 Annalisa, TerraConfigurationThermal CompensationHeaters installationSummary

We
installed two heaters setup on the ETMY bench
in order to try inducing some radius of curvature
 6x 
  14079   Tue Jul 17 18:16:38 2018 SteveSummaryVACpumpdown 81 at 6 hrsPrecondition:  4 days at atm.  
Atm5

HEPA tent used during the vent
 6x 
  14080   Tue Jul 17 22:25:41 2018 KojiSummaryVACpumpdown 81 at 6 hrs10:20PM


Opened VM2 to pump down
the RGA section with TP1
Stopped
  
  14081   Wed Jul 18 03:14:48 2018 AnnalisaUpdateGeneralVent 80 recovery[Gautam, Johannes, Koji, Annalisa]

Tonight we increased the power
of the PSL laser and we achieved the lock
  
  14082   Wed Jul 18 12:49:08 2018 SteveSummaryVACpumpdown 81 at 6 +4.5hrsThe manual gate valve scan was clean. Atm1
    TP1 was pumping on it overnight.

         
 manlGateScan.pnghanding_over_Mag.pngTGVw2auxfans_.jpg 
  14083   Wed Jul 18 17:36:50 2018 SteveSummaryVACpumpdown 81 at 6 +9 hrs completedIFO P1 6e-4 Torr,  manual gate valve
is fully open

The annuloses will be pumped down
 pd81completed.pngpd81@30hrs.png 
  14084   Wed Jul 18 23:43:50 2018 KojiUpdateGeneralVent 80 recoveryIs the reflector too close to the beam
and causing clipping?

 IMG_5868.JPGIMG_5382.JPG 
  14085   Thu Jul 19 01:56:25 2018 gautamSummaryVACAUX pump shutdown[koji,
gautam]

Per Steve's instructions, we
  
  14086   Thu Jul 19 04:44:09 2018 Annalisa, TerraSummaryThermal Compensationfrequency shift observed with heating!Annalisa, Gautum, Koji, Terra

Summary: with
the reflector setup, we measured a frequency
 scanning_fine_2018-07-19-07-32-08_parsed.pdfscanning_fine_2018-07-19-06-57-47_parsed.pdfYscan_scanning_parsed_2am.txt.pdf 
  14087   Thu Jul 19 11:01:03 2018 SteveSummaryVACpd81 @ 2e-5 TorrCold cathode gauge just turned on.  pd81@2days.png 
  14088   Thu Jul 19 13:35:30 2018 SteveSummaryVACannuloses pumped Roughing down the annuloses required closing
V1 for 13 minutes

IFO is 2.2e-5 Torr
 AnsPumped.png 
  14089   Thu Jul 19 18:09:17 2018 poojaUpdateCamerasUpdate in developing neural networksAim: To develop a neural
network that resolves mirror motion from
 nn_simulation_mlt_sine_nodes4_lr0p00001_beta1_0p8_beta2_0p85_marked.pdfnn_simulation_2_nodes4_target-1to1_marked.pdf 
  14090   Fri Jul 20 07:43:54 2018 SteveSummarySUSETMY  

 
 ETMY_leveling.pngETMY.png 
  14091   Fri Jul 20 18:30:47 2018 JonConfigurationAUXRecommend to install AUX PZT driverI recently realized that the PLL is only
using about 20% of the available actuation
range of the AUX PZT. The +/-10 V control
  
  14092   Fri Jul 20 22:51:28 2018 KojiUpdateIOOIMC WFS path alignmentIMC WFS tuning 

- IMC was aligned manually to have
maximum output and also spot at the center
  
  14093   Fri Jul 20 22:53:15 2018 KojiUpdateASSAttempt to resurrect Yarm ASS [Koji Gautam]

We managed to realize stable
ASS configuration for Yarm. The transmission
 02.png 
  14094   Sat Jul 21 01:06:49 2018 gautamSummaryThermal CompensationY arm lockingI implemented this today. For now, the
LSC output matrix is set to actuate on MC2
for Y arm locking. As expected, the transmission
  
  14095   Sat Jul 21 01:14:02 2018 gautamUpdateOMCPZT Jena driver board check[Aaron, gautam]

We did a quick check of this
board today. Main takeaways:
  
  14096   Sat Jul 21 14:03:19 2018 KojiSummaryThermal CompensationY arm lockingAh. With MC2 feedback, we have about 3
times smaller "optical gain" for
the ASS A2L. We have same dither, same actuator,
  
  14097   Sun Jul 22 14:01:07 2018 poojaUpdateCamerasDeveloping neural networks on simulated videoAim: To develop a neural
network that resolves mirror motion from
 nn_simulation_2_normalized_mult_sin_nodes8_128epochs_lr0p00001_beta1_0p8_beta2_0p85_0p4train_0p1valid_marked.pdfnn_simulation_normalizedtarget_128epochs_mult_sin_load_wt_varyingtest_nodes8_lr0p00001_beta1_0p8_beta2_0p85_0p4train_0p1valid_marked.pdfnn_simulation_2_normalized_varying_mult_sin_nodes8_128epochs_lr0p00001_beta1_0p8_beta2_0p85_0p4train_0p1valid_marked.pdf 
  14098   Mon Jul 23 09:58:52 2018 SteveSummaryVACRGA scan at day 6 

 
 pd81-560Hz-d6.png 
  14100   Tue Jul 24 06:11:50 2018 ranaUpdateCamerasDeveloping neural networks on simulated videoThis looks like good progress. Instead
of fixed sines or random noise, you should
generate now a time series for the motion
  
  14101   Tue Jul 24 09:47:51 2018 gautamUpdateCamerasDeveloping neural networks on simulated videoI was thinking a little more about the
way we are training the network for the current
topology - because the network has no recurrent
  
  14103   Wed Jul 25 14:45:59 2018 SandrineSummaryThermal CompensationETM Y Table AUX read outAttached is a photo of the set up of the
ETM Y table showing the AUX read out set
up. 
 EY_table_.JPG 
  14104   Wed Jul 25 22:46:15 2018 gautamConfigurationComputersNDS access from outsideAfter this work, I've been having some
trouble getting data with Python NDS. Eventually,
I figured out that the nds connection request
  
  14105   Thu Jul 26 01:52:01 2018 terraUpdateThermal Compensationheater work updateJust a quick update: over the past few
days we've taken (at least) 5 scans around
each peak [carrier - HOM3] at 9.4V/0.8A,
 OpLev_thermal_drift.pdfhotColdAll.pdf 
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