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IDup Date Author Type Category Subject Text Attachments
  16595   Wed Jan 19 12:50:10 2022 AnchalSummaryBHDPart IV of BHR upgrade - SR2 OSEM tuning progress.It was indeed the issue of the top OSEM
plate not being in the right place horizontally.
But the issue was more non-trivial. I believe
  
  16596   Wed Jan 19 12:56:52 2022 PacoSummaryBHDAS4 OSEMs installation[Paco, Tega, Anchal]

Today, we started work on AS4 SOS
by checking the OSEM and cable. Swapping
  
  16597   Wed Jan 19 14:41:23 2022 KojiUpdateBHDSuspension StatusIs this the correct status? Please
directly update this entry.


  
  16598   Wed Jan 19 16:22:48 2022 AnchalUpdateBHDPR2 transmission calculation updatedI have further updated my calculation.
Please find the results in the attached pdf.

Following is the description of
 PR2transmissionSelectionAnalysis.pdfPR2_Trans_Calc.ipynb.zip 
  16599   Wed Jan 19 18:15:34 2022 YehonathanUpdateBHDAS1 resurrectionToday I suspended AS1. Anchal helped me
with the initial hanging of the optics. Attachments
1,2 show the roll balance and side magnet
 AS1_roll_balance2.pngAS1_magnet_heigh2.pngFreeSwingingSpectra.pdfIMG_6324.JPG 
  16600   Wed Jan 19 21:39:22 2022 TegaUpdateSUSTemporary watchdogAfter some work on the reference database
file, we now have a template for temporary
watchdog implementation for LO1 located here
  
  16601   Thu Jan 20 00:26:50 2022 KojiUpdateSUSTemporary watchdogAs the new db is made for c1susaux, 1)
it needs to be configured to be read by c1susaux
2) it requires restarting c1susaux 3) it
  
  16602   Thu Jan 20 01:48:02 2022 KojiUpdateBHDPR2 transmission calculation updatedIMC is not such lossy. IMC output is supposed
to be ~1W.

The critical coupling condition
  
  16603   Thu Jan 20 12:10:51 2022 YehonathanUpdateBHDAS1 resurrectionI was wondering whether I should take AS1
down to redo the wire clamping on the side
blocks. I decided to take the OpLev spectrum
 FreeSwingingSpectra.pdfFreeSwingingSpectra_div_20mV.pdfFreeSwingingSpectra_div_50mV.pdf 
  16604   Thu Jan 20 16:42:55 2022 PacoUpdateBHDAS4 OSEMs installation - part 2[Paco]

Turns out, the shifting was likely
due to the table level. Because I didn't
  
  16605   Thu Jan 20 17:03:36 2022 AnchalSummaryBHDPart IV of BHR upgrade - SR2 OSEM tuned.The main issue with SR2 OSEMs, now that
I think of it, was that the BS table was
very inclined due to the multiple things
 DJI_0144.JPG 
  16606   Thu Jan 20 17:21:21 2022 TegaUpdateSUSTemporary watchdogTemp software watchdog now operational
for LO1 and the remaining optics!

Koji helped me understand how to
  
  16607   Thu Jan 20 17:34:07 2022 KojiUpdateBHDV6-704/705 Mirror now @DownsThe PR2 candidate V6-704/705 mirrors (Qty2)
are now @Downs. Camille picked them up for
the measurements.
 PXL_20220120_225248265_2.jpgPXL_20220120_225309361_2.jpg 
  16608   Thu Jan 20 18:16:29 2022 AnchalUpdateBHDAS4 set to trigger free swing testAS4 is set to go through a free swinging
test at 10 pm tonight. We have used this
script (Git/40m/scripts/SUS/InMatCalc/
  
  16609   Thu Jan 20 18:41:55 2022 AnchalSummaryBHDSR2 set to trigger free swing testSR2 is set to go through a free swinging
test at 3 am tonight. We have used this script
(Git/40m/scripts/SUS/InMatCalc/freeSwing.py)
  
  16610   Fri Jan 21 11:24:42 2022 AnchalSummaryBHDSR2 Input Matrix Diagonalization performed. The free swinging test
was successful. I ran the input matrix diagonalization
code (
 SR2_SUS_InpMat_Diagnolization_20220121.pdfSR2_FreeSwingData_PeakFitting_20220121.pdf 
  16611   Fri Jan 21 12:46:31 2022 TegaUpdateCDSSUS screen debuggingAll done (almost)! I still have not sorted
the issue of pitch and yaw gains growing
together when modified using ramping time.
 Custom_ADC_DAC_monitors.png 
  16612   Fri Jan 21 14:51:00 2022 KojiUpdateBHDV6-704/705 Mirror now @DownsCamille@Downs measured the surface of these
M1 and M2 using Zygo.
 M1.PNGM1_30mm.PNGM2.PNGM2_30mm.PNG 
  16613   Fri Jan 21 16:40:10 2022 AnchalUpdateBHDAS4 Input Matrix Diagonalization performed. The free swinging test was successful.
I ran the input matrix diagonalization code
(/opt/rtcds/caltech/c1/Git/40m/scripts/SUS/InMAtCalc/sus_diagonalization.py)
 AS4_SUS_InpMat_Diagnolization_20220121.pdfAS4_FreeSwingData_PeakFitting_20220121.pdf 
  16614   Mon Jan 24 12:33:41 2022 ranaConfigurationWikiAIC Wiki: txz files allowedI updated the mime.local.conf file for
the AIC Wiki so as to allow attachments with
the .txz
  
  16615   Mon Jan 24 17:10:25 2022 TegaSummaryComputer Scripts / ProgramsSUS Plant Plan for New Optics[Ian, Tega]

Connected the New SUS screens to
the controller for the simplant model. Because of
 Screen_Shot_2022-01-24_at_5.33.15_PM.png 
  16616   Mon Jan 24 17:12:27 2022 ranaUpdateBHDAS4 Input Matrix Diagonalization performed. I think our
suspension input matrix diagonalization is
not so robust usually because
  
  16617   Mon Jan 24 17:58:21 2022 YehonathanUpdateBHDPR2 SuspensionI picked up the PR2 mirrors (labeled M1,
M2) from Anchel's table and took them
to the cleanroom. By inspection, I spotted
  
  16618   Mon Jan 24 18:53:09 2022 AnchalSummaryBHDPart VIII of BHR upgrade - LO2 placed and OSEMs tunedI placed LO2 in its planned position in
BS chamber, inserted the OSEMs, and tuned
their position to halfway brightness. At
  
  16619   Mon Jan 24 20:48:48 2022 AnchalUpdateBHDAS4 Input Matrix Diagonalization performed. I agree. That's an interesting idea.
But does that mean that there is an always
working inverse matrix solution or that any
  
  16620   Mon Jan 24 21:18:40 2022 PacoSummaryBHDPart IX of BHR upgrade - AS1 placed and OSEM tuned[Paco]

AS1 was installed in the ITMY chamber
today. For this I moved AS4 to its nominal
  
  16621   Tue Jan 25 10:55:02 2022 AnchalSummaryBHDPart VIII of BHR upgrade - LO2 input matrix diagonalization performed.The free swinging test was successful.
I ran the input matrix diagonalization code
(/opt/rtcds/caltech/c1/Git/40m/scripts/SUS/InMAtCalc/sus_diagonalization.py)
  
  16622   Tue Jan 25 11:02:54 2022 AnchalSummaryBHDPart IX of BHR upgrade - AS1 free swing test failedFor some reasonf the free swing test showed
only one resonance peak (see attachment 1).
This probably happened because one of the
 AS1_freeSwingTestFailed.pdf 
  16623   Tue Jan 25 16:42:03 2022 AnchalSummaryBHDReduced filter gains in all damped new SOSI noticed that our current suspension damping
loops for the new SOS were railing the DAC
outputs. The reason being that cts2um module
  
  16624   Tue Jan 25 18:37:12 2022 TYehonathanUpdateBHDPR2 SuspensionPR2's side magnet height was adjusted
and its roll was balanced (attachment 1,2).
I verified that the OpLev beam is still aligned.
 PR2_magnet_height.pngPR2_roll_balance.pngFreeSwingingSpectra_div_50mV.pdf 
  16625   Thu Jan 27 08:27:34 2022 PacoSummaryBHDPart IX of BHR upgrade - AS1 inspection and correction[Paco]

This morning, I went into ITMY
chamber to inspect AS1 after the free swinging
  
  16626   Thu Jan 27 16:40:57 2022 TegaSummaryComputer Scripts / ProgramsSUS Plant Plan for New Optics[Ian, Paco, Tega]

Last night we set up the four main
matrices that handle the conversion between
 simplant_control_1.pngsimplant_control_0.png 
  16627   Thu Jan 27 17:57:35 2022 AnchalSummaryBHDPart III of BHR upgrade - Replaced small suspended PR3 with new SOS PR3 and OSEM tuning[Anchal, Paco]

We removed the old PR3 housed in
a tip-tilt style suspension and put it on
  
  16628   Thu Jan 27 18:03:36 2022 PacoSummaryBHDPart III of BHR upgrade - Install PR2, balance, and attempt OSEM tuning[Paco, Anchal, Tega]

After installing the short OSEMs
into PR2, we moved it into ITMX Chamber.
  
  16629   Thu Jan 27 20:46:38 2022 KojiSummaryBHDPart III of BHR upgrade - Install PR2, balance, and attempt OSEM tuning
Started debugging D1002818
/ S2100737
(8:30PM)
Confirmed the issue of
 Screen_Shot_2022-01-27_at_20.33.56.pngScreen_Shot_2022-01-27_at_21.30.16.png 
  16630   Fri Jan 28 10:37:59 2022 PacoSummaryBHDPart III of BHR upgrade - PR2 OSEM finalized, reinsall LO1 OSEMs[Paco]

Thanks to Koji's hotfix on
the PR2 SatAmp box last evening, this morning
  
  16631   Fri Jan 28 11:30:52 2022 KojiSummaryBHDPart III of BHR upgrade - PR2 OSEM finalized, reinsall LO1 OSEMsAll
green! Great work, Team!
  
  16632   Fri Jan 28 16:35:18 2022 AnchalSummaryBHDAS1, PR2 and PR3 set to trigger free swing testAS1, PR2 and PR3 are set to o go through
a free swinging test at 3 am. We have used
this script 
  
  16634   Mon Jan 31 10:39:19 2022 JordanUpdateVACTP1 and Manual Gate Valve RemovalJordan, Chub

Today, Chub and I removed TP1 and
the failed manual gate valve off of the pumping
 20220131_100637.jpg20220131_102807.jpg20220131_102818.jpg20220131_100647.jpg 
  16635   Tue Feb 1 15:33:28 2022 KojiSummaryBHDOptomechanics configuration for the in-vacuum aux small opticsI've summarized the optomechanics configuration
for the in-vacuum aux small optics

It's not obvious here but the
 Invac_opto_mechanics_v2.pdf 
  16636   Tue Feb 1 20:16:09 2022 TegaUpdateBHDPR2 candidate mirror analysisgit repo: git@git.ligo.org:tega-edo/charmirrormap.git

The analysis code takes in a set
of raw images, 10 in our case,  for
 PR2_M2_data.pngPR2_M2_recon_FoV_10mm.pngPR2_M2_residual_FoV_10mm.png 
  16637   Wed Feb 2 16:22:00 2022 AnchalSummaryBHDPart III of BHR upgrade - PR2 inpute matrix diagonalizedThe
free swinging test was successful. I
ran the input matrix diagonalization code
 PR2_FreeSwingData_PeakFitting_20220125.pdfPR2_SUS_InpMat_Diagnolization_20220202.pdf 
  16638   Wed Feb 2 16:27:57 2022 AnchalSummaryBHDPart III of BHR upgrade - PR3 inpute matrix diagonalizedThe
free swinging test was successful. I
ran the input matrix diagonalization code
 PR3_FreeSwingData_PeakFitting_20220125.pdfPR3_SUS_InpMat_Diagnolization_20220202.pdf 
  16639   Wed Feb 2 16:32:02 2022 AnchalSummaryBHDPart IX of BHR upgrade - AS1 free swing test still not goodWe still did not get a good AS1 free swinging
spectrum. It seems the Side OSEM is reporting
coupling to too many DOFs and some extra
 AS1_FreeSwingData_PeakFitting_20220125.pdfAS1_SUS_InpMat_Diagnolization_20220202.pdf 
  16640   Wed Feb 2 18:55:58 2022 KojiSummaryBHDOptomechanics configuration for the in-vacuum aux small opticsHere is more detail of the POP_SM4
mount assembly.

It's a combination of BA2V
 Screen_Shot_2022-02-02_at_6.46.46_PM.png 
  16641   Wed Feb 2 21:16:23 2022 KojiSummaryBHDOptomechanics configuration for the in-vacuum aux small opticsAsked Jordan to clean 2x 1.5" posts
(0.5 dia) and a washer with 1" dia.

 
 PXL_20220203_050156031.jpg 
  16643   Thu Feb 3 10:25:59 2022 JordanUpdateVACTP1 and Manual Gate Valve InstallJordan, Chub

Chub and I installed the new manual
gate valve (Nor-Cal GVM-6002-CF-K79) and
 20220203_101455.jpg20220203_094831.jpg20220203_094823.jpg 
  16644   Thu Feb 3 14:47:12 2022 ChubUpdateElectronicsnew UPS in placeReceived the new 1100VA APC UPS today and
placed it at the bottom of the valve rack. 
I'd connected the battery and plugged
  
  16645   Thu Feb 3 17:15:23 2022 TegaSummaryComputer Scripts / ProgramsSUS Plant Plan for New OpticsFinally got the SIMPLANT damping to work
following Rana's suggestion to try damping
one DoF at a time, woo-hoo!
 Screen_Shot_2022-02-03_at_8.23.07_PM.png 
  16646   Fri Feb 4 10:04:47 2022 ChubUpdateGeneraldish soap and clean scrub sponges!Bought dish soap and scrub sponges today
and placed them under the sink with the other
dish supplies.
 40m_supplies.jpg 
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