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ID Date Authorup Type Category Subject Text Attachments
  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 
  
  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 
  16647   Fri Feb 4 10:21:39 2022 AnchalSummaryGeneralComplete lab shutdownPlease edit this same
entry throughout the day for the shutdown
 Vac_Status_Screenshot_2022-02-04_10-19-24.png 
  16652   Wed Feb 9 11:56:24 2022 AnchalUpdateGeneralBringing back CDS[Anchal, Paco]

Bringing back CDS took a lot of
work yesterday. I'm gonna try to summarize
 Screenshot_2022-02-09_12-11-33.png 
  16657   Thu Feb 10 15:41:00 2022 AnchalUpdateGeneralScheduled power outage recovery - Locking mode cleaner(s)I found out that the ESP300 service needs
to be run in root mode for it to be able
to connect to the USB port of HWP motor controller.
  
  16658   Thu Feb 10 17:57:48 2022 AnchalUpdateGeneralScheduled power outage recovery - Locking mode cleaner(s)Something is wrong with the Video MUX.
The system did not turn back on with full
functionality. Even though we see the screens
 PXL_20220211_021509819.jpg 
  16664   Fri Feb 11 10:56:38 2022 AnchalUpdateCDS[Solved] Huge random numbers flowing into ETMX/ETMY ASC PIT/YAWYeah, this is a known issue actually. We
go to ASC screen and manually swich off all
the outputs after every reboot. We haven't
  
  16665   Fri Feb 11 11:17:00 2022 AnchalUpdateGeneralScheduled power outage recoveryI found that two computers are not powering
up in the control room, Ottavia and Allegra.
Allegra was important for us as it had the
  
  16667   Fri Feb 11 16:09:11 2022 AnchalUpdateGeneralScheduled power outage recovery - Input power increasedWe increased the input power to IMC by
replacing the 98% transmission BS by a 10%
transmission BS on the detection table (reverse
  
  16668   Fri Feb 11 17:07:19 2022 AnchalUpdateCDS[Solved] Huge random numbers flowing into ETMX/ETMY ASC PIT/YAWThe autoBurt file for FE already has the
C1:ASC-ETMX_PIT_SW2 (and other channels for
ETMY, ITMX, ITMY, BS and for YAW) present,
  
  16674   Wed Feb 16 15:19:41 2022 AnchalUpdateGeneralReconfigured MC reflection path for low powerI reconfigured the MC reflection path for
low power. This meant the following changes:


Replaced the 10% reflection
  
  16676   Wed Feb 23 15:08:57 2022 AnchalUpdateGeneralRemoved extra beamsplitter in MC WFS pathAs discussed in the meeting, I removed
the extra beam splitter that dumps most of
the beam going towards WFS photodiodes. 
  
  16677   Thu Feb 24 14:32:57 2022 AnchalUpdateGeneralMC RFPD DCMON channel got stuck to 0I found a peculiar issue today. The C1:IOO-MC_RFPD_DCMON
remains constantly 0. I wonder if the RFPF
output is being read properly. I opened the
  
  16679   Thu Feb 24 19:26:32 2022 AnchalUpdateGeneralIMC LockingI think I have aligned the cavity, including
MC1 such that we are seeing flashing of fundamental
mode and significant transmission sum value
  
  16697   Thu Mar 3 15:37:40 2022 AnchalSummaryCDSc1teststand restructuredc1teststand has been restructured. There
is no port computer called 'c1teststand'
anymore. When you ssh into the c1teststand
  
  16700   Fri Mar 4 11:04:34 2022 AnchalSummaryCDSc1susaux2 system setup and runningI took the c1teststand computer from teststand
and converted it into c1susaux2. To do so,
I installed a fresh copy of debian 10 on
 40mBHD_C1SUSAUX2_Acromag_Chassis.pdf 
  16712   Mon Mar 7 19:38:47 2022 AnchalSummaryCDSc1susaux2 slow controls issuesI tried to perform a simple enabling test
of coils using c1susaux2 modbus channels
but failed. I'm able to do the enabling
  
  16724   Mon Mar 14 12:20:05 2022 AnchalSummaryCDSc1susaux2 slow controls acromag chassis installed[Anchal, Yehonathan, Ian]

We installed c1susaux2 acromag
chassis in 1Y0 with c1susaux2 computer. We
 BHD_WatchDogs.png40mBHD_C1SUSAUX2_Acromag_Chassis.pdf 
  16726   Tue Mar 15 11:52:34 2022 AnchalSummaryCDSc1su2 model updated for sending Run/Acquire Binary Output to Binary Interface cardI routed the XXX_COIL_DW signals from the
7 SOS blocks in c1su2.mdl (located at /cvs/cds/rtcds/userapps/trunk/sus/c1/models/c1su2.mdl)
to the binary outputs from the FE model.
 c1su2.pdf 
  16728   Tue Mar 15 14:10:41 2022 AnchalSummaryCDSc1su2 model remade, reinstalled, restarted after the updateI have restarted c1su2 model with the connections
of Run Acquire switch to analog filters on
coil drivers. Following steps were taken:
  
  16729   Tue Mar 15 18:42:37 2022 AnchalSummaryBHDPart IX of BHR upgrade - AS1 resuspended and OSEMs tunedhttp://nodus.ligo.caltech.edu:8080/40m/16722

http://nodus.ligo.caltech.edu:8080/40m/16716
  
  16730   Tue Mar 15 18:45:12 2022 AnchalSummaryBHDPart X of BHR upgrade - BHDBS Path setup[Paco, Anchal]

BS Chamber work


ASL
was positioned in nominal place.
PR3
  
  16733   Thu Mar 17 17:23:22 2022 AnchalSummaryBHDPart IIa of BHR upgrade - Green laser alignment[Anchal, Yehonathan] (on Y Arm)

We first checked if the PZT mirrors
M1 and M2 can be controlled. They indeed
  
  16734   Thu Mar 17 19:12:44 2022 AnchalSummaryCDSc1auxey1 slow controls acromag chassis installed, not powered[Anchal, Tega]

We installed c1auxey1 computer
and the acromag chassis in 1Y4. The computer
  
  16737   Fri Mar 18 19:10:51 2022 AnchalSummaryCDSc1auxey1 slow controls issuesI started the modbusIOC service on c1auxey1
and added PD variance channels for UR and
SD as well.  There are unfortunately
  
  16738   Mon Mar 21 14:22:52 2022 AnchalUpdateSUSETMY Alignmnet offsets needed to be changedI'm not sure why but the PIT and YAW
offset values of +2725 and -2341 were not
sufficient for the reflected OPLEV beam to
  
  16740   Mon Mar 21 18:24:07 2022 AnchalSummaryBHDPart IIa of BHR upgrade - Green laser alignment on Yarm[Anchal, Tega]

We did the following alignment
steps on Yarm today:
  
  16741   Mon Mar 21 18:42:06 2022 AnchalSummaryCDSc1auxey1 slow controls issuesAnother issue, Green Y Shutter can not
be controlled with the EPICS controls right
now. This needs to be investigated.
  
  16742   Thu Mar 24 19:20:28 2022 AnchalSummaryBHDPart IIa of BHR upgrade - Green laser alignment on Yarm[Anchal, Paco]


Uneloged: yesterday, Paco
and Ian tried locking the green laser on
  
  16743   Fri Mar 25 11:39:14 2022 AnchalUpdateSUSETMY SUS Electronics Replacement - QuestionsAfter Ian updated the cts2um filters for
OSEM, shouldn't the damping gains be
increased back by factor of 10 to previos
  
  16744   Fri Mar 25 18:20:28 2022 AnchalSummaryBHDPart IIa of BHR upgrade - Green laser alignment on Yarm[Anchal, Paco, Shruti]


Today we found out that
the laser controller at the Yend had it's
  
  16756   Mon Apr 4 17:03:47 2022 AnchalSummaryCDSc1susaux2 slow controls acromag chassis fixed and installed[Anchal, JC, Ian, Paco]

We have now fixed all issues with
the PD mons of c1susaux2 chassis. The slow
 Screenshot_2022-04-04_17-03-26.png 
  16757   Tue Apr 5 18:15:06 2022 AnchalSummaryBHDPart IIa of BHR upgrade - IR laser alignment on Xarm[Paco, Anchal, Ian, JC]

We attempted the alignment of IR
beam into the arm cavities. We used PR2 and
  
  16759   Wed Apr 6 12:03:51 2022 AnchalSummaryBHDPart IIa of BHR upgrade - IR laser alignment on Yarm[Anchal, Paco]

After Koji reduced the output resistors
on PR2/PR3 coil drivers, we got much better
  
  16762   Thu Apr 7 17:59:51 2022 AnchalSummaryBHDPart IIa of BHR upgrade - IR laser alignment on Yarm[Anchal, Paco, JC, Tega]

Today we have aligned the Yarm
cavity for IR, with verified 1.5 roundtrips.
  
  16804   Fri Apr 22 12:09:51 2022 AnchalUpdateCoil DriversPlease update DCC pagesNice. Please put this information on the
DCC pages of the coil driver units. You'll
find links to all the units in this document
  
  16805   Fri Apr 22 12:15:08 2022 AnchalUpdateBHDCable post installationIf someone gets time, let's put in
all the cable posts and clean up our cable
routing on the tables.
  
  16810   Mon Apr 25 16:57:57 2022 AnchalUpdateBHDCable post installation[Anchal, Tega, JC]

We installed cable posts in ITMY,
BS, and ITMX chambers for all the new suspensions.
  
  16811   Mon Apr 25 17:24:06 2022 AnchalUpdateCDSDAQ still downI investigated this issue today. At first,
it seemed that only new suspension testpoints
are inaccessible. I was able to use diaggui
  
  16815   Wed Apr 27 16:28:57 2022 AnchalSummaryBHDBHD Upgrade - Retreiving arm cavity alignment[Anchal, Paco, JC]

We had to open ITMY, ETMY chamber
doors to get the cavity aligned again. Once
  
  16816   Thu Apr 28 09:12:18 2022 AnchalUpdateBHDRestoring arm alignmentThis would be a daily first task in the
morning. We'll need to check the status
of arm alignment and optimize it back to
  
  16817   Thu Apr 28 11:53:10 2022 AnchalSummaryBHDPOP_SM4 and POP_SM5 AssemblyPOP_SM4

I
tried out this stack today and found some
change of plans.
  
  16818   Thu Apr 28 17:45:53 2022 AnchalUpdateBHDPOX Beam issues[Anchal, Paco]

We investigated the low power issue
with POX11 photodiode.
 PXL_20220429_002703686.jpg 
  16819   Thu Apr 28 18:07:04 2022 AnchalUpdateBHDRestoring arm alignment at EODRestored arm algiment to get 0.8 max flashing
on YARM and 1 max flashing on XARM. I had
to move input alignment using TT2-PR3 pair
  
  16824   Mon May 2 17:51:30 2022 AnchalUpdateBHDPOX Beam aligned on RFPD, YARM locked[Paco, Anchal]

We found that one of the Y1-1037-45P
marked mirror that we used was actually curved.
  
  16826   Tue May 3 14:02:09 2022 AnchalSummaryBHDInstalled POP path in ITMX Chamber[Anchal, JC]

I installed POP_SM4 and POP_SM5
in the ITMX chamber in the nominal positions.
  
  16829   Wed May 4 13:09:42 2022 AnchalUpdateBHDIMC table balanced again, IMC is locking, YARM is locking[Paco, JC, Anchal]

We balanced the IMC table back
again to point that got us 50% of nominal
  
  16832   Thu May 5 14:46:22 2022 AnchalUpdateBHDPOP beam height lowered, POP_SM4 raised[Anchal, JC]

We first aligned the single arm
cavity resonance for both arms to get maximum
  
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