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New entries since:Wed Dec 31 16:00:00 1969
ID Date Author Typedown Category Subject Text Attachments
  15164   Tue Jan 28 15:39:04 2020 gautamConfigurationComputersSluggish megatron?There were a bunch of medm processes stalled
on megatron (connected with screenshot taking).
To see if they were interfering with the
  
  15167   Tue Jan 28 17:36:45 2020 gautamConfigurationComputersLocal EPICS7.0 installed on megatron[Jon, gautam]

We found that the caput
  
  15168   Tue Jan 28 19:12:30 2020 JonConfigurationPSLSpare channels added to c1psl chassisAfter some discussion with Gautam, I decided
to build more spare channels into the new
c1psl machine. This is anticipation of adding
 c1psl_feedthrough_wiring_v2.pdf 
  15421   Mon Jun 22 10:43:25 2020 JonConfigurationVACVac maintenance at 11 amThe vac system is going down at 11 am today
for planned maintenance:


Re-install the repaired
  
  15424   Mon Jun 22 20:06:06 2020 JonConfigurationVACVac maintenance completeThis work is finally complete. The dry
pump replacement was finished quickly but
the controls updates required some substantial
 Pumpdown-6-22-20.png 
  15425   Tue Jun 23 17:54:56 2020 ranaConfigurationVACVac maintenance completeI propose we go for all CAPS for all channel
names. The lower case names is just a holdover
from Steve/Alan from the 90's. All other
  
  15446   Wed Jul 1 18:03:04 2020 JonConfigurationVACUPS replacements​I looked into how the new UPS devices
suggested by Chub would communicate with
the vac interlocks. There are several possible
  
  15465   Thu Jul 9 18:00:35 2020 JonConfigurationVACUPS replacementsChub has placed the order for two new UPS
units (115V for TP2/3 and a 220V version
for TP1).
  
  15510   Sat Aug 8 07:36:52 2020 Sanika KhadkikarConfigurationCalibration-RepairBS Seismometer - Multi-channel calibrationSummary : 

I have been working on analyzing
 BS_X-EY_X.pngBS_Y-EY_Y.pngBS_Z-EY_Z.pngtimeseries.png 
  15526   Fri Aug 14 10:10:56 2020 JonConfigurationVACVacuum repairs todayThe vac system is going down now for planned
repairs [ELOG
15499]. It will likely take most
  
  15527   Sat Aug 15 02:02:13 2020 JonConfigurationVACVacuum repairs todayVacuum work is completed. The TP2 and TP3
interlocks have been overhauled as proposed
in ELOG
  
  15528   Sat Aug 15 15:12:22 2020 JonConfigurationVACOverhaul of small turbo pump interlocksSummary

Yesterday I completed
the switchover of small turbo pump interlocks
as proposed in ELOG
 small_tp_signal_routing.pngsmall_tp_interlock_signal.pngsmall_tp_signal_routing.pngmedm_screen.png 
  15738   Fri Dec 18 22:59:12 2020 JonConfigurationCDSUpdated CDS upgrade planAttached is the layout for the "intermediate"
CDS upgrade option, as was discussed on Wednesday.
Under this plan:
 CDS_2020_Dec.pdfCDS_2020_Dec.graffle 
  15742   Mon Dec 21 09:28:50 2020 JamieConfigurationCDSUpdated CDS upgrade plan


Quote:


  
  15746   Wed Dec 23 23:06:45 2020 gautamConfigurationCDSUpdated CDS upgrade plan
The diagram should clearly show
the host machines and the expansion chassis
and the interconnects between them.
We
  
  15771   Tue Jan 19 14:05:25 2021 JonConfigurationCDSUpdated CDS upgrade planI've produced updated diagrams of the
CDS layout, taking the comments in 15476 into
 40m_CDS_Network_-_Planned.pdf40m_CDS_Network_-_Current.pdf 
  15772   Tue Jan 19 15:43:24 2021 gautamConfigurationCDSUpdated CDS upgrade planNot sure if 1Y1 can accommodate both c1sus2
and c1bhd as well as the various electronics
chassis that will have to be installed. There
  
  15921   Mon Mar 15 20:40:01 2021 ranaConfigurationComputersinstalled QTgrace on donatella for dataviewerI installed QTgrace using yum on donatella. Both Grace and  cutiegrace.png 
  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.
  
  16027   Wed Apr 14 13:16:20 2021 AnchalConfigurationComputers40m Control Room Changes
I have confirmed that the old two
monitors' backlighting is not working.
One can see the impression of the display
  
  16163   Wed May 26 11:45:57 2021 Anchal, PacoConfigurationIMCMC2 analog camera[Anchal, Paco]

We went near the MC2 area and opened
the lid to inspect the GigE and analog video
  
  16302   Thu Aug 26 10:30:14 2021 JamieConfigurationCDSfront end time synchronization fixed?I've been looking at why the front
end NTP time synchronization did not seem
to be working.  I think it might not
  
  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
  
  16874   Wed May 25 16:56:44 2022 PacoConfigurationBHDIFO recovery - IMC alignment[Yuta, Paco]

We aligned IMC to recover the IFO
progressively. First step was to center the
  
  16875   Wed May 25 17:34:47 2022 yutaConfigurationBHDIFO recovery - IFO alignmentIFO aligned to maximize flashings, except
for GRY and LO-AS.
 Screenshot_2022-05-25_17-47-57.png 
  16877   Thu May 26 19:55:43 2022 yutaConfigurationBHDOplevs centered, BHD DCPDs are now online[Paco, Yuta]

We have aligned the IFO (except
for LO-AS and GRY), and centered
 elog_1Y2.JPGelog_BHD.JPGelog_box.JPGScreenshot_2022-05-26_17-37-27_IFOaligned_OplevCentered.pngScreenshot_2022-05-26_20-35-02.png 
  16880   Fri May 27 17:45:53 2022 yutaConfigurationBHDBHD camera installed, GRY aligned[JC, Paco, Yuta]

After the IFO recovery (elog 40m/16881),
  
  16886   Thu Jun 2 20:05:37 2022 yutaConfigurationPSLIMC input power recovered to 1W, some alignment works[Paco, Yuta]

We have
 Before.JPGAfter.JPG 
  16887   Fri Jun 3 12:13:58 2022 PacoConfigurationCDSFix RFM channels [Paco, Yuta]

We tried fixing the issue of LSC_TRY
and LSC_TRX channels not working. We first
 SoGreen.png 
  16893   Mon Jun 6 16:09:23 2022 ranaConfigurationDetCharSummary Pages: seis BLRMSI updated the config file c1pem.ini in
/users/public_html/detcharsummary/ConfigFiles,
and commited it so I hope it works, but I
  
  16924   Thu Jun 16 18:23:15 2022 PacoConfigurationBHDRecovering LO beam in BHD DCPDs[Paco, Yuta]

We recovered the LO beam on the
BHD port. To do this, we first tried reverting
 Screenshot_2022-06-16_18-29-14_BHDLObeamISBACK.png 
  16932   Tue Jun 21 14:17:50 2022 yutaConfigurationBHDBHD DCPDs re-routed to c1sus2After discussing with Anchal, we decided
to route BHD related PD signals directly
to ADC of c1sus2, which handles our new suspensions
 C1X07ADC1.JPGBHDDCPDs.JPG 
  17018   Tue Jul 19 16:00:34 2022 yutaConfigurationBHDFast channels for BHD DCPDs now available in c1lsc but not in c1hpc[Paco, Anchal-remote-support, Yuta]

We added fast channels to BHD DC
PDs.
 Screenshot_2022-07-19_14-26-39_c1hpc.pngScreenshot_2022-07-19_14-24-49_c1lsc.pngScreenshot_2022-07-19_15-51-25_GreenGreen.png 
  17025   Thu Jul 21 21:50:47 2022 TegaConfigurationBHDc1sus2 IPC updateIPC
issue still unresolved.

Updated shared memory tag so that
  
  17026   Fri Jul 22 15:05:26 2022 TegaConfigurationBHDc1sus2 shared memory and ADC fix[Tega, Yuta]

We were able to fix the shared
memory issue by updating the receiver model
 Screenshot_2022-07-22_15-04-33_DCPD.pngScreenshot_2022-07-22_15-12-19_models.pngScreenshot_2022-07-22_15-15-11_ERR.pngScreenshot_2022-07-22_15-32-19_GDS.png 
  17028   Fri Jul 22 17:46:10 2022 yutaConfigurationBHDc1sus2 watchdog update and DCPD ERR channels[Tega, Yuta]

We have added C1:HPC-DCPD_A_ERR and
 Screenshot_2022-07-22_17-48-25.png 
  17033   Mon Jul 25 17:58:10 2022 TegaConfigurationBHDc1sus2 IPC dolphin issue updateFrom the 40m
wiki, I was able to use the instructions
here
 Screen_Shot_2022-07-25_at_5.43.28_PM.pngScreen_Shot_2022-07-25_at_5.21.10_PM.pngScreen_Shot_2022-07-25_at_5.30.58_PM.pngScreen_Shot_2022-07-25_at_5.35.19_PM.png 
  17034   Mon Jul 25 18:09:41 2022 TegaConfigurationBHDBHD Homodyne Phase control MEDM screen[Paco, Tega, Yuta]

Today, we made a custom MEDM screen
for the BHD Homodyne Phase Control, which
 Screen_Shot_2022-07-25_at_6.12.08_PM.pngScreen_Shot_2022-07-25_at_6.18.09_PM.png 
  17052   Mon Aug 1 18:42:39 2022 TegaConfigurationBHDc1sus2 IPC dolphin issue update[Yuta, Tega]

We decided to give the dolphin
debugging another go. Firstly, we noticed
 c1sus2_dolphin.pngfb1_dxamin_status.pngdolphin_num_mem_init2.png 
  17054   Tue Aug 2 17:25:18 2022 TegaConfigurationBHDc1sus2 dolphin IPC issue solved[Yuta, Tega, Chris]

We did
 c1lsc_IPC_status.pngFE_lsmod_dependencies_c1sus2_b4_after_iop_unpdate.png 
  17126   Thu Sep 1 09:00:02 2022 JCConfigurationDaily ProgressLocked both arms and aligned Op LevsEach morning now, I am going to try to
align both arms and lock. Along with that,
sometime at towards the end of each week,
 Daily.pdfDaily.pdf 
  17135   Thu Sep 8 11:54:37 2022 JCConfigurationLab OrganizationLab OrganizationThe arms in the 40m laboratory have now
been sectioned off. Each arm has been divided
up into 15 sections. Along the Y arm, the
 1A7026BC-82A9-49E9-BA22-1A700DFEC5D2.jpeg2A904809-82F0-40C0-B907-B48C3A0E789E.jpegCB4B8591-B769-454D-9A16-EE9176004099.jpeg 
  17136   Thu Sep 8 12:01:02 2022 JCConfigurationLab OrganizationLab OrganizationThe floor cable cover has been changed
out for a new one. This is in Section X11.
 F41AD1DA-29E9-4449-99CB-5F43AE527CA6_1_105_c.jpegFF5F2CE8-85E8-4B6F-8F8A-9045D978F670.jpeg 
  17209   Tue Oct 25 09:57:34 2022 PacoConfigurationPEMAuto Z on trillium interface boardI pressed the Auto-Z(ero) button for ~
3 seconds at ~9:55 local (pacific) time on
the trillium interface on 1X5.
  
  17210   Tue Oct 25 13:55:37 2022 KojiConfigurationPEMAuto Z on trillium interface boardThis nicely brought the sensing signal
back to ~zero. See attachment


Some basic info:
 Screen_Shot_2022-10-25_at_13.56.46.png 
  17213   Tue Oct 25 22:01:53 2022 ranaConfigurationPEMAuto Z on trillium interface boardthanks, this seems to have recentered well.

It looks like it started to act
funny at 0400 UTC on 10/24, so thats 9 PM
 Screen_Shot_2022-10-26_at_4.45.30_PM.png 
  17264   Mon Nov 14 14:52:56 2022 PacoConfigurationSUSBHD SUS Coil output balance[JC, Paco]

We installed a steering mirror
intersecting the BHD beam path and put the
 PXL_20221114_224829547~2.jpgScreenshot_2022-11-14_16-07-26_AS1CoilBalancing.pngScreenshot_2022-11-14_16-23-17_AS4CoilBalancing.pngScreenshot_2022-11-14_16-38-16_LO1CoilBalancing.pngScreenshot_2022-11-14_16-54-14_LO2CoilBalancing.png 
  17269   Tue Nov 15 17:58:00 2022 PacoConfigurationCamerasPOP camera realignment after IFO alignment[Paco, Yuta]

I swapped the 1 inch BS and lenses
along the POP beam to clear the apertures
 Screenshot_2022-11-15_16-22-26_AlignedBothArmLocked.pngPXL_20221115_215851553.jpgPXL_20221115_233429500.jpg 
  17275   Thu Nov 17 07:39:01 2022 JCConfigurationCamerasITMX CameraComing in this morning, I found ITMX Camera
malfunctioning.
  
  17278   Thu Nov 17 12:24:48 2022 PacoConfigurationCamerasITMX Camera -- attempt at fixI found that an old BNC cable for ITMXF
video existed so I first tried swapping both
ends of the cable, one on the ITMX viewport
  
ELOG V3.1.3-