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New entries since:Wed Dec 31 16:00:00 1969
ID Date Author Type Category Subject Text Attachments
  16721   Thu Mar 10 09:39:59 2022 JordanUpdateVACLeak Testing of New Manual Gate Valve - Attempt #2This morning Chub and I leak checked the
manual gate valve with the RGA and helium.
There was no change in the helium partial
 3-09-2022.PNG3-10-2022.PNG 
  16719   Wed Mar 9 12:57:52 2022 KojiUpdateBHDSimplified BHD readout sketch on ITMY table- BHD beams were already mixed in the chamber.
So we don't need a BS on the table. (Probably
there is no BS already)
  
  16718   Wed Mar 9 11:52:18 2022 YehonathanUpdateBHDSimplified BHD readout sketch on ITMY tableI have made an editable
draw.io diagram of the planned simplified
BHD setup on the ITMY table (see attached). 
 ITMY_Table_Sketch.drawio.pdf 
  16717   Wed Mar 9 10:23:28 2022 JordanUpdateVACLeak Testing of New Manual Gate Valve - Attempt #1Jordan, Chub, Paco

Chub and I went into the lab this
morning to leak check the new gate valve
  
  16716   Wed Mar 9 09:35:26 2022 PacoUpdateBHDRe-balance of AS1[Paco]

AS1 is installed, OSEMs balanced,
and the optic damped successfully. We should
  
  16715   Tue Mar 8 19:29:36 2022 PacoUpdateBHDRe-balance of AS1[Paco]

Installed AS1 in vacuum, near the
center of the table, and installed the OSEMs.
  
  16714   Tue Mar 8 12:24:13 2022 YehonathanUpdateBHDRe-susspension of AS1The gluing seemed to be successful. I assembled
the side block with the magnet on the adapter.
Paco helped me hang the adapter on the SOS
 AS1_Roll_Balance.pngAS1_Height_Balance.pngFreeSwingingSpectra_new.pdf 
  16713   Tue Mar 8 12:08:47 2022 TegaUpdateVACOngoing work to get the FRG gauges readouts to EPICs channelsOMG, it worked! It was indeed a calibration
issue and all I had to do was press the "OK"
button after selecting the "CAL"
 XGS600_calibration.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
  
  16711   Mon Mar 7 18:53:16 2022 KojiUpdateBHDRe-susspension of AS1Not sure if that small difference can cause
the alignment inability. Particularly, the
removed metal was just below the wire. This
  
  16710   Mon Mar 7 16:56:08 2022 YehonathanUpdateBHDRe-susspension of AS1{Paco, Yehonathan}

We tried to roughly balance the
adapter with two counterweights at the front,
 signal-2022-03-07-171520_001.pngsignal-2022-03-07-172659_001.jpegsignal-2022-03-07-172659_003.jpeg 
  16709   Mon Mar 7 16:44:15 2022 Ian MacMillanUpdateSUSETMY SUS Electronics ReplacementNow that the ETMSUS is back up and running
I reran my measurements from the beginning
of the process. The results below show
 6x 
  16708   Mon Mar 7 14:55:33 2022 KojiUpdateIOOIMC unlocked again, completely misalignedHmm, the bias values were reset at 2022-03-03-20:01UTC
which is 2022-03-03-12:01 PST with no apparent
disruption of the data acquisition (= no
  
  16707   Mon Mar 7 14:52:34 2022 KojiUpdateVACOngoing work to get the FRG gauges readouts to EPICs channelsGreat trouble shoot!

> I guess, the only remaining
issue now is the incorrect atmospheric
  
  16706   Mon Mar 7 13:53:40 2022 TegaUpdateVACOngoing work to get the FRG gauges readouts to EPICs channelsSo it appears that my deduction from
the pictures of needing a cable swap was
correct, however, it turns out that the installed
 iolan_xgs_comm_live.pdf 
  16705   Mon Mar 7 10:06:32 2022 YehonathanUpdateIOOIMC unlocked again, completely misalignedCame this morning and saw that the IMC
is unlocked.

Went into MC Lock screen and see
 Screenshot_2022-03-07_10-15-19.png 
  16704   Sun Mar 6 18:14:45 2022 TegaUpdateVACOngoing work to get the FRG gauges readouts to EPICs channelsFollowing repeated failure to establish
communication between c1vac and the XGS600
controller via Perle IOLAN serial device
 iolan_xgs_comm_investigation.pdf 
  16703   Sat Mar 5 02:03:46 2022 KojiUpdateSUSETMY 1Y4 Electronics ReplacementOplev saga

Summary 

- The new coil driver had not enough
 6x 
  16702   Sat Mar 5 01:58:49 2022 KojiSummaryCDSpaola rescueETMY end ThinkPad "paola" could
not reboot due to "Fan Error".
It seems that it is the failure of the CPU
 PXL_20220305_035255834.jpgPXL_20220305_034649120.MP.jpg 
  16701   Fri Mar 4 18:12:44 2022 KojiUpdateVACRGA pumping down1. Jordan reported that the newly installed
Pirani gauge for P2 shows 850Torr while PTP2
show 680 Torr. Because of this, the vacuum
 Screenshot_2022-03-04_19-38-11.png 
  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 
  16699   Thu Mar 3 17:21:11 2022 Ian MacMillanUpdateSUSETMY 1Y4 Electronics Replacement[Koji, Ian]

1) We attached the 30 coil driving
cables to the vacuum feed through to the
  
  16698   Thu Mar 3 17:09:46 2022 PacoUpdateBHDRe-susspension of AS1[Anchal, Paco]

Wire clamp spare was installed,
furthermore AS1 was reinstalled on adapter,
  
  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
  
  16696   Thu Mar 3 04:24:23 2022 KojiUpdateSUSETMY 1Y4 Electronics ReplacementThe DC power strip at Y-end was connected
to the bottom two Sorensen power supplies.
They are configured to provide +/-18V.
 PXL_20220303_094421604.jpgPXL_20220303_094435127.jpg 
  16695   Thu Mar 3 04:11:36 2022 KojiUpdateSUSETMY 1Y4 Electronics ReplacementFor the Y-end electronics replacement,
we want to remove unused power supplies.
In fact, we already removed the +/-5V supplies
 PXL_20220303_082726693.jpgPXL_20220303_082752494.jpgPXL_20220303_082744464.jpg 
  16694   Wed Mar 2 14:02:43 2022 YehonathanUpdateBHDRe-susspension of AS1Yesterday, I rebuilt the OpLev setup in
the cleanroom in order to suspend AS1. It
took me a while to find all the necessary
  
  16693   Wed Mar 2 12:40:08 2022 TegaUpdateVACOngoing work to get the FRG gauges readouts to EPICs channelsConnector Test:

A quick test to rule out any issue
with the Ethernet to Serial adapter was done
 6x 
  16692   Wed Mar 2 11:50:39 2022 TegaUpdateVACOngoing work to get the FRG gauges readouts to EPICs channelsHere is the IOLAN SDS TCP socket setting
and the USBserial setting for comparison.

I have also included the python
 XGS600_IOLAN_settings_1.pngXGS600_IOLAN_settings_2.pngXGS600_USBserial_settings.pngXGS600_comm_test.pyXGS600_comm_test_result.txt 
  16691   Tue Mar 1 20:38:49 2022 TegaUpdateVACOngoing work to get the FRG gauges readouts to EPICs channelsDuring my investigation, I inadvertently
overwrote the serial port configuration for
the connected devices. So I am now working
 Working_Serial_Port_List_1.pngWorking_Serial_Port_List_2.pngWorking_Config_Ports#1-5.pngWorking_Config_Ports#7-8.png 
  16690   Tue Mar 1 19:26:24 2022 KojiUpdateSUSETMY SUS Electronics ReplacementThe replacement key switches and Ne Indicators
came in. They were replaced and work fine
now.
 PXL_20220302_025723651.jpgPXL_20220302_030102033.MP.jpg 
  16689   Tue Mar 1 16:01:14 2022 PacoUpdateElectronicsRFSoC 2x2 board -- setup for remote work & BALUN saga[Tommy, Paco]

Since last week I've worked
with tommy on getting the RFSoC 2x2 board
 balun_adc1.pngPXL_20220302_001734121.jpg 
  16688   Mon Feb 28 19:15:10 2022 TegaUpdateVACOngoing work to get the FRG gauges readouts to EPICs channelsI decided to create an independent service
for the XGS data readout so we can get this
to work first before trying to integrate
  
  16687   Mon Feb 28 15:51:07 2022 Ian MacMillanUpdateSUSETMY 1Y4 Electronics Replacement[Paco, Ian]

paco helped me wire the ETMY 1Y4
rack. We wired the following (copied from
 IMG_0865.jpgIMG_0867.jpgIMG_0868.jpgIMG_0866.jpg 
  16686   Sun Feb 27 01:12:46 2022 KojiUpdateGeneralIMC manual alignment procedureWe expect that the MC sus are susceptible
to the temperature change and the alignment
drifts away with time.
 PXL_20220226_100859871.jpg 
  16685   Sun Feb 27 00:37:00 2022 KojiUpdateGeneralIMC Locking RecoverySummary:

- IMC was locked.
- Some alignment change in the output
 PXL_20220226_093809056.jpgPXL_20220226_093854857.jpgPXL_20220226_100859871.jpgScreenshot_2022-02-26_01-56-31.pngScreenshot_2022-02-26_01-56-47.png 
  16684   Sat Feb 26 23:48:14 2022 KojiUpdateSUSETMY SUS Electronics Replacement[Ian, Koji] - Activity
on 25th (Fri)

We continued working on
 PXL_20220226_023111179_2.jpg 
  16683   Sat Feb 26 15:45:14 2022 TegaUpdateVACOngoing work to get the FRG gauges readouts to EPICs channelsI have attached a flow diagram of my understanding
of how the gauges are connected to the network.

Earlier today, I connected the
 Vac-gauges-flow-diagram.png 
  16682   Sat Feb 26 01:01:40 2022 TegaUpdateVACOngoing work to get the FRG gauges readouts to EPICs channelsI will make a detailed elog later today
giving a detailed outline of the connection from
the Agilent gauge controller to the vacuum
  
  16681   Fri Feb 25 14:48:53 2022 Ian MacMillanUpdateSUSETMY SUS Electronics ReplacementI moved the network-enabled power strip
from above the power supplies on rack 1y4
to below. Nothing was powered through the
 Before.jpgAfter.jpg 
  16680   Fri Feb 25 14:00:08 2022 Ian MacMillanUpdateSUSETMY SUS Electronics Replacement[Koji, Ian]

We looked at a few power supplies
and we found one that was marked "CHECK
 IMG_0853.jpgIMG_0852.jpg 
  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
  
  16678   Thu Feb 24 18:05:58 2022 YehonathanUpdateBHDRe-susspension of AS1{Yehonathan, Anchal, Paco}

Yesterday, Anchal and Paco removed
AS1 from the vacuum chamber and moved it
 signal-2022-02-24-173933_003.jpegsignal-2022-02-24-173933_002.jpeg 
  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
  
  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. 
  
  16675   Tue Feb 22 18:47:51 2022 Ian MacMillanUpdateSUSETMY SUS Electronics Replacement[Ian, Koji]

In preparation for the replacement
of the suspension electronics that control
 ALL_TF_Graph.pdf20220222_SUSElectronicsReplacement.7z 
  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
  
  16673   Tue Feb 15 19:40:02 2022 KojiUpdateGeneralIMC lockingIMC
is locking now. There was
nothing wrong: just a careful alignment +
  
  16672   Tue Feb 15 19:32:50 2022 KojiUpdateGeneralScheduled power outage recovery - IMC recovery progressReduced the IMC power to 100mW

Setup: The power
meter was placed right before the final aperture
 PXL_20220216_001731377.jpgScreen_Shot_2022-02-15_at_16.18.16.pngPXL_20220216_001727465.jpgScreen_Shot_2022-02-15_at_16.22.16.pngPXL_20220216_002229572.jpg 
  16671   Mon Feb 14 21:03:25 2022 KojiUpdateGeneralScheduled power outage recoveryI opened the boxes. Allegra has obvious
vent of at least 4 caps. And the power supply
did not respond even a paper clip test was
 PXL_20220215_025325118.jpg 
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