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New entries since:Wed Dec 31 16:00:00 1969
ID Date Author Typeup Category Subject Text Attachments
  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
  
  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 
  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 
  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 
  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 
  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 
  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
  
  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 
  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 
  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 
  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 
  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 
  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
  
  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 
  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 
  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,
  
  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
  
  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 
  16703   Sat Mar 5 02:03:46 2022 KojiUpdateSUSETMY 1Y4 Electronics ReplacementOplev saga

Summary 

- The new coil driver had not enough
 6x 
  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 
  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 
  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 
  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
  
  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
  
  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 
  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 
  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
  
  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 
  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 
  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.
  
  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
  
  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
  
  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 
  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)
  
  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 
  16722   Thu Mar 10 10:05:49 2022 PacoUpdateSUSAS1 free swing test[Paco, Ian]


Begin free swinging test
for AS1 at 10:05 AM, set for ~ 2.04 hours.

Test
 SUS_Input_Matrix_Diagonalization.pdf 
  16723   Fri Mar 11 16:43:03 2022 Ian MacMillanUpdateSUSETMY SUS Electronics ReplacementI updated the gain of the ct2um filter
on the OSEMS for ETMY and decreased their
gain by a factor of 9 from 0.36 to 0.04.
  
  16725   Tue Mar 15 10:45:31 2022 PacoUpdateGeneralAssembled small in-vac optics[Paco]

This morning I assembled LO3,
LO4 and AS3 (all
  
  16731   Thu Mar 17 11:40:41 2022 PacoUpdateSUSETMY green PZT HV supply[Anchal, Paco]

We installed a HV kepco power supply
for the green PZT steering the YAUX beam.
  
  16732   Thu Mar 17 16:50:53 2022 PacoUpdateBHDXARM AUX alignment[Ian, Paco]

We opened the ITMX chamber and


Inspected PR2 and LO1 and
  
  16735   Fri Mar 18 17:15:19 2022 PacoUpdateBHDXARM AUX alignment cont.[Paco, Ian]

First, we re-balanced the ITMX
OSEMs so that they would damp at around half-a-shadow.
 Screen_Shot_2022-03-18_at_4.09.38_PM.png 
  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
  
  16739   Mon Mar 21 18:00:05 2022 Ian MacMillanUpdateBHDXARM AUX alignment cont.[Ian, Paco]

Continuing with the previous alignment
that we stoped on friday, we re set up my
 PXL_20220322_015247138.jpg 
  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
  
  16746   Mon Mar 28 16:25:34 2022 Ian MacMillanUpdateSUSETMY SUS Electronics Replacement - QuestionsThe point of changing the gains was to
return the system to its origional state.
ie I wanted the over all gain of the physical
  
  16748   Tue Mar 29 17:35:54 2022 PacoUpdateSUSDamping fix on BS, AS4, PR2, and PR3[Ian, Paco]


We removed the "cheby"
filters from AS4, PR2 and PR3 which had been
  
  16751   Fri Apr 1 14:26:50 2022 TegaUpdateOptical LeversSimplified sketch on MC tableHere is an early sketch
of the MC table. 

 
 MC_Table.drawio.pdf 
  16752   Fri Apr 1 17:02:02 2022 KojiUpdateOptical LeversSimplified sketch on MC tableWe are supposed to have BS Oplev Beams.
We don't like the shallow angle reflections
(i.e. AOI>45deg).
  
  16753   Fri Apr 1 22:22:29 2022 KojiUpdateOptical LeversSimplified sketch on MC tablePossibility to swap BS and ITMX
tables:
BS table, which Tega said MC table,
  
  16755   Mon Apr 4 15:49:06 2022 TegaUpdateOptical LeversSimplified sketch on BS tableI have updated the BS table using feedback
from Koji and Paco and the attached
pdf document is the latest iteration.
 BS_Table.drawio.pdf 
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