ligo-ex ligo-ds
  Richardson Lab Experimental Log, Page 9 of 10  Not logged in ELOG logo
ID Date Author Typedown Category Subject Text Attachments
  60   Mon Apr 3 17:04:05 2023 AidenSummaryGeneralIDP Scroll Pump AssemblyAiden installed the isolation valve and the
exhaust silencer kits on the IDP-3 Scroll
pump. The entire assembly still needs to
 IMG_4244.jpg 
  69   Wed Apr 12 10:53:02 2023 AidenSummaryGeneralValve CleaningBagged and Tagged the parts from batch 10
and placed them inside the clean room. 

Then
cleaned the last gate valve in liquinox for
  
  72   Mon Apr 17 17:06:49 2023 AidenSummaryGeneralClean and Bake batch 11Cleaned the Viton O-Ring for the main chamber
in Liquinox for 10 minutes. Then put it in
the oven to back for;

1. Ramp to 100 degC
 IMG_4262.jpg 
  77   Mon Apr 24 17:38:45 2023 AidenSummaryGeneralClean and Bake Batch 12Today I Bagged and tagged the o-rings from
batch 11 and placed them inside the clean
room. I also cleaned batch 12 parts in liquinox
 IMG_4269.jpgIMG_4268.jpg 
  80   Thu Apr 27 09:48:34 2023 AidenSummaryGeneralBatch 12 BaggingI took batch 12 out of the oven and put them
in a bag and placed the bag inside the clean
room in the first large stainless steel container.

I
 IMG_4279.jpgIMG_4278.jpg 
  86   Fri Apr 28 19:39:19 2023 CaoSummaryGeneralClean and Bake Leybold TTR 91 Pirani Gauge



  
  111   Wed May 31 16:18:41 2023 AidenSummaryGeneralMock FROSTIFinished assembly on the Mock FROSTI so it
is ready for the fit test at LIGO lab.
 IMG_4394.jpg 
  121   Tue Jun 13 13:25:05 2023 AidenSummaryClean & BakeClean and Bake Batch 13Cleaned and Baked the new 1.33" and 2.75"
blanks for the vacuum system. Cleaned them
with liquinox in the ultra sonic washer for
  
  148   Thu Jul 6 16:16:03 2023 AidenSummaryVACVacuum Chamber Baking Update
Pressure Measured Before Removing Gauge
2.31 E-7 Torr.


Went in and turned
on the heating tape in increments of 30 degC
  
  291   Mon Dec 11 16:20:17 2023 JonSummaryTCSFROSTI Assembly ProcedureBelow is the procedure we will follow to
assemble the FROSTI prototype.

Install SS guide rods and
  
  312   Wed Jan 31 14:37:26 2024 ShaneSummaryCDSpath directions for CyMAC model and parts libraryPath to cds parts library in Matlab simulink:
/usr/share/advligorts/src/src/epics/simLink.
File name CDS_PARTS.mdl
Path to user models:
  
  472   Thu Nov 14 10:46:20 2024 Luke SummaryCleanroomCleanroom cleaning 
[Luke, Luis, Michael]
cleaning cleanroom and particle count
 partical_count_final.png 
  23   Tue Feb 7 17:27:30 2023 AidenPhysicsELOGClean and Bake Batch #1Cleaned SS parts with liquinox for 20 min.
Then put in oven for 5 steps;
1. Ramp, 100
degC, 15 min
2. Const, 100 degC, 30 min
3.
  
  70   Wed Apr 12 16:13:19 2023 CaoPhysicsVACVacuum prep and installationAiden, Pamella, Peter, Shane, Cao 


Today
we started vacuum chamber assembly work


10:16 am: Particle count measurement of clean
 VacAssy230412.png 
  81   Thu Apr 27 16:23:44 2023 Cao, Pamella and JulianPhysicsVACInstalling vacuum system (cont.)
 
[Pamella, Cao and Julian, Shane]



 Particles account 

10:37 am: Starting the particles account
 IMG_0139.pngIMG_0136.png 
  82   Thu Apr 27 21:43:07 2023 JonPhysicsVACGrounding vacuum systemThis afternoon I made up a green 10 AWG
grounding cable and connected it to the vacuum
system.
 IMG_0141.pngIMG_0140.png 
  84   Fri Apr 28 18:16:57 2023 CaoPhysicsVACGrounding vacuum system



  
  85   Fri Apr 28 19:00:13 2023 CaoPhysicsVACTighten CF ports on vacuum chamber[Cao]

 
After Jon's comment yesterday
that some of the connection did not seem
to have good metal-metal contact, in particular
 TightenCF.png 
  87   Mon May 1 17:10:25 2023 Julian, CaoPhysicsVACInstalling Pirani gauge and RGA probe onto to vacuum chamber [Julian, Cao] 



 03:00 pm: Particle
count

:  Zone 3 

 PXL_20230501_225241491.jpgPXL_20230501_235854958.jpgPXL_20230501_234750795.MP.jpg 
  90   Tue May 2 17:03:14 2023 Jon, CaoPhysicsVACFirst pump-down test of vacuum chamber [Jon, Cao] 

  1. Re-routing of cables 
 PXL_20230502_203343616.jpgPXL_20230502_210234897.MP.jpg 
  91   Wed May 3 19:03:47 2023 Julian,Pamella and CaoPhysicsVACModify vacuum asssembly and install RGA[Pamella, Julian, Cao]

   Today we
started re-configuring the vacuum chamber
components. 

 Particle count
 vaccum_chamber_re-configuration.jpg 
  97   Fri May 12 20:28:34 2023 Aiden, CaoPhysicsVACVacuum chamber Helium leak test [Aiden, Cao] 

 
 1. Helium leak test 


2:00 pm: Uninstall regulator from nitrogen
 PXL_20230512_211717602.jpgArLeak_230512.png 
  7   Mon Jul 11 14:29:45 2022 JonOmnistructureGeneralHEPA filter installedToday I unpacked and installed the new HEPA
filter for the lab. It is an Omni CleanAir
OCA1210 capable of 1200 CFM. This flow rate
 IMG_1530.png 
  13   Wed Dec 14 17:35:41 2022 JonInfrastructureComputersWindows LaptopI set up the new Windows 10 laptop (pictured
below), which arrived yesterday. This laptop
is intended to be used for running lightweight
 laptop.png 
  24   Tue Feb 7 17:44:17 2023 JonInfrastructureComputersWorkstation 1 (ws1) set upThe Linux workstation (ws1) that used to sit
on the old workbench has been mounted on
the new electronics bench and is now ready
 ws1.jpg 
  26   Fri Feb 10 16:34:45 2023 Huy Tuong CaoInfrastructureClean & BakeNitrogen gas tank ready to useCao,


Today I fixed the final bit related
to the nitrogen gas tank, which is to apply
sealing tape to M-NPT connector of the hose
 AirGunSealed.jpg 
  39   Wed Mar 1 21:27:20 2023 JonInfrastructureCleanroomOver-table shelf height raisedJon, Cao

Today we raised the height of the
shelf overhanging the cleanroom laser table
 cleanroom-shelf.jpg 
  40   Wed Mar 1 21:50:46 2023 JonInfrastructureComputersWorkstation 2 (ws2) mounted on cleanroom cartThe Linux workstation (ws2) that used to
sit on the blue workbench (now inside the
cleanroom) has been mounted on a mobile cart,
 ws2_cart-1.jpegws2_cart-2.jpeg 
  44   Mon Mar 6 15:32:58 2023 JonInfrastructureGeneralCabinet installation completedJon, Cao, Peter
This morning Facilities delivered
and installed two new cabinets with sliding
 IMG_0088.jpgIMG_0089.jpg 
  53   Wed Mar 22 12:16:20 2023 JonInfrastructureCleanroomExperimenting with HEPA fan speedsJon, Cao
In effort to try to reduce the noise
level inside the cleanroom, we have dialed
  
  56   Fri Mar 24 07:14:38 2023 JonInfrastructureComputersWorkstation 2 (ws2) mounted on cleanroom cartThe ws2 cart has been thoroughly wiped down
with IPA wipes and moved inside the cleanroom.
I have reconnected it to power and Ethernet
  
  67   Tue Apr 11 13:15:40 2023 CaoInfrastructureClean & BakeNitrogen gas tank replacedThe nitrogen gas tank has been replaced with
a new unit. The new tank is ultra pure nitrogen
(>99.9% nitrogen).

The new tank has been
  
  94   Tue May 9 15:49:20 2023 JonInfrastructureVACPermanent cable routingToday I brought in a fresh supply of zip
ties (we now have 1500 in the tool chest)
and used them to permanentize the cable routing
  
  95   Tue May 9 20:55:12 2023 JonInfrastructureVACCalibrated Ar leak rateFor future reference, the calibrated Argon
source has a leak rate of 7.55E-8
atm cc/s, or equivalently 
 VTI-Calibrated-Ar-Leak.jpeg 
  98   Sun May 14 15:50:48 2023 CaoInfrastructureComputersHigh resolution display of logrus machine[Cao]

 
The display resolution of the
logrus has been 1064x768 and has been the
only option, which is not great. While remote
  
  122   Tue Jun 13 21:08:46 2023 PamellaInfrastructureVACHeater system - Installation[Pamella, Cao and Jon]


 Heating system
installation 

 Today we
started installing the equipments for the
 IMG_7563.jpegIMG_7561.jpeg 
  129   Tue Jun 20 22:14:24 2023 Pamella, CaoInfrastructureVACShort term testing of vacuum heater controller units[Pamella, Cao]

 
 Fuse replacement


 Replace blown 10A fuse
in ucontroller outside cleanroom 
  
  130   Wed Jun 21 20:25:05 2023 CaoInfrastructureVACVacuum chamber bake attempt 1 TL;DR: 
We are not yet able to
bake the chamber at 150 deg C due to some
current limit, most likely caused power supply
 6x 
  136   Tue Jun 27 21:47:56 2023 JonInfrastructureVACVacuum chamber bake attempt 1The electrical overload problem encountered
in ELOG 130
has been resolved. The two heater controllers,
 IMG_0256.pngIMG_0257.pngIMG_0254.png 
  137   Wed Jun 28 15:58:56 2023 Shane, CaoInfrastructureVACPower trip problem remains, source of smoke is insulation[Shane, Cao] 


With the new change
in wiring configuration described in elog
136,
 Pumpline_afterRemoveInsul.jpgRGAline_afterRemoeInsul.jpgMeltedInsulation1.jpgMeltedInsulation1.jpgMeltedInsulation2.jpg 
  138   Thu Jun 29 18:27:26 2023 Jon, CaoInfrastructureVACVacuum bake attempt 3: success![Jon, Cao]


 Summary : We resolved
problems with heaters tripping power and
were able to proceed with chamber baking
 NewInsulation.pngBypassLineInsulation.jpg 
  141   Mon Jul 3 14:32:24 2023 CaoInfrastructureVACCooling down vacuum chamber[Cao]

 
After leaving the the chamber
to bake at 120 deg C from Thursday 3:41 pm.
Today I started to cool the chamber down
  
  142   Mon Jul 3 16:26:21 2023 CaoInfrastructureDAQAccess and control Red Pitaya remotely and run it on local machine[Cao]


To access and control the Red
Pitaya using Python locally on a machine
within the local network, one should follow
  
  145   Wed Jul 5 15:46:47 2023 Aiden, CaoInfrastructureVACVacuum Chamber Baking Update
Cao and Aiden put the RGA back on to
the chamber and measured the outgassing rate
after the chamber has cooled down from its
 bake1_230705.png 
  198   Wed Aug 9 11:32:56 2023 JonInfrastructureGeneralNew power cablesI delivered new NEMA 5-15 (120V / 15 A)
power cables to the lab for the following
items:
 IMG_0299.jpg 
  294   Sun Dec 17 21:04:15 2023 JonInfrastructureClean & BakeClean and bake lab migrated to 1129[Jon, Tyler, Aiden, Luke]
On Friday we completed assembly of
the new stainless steel-topped benches in
 IMG_0781.pngIMG_0782.png 
  297   Wed Dec 20 10:33:34 2023 JonInfrastructureClean & BakeClean and bake lab migrated to 1129Update: I
have completed permanent routing of the electrical
cables. I also ran the ultrasonic washer's
  
  303   Mon Jan 15 22:29:34 2024 JonInfrastructureGeneralCabinet installation & lab clean-up completed[Jon, Tyler, Aiden, Shane, Pooyan, Michael,
Cynthia, Luke]
On Wednesday, we completed long list
 1129.png1119.png 
  330   Tue Feb 20 08:01:30 2024 JonInfrastructureGeneralPower and network equipment installed in 1129 rack[Jon, Tyler, Pooyan, Luis, Luke, Peter]
On
Thursday we installed the power conditioning/distribution
equipment and networking equipment in the
 IMG_0924.jpegIMG_0925.jpegIMG_0921.jpegIMG_0922.jpeg 
  339   Sat Feb 24 08:53:38 2024 JonInfrastructureComputersMatlab upgraded to 2023b on ChimayI upgraded Matlab on chimay to the latest
stable release, 2023b. From some quick tests,
it appears to be in working order. Let me
  
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