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  Richardson Lab Experimental Log, Page 1 of 14  Not logged in ELOG logo
ID Date Author Type Category Subject Text Attachments
  688   Thu Feb 26 20:25:10 2026 Cynthia LiangUpdateInterferometer SimulationsPoint Absorber+Miscentering Simulation   update_2_18_Merged.pdf 
  687   Thu Feb 19 12:59:47 2026 TylerUpdateTCSA# FROSTI Profiles 01/15/26
Slides
covering a new approach to optimizing for
A# FROSTI profiles. In particular, we start
  
  686   Thu Feb 19 12:34:18 2026 CynthiaUpdateInterferometer SimulationsPoint absorber simulation   update_2_18.pdf 
  685   Thu Feb 12 13:50:38 2026 Xuesi MaUpdateVACVacuum status warning systemVacuum Pressure Warning Script

Script
Location: controls@chimay
Script Path: /vac/python/serial/temp_vacuum_warning.py
  
  684   Thu Feb 12 12:59:29 2026 MaryUpdate     SB_scattering.pdf 
  683   Thu Feb 12 12:53:51 2026 Cece OchoaUpdateELOGCE Cavity Design UpdateUpdate on HOM placement w/ cavity locking.
Still verifying mode placement

RoC: 28340m
and 26874m
 2_12_short_update.pdf 
  682   Thu Feb 12 12:25:38 2026 Xuesi MaInfrastructureGeneralLab floor plans [Cece, Ma, Mary, Pooyan, Tyler, Paul]

 We have continued the reorganization
 8x 
  681   Thu Feb 5 13:59:42 2026 MaryUpdateInterferometer Simulations    112.pdf 
  680   Thu Feb 5 13:49:31 2026 MichaelUpdateInterferometer SimulationsUpdating Squeezing Mode Matching LogicAfter some tests, I have determined that the
squeezer in the aLIGO katscript is currently
being matched to the SRC. This logic will
 screenshot2.pngscreenshot1.png 
  679   Thu Feb 5 13:34:13 2026 Cynthia UpdateInterferometer SimulationsPoint absorber + miscentering simulation    update2_5_(3).pdf 
  678   Thu Feb 5 13:12:28 2026 TylerUpdateTCSA# FROSTI Profiles 01/15/26 Slides
updating progress on FROSTI A# irradiance
profiles and reflector design. Edge roll-off
  
  676   Thu Feb 5 11:42:47 2026 JonInfrastructureGeneralLab floor plans [Audrey, Cece, Jon, Ma, Mary, Michael,
Pooyan, Tyler, Shane] 
 We have completed the preliminary
 image.jpgimage_1.jpgimage_3.jpg 
  675   Thu Jan 29 12:46:22 2026 Cece OchoaUpdate CE Cavity Design Update (4)Update for CE Cavity Arms + Modes 


https://docs.google.com/presentation/d/1-dXYylkAbNpHR4WVCx9Q8ryL_xGlH-JSSLXEUQg6b7Q/edit?usp=sharing
 
  
  674   Wed Jan 28 11:29:30 2026 TylerUpdateTCSA# FROSTI Profiles 01/15/26



  
  673   Thu Jan 22 14:06:00 2026 Xuesi MaUpdateTCSFROSTI A# Reflector Update Slides   
  672   Thu Jan 22 13:18:12 2026 PooyanInfrastructureGeneralLab floor plansThe working document of tasks regarding
moving the clean room is attached. Needs
LIGO account to access and edit. 
  
  671   Thu Jan 22 13:12:29 2026 MaryUpdate     PA_matem2.pdfPA_maxtem6.pdfmaxtem600.jpgmaxtem2dis.jpgdismaxtem6.jpg 
  670   Thu Jan 22 10:10:31 2026 JonInfrastructureGeneralLab floor plansAttached are the starting and final floor
plans for the February 2026 expansion into
the Physics 1125 lab.
 Pre-Feb-2026.pngPost-Feb-2026.png 
  669   Thu Jan 15 13:52:55 2026 Xuesi MaUpdateTCSFROSTI A# Reflector UpdateSlides   
  668   Thu Jan 15 12:52:58 2026 TylerUpdateTCSA# FROSTI Profiles 01/15/26Slides   
  667   Thu Jan 8 12:51:03 2026 TylerUpdateTCSFROSTI A# Update 01/08/2026Slides   
  666   Thu Dec 18 12:51:13 2025 TylerUpdateTCSFROSTI A# Profiles UpdateSlides   
  665   Thu Dec 4 12:10:19 2025 TylerUpdateTCSFROSTI A# Profiles and Element Width OptimizationSlides   
  664   Thu Nov 20 13:54:34 2025 TylerUpdateTCSFROSTI A# Optimization and Mesh Convergence AnalysisAttached below are slides discussing FROSTI
A# Irradiance optimization and mesh convergence
analysis for penetration depth.
 Updates_11_19_2025-3.pdf 
  663   Thu Nov 20 13:03:58 2025 Cece OchoaUpdateELOGCE Cavity Design UpdateUpdate on grouping 0+8th Order Modes  11_20_update.pdf 
  662   Thu Nov 20 12:40:47 2025 Xuesi MaInfrastructureGeneralRoom 1125 Optical TableCleaned off the tapes on the optical table
with acetone. 
 1651.jpg1650.jpg 
  660   Thu Nov 13 12:39:01 2025 MaryUpdateInterferometer Simulations    PA.pdf 
  659   Thu Nov 6 12:39:43 2025 Cece OchoaUpdateELOGCE Cavity Design UpdateUpdated mode placements and ROC. No thermal
effects added yet.
 base_0_6_plot.pdfbase_0_7_plot.pdf 
  658   Thu Oct 30 11:45:44 2025 LiuUpdateInterferometer SimulationsMulti-ring FROSTI optimization for A#Multi-ring FROSTI optimization for A#: dimensionality
reduction with PCA vs. t-SNE
 Update.pdf 
  Draft   Thu Oct 23 11:34:05 2025 MichaelUpdateInterferometer SimulationsUpdated Exploration into Different SRC Mirror Configurations for Improved Squeezing   Update_Slides_10_23_25.pdfUpdate_Slides_10_30_25.pdf 
  656   Thu Oct 23 11:09:16 2025 Xuesi MaUpdateMeasuring Noise in InterferometerScatter Noise ModelDetChar meeting presentation   
  655   Thu Oct 23 10:07:51 2025 LiuUpdateInterferometer SimulationsMulti-ring FROSTI optimization for A#4D parameter space visualization and dimensionality
reduction for better optimization
 loss_embedding.htmlUpdate.pdf 
  654   Thu Oct 16 10:31:20 2025 LiuUpdateInterferometer SimulationsMulti-ring FROSTI optimization for A#Two-ring FROSTI grid search with 4D parameter
space search and visualization
 interactive_plot_dropdown.htmlUpdate.pdf 
  653   Fri Oct 10 14:40:23 2025 Xuesi MaUpdateVACPressure gauge Swap[Tyler, Ma]

We suspect a pressure gauge problem.
The electronic unit of the main chamber pressure
 6x 
  652   Thu Oct 9 12:18:14 2025 LiuUpdateInterferometer SimulationsMulti-ring FROSTI optimization for A#   Update.pdf 
  651   Wed Oct 8 14:45:12 2025 Xuesi MaInfrastructureVACRGA Chamber PressureRGA Chamber pressure is currently at 3.68e-4
torr.
 20251008_130141.jpg 
  650   Tue Sep 30 12:51:23 2025 TylerUpdateTCSO6 RH Update 09/30/2025Slides   
  649   Tue Sep 30 12:26:15 2025 LiuUpdateInterferometer SimulationsFROSTI optimization for A#   Update.pdf 
  648   Tue Sep 23 13:10:07 2025 TylerUpdateTCSRH O6 Update 09/23/25Slides   
  647   Tue Sep 23 12:39:29 2025 LiuUpdateInterferometer SimulationsMulti-ring FROSTI optimization for A#   Update.pdf 
  646   Tue Sep 16 12:47:29 2025 Xuesi MaUpdateInterferometer SimulationsFrosti actuation impact analysisSlides   
  645   Tue Sep 16 12:18:09 2025 LiuUpdateInterferometer SimulationsGrid search optimization for single-ring FROSTIGrid search optimization for single-ring FROSTI  Update.pdf 
  644   Tue Sep 9 13:08:44 2025 Xuesi MaUpdate  Slides   
  643   Tue Sep 9 12:13:38 2025 LiuUpdateInterferometer SimulationsMulti-ring FROSTI optimization for A# with grid searchMulti-ring FROSTI optimization based on IFO
metrics for A# with grid search
 Update.pdf 
  642   Tue Sep 9 12:06:38 2025 TylerUpdateTCSRH O6 UpdateSlides   
  641   Tue Sep 9 12:01:38 2025 Tyler, MaUpdate  Slides   
  640   Tue Sep 2 18:33:38 2025 LiuInfrastructureGeneralNew lab room 1125 layout and measurementAction items for facilities
 

Ceiling lights replacement
Fume
 1125.pdf 
  639   Tue Sep 2 12:41:33 2025 LiuUpdateInterferometer SimulationsMulti-ring FROSTI design for A# with ring heater optimization[Tyler, Liu]

Ring heater optimization,
continued
 Update.pdf 
  638   Tue Sep 2 12:34:02 2025 Xuesi MaUpdate Updata for self heating effect on HOMhttps://docs.google.com/presentation/d/19I1fx5BLEzYb4Qnc9P4rJnYAvWI8NqE2dsj9gSPyYzg/edit?usp=sharing   
  637   Tue Sep 2 11:53:34 2025 TylerUpdateTCSRIN Infrastructure Update (09/02/2025)[Ma, Tyler]


Below are slides discussing
RIN infrastructural updates related to the
CyMAC.
  
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