Copied from LLO (LLOalog69495), I've added this test to our DIAG_MAIN. I haven't tested by putting the CPSs into a bad state, but Jim and I will do this next week.

TITLE: 02/16 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Planned Engineering
INCOMING OPERATOR: None
SHIFT SUMMARY: Pumpdown efforts continue, SQZ table work created a local hazard in the East bay.
LOG:

The temperature of the chilled water loop at Mid Y was lowered from 46F to 42F to bring it more in line with the other buildings. Other than the initial pulldown, the effect will be minimal but will allow for a more consistent temperature trend. 

WP11699

Erik and I have been looking into the reason for sluggish guardian log access. We noitced that the machine hasn't been rebooted since Jan 31, 2023, so it was time to reboot and update anyway. Erik parsed through the ~150 package updates before applying them. He also looked at log file size before and after reboot, with basically no difference between the two. This reboot was also not a magic fix for the log access speed, so Erik will look further into understanding why the journalctl process is so slow and ways to speed it up.

All nodes came back up without issue, but there was an error in the LASER_PWR node. This was due to it not able to handle a request of 0W while in the INIT state. Fixed.

The following channels are still much noisier than I'd expect a temperature channel to be for both Ends.
H1:CAL-PCALX_RECEIVERMODULETEMPERATURE
H1:CAL-PCALX_TRANSMITTERMODULETEMPERATURE

I have collected a number of screenshots that include the framewriter0 with an increasing uptime that were also points where our temperatures experienced an increase in noise.

Previous FRS ticket: https://services1.ligo-la.caltech.edu/FRS/show_bug.cgi?id=10987

I'm putting this alog in to point at for another FRS ticket.

 

Thu Feb 15 10:10:24 2024 INFO: Fill completed in 10min 20secs

Gerardo confirmed a good fill curbside.

TITLE: 02/15 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Planned Engineering
OUTGOING OPERATOR: None
CURRENT ENVIRONMENT:
    SEI_ENV state: Maintenance
    Wind: 13mph Gusts, 10mph 5min avg
    Primary useism: 0.10 μm/s
    Secondary useism: 0.33 μm/s
QUICK SUMMARY: Corner volume pumping down, snow on site.

Today's activities:
- The HAM7 O-ring blanks have been torqued now, after their installation on the septum door
- The Annulus volume of HAM7 - after closing the doors - is being pumped. There was a leak at the septum plug - temporarily it is solved, the annulus pressure now is in the E-5s
- After all, HAM7 pumping has been started, it is already at ~3 Torr
- Corner pumpdown status: we are at ~5 Torr
- EX pumpdown status: 4.05E-8 Torr

TITLE: 02/15 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Planned Engineering
INCOMING OPERATOR: None
SHIFT SUMMARY:

Fire Dept cam and burnt all the Tumble weeds alog X arm.
Fire pump on 20:47 UTC alarm went off because the Fire trucks are being refilled.
HAM7 pump down was indeeed started
Camera SHG-Trans is now working again
Fire on Xarm is kinda still smoldering and Hanford FD is aware of this.

LOG:

Ibrahim A, Ryan S, Travis S, Betsy W

Context: LHO Welders have finished their training at University of Glasgow IGR and have begun the assessing the status of the LHO welding set-up both independently and in the scenario of welding in the staging building with a reaction chain.

Phase 1: Ryan S and I have conducted a thorough shakedown of all that is needed to begin welding in the staging building. Details on each piece of tooling are informally, but rigorously documented and have been uploaded to the DCC: T2400052-v1. Commentary on all existing documentation (SOPs, HAs, Procedures etc.) is also found there.

Here is a summary list of the tooling, fiber and laser equipment that was checked, transported, installed, documented (I've also included procedures and any pre-existing or updated documentation):

• Pulling/Welding Procedure: E1000366
• Length Alignment Cheat Sheet Laminate
• Fiber Weld SOP: M1000334
• L-brackets (for attaching bow to LSAT)
• Welder Beam Path Roof
• Bow
• Cutting jig
• Diamond scribes
• Diamond files
• Mass alignment
• Weld hub
• Electronics
• Laser(s)
• Alignment Mirrors
• Focusing Lens
• Articulating Arm 
• Weld Mirrors
• Vacuum
• Electronic Cabling
• Weld Shelves
• Fibers
• Proof Tester
• Laser Goggles
• Welder Doors
• Laser Face Shield (SHADE ONLY)
• LSAT Jack-Lift Combo (Cooler Name Needed) 
• Anti-Fog Wipes
• Chairs
• Birdcage
• Controller
• Keypad
• Sighting Scope (NEW!)
• Clock
• Lighting

Phase 2: Discuss improvements, brainstorm and/or improve the quality of the set-up. In the same document, below the shakedown is an improvement brainstorm in its infancy - expect this to overtake the document once all necessary tooling is fully documented and shaken down. Here is a summary of future improvement brainstorm and propositions:

• Thorough inventory of all essential welding equipment
  • Includes excel sheet with spares
  • Pictures for each of the above such that “last seen/status” can be applied between weld sessions - can be added to master excel sheet
• Color coding and/or kitting for all needed fasteners and wrenches per assembly/part so we don’t waste time
• Re-classing of all possible tools
• Improvement brainstorm document for the future
• After shakedown documentation is finished, we classify the weld setup into more general categories:
  • E.g. Fiber Tooling, Auxiliary Tooling and Laser Tooling, Weld Personnel Equipment etc.

We've already started on this first bullet via a more formal spreadsheet is being drafted, though still in early progress, with more specific fastener/assembly details. This is to overcome inneficiencies from searching for correct tooling that can be from different versions, metric/imperial, in different labs and spanning upwards of a decade of welding. Annotated pictures of each weld tooling assembly in its current form will be uploaded too.

The Rough Plan:

The plan right now is not only to practice welding at LIGO under site and scenario conditions, but to inherit this welding set-up in an intuitive and transferrable manner with documentation primarily focused on finding weld improvements and areas to consolidate/simplify parts of the set-up. Obviously no major changes will be made without excessive thought, documentation and collaboration. Through this documentation, we would also allow welding communication to be more streamlined between LHO, LLO, Glasgow and the new CIT weld set-up.

Dave, Richard, Filiberto, Tony, Daniel, Patrick


Added to puppet for h1digivideo3 and to MEDM. See attached images. I'm a little worried about the load on this machine, the IOC for this camera has started printing gstreamer queue overrun messages.

TITLE: 02/13 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Planned Engineering
INCOMING OPERATOR: None
SHIFT SUMMARY:

• Dave tried calling from EX phone but it didn't work
• PSL and LVEA Dust level alarms went on and off, expectedly following peak LVEA activity

LOG:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         

Naoki, Daniel, Nutsinee

We moved MR20 and MR21 two holes to the left to make room for the new 24 MHz EOM that will now be used to lock the SHG. We're 87% mode matched to the SHG. The higher order mode is dominated by the donut mode (mode mismatch).

Also attached a function generator settings for the Thorlabs PZT driver so we don't have to figure this out next time.

Hanford fire department are refilling their trucks with hydrant water as part of the tumbleweed buring operation. The FMCS alarm for fire pump 1 running was sent to cell phones. I have bypyass this alarm for now.

This is a nice test of the new FMCS software detecting fire pump running status.

Updated T2400046 Googledoc. No leaks, flowmeters look good.

There 3 places where the pipes are not in their nominal 2x2 configuration: (A) before the drop down the the LVEA floor, (B) under the beamtube, (C) under HAM4. The pipes are also drooping in the longer stretch in the mechanical room. TJ is ordering more clic32 clamps that we plan to better support the pipes with. Also noticed a seemly unused metal bracket under BSC3, will check with SEI before removing. 

New FRS prompted by FRS 30283, plan to complete bi-annually by the TCS team.

FAMIS 20015

PMC reflected power has come up and RefCav transmitted power has dropped again; we'll certainly do a PMC/RefCav alignment in the coming weeks to prep for commissioning work.

The purpose of this investigation is to find out whether or not the SQZ TEC servos needs to be switched off during venting (and then possibly to update M1300464).

Attached are pictures of sections in which all servos were switched off and once where all were on during venting.

The area between -19.5d and -15.5d from t0=Sun Sep 25 2022 13:13:15 UTC was selected for all servos are off and -11.5d to +1.5d from t0= Fri Jan 26 2024 20:34:02 UTC for all servos are on.

Picture structure

The images are named as follows:

• All servos on during venting and shows the temperatures: all_on_temperature
• All servos off during venting and shows the temperatures: all_off_ temperature
• All servos on during venting and shows the temperatures and zoomed into an interesting area: all_on_temperature_zoom
• (the same for readback)

The pictures are structured as followed:

Result

Temperature does not change during venting, which means from this point of view it does not need to be switched off.

Whereas the readback senses venting. Most have only minimal changes in voltage of max 0.2V but a few have larger changes:

Sina, Elenna, Kevin, Evan

Similar to Anamaria's measurements at Livingston last year (LLO:58623), we drove PR3 sinusoidally in pitch and yaw at low frequency to try to ascertain the amount of beam spot motion coupling into the arms. The following times are all 2023–04–12 UTC:

• 17:10:00 to 17:16:00 — quiet time
• 17:19:45 to 17:29:45 — PR3 pitch, 0.34 Hz, ~0.02 µrad
• 17:32:00 to 17:38:00 — PR3 pitch, 0.34 Hz, ~0.04 µrad
• 17:39:46 to 17:45:00 — PR3 yaw, 0.34 Hz, ~0.02 µrad
• 17:49:00 to 17:55:00 — PR3 yaw, 0.11 Hz, ~0.02 µrad
• 17:55:30 to 18:01:30 — PR3 pitch, 0.11 Hz, ~0.04 µrad