Build custom bridge between work platform and e-module-Done
Install custom bridge-Done
Work on cleanroom curtains: "doorway" at bridge-Done
Install central curtains on garbing/staging cleanroom-Done
Clean chamber and cleanroom X 2- 1 done
Install leg jacks-Done
Test leg jacks
Move cleanroom from HAM aux optics table to BSC2-HAM3 for garbing/staging
Check cleanroom function
Stage garbing/staging cleanrooms
Baffle assembly (Clean test stand-solid stack to test stand ~28 Feb-work tables moved in-clean cleanroom and contents prior to assembly start-1 done)

Installed reworked one-stop cards in I/O chassis for h1seih45, h1sush56, and h1susauxh56.  Ran timing fiber for h1seih45's I/O chassis, connected timing fibers for h1sush56, h1susauxh56.  

Powered up I/O chassis, made sure timing sync'd up, then powered up computers.

All three computers show the I/O chassis' cards.  Dolphin network is currently unplugged from h1seih45 and h1sush56.

NOTE: no AI/AA chassis or binary cables are connected to the I/O chassis.

Since I removed the Dial Indicators yesterday I thought it would reasonable to document the numbers. I recorded the DIs before removing. I compare them to the last time I recorded them on 29 January after the HEPI Actuator Attachment. IAS followed shortly and Jason logged that the ITMy was within tolerance.

The dial indicator numbers suggest at worst a coherent rotation of about 180urads CW and a very slight tilt down(4mils) on the NE (+X,-Y) corner.  If this yaw is true, we are still in spec as Jason logged we were CCW 70urads.  However, the HEPI IPS which have been on line since Feb1 would suggest much less motion.  These suggest an up motion of <1mil all corners and incoherent horizontal moves of <1mil.  I would venture that the DIs have just not managed the duration without some disturbance.  So at worse we are still in spec and at best we haven't moved at all.

The SEI electronics wiring diagrams were recently updated.

Models were modified to reflect those changes on our Units:
HAM2-ISI
HAM3-ISI
HAM1-HEPI
HAM2-HEPI
HAM3-HEPI

Models were recompiled and wiring was checked. IPS readouts match values recorded prior to re-wiring. Turning sensor's interface chassis on/off is reflected on the correct channels. Actuation was checked on HAM3-ISI, confirming the DAC number for HAM2-ISI (only 2 DACs on HAM23 IO chassis).

Damping loops, and level 2 Isolation loops were closed, on HAM3-ISI. We used the latest blend filters created during the IMC test. Controls were not tested after the vent. The current stability of these controllers confirms both the new wiring/models and the robustness of the control loops, in Air.

Hence, these control loops will be used to help IO locking the mode cleaner during the upcoming weeks.

Moved the STS cable one AA chassis up for both HAM2-ISI and HAM3-ISI, in order to be consistent with latest wiring diagrams, and their associated models.

I replaced the broken fitting on the diode chiller today but it would not start due to a low flow error. The flow will reach a max of 2 lpm before shutting off after a few seconds. I short circuited the flow to the chiller and got the same error, so the issue is with the chiller itself. We'll likely need the spare chiller from the H2 room, but will have to flush it out as there is some algae in the water tank.

- Deepak, Kyohei, Travis, Cheryl

More dog clamp swaps and installation of components.  Some components were moved to allow new hardware installation in HAM2 .

Highlights of work completed:
- PRM AR Baffle installed
- PRM EQ Stop Baffle installed
- MC3 EQ Stop Baffle dog clamps swapped
- dog clamp mess in front of IM1 cleared up, though one baffle now has dog clamps only on one side, which is not ideal, so maybe some small changes still to come there
- dog clamp serial numbers and types collected

Still to do:
- modify IM4 baffle - didn't fit today, but slop in washers used as spacers may allow a fix
- FI rejected beam dump needs to be assembled and installed
- a few dog clamps to work on, less than 5
- OpLev optic still to install on North side of the table
- move one baffle, which requires climbing into the chamber on the South side
- pictures of the changes
- check alignment of every component!  Components moved without an alignment beam, so minor adjustments may be needed on multiple components.

The SE corner has now been swapped back to iLIGO SEI.  More to go tomorrow.

Bumping the DIs really don't matter at this time as they aren't logging anything.  Still try to not bang into them anymore than needed for their well being.

Found the leak I was looking for; it was lurking SE of HAM4.  The Apollo welder was fortunately available and repaired it early afternoon.  All the Valves have been opened again and the pressure brought back up to 125psi.  Will report tomorrow on how it is doing.

Build custom bridge between work platform and e-module
Install central curtains on garbing/staging cleanroom
Move cleanroom from HAM aux optics table to BSC2-HAM3 for garbing/staging
Work on cleanroom curtains: "doorway" at bridge?
Clean chamber and cleanroom X 2
Check cleanroom function
Stage garbing/staging cleanrooms
Baffle assembly (Clean test stand-solid stack to test stand ~28 Feb-work tables moved in-clean cleanroom and contents prior to assembly start)

FTIRs taken. Permanent BSC flooring installed. Doors returned to chamber.
Cleanroom placed over dome late yesterday afternoon. Dome and cleanroom cleaned today. Dome will be cleaned and returned to chamber tomorrow.

We accidentally glitched the Dolphin network in the MSR this morning while investigation a model which is running long. We had to restart almost all the models on Dolphin connected front end computers. The reason for the glitch is known and we can avoid it in the future.

Set of spectra have been taken after the installation and the cabling of PRM in HAM2 chamber.

The allhltss*** plots show a comparison between LLO phase 3a (Oct 2012) LHO phase 2b (Feb 2013) and LHO Phase 3a (Feb 2013) power spectra
The 2013-02-26*** plots show a comparison between damping on and off for M1 M2 and M3 masses.

Everything looks good, nothing to worry about.

Set of spectra have been taken after the installation and the cabling of PR3 in HAM2 chamber.

Plots show that all osems have been plugged and are working correctly.

The allhltss*** plots show a comparison between LLO phase 3b (Sept 2012) LHO phase 2b (Feb 2013) and LHO Phase 3a (Feb 2013) power spectra
The 2013-02-26*** plots show a comparison between damping on and off for M1 M2 and M3 masses.

Looking at allhltss_2013-02-26_Phase3a_PR3_ALL_Spectra_Doff.pdf a 2.7Hz resonnance -corresponding to one of the main resonnances of M1 Yaw- shows up for M1 L/T/V/R/P (respectively pages 7/8/9/10/11). Probably, one of the earthquake stops is touching or rubbing.

 

Everything normal with the X-end MTP and QDP80 pumps -> Don't know why they shut down yesterday -> Valved in MTP to X-end and resuming pumping.

Attached are plots of dust counts > .3 microns and > .5 microns in particles per cubic foot requested from 5 PM Feb. 25 to 5 PM Feb 26. Also attached are plots of the modes to show when they were running/acquiring data. The end stations are not plotted because they were rebooted and stored nan in the data.

Data was taken from h1nds0.
3060 seconds worth of data was unavailable on this server
1360.0 minutes of trend displayed

'No data output' reported for the mode and status plots.

Attached are plots of dust counts > .3 microns and > .5 microns in particles per cubic foot requested from 5 PM Feb. 24 to 5 PM Feb 25. Also attached are plots of the modes to show when they were running/acquiring data.

Data was taken from h1nds1.
1440.0 minutes of trend displayed

WP 3731, 3727

We upgraded H1 from RCG 2.6.1 to 2.6.2. We took the opportunity to build the H1.ipc file from scratch to clean out unused IPC channels. All models were rebuilt and restarted. In order to install new mbuf drivers we rebooted all front ends as well as restarted their models many times over the course of the day. Errors found in the restart/reboot scripts were fixed. The DAQ was restarted several times in the late afternoon when we upgraded the original h1dc0 to have two gigabit ethernet receiver cards (making it the same as the h1dc1 test system which we installed on Saturday). The new h1dc1 is powered down and acting as a backup concentrator machine.

Alex upgraded h1fw0 and h1nds0 to be the same as the h1fw1 system (upgraded Sat 23 feb). This includes new frame-cpp and framed channel status string.

New code was installed on h1seih23 to conform with the wiring drawings. An adc timing problem was seen, so that system is not running at the moment, we'll take a look tomorrow morning.

IPC problems with h1sustmsy were discovered, the SUS and SEI teams have resolved that issue.

The PSL models would not compile due to recent common parts changes, for the moment we reverted back to older versions of the common parts which are consistent with our H1 models. We'll hand this over to team-PSL to upgrade their system at  later time.

We tested "front end restarts not invalidating other front ends data" (fixed by giving each front end its own mx stream end point), and could not reproduced this error.

We tested pressing the "DAQ Reload" button on a variety of front ends and could not reproduce model crashing or front end lock outs which were seen before 2.6.2.

We discovered a left-over EPICS 40 char name limit in or 3.14.10-epics-long state notation compiler, this was extended to 60 chars.

In summary: all front ends are now running 2.6.2, the original h1dc0 data concentrator is running with the extra 10gigabit ethernet port, front ends have their own end-point for mx stream daq data transfer.