More cabling continued on the underside of the ISI table.  Travis and I added the TMS bracket-to-feed thru cables, so there are now ~7 cables that are ready to be handed off to SEI for dressing up the ISI stack.  We still have a few more to add, such as the broken (and repaired) ESD DXXX1617 cable and 2 more D100225-199".

We also prepped the UIM wire segments in prep for mating the lower M0 to the upper structure, and refit most of the lower face EQ stops with the newly designed version.

To facilitate the IAS measurements this afternoon, I unclamped the ITMy and then barely pushed the lower line stops back up to just-touching the ITMy barrel.  I also pushed the top PUM barrel stops in to just-touching.  I left the ITMy SUS in this state in hopes that these stops would provide a bit of friction during any HEPI moves subsequent to today's measurements (although Hugh assures me that the motion felt by the ITMy will be very slow and smooth).  The reaction chain and FMy are still clamped.

Other small items not yet in the log:
Greg and I pulled the manifold barrier down which was left from the cleaning crew.  It was blocking the IAS view of ITMy.  We set it in the tube propped up against the side, but leaving a clear shot for IAS to the ITMy.  AOS is considering using the barrier when bringing in baffle hardware later this week.

Also, the last of my in-chamber FMy cables looks to have been restored to it's bracket and mating connector (after an end-to-end flip was made in order to mate to the feed-thru).  So, I suppose the FMy chassis can be powered up as well.

(Corey, Ed, Mark, Slim Jim)

Today we removed components from the HAM3 Optical Table (Recycling Mirror, Telescope, Beam Dumps, and weights).  We also did preparations for iLIGO stack removal tomorrow. 

The Telescope was removed and not kept clean (it is on the floor in the south bay).  There is no distiguishing serial number on this assembly other than part numbers for individual parts. 

The Recycling Mirror (RM) was kept semi-clean, and is on a table in the Optics Lab with several other iLIGO Suspensions.  This mirror is designated as:  RM03-B.

The forklift with a short "surfboard" was used to pull the Telescope and RM from the HAM3.  This work took roughly 4hrs.

Photos of HAM3 work from today and tomorrow will be posted in Resource Space at this location:

https://ligoimages.mit.edu/?c=897

J. Oberling, D. Cook

First set of alignment numbers for the ITMy were taken today; we measured horizontal, vertical, and longitudinal positions.  Positions are relative to the desired optic position and directions are given when facing the front of the optic.

• Horizontal: 1.6mm to the right (South)
  • Spec is ±1mm, needs to be translated to the left (North)
• Vertical: 0.3mm too high
  • Spec is ±1mm, this is well within
• Longitudinal: 2.4mm too short (West)
  • Spec is ±3mm, this is within

The horizontal translation will be done tomorrow morning via a HEPI static adjustment.

The H1 Input Mode Cleaner Tube(iLIGO) was removed and set outside today. No paint was scratched in the process.  HAM3 optical components were removed and preparations made for wrapping the stack for future use. Alignment is underway at BSC8 and the ITM.

Completed cabling of SEI and SUS field cables to BSC8. Ran cables from H2 Test Racks along Y-arm to BSC8. Moved Sat. Rack into beergarden. As of now, SUS coil drivers for QUAD are powered on. Units for PUM, UIM, FMY and ISI coil drivers units are powered down.

F. Clara, R. McCarthy, J. Garner

I removed old preference files from the controls user account for Ubuntu workstations.  The regenerated preferences have restored the window focus behavior that allows windows to pop to the front when links to them are clicked.  This affects matlab and medm applications in particular.  This will now make it much easier to work with applications that have large windows that hide other windows.

The air-bake oven in the LSB optics lab has had a new controller installed. The controller is capable of handling ramp and soak functions. Large changes to the oven (opening or closing the flue, etc.) will now need the autotune process after the change has been made if an accurate temperature ramping is desired. More info can be found here: Omega Manual. The controller can run a program with 30 setpoints to ramp and soak at different rates and hold times.

Attached is a graph of a ramp up from 40 to 70 degrees in 30 minutes that was run as a test. I will attach a more detailed report to this when it is finished, but if anyone would like to use that oven I will be more than happy to give a run down on how to set it up. This controller really suffers from a Blinking 12 problem.

Also attached is the modified wiring schematic that represents what is now in use for the oven. As you can see the controller will stay on even with the power switch off. This is how I intended it to be, the fan and heater will be de-energized by the switch still.

With most of the cabling completed we got the Dial Indicators in place and followed that with suspending the HEPI from the double start counter wound Springs.  Of course that means everything is floating--SEI Crossbeams (external blue), Support Tubes (in-vacuum), SEI-ISI & Suspensions.

***  Do not disturb the Blue Crossbeams  ***  Ah heck--DON"T TOUCH ANYTHING, please!


EricA, MitchellR, RichM & Hugh

The first phase of network switch changes is complete for the coming migration of the iLIGO legacy systems to aLIGO.  Note that there will be short data gaps (1-2 min) from this afternoon in the VE and FMCS data when the connections between switches were moved.

A soluation may be either checkboxes for relevant interferometers (as was done in the iLog), or list all the subsystems under the "Task" menu when the LHO "Section" is chosen.

This would be useful for classifying tasks such as:

- A subsystem purchases a tool, e.g. romer arm pr camera, for use throughout a site.

- Pcal calibrates a power meter that will be used for all interferometers.

- A seismic event happens that affects all interferometers.

- IAS working in BSC8, installing corner cube
- Richard and SEI pulling cables
- SLC hoping for Wednesday installation
- Kyle looking for missing ConFlat flanges
- H1 PSL contractor coming Tuesday to lay down linoleum
- HAM1,2,3 - removing optics from HAM3
- Hanford Fire Department on site for testing

See LLO aLOG 2140 for details, but please svn up any local copies of the SusSVN, specifically the ${SusSVN}/sus/trunk/BSFM/ corner of the tree.

The RH installed on the quad for BSC6 had an encounter with the fiber pulling laser, and has a couple burn spots.  I checked the resistance of the RH cabling at connector J9 today, and all wires check out OK, except the RTDs which we knew were broken.

Table of resistances is attached.

The communication to the dust monitors was lost for an extended period yesterday (Thursday Dec. 15, 2011) due to an accidental cutting of a network fiber to the LVEA.

The dust monitor at location 3 in the LVEA was moved into the clean room over BSC8 last night to replace the one previously there. It now has location 15 in the LVEA.

Attached are plots of dust counts > .5 microns.

(Corey, Mark, Randy, Zach)

With yesterday being devoted to clearing out an already-congested LVEA South Bay (& releasing load on Scissors Table Spring Cups), we started bright and early today on extracting iLIGO hardware from HAM1 [this was all done with only the West door off].

The MMT3 was slid out via the teflon highway, and we slid it onto a mini-surfboard mounted on the forklift.  (This SUS Assembly is now in the Optics Lab)

After this, we removed everything above the Support Table for this Seismic Isolation Stack (i.e. Optics Table, Masses, Springs, etc.).  Minus the Springs, we were asked to wrap & bag all the hardware (this generally doubles the time of the work).  The Optics Tables and Masses are currently wrapped and bagged and in the area near the racks. 

Notes:

• Did not remove cabling in the Chamber (since I didn't have a clean wrench).
• West Door reinstalled; another Apollo team loosened bolts on the MC Tube flange adjacent to HAM1 as we were finishing up; the East door has many bolts removed.
• Photos from work are located here.
• Spring Cups have been relieved on HAM3 & possibly HAM4 (thanks to Greg & Scotty)

The logbook is going down in 4 minutes for maintenance.

More images to follow (we'll get an entry at ResourceSpace), but for now, some images from Betsy and myself of the Friday cartridge work.