Updated the dataviewer and command line nds tools on the DTS to test changes to read unsigned int values.

Got a couple sections, 5 to 800Hz Friday evening before Matt grabbed it Saturday morning.  Yes the number of averages was too many.  Matt relocked te ISI and Sunday night the .01 to 5hz was collected.  See attached for the concatenated sections.   They look identical to the In-Vacuum TFs run a year ago.  I'll attach those too for anyone interested.

TFs completed.  Relocked ISI; float/locked position comfortably within spec.

ISI left Locked.

Upon unlocking HAM4 there was a shift of just a few 100 counts vertically.  Relocked to confirm lock position--still good.  No balance mass adjustments required.

ISI left locked.

Upon unlocking the ISI, there was a 1200,-4100,2800 count vertical shift in the CPSs; spec is <1600.  Relocked to confirm and yes, we have a out of spec unlock position.

Just a little weight shift to correct this, a few tenths of a pound, I don't think the total mass changed by more than a 0.1lbs.

ISI left locked.

LASER is on
Frontend output power is 36.2 W, HPO output power is 29.9 W
Watchdog is green
'LRA out of range' error is active [OUT OF SPEC]

PMC:
Locked for 1 day 19 hours
Reflected power is 19.5% of transmitted power (should be 10% or less) [OUT OF SPEC]

FSS:
Locked for 1 day 19 hours
Trans PD threshold is .4 V, should be at least .9 V [OUT OF SPEC]

ISS:
Diffracted power is ~ 9% (should be ~10%)
Last saturation event was 1 day 19 hours ago

HAM2: Apply first contact, check cables into ISS array
HAM5: Check seismic, clean chamber, pull first contact, run spectrum, close doors
ITMY: Reaction chain alignment
BSC3: Check issues with first contact
end X: PCAL alignment
end Y: Installation of hardware for illuminators, laser noise eater

Install doors on HAM4 and HAM5

model restarts logged for Sun 20/Jul/2014
2014_07_20 11:00 h1odcx
2014_07_20 11:05 h1odcx
2014_07_20 11:10 h1odcx
2014_07_20 11:12 h1odcy

no unexpected restarts

These were not running when I came in. I burtrestored both to 07/18/2014 09:00.

Matt, Rich

All picomotors in HAM2 have been retrofitted with Kapton washers to prevent the motor from sticking upon full insertion of the screw thread.  The process of installing the Kapton washers in HAM2 was made far easier when Matt had the good idea to cut the washers (now known as the Heintze Cut) such that they can be put on one-handed (See attached photo).  Essentially, what started as a simple washer shape ends up more like a Greek capital omega.  After that bit of cleverness, it is now possible to actually put the washers on all the picomotors in HAM2.  All washers should be so cut from now on.

While in HAM2, I had a chance to see the ISS array cabling.  Given the constraints, what has been done is about as good as can be done.  A decent cable strain relief has been implemented.  Unfortunately, as the PSL folks well know, there is really not much holding the connectors in place.  Just prior to closing this chamber, it's essential to gently verify the connectors are fully seated as I found two that were not fully engaged.  Matt mentioned how the halogen flood lights can be used to illuminate the array such that it's possible to see the 120Hz detected by each PD; this should also be done prior to final closing.  It's suboptimal, but it's what we have.

I got a Moth reminder today when I had two fly over my shoulder and into HAM2 whilst I was working on MC3 (covers barely down 5 minutes) this afternoon. I got them out after only a little bit of time inside, but just a reminder to everyone...including myself...to try to not leave covers down when you are not working in chamber.

Kate G, Rich A, Calum T, Matt H

Again another big thankyou to Kate, Calum and Rich for coming in for another marathon session today (which is still going I am just getting a jump on the alog). Much appreciated you all coming in on both days of the weekend to do this and help me

Things for the most part went really well today. Today we:

• finished locking MC1. Rich watched the magnets on the back as I gently pushed the optic back using the front stops until the optic hit the back stops (because back stops locked in place). I then locked barrel EQ stops and removed the front EQ stops on the optic. MC1 now ready for FC
• Took front EQ stops off PRM and MC3 optic. Both now ready for FCing
• Installed Kapton washers on pico motors in HAM 2 (Rich will write a bit more on this). All Kapton washers now installed on pico motors in HAM2 and 3
• Inspection occurred on ISS array cabling/strain relief (Rich will write a bit more on this).
• SR3 was finished being first contacted and the baffle in front of SR3 put back in place
• SR3 was released for Arnaud to take TF's overnight if he wants
• SR2 was first contacted, Face EQ stops put back in place and TCS mirror put back in place
• Beamsplitter optic finished having its FC applied.

I think thats most of it. Doesnt sound like much but was a full day

So HAM4 and HAM5 should still be on schedule to get all doors on tomorrow (if I can have Apollo guys for doors, SEI guys to check balance (and unlock ISI at the end), Arnaud to do quick TF's for me and Jeff B to put wafer in for me, and someone to help me wipe down in HAMs 4 and 5 I should be able to get unlocked and all doors on in short order), . Here is what I believe are the steps to go:

HAM5 (should do first I think)

• Double check ISI balance quickly
• Lock SR3
• Quick last wipe down
• Peel FC on SR3
• Peel FC on small monitor optic on SRM
• Unlock SRM
• As unlocking SR3, install wafer
• Quick pitch TF on each suspension to see if have unlocked correctly
• Quick last check for tools, etc
• Unlock ISI
• Doors on

HAM4

• Double check ISI balance quickly
• Chamber clean (hasnt been wiped down yet, and this is why think HAM5 should go first)
• Install wafer
• Peel FC on SR2
• Peel FC on monitor optic on SR2
• Unlock SR2
• Quick pitch TF to see if have unlocked suspension correctly
• Quick last check for tools, etc
• Unlock ISI
• Doors on

Additionally I believe Kate/Calum et. al. tomorrow are going to try to finish off the FC on BSC3 (painting the outer "crust" and then move onto starting the 4 triples in HAM2 have to do FC to.

Note: The HAM AUXs ARE NOT locked in HAM2 and I dont plan on locking them at this stage for the work that needs to go on in there. So though the main optics are locked pleas go a little eay in HAM2 if you find yourself workin gin there

K. Ryan, J. Worden, R.Weiss
The attached document describes the preparations of the ionizer for the discharge of ETMY and
possible hypotheses why the charge is so large on the test masses. The document is also on the DCC
as T1400477.

model restarts logged for Sat 19/Jul/2014
2014_07_19 19:59 h1fw1

unexpected restart of h1fw1.

Based on yesterdays FC troubles I went back and had a look at some of my alogs regarding humidity in chamber.

By looking at the various pics I posted of particle counts in links:

https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=12874

https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=12873

https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=12866

https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=12859

You can see the humidity in chambers varies from 13%-33%. I was surprised at this, and I have to take back what I had said to Kate and Calum yesterday at how I said I had noticed that the humidity levels usually stayed pretty constant in chamber here at LHO

Kate G, Calum T, Rich A, Matt H

First of all a BIG/MASSIVE/ENORMOUS thankyou to Calum, Kate and Rich for putting up with a slave driver like me and working a 12 hour shift with me on a saturday

Standing of chambers at the moment as I remember it:

HAM2

PRM..locked…however still need to lock optic barrel stops and remove front optic EQ stops..then ready for FC

PRM baffle…removed

PR3..locked. Ready for FC

MC3..locked…however still need to lock optic barrel stops and remove front optic EQ stops..then ready for FC

MC1..partially locked

Kapton washers not installed on picomotors yet

ISI…locked

HAM3

MC2…FC applied and unlocked

PR2….FC applied and unlocked

Large Kapton washers installed on all picomotors

ISI…unlocked

Covers pulled back from ISI

Coarse wipe down of chamber has occurred

BSC2

Beamsplitter optic…locked

ISI…locked

First contact applied to optic...still need to paint "crust"

New baffle installed

Old baffle needs to be reinstalled after FC pulled

Chamber wipe down occurred

HAM4

SR2..locked…however still need to lock optic barrel stops and remove front optic EQ stops..then ready for FC

TCS optic in front of SR2 optic removed

ISI…locked

HAM5

Faraday..unlocked

ISI…locked

SRM…locked…no FC will be applied

SR3…locked. Spray FC applied, need to paint edges

SR3 front baffle removed

Chamber wipe down occurred

BSC3

Suspension..locked

FC applied to optic…..still needs outer crust applied I believe

Arm cavity baffle still pulled back I believe.

Particle counts

HAM4

In cleanroom start of arvo session

All counts zero

In chamber start of arvo session

0.3um...210 counts

0.5um...80 counts

0.7um...30 counts

1.0um...30 counts

2.0um ...10 counts

5.0 um....0 counts

Probably high due to baffle work

Pics attached if people interested in RH/temp

Focus of tomorrow is to try to finish HAM4 and HAM5, maybe finish BSC3 and BSC2 first contacting, and do some more work in HAM2. See how we go

Calum, Rich A, Kate G, Matt H

More detailed report to come, but Hugh indicated to me that his TF's werent finished when I unlocked this morning. Thus we concentrated on HAM3 and have got the suspensions FC'd, chamber cleaned, everything back in place, Suspensions unlocked, ISI unlocked, covers pulled back.

Hugh its over to you for more testing. Have fun

Calum, Kate, Rich A, Nichole, Betsy

Reporting for the team last night:

After collecting all of the required equipment, we started the ITMx First Contact cleaning at ~5pm yesterday.  We used the spray cone to apply a nice coating to the CP-AR and then to the ITMx-HR.  When we did the ITMx-HR we had to slide the ACB wedge part way out in order to have the ACB swing back in such a way to not interfere with the spray cone attached to the front of the QUAD structure.  Reportedly there is a new cone somewhere that does not interfere with the ACB fully swung back.  Will continue tracking said cone.  The plan is to clean the chamber and continue with other mechanical closeout items before pulling the FC and closing the chamber door (the typical procedure).

Prior to starting the First COntacting of the ITMx-HR surface, we attached the green lantern fixture and inspected for particulate on the surface of the optic.  A few weeks ago, we used the fixture to spot ~2 particles per sq. inch on this surface.  Since then, much in-chamber activity has taken place.  Yesterday, we spotted ~5-10 particles per sq. inch.  We should inspect after we pull the FC.