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, Rich

Installed beam splitter baffle.  The installation was a bit tricky at first, but then went relatively smoothly.  

Key lessons learned:

Once you are poised to install the parts, these cryptic instructions will make sense...
1.  Despite a feeling that the parts won't fit, they actually will.
2.  Put the earthquake stops onto the earthquake stop bracket prior to mounting the bracket onto the flat plates.  Failure to do this means a fussy installation after you bolt the flat plates in place.
3.  When putting in the flat plates that are parallel to the barrel of the optic, keep the top mounts loose to incrementally achieve clear alignment on the multiple fasteners.
4.  After installation of the flat plates, it is helpful to slightly bend the aluminum plate to achieve a bit better clearance of the lower prism.
5.  When installing the side channels, fully insert them into their final position prior to putting the H-bracket on.  The side plate will index against the side of the suspension cage so you can relatively easily get the fasteners in without threatening the suspension wires or prisms.
6.  The clearances are pretty small and the stakes are pretty high.  Move slow and avoid coffee.

Other things will conspire to make this installation tricky, but they are not to hard to figure out on the fly.

The path around the H2 BSC chamber to the back side of the vacuum envelope at EndX goes through and under the white steel frame for the SEI and SUS mating.   See photo below.

The overhead clearance is really low, about 5 to 5.5 feet.  It can be and has been a real head buster.  Especially hard to navigate with (often fogged) laser glasses, clean room garb etc.

Mike Vargas added some red tape to both sides while I was picking myself up.

We might consider dismantling it now or somehow rerouting  the path to the back side.

Darkhan Tuyenbayev, Forrest Shriver, Thomas Abbott, Travis Sadecki

Travis installed the Pcal ETM target on the suspension frame.

EndX was transitioned to Laser Hazard for the Pcal 1047 nm laser.

Checking Pcal periscope structure alignment began by sliding under the Arm Cavity Baffle.  Had do move the particulate witness plate about a foot East from directly under the center of the ACB.

Got a good start on the alignment checks.  Plan to return Monday morning to continue with this work.

EndX transitioned to Laser Safe before leaving.

HAM4

In cleanroom start of session

All counts zero

In chamber start of session:

0.3um..10 counts

0.5um...10 counts

0.7um...10 counts

rest zero

In chamber end of session

(Didnt bother as was only in there for 2 minutes total)

HAM2

In cleanroom start of session

All counts zero

In chamber start of session

All counts zero

In chamber end of session

All counts zero

HAM3

In cleanroom start of session

0.3um...10 counts

rest zero

In chamber start of session

All counts zero

In chamber end of session

0.3um...350 counts

0.5um....180 counts

0.7um....110 counts

1.0um...70 counts

2.0um...20 counts

5.0um...0 counts

I took the readings 4 times and these are accurate. Mind you I guess it could be due to a combination of me moving baffles, and by this stage also work was going on in BSC2 trying to put the baffle on

I have included pics for people fo humidity/temp readings as well

I have locked the face stops of the intermediate and bottom mass of three of the 4 HXTS's in HAM2. Just MC1 to go (which of course will be the hardest). I have marked the position of the baffle in front of PRM using dog clamps and removed the baffle

After locking the ISI, I then proceeded to lock the face EQ stops of the intermediate and bottom mass of MC2 and PR2. Then like in HAMs 4 and 5 yesterday I had a look around at the other EQ stops on both suspensions on all three stages. All look in good position and the nuts are locked down, so didnt have to touch them.

I marked the positions of the MC2 and PR2 scraper baffles using dog clamps and both scraper baffles have been removed to allow access to the optic to first contact them

Well I left it as late as i could to try to make sure that Hugh's TF's were finished..but for the record in case I didnt, at a little after 10am I started the locking process on HAM3. The "A" locker is a little sticky but other than that is fine

model restarts logged for Fri 18/Jul/2014
2014_07_18 10:48 h1iopsusey
2014_07_18 10:50 h1susetmy
2014_07_18 10:51 h1sustmsy
2014_07_18 11:17 h1broadcast0

no unexpected restarts. EY rcg2.8.4 revert, add chan to broadcaster.

Particle counts for this afternoons session in HAMs 4 and 5

HAM4

Cleanroom start of session

All zero counts.

Chamber start of session:

0.3um....350 counts

0.5um.....150 counts

0.7um...60 counts

1.0um....40 counts

2.0um...10 counts

5.0um...0 counts

Chamber end of session

0.3um....70 counts

0.5um...20 counts

0.7um.....20 counts

1.0um....20 counts

2.0um....20 counts

5.0um....0 counts

HAM5

Cleanroom start of Session

All counts zero

Chamber start of session

0.3um....160 counts

0.5um....70 counts

0.7um....30 counts

1.0um....30 counts

2.0um...10 counts

5.0um...0 counts

Chamber end of session:

0.3um.....130 counts

0.5um...30 counts

Rest...zero counts

As an added note: it was interesting that I could smell the First contact as it was being applied in BSC2 all the way up at HAM5 when I was working there. Just more interesting than anything as shows how the purge can propogate stuff from that chamber all the way to HAM5

I have included photos in case people are also interested in temp or RH in chamber at time

After the SEI guys locked up the HAM4 ISI I went in and locked up the face stops of the intermediate and bottom mass of SR2. Like in HAM5, I noticed a lot of EQ stops were pulled back a long way and so using an inspection mirror/flashlight combination I have set EQ stops closer (where appropriate) and locked the EQ stops nuts into position (as best I could). Thus to lock and unlock the suspension  from now until closeout should only require locking and unlocking the face EQ stops of the intermediate and bottom mass.

To enable FC'ing of the mirror to happen I marked the position of the TCS mirror in front of SR2 with dog clamps and removed the mirror (see pics below)

SR2 should now be ready for FC'ing

Following the connection of the SEI control signals out of the HWWD chassis to the ISI Coil Drivers, we changed the HWWD settings to nominal:

We also changed these settings in the h1susetmy_safe.snap file and committed to SVN (r8402)

After the SEI guys let me know HAM5 ISI was locked back up I went in and locked the face stops of the intermediate and bottom mass of the SRM and SR3 suspensions. I then used dog clamps upside down to mark the position of the baffle in front of SR3 and removed it so that the SR3 optic can be first contacted.

I then had a look around both suspensions and noticed that a lot of EQ stops were a long way back. I have gone around both suspensions using an inspection mirror/light and moved EQ stops closer and locked (as best I could) the EQ stop nuts so that the EQ stops should not move. This includes moving three of the 4 EQ stops underneath the intermediate mass of SR3 closer (I couldnt get an an angle to adjust the fourth one closer, but I could do up the nut). When it comes to unlocking and locking the suspensions from now until closeup should only require moving the face stops of the intermediate and lower mass.

The suspensions should now be ready for first contact to be applied

I also whilst in the chamber wiped out the inside of the bellows, etc. If you asked me if it was necessary, see the pic for an example of the sort of stuff was getting on wipes when wiping out the bellows

Peter, Jim, Dave

we added a 2Hz low pass filter on the RFPD filter module within the FSS model and turned it on. I moved the H1PSLFSS.txt file to the userapps area and checked it into SVN (r8401).

Rebalanced the ISI and ended up removing 0.8lbs and moving other.  Not too bad and a well within spec lock/unlock with worst shift of ~400counts (1600 spec.)

The ISI is unlocked and SUS has now unlocked the SUSes and we'll set up for TFs tonight.

Oh yeah--Dusts               0.3          0.5

Clean room before         0             0

Chamber  Before Work  270       130

Chamber After Work       1200        430

It looks like the data from the ETMY STS is not getting saved to the frames correctly. If you look at the attached plot, it shows an ASD of the ETMY STS. I've plotted  both the data (5 minutes of data starting at 17 July 00:00 UTC) from the SENSCOR channels (H1:ISI-ETMY_ST1_SENSCOR_GND_STS_X/Y/Z_FIR_IN1_DQ) and ISI-GND channels (H1:ISI-GND_STS_ETMY_X/Y/Z_DQ) - no filters have been applied, this is just the raw data. The SENSCOR channel looks fine so we do not think the sensor is broken, but the data isn't being saved correctly to the H1:ISI-GND_STS_ETMY_X/Y/Z_DQ channels. 

Summary - Data is not being saved correctly to the H1:ISI-GND_STS_ETMY_X/Y/Z_DQ channels.