Daniel requested I add the full set of Beckhoff PLC1 channels in the MSR to the frame. I had been acquiring a small subset of these defined in the ini files:

H1EDCU_PSLENV.ini

H1EDCU_ECATPEM.ini

H1EDCU_TIMING.ini

These were removed from the daq master and replaced with a new

H1EDCU_ECATC1PLC1.ini

I modified the file to set acquire=3 so channels go both into the full and science frames.

At 12:42 I restarted the DAQ. The EDCU channel count increased from 3,656 to 17,237.

The full frame size increased from 444M to 448M, the science frame increased from 232M to 237M.

ETMX transfer functions Phase 3a after 2nd round of alignment yesterday (cf alog 8503 and 8525) have succesfully been completed, and they show an excellent agreement with the previous measurements taken after the first alignment.

Results attached are described below

(1) M0-M0 undamped TF comparison with the model

(2) R0-R0 undamped TF comparison with the model

(3) M0-M0 undamped TF comparison with the first phase 3a measurement, and the model

(4) R0-R0 undamped TF comparison with the first phase 3a measurement, and the model

Data results and scripts have been commited to the svn

Kyle 

11/12/2013

Removed aux. pumps from annulus piping -> Isolated gate annulus from rest of annulus volume for ~30 minutes or so then recombined then isolated -> Observed expected changes in ion pump current (verifying gate annulus isolation valve working and that gate annulus volume is, in fact, evacuated) -> Applied 30 psi to underside of GV6's piston, increased to 40 psi a few hours later followed by 45 psi an hour or two later -> GV6 remained cammed closed -> Will abandon attempt for now -> recombined gate annulus volume (now having been un-pumped for ~6 hours) -> annulus ion pump current increased from (0) LEDs to (1) LED -> Gas load from annulus volume minimal -> Isolated gate annulus volume -> Leaving GV6 with 20 psi applied to top of piston for overnight -> Will repeat opening attempt tomorrow 

The IMs and MCs have been burtrestored to the automatically generated snap file from monday 11/11 at 20:00

Attached are 10 min trends of the IMs osem signals in the euler basis (Long/Pitch/Yaw) during alignment on monday, and today after restoring the snapfile.

picture 1 : Monday 11/11 from 19:50 to 20:00 PT

picture 2 : Today 11/14 from 10:20 to 10:30 PT

No major shift is seen when comparing both trends

J. Kissel, A. Pele

Though Arnaud had posted a few of the pictures from our B&K hammering session of ITMX in BSC3 (see LHO aLOG 8497), I post the rest here because I got more pictures that are not necessarily B&K related. I attach four .pdf albums, captioned below; along with a few of the best publicity photos attached in raw form.

2013-11-13_BSC3Cabling.pdf
-  Nothing to be alarmed by here, but I noticed that tons of cabling were draped from ST0 of ISI-ITMX to their respective feedthroughs in rather hap-hazard ways, and I was worry about potential shorting of isolation between the suspended payload of HEPI and the Chamber. I mentioned this to Jim, and he quickly assured me that the cables are still in a transient state, and will most certainly be cleaned up before the chamber is closed up. I merely post for posterity, so we (i.e. not just folks in SEI) remember what *not* to do.

2013-11-13_BnKHammering.pdf
- Just a few more pictures from the B&K hammering session, indicating where I was hitting and a few action shots. As I said, Arnaud has posted most of these already in LHO aLOG 8497.

2013-11-13_ITMXPublicityPhotos.pdf
- It's always good to get some shots that can be later used for posters and talks. Here's a fashion show of H1 SUS ITMX.

2013-11-13_IXArmCavityBaffle.pdf
- A couple of things to note here:
(1) The first two pages show just how incredibly close the ACB is to the QUAD structure as a result of the move decreed by IAS. In page two I'm trying to hold up a 3/16ths allen key up for perspective, but it didn't work out so well. I would estimate the gap at-closest-approach is no more that 5 [mm]. It just gives me the willies. Especially since I gave the ACB a few milli-Jeffs of calibrated excitation, and it started waggling with reasonably high Q at ~5-10 [Hz]. Is the fundamental resonance of this suspension really that stiff / high-in-frequency? Hurumph.
(2) This is the first time I've seen the suspension system up-close and personally, so I wanted to get some good shots of it. Very interesting design...
(3) There's still some tooling lying around on the baffle itself. We should make sure to grab these before chamber close-out.

MCL PZTs used for ALS injection alignment on the ISCTEX|Y have strange convention.

X=PIT (rotation around X or horizontal axis)

Y=YAW (rotation around Y or vertical axis)

Also the gain of the internal feedback is set to the highest, which seems to cause a large oscillation for 2" optic. You need to open the chassis and move the jumper to reduce the bandwidth.

See https://dcc.ligo.org/e1300870.

Attached is a 4 day trend plot with the IPS readings at BSC3 during the final alignment on Monday 11 November.  Here are the numbers:

If you look at the plot, you'll see that the readings have drifted since alignment from the table values but things just look to be settling and no shift is larger than 0.001" (655cts/mil).  The apparantly large shift (it really isn' that large) on the verticals ~1/2+ way through the plot is maybe the corner cube removal.

HEPI Actuators were locked this morning for the door removal.   Locked position is within 0.001" of unlocked values.

I logged the OMC OLs for Jeff B:

prettyOSEMgains('H1','OMC')

M1T1 20997 1.429 -10499
M1T2 21195 1.415 -10598
M1T3 23620 1.270 -11810
M1LF 22733 1.320 -11366
M1RT 21724 1.381 -10862
M1SD 22193 1.352 -11096
 

Gerardo and Gerardo Jr. are bonding ears to PUM-ETM06.  As of yesterday 1 ear had been bonded.

Many things didn't make sense at first (see Sheila's alog) but anyway we injected the green beam into the chamber, adjusted the beam position on the first steering mirror, roughly aligned that mirror so the beam hits both of green QPDs, and started using ISCT mirrors to further align the beam to TMSX.

The green beam is already hitting the ETMX, the return beam is coming back to the secondary mirror but is not making it to the TMS ISC table yet.

Tomorrow, we'll continue with in-chamber alignment.

The pull list for end X has a lot of ?s on it, it was not clear what should be connected to what on the PZT controllers. When we first tried turning on the servos turning on the pitch servos would cause the spots to move away in yaw and vice versa, so we swapped the cables for the input to the MCL PZT controllers from X to Y.  After that the pitch servos cause the beam to drift of in pitch, and yaw in yaw.  Then Chris switched the sign of QPD B in pitch and swapped PZT1 and PZT 2 in yaw.  Now the servos seem to be working.  Clearly we need to measure the matrices in the morning.  

Measured and adjusted the RF power levels associated with the LO drive to the ASAIRA and ASAIRB demodulators (18, 45, 90 MHz)

45MHz to LSCAIR-A 
Changed pad at input to distribution amp to bring the RF drive level down by 3dB as measured at the demodulator end of the LO cable.  The pad was 2 dB, now it is 5dB.  The measured RF drive at the LO jack on the demodulator was 13.0dBm, and has now been reduced to 10.0dBm

18MHz to LSCAIR-B
Added at 2dB pad to the RF distribution panel such that the measured LO at the demodulator LO input is now 10.0dBM

90MHz to LSCAIR-B
Measured the LO drive at the demodulator LO input and found it to be 10.6dBm.  Decided to leave it at that as it's close enough.

This morning Travis, Jason and I made the ~last pitch alignment of the ETMx.  We also pulled the FC from the inside of the 2 East viewports and the ETMx CP-AR.  However, when we pulled the FC off of the CP-AR, the thin central portion of the sheet left segments of a ring around the center of the optic.  Par for the course.  And, of course, I could not get any good pictures of the feature so I'll attach a sketch shortly.  I'll get with COC to see what I should do - note, I cannot get the spray cone on to resheet the First COntact and start over, so either we'll need to live with these remnants, or I'll have to get crafty with a smaller cone.

But, back to the alignment - we aligned the ETMx to an offset pitch pointing such that when we pull the First Contact sheet from the HR surface, the optic bounces up to point the nominal pitch.  However, this does not help TMS with their alignment now.  After consult with IAS/TMS we decided to put the offset pitch onto the bias slider of the ETMx.  We have the range according to the uRad-calibrated bias slider, however Jason is going to go map it out and confirm the calibration of the slider with his optical equipment (still set up).  This should not take long, and he will leave the offset bias enabled for TMS to start their alignment asap.