Find attached some performance plots for BSC-ISI BS. Those first results are promising, even if there is room for improvement and tweaking.

*** HEPI ***

- HEPI with position control (100mHz UGF)

- No feedforward

*** ISI ***

-  Stage 1 blend

o   750mHz for RX, RY, RZ
o   100mHz for X, Y and Z

- Stage 2 blend

o   750mHz for RX, RY, RZ|
o   100mHz for X, Y and Z

- Level 3 controllers

o   Stage 1    40-42Hz
o   Stage 2    30-32Hz

- Feedforward ON

- Sensor correction from the ground ON

*** SUS ***

- Damping loops on the top mass ON

This configuration was on all night (very stable). Spectra presented were measured at 1062915770 (start time) during 45 minutes.

I fixed the problem from LLO alog 8659, ECR E1300715, Bugzilla 398 and LHO WP 4124 where due to an error in the L1 and L2 blocks of the QUAD_MASTER part, the outputs of the DAMP block were plumbed incorrectly.

I svn upped Stuart's corrected QUAD_MASTER.adl and checked that it was being picked up by h1susitmx, h1susitmy, h1susetmx, h1susetmy and h1susquadtst.

I did a make and make install- on all five models.

I restarted all but h1susetmy (which is offline during the chamber move).

I BURT restored all but h1susetmy to 10:00 and reset watchdogs on h1susquadtst and h1susitmy (h1susetmy is offline, h1susitmx isn't connected yet, and h1susetmx had been tripped, presumably due to SEI activity).

Attached are plots of dust counts requested from 4 PM September 15 to 4 PM September 16.

Jim, Sebastien

New tests have been done on the BSC-ISI in the staging building (to see the first results, go to log #7718):

1. We swapped the feedthrough between corner 2 and corner 3. Doesn't change anything: the feedthrough in corner 3 seems to be good.

2. We use 2 cleaned breakboards and an oscilloscope  to track the signal of the GS13 in corner 3. The first one was directly plugged into the sensor, the second one at the end of the pigtail cable. The signal coming out of the first one seems to be good: nice amplitude, reacts at low and high frequencies. The signal coming out of the second one looks bad: very weak amplitude (factor of 200 compare to the first one), no reaction to DC excitation.

We swapped the pigtail cable with the one from corner 2, and even with a new cable: no changes.

3. We used this new cable and a new GS13 in corner 3: no changes...

Thus no conclusion yet, we're still investigating.

Still not in pressure equilibrium-intended scan requires 

Run time used for 44" electric gate valves not applicable for 48" gate valves

Will take an RGA scan later this afternoon then open GV2

I stopped the IOC for the dust monitors in the optics labs to test them with revised code. I did this twice. The first time I tested the new code as controls on h0epics2 running Ubuntu 10.04.4 LTS. This unsurprisingly did not work, because it was compiled on sysadmin0 running Ubuntu 12.04.2 LTS (GNU/Linux 3.2.0-41-generic x86_64). The second time I ran it as patrick.thomas on opsws8 running Ubuntu 12.04.2 LTS (GNU/Linux 3.2.0-51-generic x86_64), which did work.

This was done from approximately 15:50 to 16:35. The old IOC is running again and was burtrestored to 08:00 today. However, there was a problem with the EDCU, which did not seem reconnect to the channels after the old IOC was brought back. Dave restarted the DAQ and it seems to be working now as of around 17:20.

I have attached plots of the relevant channels over the time in question. When the mode is changing the data should be good. The data appears to have been lost for these dust monitors from around 3:56 PM to 5:10 PM.

A quick DAQ restart to force the EDCU to reconnect to LAB DUST EPICS channels. No reconfiguration made.

Over the past two days, B&K hammering measurements have been carried out on the ITMX and ETMX.

For the two measurements, the suspensions were fully payloaded, vibration absorbers were mounted on the structure, and the ISI was still locked.

A tri-axis accelerometer has been mounted on the corner of the structure, and the hit was given with a hammer at two different locations (front and side) as showed on the two pictures attached (1) for ITMX and (2) for ETMX. The pls template SimpleHammerDisplay3 from T1000697 was used to take the data, with a force threshold set at 10N.

Plots in "2013-09-13_H1ETMX_H1ITMX_ISI_Locked.pdf " are showing a comparison between the results for H1 ETMX, H1 ITMX, and L1 ITMY X resp to X exc on the 1st plot and Y resp to Y exc on the 2nd plot. The main resonnance below 150 Hz is well damped in both directions, for both suspensions.

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Data (ascii and pls files) are located in /QUAD/H1/${ETMX/ITMX}/BandK, plotting script (BandK_plot.m) is located in /Common/Matlabtools/, and pdf results are located in /Common/Data/BandK. They have been commited to the svn. 

The sei test stand is now back on track and up to date with the last svn version (4455).

The front end IP address is 10.11.0.23 (seiteststand2). Two workstations are connected to the test stand network:

- stormy.ligo-wa.caltech.edu

- 10.11.0.94 --> use this station for the graphical display (especially on the Mac in the high bay)

The channel names for the test stand are ITMX channels (example: X1:ISI-ITMX_ST2_GS13INF_V3_IN1_DQ). Everytime we are testing a new unit, the result will be saved into the X1/ITMX/ arborescence.

*** Testing procedure for a new unit ***

Here's an overview of the different steps to do when a unit is tested.

1. Create the folder structure /X1/ITMX. You can either do it by hand or use the following function: /ligo/svncommon/SeiSVN/seismic/BSC-ISI/Common/Misc/Arborescence_BSC_ISI.m

2. Follow the document DCC#E1000486 to do the testing

3. When the testing is done and everything is saved into the good folders, rename the ITMX folder with the good name (ex: Unit_5). The different data are still going to be called with an ITMX name, but the overwall folder will have the good name. It will be enough for us to keep track of our units. The easier way to rename the ITMX folder is to use svn rename (ex: svn rename ITMX Unit_5)

4. Be sure to svn commit everything at the end.

5. Repeat the process for the next unit.

Day shift summary
08:00
LVEA Laser Safe
Alarms: Dust

09:39 Hugh at HAM6 working on HEPI
09:50 Cory & Andres at End-X working on face stops on ETM-X
10:06 Alexa working in HAM6/Squeezer bay – Bay is laser hazard
10:23 Cyrus Removing old network switch and relocating dust monitors
10:27 Gerardo & Tyler working on the ACB assembly at the LVEA SUS test stand
10:35 Andres working on cabling the SM HAMs 
11:15 Instrument Air alarm on PT599 at End-X; Informed Kyle 
13:47 Kyle in LVEA to shut GV2 
13:57 Gerardo working on ACB assembly at the LVEA SUS test stand
16:00 Patrick recycling dust monitors in optics lab 

GregG, JimW

After SUS, et al. finished locking the ETMx optic, Greg and I went to the end station to work on balancing the ISI and route some cables. We first uncovered the ISI and finished routing the various cables that have been added since the TMS was mounted (still have the ESD cable to route, I forgot it was up there ...). After doing a "feel" test of the lockers to make sure our payload wasn't way off, we unlocked stage 2 the ISI. When I went to look at the CPS signals in dataviewer I saw we had problems. One possible dead CPS (maybe just railed, the lockers on St2 let you do that) , and one entire corner (4 sensors) that is just reading electronic noise at ~1 ct. Hopefully the dead conrner just means I forgot to turn something on. Preliminary spectra on everything look good, so no show-stoppers so far. Too late today to fix everything, so we'll come back to it on Monday.

I finished the removal of the Foundry switch in the LVEA, and the Dell switch in the MSR that was supporting the Foundry switches today.  This completes all the work covered in WP4127, now closed.

The connection was lost after Cyrus's network work today (work permit 4127).

ETMx Silica-tipped Earthquake Stops Positioned on Quad (Andres, Corey)

The face EQ stops for the ETMx needed to be positioned, but we don't want "glass on glass" contact.  We didn't have thin teflon strips to insert between the EQ stops and the glass, so per Betsy's suggestion, we used Alpha Wipes as a buffer between the Stops & Glass.

SUS TMS Cable Fixed

Installed screws on an in-vac cable which had these screws missing from its connector.  All TMS cables are good to go for dressing on the ISI.

ITMX transfer functions ran overnight are showing a better agreement with the model after the recent modifications (see alog 7755). Results are described below

(1) In black ITMX last TF, after aligning two top mass osems and adjusting lower mass face EQ stops , compared with the measurement took 2 days ago, after having retracted top EQ stop touching the top of the test mass (in orange), compared with the model

(2) In red, ITMX last TF compared with wire rehang model

Data Scripts and PDF files have been commited to the svn

In preparation of RGA scanning later today

Just checked the ITMx alignment after the latest round of rubbing fixes.  Bottom line is the ITMx is still within spec and aligned.  Position alignment still remains unchanged from log 7638.  Pitch/yaw numbers are as follows:

• Pitch Error: 37 µrad down
  • Actual Pitch: 656 µrad down
  • Target Pitch: 619 µrad down
  • Tolerance: ±50 µrad
• Yaw Error: 15 µrad CCW
  • Target Yaw: 0 µrad
  • Tolerance: ±50 µrad