(Corey, Doug, Keita, Yuta)

X-Translation Push

Started off the day securing the TMS with "hard stops" and installing (7) teflon-tipped dog clamps on the TMS Upper Structure & Pusher in preparation for our horizontal translation of ~6.5mm to the "left".  Doug watched us as we pushed the entire assembly this distance.

Yaw Alignment

After the big move, we then set up to fix the yaw of the structure.  This took a few iterations, because we noticed that after we Yawed and looked good, we would back off the Pusher and see that the structure springed back a little.  So we had to figure out how to overshoot and then have it spring back to nominal.  Once Doug was happy here, we torqued down all the Dog Clamps (25ft-lbs) and moved to pitch.

Pitch Alignment

The TMS was then freed up, balanced, and prepared for pitch work.  The back end of the TMS was seen to be pitched UP, so Yuta and I moved the TMS Table Counterweights toward the back, and we were able to get the Table pretty flat according to Doug.

Clean-Up & Tomorrow

So with this alignment, with a 0.0 Pitch & Yaw bias, we had a most excellent alignment of the TMS.  Doug and Jason were excused and we worked on finishing clean-up:  remove all Pusher hardware, re-install/torque removed Dog Clamps, re-adjust BOSEMs to new alignment, and then put TMS on EQ Stops.

NEXT UP:  Install tooling to secure the TMS for Cartridge insertion.

h1susauxb123
h1susauxh2
h1susauxh56
h1susauxh34
h1susauxex
h1susauxey

   The in chamber power spectra (aLOG #9961) for H1-SR2 showed noise at around 10Hz and up which does not appear in the LLO spectra for the same type suspension and phase of testing. Per the testing group’s request, the spectra data for H1-SR2 was reprocessed to show the individual channel data for each DOF and with additional comparisons to other LHO HSTS suspensions. The plots are posted below. All scripts and data files have been committed to the SVN repository. 

Dave, Jim, Stefan

Stefan restarted the h1odcmaster model which has been running since Friday evening and it did two things: locked up the h1oaf0 machine and caused DAQ errors on both end station front end computers, plus LSC, ASC and SUSAUXB123. Running start-streamers on the affected front-ends did not fix the problem. We took h1oaf0 out of the dolphin fabric, its console was locked up so we power cycled the CPU. All the models started OK and the MX stream error resolved itself. A few minutes later the IOP IRIGB drifted upwards to 66 and then back down to 15.

I stopped the h1oafmaster model and then started it again. Once again it froze up the CPU but this time no MXSTREAM errors on other front ends.

We took h1oaf0 out of the fabric and power cycled, once again h1odcmaster started (with 0x2000 DAQ error due to INI file mismatch). 

We are now testing on the DTS.

The login machine has been updated today, including an updated authentication module.  This work required a reboot of the system.

The first power amplifier after the IFR function generator was saturation at an input of +13dBm.

- I reduced IFR from +13dBm to +10dBm to avoid saturation.
- I backed out all 3dB attenuators in the various feed lines.
- I added a 3-way power combiner in the the 9MHz line to the EOM.

This increased the drive to the 9MHz EOM by 10*log10(3)=4.77dB (compared to the original setting), or 1.77dB compared to yesterday's setting.

We now should have a 9MHz modulation index Gamma of about 0.17.

A new version of gds tools has been installed for the DAQ test stand computers running Ubuntu 12.04 or Mac OS X.  This will be effective with new logins or tools started from the command line of a new terminal window.  The changes include a fix for diaggui to allow it to display reference traces with the proper x-axis values (Bugzilla 254), and a fix for foton to increase the number of significant digits used in design strings.

A new version of gds tools has been installed for the control room computers running Ubuntu 12.04 or Mac OS X.  This will be effective with new logins or tools started from the command line of a new terminal window.  The changes include a fix for diaggui to allow it to display reference traces with the proper x-axis values (Bugzilla 254), and a fix for foton to increase the number of significant digits used in design strings.

Translating TMS on test stand.

Doug or Jason watching alignment.

Gerardo, Mitchell,
Yesterday the ACB was successfully balanced. Today I will work on getting the tooling and hardware needed for install kitted up. 

Yesterday we made some measurements for the noise model (end sation PDH spectra and open loop), and ALS COMM slow path, fast path and open loop). 

Then we moved on to trying to make some noise measurements.  We tuned the demod phase of RF A 9 to put the signal in the Q phase (we don't have enough range with the phase shifter to put it in the I phase).  The demod is now on local control (remote controls not working) with al switches down except for 8, 2, 1, and 1/2 (11.5 ns delay). 

We also tried to check the IR alingment into the arm cavity by locking at the transmitted PD.  We found the 00 mode with the COMM PLL offset at 1.23, and saw up to 90 counts in transmission.  We saw a misalingment mode (between pitch and yaw) at 6.48, with 17 counts in transmission.  We strugged to improve this, mostly because the transmitted power was fluctuating so much from the frequency noise. 

We engaged the boost on the PLL readback path, (adding more DC gain to ALS CARM).  This reduced the noise significantly, although we were still moving by mre than a linewidth, so we can't really make a linear measurement when locked with ALS COMM. 

Brett S Arnaud P

This afternoon we measured the resonnance frequencies of the ETMY in two locking configurations in order for Brett to improve the parameters of the quad model. We used PUM/UIM osem signals as well as the "temporary" optical lever to measure them. We plugged the pd electronics to the three first channels of h1pemey ADC0 in order to read the op lev signal from dtt.

For the first measurement, the top mass was locked and PUM, UIM, test mass were free. At first we didn't have a really clear signal from the PD in Pitch and Yaw, and since the PUM flags seemed to be really low and touching the osems Brett had to adjust the earthquake stops of the reaction chain in order to get the lower masses freely suspended. After the few adjustements, measurement showed all the needed frequencies in the osems as well as in the op lev.

For the second measurement, the top mass and UIM were locked. This time, the reflected beam was moving too much due to excess pitch/yaw motion, and after waiting a long time for the suspension to settle down, we changed the plan, and pointed the beam to the right edge of the test mass (bottom edge of the ear) to measure only the bounce modes. The dtt spectra of the op lev sum looked somehow funny. Fortunately the PUM osem signals were sufficient and showed all the frequencies, even the ones of the bounce modes.

Brett will post the results when they will be processed

This is the commercial software controlling the Lighthouse particle counters in the H1 PSL enclosure.

Logging into h0dust (Windows 7 Pro SP1 64 bit virtual machine) through VNC this afternoon I found the error message in the attached pictures.

I found two related events under Event Viewer (Local) -> Windows Logs -> Application on 2/7/2014 11:02:01 AM. The text of the errors is attached.

Searching for related information I found the following: http://support.microsoft.com/kb/2640103

I was on a mission of figuring out what we need to get done for running the OAF (Online Adaptive Filtering) model. I started the mission from simply copying Livingston's model. It seems that there are many things to be done mainly on some other models e.g. HEPI, ISI and PEM models.

Here are the items we have to do to get the model fully compiled:

• A model, called h1pemcs, needs to be newly created.
• h1pemex and h1pemey need to have RFM blocks to send some signals to h1oaf
• All the ISI models need to have PCIe blocks to send the GS13 signals to h1oaf
• h1hpibs needs to have a couple of PICe blocks
• We need to copy some c-coded stuff from /isc/l1/src/

HAM3-ISI tripped recently and needed to be turned back on. Commissioners noticed that the command buttons were not working anymore.

It turns out that someone ran an SVN update on the following file: /opt/rtcds/userapps/release/isi/common/scripts/HAMISItool, which was to be updated along with new models, screens and scripts, after testing at MIT. Having a model/script mismatch, the command script would be looking for inexistent channels, and fail.

I reverted HAMISItool to -r5830. This script should not be updated from the SVN again, until the latest HAM-ISI update gets propagated.

HAM3-ISI was turned back on with Isolation Lv3 and 01_28 blend filters. Target values were not changed to ensure returning to previous alignment.

Jeff B. & Kate G.

A horizontal 4" witness plate (wafer) and horizontal 1" optic (S/N 1247) were placed near the center of the SEI table on Feb 5th. A vertical 1" optic (S/N 1245) was mounted on the HR side of SR2. A vertical wafer still needs to be set near SR2. 

Important notes: Witness samples were not placed immediately after the chamber was opened. Jeff did some cleaning before SR2 was installed and the wafers and optics were placed. Also, the 1" optics were removed from their PET G containers, put in PEEK holders, double bagged, and stuck in a bag with other tools before going in chamber. I didn't see obvious scratches in the First Contact, so hopefully the samples weren't damaged.