On Thursday and Friday, Emily, Terra, Vinny, Dominick, Brian and I got PEM channels going in the PSL, ISCT1 and Y-end. Dave got these channels into the frames. On Saturday, Daniel and I ran the HIFO and found coherence to be especially strong with sensors at the PSL periscope and ISCT1. Today I ran the HIFO with the PSL fans shut off, except for the makeup air. Figure 1 shows a substantial broad band improvement in the HIFO-Y error signal from shutting these fans down. We intend to run with the makeup air at a low rate, but I didnt feel any difference in the flow out of the PSL feed-throughs between 100%  and 1% settings of the makeup air so we will have to look into this to make further improvements. The broad peak at 70 Hz is coherent with ISCT1 motion so we will look into this this week as well.

I did cleanup on the BSFM screens in /opt/rtcds/userapps/trunk/sus/common/medm/bsfm as for HAUX, HTTS and QUAD.

As usual the main goal was to make all the link arguments look similar to the following (text editor view of .adl file), plus any other appropriate fixes:

args="%(read $(USERAPPS)/sus/common/medm/sus$(optic)_overview_macro.txt),USERAPPS=$(USERAPPS),SITE=$(SITE),site=$(site),IFO=$(IFO),ifo=$(ifo)"

Details:

No change (already OK): SUS_CUST_BSFM_ADC_MONITOR.adl, SUS_CUST_BSFM_BIO.adl, SUS_CUST_BSFM_DAC_MONITOR.adl, SUS_CUST_BSFM_DC_ALIGN.adl, SUS_CUST_BSFM_IPC.adl, SUS_CUST_BSFM_M1_CART2EUL.adl, SUS_CUST_BSFM_M1_OSEM_ALIGN_??ZOOM.adl, SUS_CUST_BSFM_M1_COILOUTF.adl, SUS_CUST_BSFM_M1_DAMP.adl, SUS_CUST_BSFM_M1_DRIVEALIGN.adl, SUS_CUST_BSFM_M1_EUL2CART.adl, SUS_CUST_BSFM_M1_EUL2OSEM.adl, SUS_CUST_BSFM_M1_ISIINF.adl, SUS_CUST_BSFM_M1_LOCK.adl, SUS_CUST_BSFM_M1_OFFLOAD.adl, SUS_CUST_BSFM_M1_OPTICALIGN.adl, SUS_CUST_BSFM_M1_OSEM2EUL.adl, SUS_CUST_BSFM_M1_OSEM_ALIGN.adl, SUS_CUST_BSFM_M1_OSEMINF.adl, SUS_CUST_BSFM_M1_SENSALIGN.adl, SUS_CUST_BSFM_M1_TEST.adl, SUS_CUST_BSFM_M1_WD_ACT_BANDLIM.adl, SUS_CUST_BSFM_M1_WD_OSEMAC_BANDLIM.adl, SUS_CUST_BSFM_M1_WD_OSEMDC_BANDLIM.adl, SUS_CUST_BSFM_M2_OSEM_ALIGN_??ZOOM.adl, SUS_CUST_BSFM_M2_COILOUTF.adl, SUS_CUST_BSFM_M2_DRIVEALIGN.adl, SUS_CUST_BSFM_M2_EUL2OSEM.adl, SUS_CUST_BSFM_M2_LOCK.adl, SUS_CUST_BSFM_M2_OSEM2EUL.adl, SUS_CUST_BSFM_M2_OSEM_ALIGN.adl, SUS_CUST_BSFM_M2_OSEMINF.adl, SUS_CUST_BSFM_M2_SENSALIGN.adl, SUS_CUST_BSFM_M2_TEST.adl, SUS_CUST_BSFM_M2_WD.adl, SUS_CUST_BSFM_M2_WD_ACT_BANDLIM.adl, SUS_CUST_BSFM_M1_WD_OSEMAC_BANDLIM.adl, SUS_CUST_BSFM_M2_WD_OSEMDC_BANDLIM.adl, SUS_CUST_BSFM_M3_ISCINF.adl, SUS_CUST_BSFM_M3_LOCK.adl, SUS_CUST_BSFM_M3_OPLEV_MTRX.adl, SUS_CUST_BSFM_M3_OPLEVINF2.adl, SUS_CUST_BSFM_MONITOR_OVERVIEW.adl, SUS_CUST_BSFM_ODC.adl, SUS_CUST_BSFM_OSEMINF.adl, X1SUS_CUST_BSFM_OVERVIEW.adl

Basic cleanup: SUS_CUST_BSFM_OVERVIEW.adl, SUS_CUST_BSFM_DACKILL.adl, SUS_CUST_BSFM_M1_CENTERING.adl, SUS_CUST_BSFM_M1_WD.adl, SUS_CUST_BSFM_M2_CENTERING.adl, SUS_CUST_BSFM_M3_OPLEV.adl

Other: SUS_CUST_BSFM_ADC_MONITOR.adl: Fixed hardwiring to optic BS (to accomodate BSTST at LHO)

Unfixed: SUS_CUST_BSFM_MAIN_MENU.adl, SUS_CUST_FM_BIO.adl (H2-specific), X1SUS_CUST_BSFM_OVERVIEW.adl (X1-specific)

The changes have been committed. LLO should be able to svn up.

Responding to Daniel's report of issues with the ISS and FSS, I came in this morning to see what's up.

I found the NPRO was in a large relaxation oscillation (frequency about 880 kHz) (see photo below) by displaying the ISS PDA signal at the monitor tee (see photo below) on an oscilloscope.

This was cured by toggling the "Noise Eater" switch (off for a few seconds, then back on) on the front of the Innolight power supply in the PSL rack outside the Laser Area Enclosure (see photos below).

I adjusted the ISS REFSIGNAL to -2.00 V, which gives us about 10% diffracted light (see photo below).

I looked at the FSS OLTF and found the UGF to be about 500 kHz.  I dropped the common gain by 3 dB (from 30 to 27) to give us a bit more gain margin and a little more phase margin.  The UGF is now at about 325 kHz.

The system seems to working properly now.

Looks like the PSL is developing problems. Right now the ref cav doesn't lock anymore. We gave up after about 2 hours. We noticed that the ISS started oscillating about 7h ago. Now, it looks like there might be an interaction between FSS and ISS.

After installing the new filters on ETMY suspension, I took an open loop gain transfer function of the top mass in the longitudinal degree of freedom, with the loop closed, and compared the measurements against the model.

The first pdf attached shows the measurement in blue, and the model in green. Except for the first pitch mode, at around 0.5/0.6Hz, they match really well.

The second pdf attached shows the open loop gain transfer function for different damping configurations that have been used during HIFO-Y commissioning. The old filters mentionned are refering to the one Jeff K. designed to reduce sensor noise contribution to test mass displacement added to the extra boost at .43Hz and .99Hz

The new filters are clearly more stable, providing the same damping at the lowest longitudinal mode than the previous filters with a phase margin of 36 @ 3.54Hz.

Attached is a plot of ETMY and ITMY oplev signal + reflected beam signal while the cavity was locked. The motion @ .43 Hz is still high. Although, looking at the plots from the previous aLog it seems like the ETMY ISI could provide a better isolation, as it did in May. 

Today, while the cavity was locked, and the ISI was in "level 3 isolation" I took a spectra of ETMY M0 L1 and L2 stages in Long and Pitch. 

I plotted the spectra against previous ones with the suspension damped and the chamber under vacuum for the three of them. The comparison shows different configuration of the ISI

1) in blue, ISI damped in may

2) in green ISI isolated in may

3) in red ISI isolated today

Continued assembly of the Manifold Cryopump baffle.

Attached Class B Top Ring to Balancing Fixture.

Started to bend blades -
1. Weight Hanger is not long enough for the amount of weights needed to bend blades (160 lbs), see pic.
2. Screws are not long enough to secure tongue depressor on blade to Bend fixture (currently SCHS #10-24 x 7/8"; looking for SCHS #10-24 x 1". TMS has some at LLO).

Called it a week.

I did cleanup on the HAUX screens on the same lines as in alog 7049 for HTTS.

For all the screens in $(USERAPPS)/sus/common/medm/haux with gedit, I changed link arguments to look like the following:

args="%(read $(USERAPPS)/asc/common/medm/asc$(optic)$(num)_overview_macro.txt),USERAPPS=$(USERAPPS),SITE=$(SITE),site=$(site),IFO=$(IFO),ifo=$(ifo)"

Formerly some of the screens expected $(OPTIC) to be the full optic name, and some used $(OPTIC)$(num), so I changed everything to the latter convention.

Details:

No change:

Basic cleanup: SUS_CUST_HAUX_BIO.adl, SUS_CUST_HAUX_BIO_all.adl, SUS_CUST_HAUX_DACKILL.adl, SUS_CUST_HAUX_DC_ALIGN.adl, SUS_CUST_HAUX_M1_COILOUTF.adl, SUS_CUST_HAUX_M1_DRIVEALIGN.adl, SUS_CUST_HAUX_M1_EUL2OSEM.adl, SUS_CUST_HAUX_M1_LOCK.adl, SUS_CUST_HAUX_M1_OPTICALIGN.adl, SUS_CUST_HAUX_M1_OPTICALIGN.adl, SUS_CUST_HAUX_M1_OSEM_ALIGN.adl, SUS_CUST_HAUX_M1_OSEM_ALIGN.adl, SUS_CUST_HAUX_M1_OSEM_ALIGN_??ZOOM.adl, SUS_CUST_HAUX_M1_OSEMINF.adl, SUS_CUST_HAUX_M1_SENSALIGN.adl, SUS_CUST_HAUX_M1_WD.adl, SUS_CUST_HAUX_M1_WD_ACT_BANDLIM.adl, SUS_CUST_HAUX_M1_WD_OSEMAC_BANDLIM.adl, SUS_CUST_HAUX_MONITOR_OVERVIEW.adl, SUS_CUST_HAUX_MONITOR_OVERVIEW_all.adl, SUS_CUST_HAUX_OPLEVINF.adl, SUS_CUST_HAUX_OPLEVINF1.adl,

Other fixes:

SUS_CUST_HAUX_DAC_MONITOR.adl: I removed display of /cvs/cds/llo/scripts/utilities/nova_logo.gif, which was not only LLO-specific but shouldn't have been in a custom screen. Moved time string into visible area and corrected hardwiring to FEC=10.

SUS_CUST_HAUX_M1_DAMP.adl (and assorted other screens): corrected hardwired FEC.

SUS_CUST_HAUX_M1_DEMOD.adl, SUS_CUST_HAUX_M1_TEST.adl, SUS_CUST_HAUX_M1_DAMP.adl: I got the L1-specific links from various "GUARDIAN SET" buttons pointing to the apparently intended screen, $(USERAPPS)/cds/common/medm/FILTALH.adl, and made the asgs list more standard, but there was a $(channel) argument missing, so I couldn't getting it working fully. It doesn't seem to work at LLO either, so I leave it to the Guardian folks to take further.

SUS_CUST_HAUX_OSC.adl: added $(IFO) $(OPTIC)$(num) string to screen.

Everything has been committed.

WP4034. Dave and Jim.

A third ADC card was installed into the h1oaf0's IO Chassis to support the expansion of the PEM system. The accelerometer channels from the PSL were attached to the second AA chassis.

I changed the h1iopoaf0 models to read the new ADC card. I changed the h1peml0 model to read the new accelerometers. We restarted both models. We found that there is a mismatch between the AA and ADCs for the second and third ADCs, we suspect an internal ribbon-cabling issue. For now we hooked the second ADC to the "third" ADC interface board to get the signals into the DAQ with the correct names for the weekend. We will fix the problem on Monday.

The DAQ was restarted to read the new PEM channels, frame size increased from 388MB to 413MB for a 32 second frame (now 13MB/s).

The corner station pem model has only been upgraded for the accelerometer channels. I will add the other signals on monday.

The DNS servers ns0 and ns1 have been updated to support local lookups of LHO GC and ligo.org addresses.  In other words, lookups for addresses in these domains are answered directly by ns0 and ns1, and do not rely on the LHO GC or ligo.org nameservers to be accessible for recursive lookups.  Any changes or updates to these domains however, are reliant on the GC nameserver being available so that the required zone transfer can take place.

08:00
Laser Safe
Alarms: CDs, and Dust #9

09:00 Continuous dust alarms on DM #9 (HAM2/3). Inform Patrick T.
09:03 Patrick T. move dust monitor #15 to HAM5/6 cleanroom
09:15 Kyle R. install and torque bolts on HAM1 east and west doors
10:00 John W. & Kyle R. close GV-5
10:05 Apollo crew craning ISI install fixtures and BSC repair arm over X-Arm
12:12 Dave B. Recycle H1OAF
12:45 Filiberto C. pulling cables at HAM1, 2, 3
13:45 Cory G. Working on ISC tables in East bay
14:40 John W open GV-5
14:35 Alexa S. to End-Y
15:58 Hugh P. and Dave B. recycle DAC to add HAM ISI channels

Installed the latest version of the HAM-ISI master model. This version features the addition of the ground STS signals as DAQ channels. Those new DAQ cannels will be used for the design of Sensor Correction filters.

HAM2-ISI and HAM3-ISI safe.snap were updated.

HAM-ISIs 2 through 6 were recompiled and restarted.

Isolation loops were turned back on on the IMC ISIs.

DAQ restart followed.

The bad hard drive in slot 6 of cdsfs1 has been replaced, with the new drive being set as a spare in the RAID.

I moved this dust monitor under the clean room over HAM 5 and 6.

Kyle - 
Added and torqued door bolts on HAM 1 East and West doors this morning in order to get doors to seal against their O-rings -> Pumped/vented HAM1/HAM2 annulus volume multiple times -> Helium signal 6.5 x 10-7 torr*L/sec (Fine Test Mode) before Pump/Vents and 4.5 x 10-7 torr*L/sec (Fine Test Mode) after Pump/Vents -> this may or may not be significant

Filiberto, Hugo

The 2 remaining ground STSs were connected to the HAM electronics racks. Signals are broadcasted to the ISI models. HEPI models need to be updated to receive those signals.

The chamber-side testing of HAM6-ISI was performed last week. HAM6-ISI Chamber-Side Testing Report is now available under the DCC.

I did a major cleanup of the Tip-Tilt screens and linked them to the LHO SITEMAP.

I created argument macro files $(USERAPPS)/asc/common/medm/asc???_overview_macro.txt with all the optic-specific arguments (analogous to $(USERAPPS)/sus/common/medm/sus???_overview_macro.txt for SUS). I then went through all the screens in $(USERAPPS)/asc/common/medm/asctt with gedit, changing link arguments to look like the following:

args="%(read $(USERAPPS)/asc/common/medm/asc$(optic)$(num)_overview_macro.txt),USERAPPS=$(USERAPPS),SITE=$(SITE),site=$(site),IFO=$(IFO),ifo=$(ifo)"

Formerly some of the screens expected $(OPTIC) to be the full optic name, and some used $(OPTIC)$(num), so I changed everything to the latter convention.

Details of which files were touched are at end. I want to do one more round of checking for errors, so I haven't yet committed the changes yet.

No change:

ASC_CUST_TIPTILT_DAC_MONITOR.adl, ASC_CUST_TITPTILT_SAFE_SNAP_CMD.adl

Basic updates:

ASC_CUST_TIPTILT_BIO.adl, ASC_CUST_TIPTILT_DC_ALIGN.adl, ASC_CUST_TIPTILT_M1_COILOUTF.adl, ASC_CUST_TIPTILT_M1_DAMP.adl, ASC_CUST_TIPTILT_M1_DRIVEALIGN.adl, ASC_CUST_TIPTILT_M1_EUL2OSEM.adl, ASC_CUST_TIPTILT_M1_LOCK.adl, ASC_CUST_TIPTILT_M1_OPTICALIGN.adl, ASC_CUST_TIPTILT_M1_OSEM2EUL.adl, ASC_CUST_TIPTILT_M1_OSEM_ALIGN.adl, ASC_CUST_TIPTILT_M1_OSEM_ALIGN_counts.adl, ASC_CUST_TIPTILT_M1_OSEM_ALIGN_??ZOOM.adl, ASC_CUST_TIPTILT_M1_OSEMINF.adl, ASC_CUST_TIPTILT_M1_SENSALIGN.adl, ASC_CUST_TIPTILT_M1_WD.adl, ASC_CUST_TIPTILT_M1_WD_ACT_BANDLIM.adl, ASC_CUST_TIPTILT_M1_WD_OSEMAC_BANDLIM.adl, ASC_CUST_TIPTILT_M1_WD_OSEMDC_BANDLIM.adl, ASC_CUST_TIPTILT_MONITOR_OVERVIEW.adl, ASC_CUST_TIPTILT_OPLEVINF.adl, ASC_CUST_TIPTILT_OPLEVINF1.adl, ASC_CUST_TIPTILT_OSC.adl, ASC-TIPTILT_Main.adl, newDisplay.adl

More complicated fixes:

ASC_CUST_TIPTILT_DACKILL.adl: fixed broken link to GDS_TP screen.

Broken - needs redesign:

ASC_CUST_TIPTILT_M1_DEMOD.adl, ASC_CUST_TIPTILT_M1_TEST.adl: need to fix links to $(USERAPPS)/cds/common/medm/FILTALH.adl (2 places)

ASC_CUST_TIPTILT_BIO_all.adl, ASC_CUST_TIPTILT_MONITOR_OVERVIEW_all.adl, ASC_CUST_TIPTILT_OVERVIEW_all.adl: only allows for four (not five) TTs.