Routine site inspection revealed that water is accumulating at the LN2 LLCV actuator bowl drain (point-of-use) for CP1 and CP2 -> Found that the corner station instrument air drying tower was working but that the tower regeneration purge rate valve was adjusted to ~15 psi (should be ~65 psi) -> adjusted and opened bowl drains, let air flow until dry. Will check tomorrow. 

 I torque the ITMY dog clamp bolts to 25 FtLb, as per D0901140. 

   We noise tested the 24 untested AOSEMs returned from LLO. Seven AOSEMs had lose circuit boards (positioning setscrews were backed off), which were corrected and tuned to >25k open light counts. The remaining 17 AOSEMs have open light counts over 20k counts. These will be tuned to >25k open light counts over the next few days. The open light tuning results will be sent to Stuart Aston at LLO. 

   The noise testing results are posted on the DCC under E1101030, with the individual plots found in S1203453 through S1203476.      

Thomas and I started a 2-day measurement at EY to evaluate the drift of the optical levers. For this long measurement, HEPI and ISI are controlled (no sensor correction) and SUS is damped.
If you plan to work at EY, please stop by the control room to inform the operator of the day. Your activity might trip the ISI-HEPI watchdogs and ruin the long measurement.

WP3414 WP3396

The IOP watchdog system between SUS HAM2a, SUS HAM34 and SEI HAM23 was partially re-enabled.

In the new scheme, HAM2A SUS cannot trip SEI HAM23, but SUS HAM34 (actually only the HAM3 SUS of MC2,PR2) can trip SEI HAM23.

Note that if MC2 or PR2 trip SEI HAM23, then all HAM2 suspensions lose their HPI/ISI drives.

This work required restart of h1sush34, h1seih23 and H1 DAQ. For testing I WD tripped MC2, PR2 and MC1 (to prove HAM2 will not trip SEI).

WD MEDM screen was changed to show the new layout.

All tests passed. This closes out the two workpermits.

WP3493

The IOP SUS watchdog system between FMY,ITMY and SEI BSC8 was disabled. This prevents a SUS test on one test stand from tripping the ISI test on the other test stand. This is a transition workpermit which was closed. If in the future an ISI/SUS stack is constructed on the test stand the watchdog can be re-activated.

Re-energized the following devices at the Y end station which were turned off on Friday, Oct. 5, 2012 for software debugging:

H2-SEI-C1 rack - (3) coil drivers, reset overtemp condition after powerup.
H2-TCS-C1 rack - Ring heater driver, A/I filter box.
H2-SUS-C1 rack - (3) A/I filter boxes.

Attached are plots of dust counts > .3 microns and > .5 microns in particles per cubic foot. The data was taken from approximately 6 AM to 7 PM.

Andres R, Gerardo2 M. and Jeff B.

   Today we moved the ITMY from its H2 one arm test position to its H1-BSC1 position. No problems were encountered during the move or with mounting the QUAD to the BSC.

During any spare moments last week, whilst waiting for test results to come in, I spent time configuring the digital system for the remaining suspension models that are already up and running.

- Infrastructure created for BURT snapshot files at, for example, "opt/rtcds/userapps/release/sus/h1/burtfiles/sr2".

- BURT infrastructure put under SUS svn control.

- Set-up for M1, M2 and M3 stages nominal Watchdog limits, i.e. sensor DC monitors of -30000 to +30000, sensor AC rms monitors of +8000, actuator AC rms monitors of +25000. Also, switched in required "dcBandLim" and "acBandLim" filter banks.

- Configured OSEM INPUT FILTERS with default gains (+1) and offsets (-15000), for M1, M2 and M3 stages. Also, switched in required "deWhite" filter banks.

- Populated OSEM2EUL matrix with values generated with "make_sushsts_projections.m" and written using "fill_matrix_values.m" scripts (see LLO aLOG entry 2508 for an example).

- Populated EUL2OSEM matrix with values generated as above, for M1, M2 and M3 stages. 

- Verified correct sign convention used in both OSEM2EUL and EUL2OSEM matrices (as detailed in LHO aLOG entry 4350).

- Populated SENSALIGN matrix using Matlab blkdiag(1,1,1,1,1,1) function and "fill_matrix_values.m" script, for M1, M2 and M3 stages.

- Configured DAMP filter gains using default values for SR2 + PRM (HSTSs), and PR3 (HLTS). Also, switched in required filter banks.

- Configured DRIVEALIGN matrix, manually turning off non-diagonal elements, for M1, M2 and M3 stages.

- Configured COIL OUTPUT FILTERS gains (signs) for M1, M2 and M3 stages. n.b. the M1-SD BOSEM gain is switched to (+1) for PR3 (HLTS). Also, switched in required filter banks. n.b. updated compensation filters have already installed for all HSTS and HLTS suspensions (see LHO aLOG entry 4359). 

- Turned ON damping loops for each DOF, but turned OFF M1, M2, and M3 Master Switches, so that new SAFE BURT snapshot could be taken for SR2, PR3 and PRM.

- Moved BURT snapshots from "target" directory, to "userapps" directory i.e. from "opt/rtcds/lho/h1/target/h1sussr2/h1sussr2epics/" to directory under sus svn control "opt/rtcds/userapps/release/sus/h1/burtfiles/sr2".

- Committed new BURT snapshots to sus svn, "h1sussr2_safe.snap", "h1suspr3_safe.snap" and "h1susprm_safe.snap".

These digital systems are now ready to receive the next suspensions for Phase 2a testing chamber-side, most likely this will be PR3 (HLTS). The final piece of the puzzle will be to input/transfer OSEM gains and offsets.

While H2 DAQ was down today I copied the complete set of slow controls PEM minute trend data from H2 DAQ to H1 DAQ using the same procedure followed yesterday for VE and FMCS data.

The H1 DAQ was restarted, it is now serving the full look back of DUST and WEATHER data.

I put all the H1 and H2 DAQ hand edited configuration files into the cds_user_apps SVN repository under trunk/cds/h[1,2]/daqfiles

Files put under SVN

• all hand edited INI files (e.g. non-RCG generated files)
• data concentrator MASTER
• all DAQDRC files for dc, fw and nds.

Attached are plots of dust counts > .3 microns and > .5 microns in particles per cubic foot. The data was taken from approximately 6 AM to 6 PM. Also attached are plots of the modes to help show when the data was valid. The large gap is from when the H2 DAQ was down.

Ref WP#3489

Prior to this work, EY H2 Coil drivers were disabled to prevent any damage occuring to ETMY and TMSY (Vern Sandberg and Jim Batch).

Various H2 front ends were rebooted by Alex. The failure of all front end data as detected by the DAQ data concentrator was eventually reproduced, along with the spontaneous crash of h2dc0 when the front end recovered.

Alex spent most of the day with the H2 DAQ down while he tried various upgrades to the MX_STREAMS drivers and code on the concentrator. 

By 4pm the H2 DAQ was returned to operational. At around the same time the H1 DAQ was restarted with a complete set of VACUUM and FMCS channels, so that when the H2 DAQ is taken down over the weekend these channels will continue to be trended.

Alex will continue this work through to Monday. The aim is that the bug whereby a single front end restart/reboot  invalidates all front ends data for many minutes at a time will be resolved.

Ref WP#3492

Due to today's H2 DAQ work, I reconfigured H1 DAQ to also acquire the VACUUM and FMCS EPICS channels. The process was:

h2ldasgw0 and h2ldasgw1; stop acquiring data, tar up the raw minute files for all the VE and FMCS channels. These tar files were 62GB and 48GB respectively, and have 277 and 382 number of channels respectively.

compess the VE and FMCS tar files, size reduced to 18GB and 8GB respectively.

copy the h2ldasgw0 files to h1ldasgw0, copy the h2ldasgw1 files to h1ldasgw1. Uncompress and install the VE and FMCS files into the minute_raw trends dirctory on h1ldasgw[0,1]

Reconfigure h1fw0 and h1fw1 to acquire VE and FMCS files. The H0EDCU_VE.ini and H0EDCU_FMCS.ini files were copied from H2 DAQ to H1 DAQ.

The H1 DAQ was restarted. VE and FMCS data in full frames, second frames and minute frames started from scratch. The raw minute trend frames were then appended with the latest data, and all previous minute trends are available back to the VE and FMCS epoch.

In addition, the H1 TIMING EPICS channels from the h1ecatc0 IOC were added to the frame. These channels cover the status of the H1 Timing Master in the MSR. The new channels have the prefix H1:CDS-TIMING_

The new ini file is called H1EDCU_TIMING.ini

In prep for a possible move next week, we've installed the cookie cutter, cleared a path on the ISI table, removed a bunch of the QUAD dog clamps, and disconnected all of the QUAD cables such that the ITMy is ready to swing 90deg into it's new position.

After 2 days and some heroic efforts by a few guys, whose identities shall remain incognito, the formerly-known-as-FMy full suspension has been removed from under the test stand and parked just outside of it.  It is strapped to a leg of the test stand now and will be relocated to the BSC2 ISI in another week or after the ISI finishes a few rounds of testing.  The maneuver was particularly difficult since the QUAD was still under the ISI, taking up a lot of real estate.

HughR, GregG, JimW

 Between yesterday afternoon and today, the stage 2 of this assembly had its cap sensors aligned, gapped, then the stage was floated and leveled. After more cps fine tuning, a first pass at cable routing and a round of locker tuning I think stage 2 is pretty well dialed. On Monday we will do more of the same on stage 1, then one more pass at cabling. After that, this ISI should be ready for its first round of testing.

After HAM1 needed a large  movement  to rectify some measurement issues the springs had come into hard contact with the side of the housing collar. I re-centered the springs and loaded the weight back to the previous values. This brought the support tubes to +- 25 thousandths of an inch. During the process of bringing the support tubes to nominal one of the springs started to bind, and after removing the nut one could see several demolished threads. Tyler G. expertly repaired them and I replaced the spring. 

The support tubes are now sitting within +- 5 thousandths although with the amount of activity around the dial indicators some of those values may be adulterated. After I locked the HEPI feet down I re-zeroed the dial indicators and hopefully placed them in better positions for when IAS can shoot the table.

Mark B.

Resuming work on BSFM02. Will take damped and undamped TFs and damped and undamped spectra.