On the BSC2 HEPI system, the valve of on actuator V4 was changed on june 25. When trying to identify the source of the problem, the fluid flow was stopped at the problematic actuator. Then, we saw a huge change in the actuator positionning indicating there was an issue with the valve (No drive - flow vs No flow). Yesterday, we stopped the flow on all actuators and looked for large changes (comparing the No drive - flow vs No flow configurations). Some minor changes were seen but nothing is alarming.
The attachment shows the position changes (seen by the IPSs) when stopping/starting the flow. (units 650counts/mil). 

The HEPI and the BSC-ISI models were installed at the end station (EX).

Control room software has been updated to use Ubuntu 12.04 compiled versions.  This affects the following:

awgstream
dataviewer
medm
StripTool
diaggui,
awggui,
diag,
chndump,
ezca*,
foton,
nds_query,
nds2-tunnel,
nds2_channel_source,
root

and libraries fftw, framecpp, libframe, metaio, as well as gds libraries.

In particular, Perl and Python scripts which use gds libraries should be checked for proper functionality.

Please log out, and log back in to ensure that all processes are using the newer libraries before deciding that your software is broken.

Also note that workstation opsws6, opsws8, and operator0 are still running Ubuntu 11.04, and may have difficulty running any new programs.

Attached are plots of dust counts requested from 5 PM July 7 to 5 PM July 8.

Unusually high counts at end Y.

Attached are plots of dust counts requested from 5 PM June July 2 to 5 PM July 3.

Attached are plots of dust counts requested from 5 PM July 1 to 5 PM July 2.

Attached are plots of dust counts requested from 5 PM June 30 to 5 PM July 1.

New damping filters installed on ETMY main chain (version 2.1).

From now on, the gain value will be included in the "rolloff" filter, and the extra "lock" filter is included in "boost". The sign convention is -1 (cf attached picture).

Attached is a spectra of top mass osem sensors in the longitudinal degree of freedom, comparing damped spectra with old set of filters, new one and with the suspension undamped.

Tomorrow, I will take an open loop transfer function and plot it against the model. Also, I will need to update the ODC "M0 damp state" bit status.

A new safe.snap has been commited on the svn.

Filters installed from matlab using autoquack

The filters were installed in foton using the matlab "autoquack" function in the script "prepare_toplevel_damping_filters.m" located in /ligo/svncommon/SusSVN/sus/trunk/QUAD/H1/ETMY/SAGM0/Scripts/

For now the script ONLY works for etmy top level damping filters, but will soon be modified to become more generic.

I created new models for the X-arm: h1susitmx, h1susex, h1susetmx and h1sustmsx, liaising with Vincent to get some SEI IPC signals defined. All four models have been successfully compiled and installed. They will not be started until tomorrow. Details are as follows.

h1susitmx:

• Cloned h1susitmy
• Changed dcuid to 29 (from 30)
• Changed specific_cpu to 2 (from 3)
• Changed comments to give correct wiring diagram, D1100022-v9
• Changed PCIe inputs and associated EPIC outputs to "...ITMX..."
• Changed main QUAD block to "ITMX"
• Left RFM dummied out but changed two error signals to "...ITMX..."
• Copy'n'pasted all OSEM and OPLEV input signals from l1susitmx (and checked against D1100022-v9)
• Corrected comment about analog input order for H1:ITMx (from H2:ITMy)
• Copy'n'pasted all OSEM and OPLEV output signals from l1susitmx (and checked against D1100022-v9)
• Corrected comment about analog output order for H1:ITMx (from H2:ITMy)
• Changed PCIe output stuff to "...ITMX..."
• Grounded TEST1_In and TEST2_In of ITMX block (had been wired to adc_0_29 and adc_0_30)
• Changed DIO_0 and DIO_1 parts to 2 each of CBO_L32_C0 and CBO_H32_C0 per l1susitmx
• Compiled/installed OK.

h1susauxex:

• Cloned h1susauxex
• Changed all EY to EX, ey to ex, TMSY to TMSX, tmsy to tmsx, ETMY to ETMX and etmy to etmx with text editor
• Changed dcuid to 114 (from 116)
• Checked ADC and DAC connections against D1100022-v9
• Compiled/installed OK.

h1susetmx:

• Cloned h1susetmy
• Changed all ETMY to ETMX and all etmy to etmx with text editor
• Changed host to h1susex (from h1susey) and dcuid to 88 (from 98)
• Changed DIO_0 and DIO_1 parts to 2 each of CBO_L32_C0 and CBO_H32_C0 per l1susetmx
• Changed comments to give correct wiring diagram, D1100022-v9
• Checked ADC and DAC connections against D1100022-v9
• Removed receiver for IPC signal H1:LSC-ETMX_L_SUSETMX, which is being generated as a PCIE signal by h1lsc (whereas H1:LSC-ETMY_L_SUSETMY is correctly RFM).
• Compiled/installed OK.

h1sustmsx:

• Cloned h1sustmsy.mdl
• Changed all TMSY to TMSX, tmsy to tmsx, ETMY to ETMX and etmy to etmx with text editor
• Changed host to h1susex (from h1susey) and dcuid to 89 (from 99)
• Changed DIO_0 and DIO_1 parts to 2 each of CBO_L32_C0 and CBO_H32_C0 per l1sustmsx
• Compile failed due to IPC channels not yet created on SEI side - same channels as for h1susetmx.
• Compiled/installed OK.

This puts these Actuators in their final configuration regarding the fluid regime.  Of course there is still attachment & release...after Initial Alignment.

	No issues here.  Waiting for models before turning things on to check out systems--maybe tomorrow.

HIFO-Y crew asked for Isolation loops to be turned ON, on the IMC ISIs.

Those Level 2 Isolation loops were stable, and gave good performnce, in the past, under the same conditions. When turned ON today, they worked as expected on HAM2-ISI. There was however an unstability issue (drive growing exponentially) when turned ON, on HAM3-ISI.

Transfer Functions will be running overnight on HAM3-ISI to assess this issue.

The LLO Y-arm Pcal Periscope was taken out of the pre-alignment cradle and wrapped with two C3 HAM-DOOR fabric, see picture. Tomorrow will be wrapped, crane, and put in a crate ready to be delivered to LLO.

pablo

After correcting the routine (Routine 6 used since OAT) used to build the blend filters, I reloaded the new blend filters for all BSCs (1,2,6). With the new set of blend filters, less L4C noise should be introduced when the T240s are used in the stage 1 super sensors.

Test Stand cables run at EX (Filiberto & Crew)

GV5 closed (Kyle) & Dome Spreader moved over beam tube (Apollo)

TMS SUS crew working on Upper Mass at EX (Jeff & Andres)

Manifold Cryopump Baffle staging (Thomas)

hard power reset of SUS BSC123 to clean up noise from suspected power glitch (Vincent)

HAM6 doors being removed

SEI crew working on HAM6-ISI

New filters installed on ETMy Suspension (Arnaud)

PCal work in H2 PSL continues, no crane work today (Pablo, Colin, Rick)

2.8 x 10-7 torr*L/sec before opening GV5 -> 1.8 x 10-7 torr*L/sec 15 mins after GV5 open

Both cleanings at HAM5/6 completed before lunch. Door removal started after lunch. North door removed first and particle count taken. Cleanroom moved to the north. South door removed and particle count taken. Soft covers on both doors.

Attached is a comparison between the measured and modeled open loop of the control applied to the top mass of ETMY in long. The configuration during the measurement was similar as the one took previously (cf aLog 6969), with the damping/filter gain set to 3 instead of 1 for L (config used for running the interferometer). Once again the measurement matches the model, and surprisingly, even with a phase margin of 13º, the system stayed stable for days.

Now that we trust our model, the 2.1 filters will be installed today on ETMY.

8:50 Pablo and Colin to H2 PSL laser enclosure
Corey informed me that he, Virginio and Keita would be working on and off in the end X transmon lab
10:00 Michael R. to H2 PSL laser enclosure
10:54 electric man-lift pickup
well sampling
CP6 filled
Dave rebooted the DAQ for Vincent
1:29 Pablo, Colin, Michael R. and Rick going into H2 PSL laser enclosure
Cyrus took down a network switch, which took down the H1 PSL Beckhoff, H1 PSL video cameras and communication to the dust monitor in the diode room. Switch was rebooted and restored.
all left the H2 PSL laser enclosure