Weekly Report for Week Ending August 30, 2007

LSC	Administration	Hanford Observatory	Livingston Observatory
Optical & Mechanical	Controls and Data Systems	40 Meter Facility	TNI
LASTI	CIT Science Group	Laboratory Computing	Adv. LIGO Development

Past Weekly Reports

Weekly Report Highlights

LSC Issues (Reitze)

LIGO Laboratory Administration (Lindquist)

STATUS OF LSC MOUs (Lloyd)

MOUs approved this reporting period and signed off by the LSC Spokesperson and the LIGO Laboratory Director are:

MOU	Attachments
Embry-Riddle University	DAT, OPT, SUS, Z
Louisiana Tech University	DAT, OPS, OUT, Z

These will be posted and submitted to the DCC.

FINANCIAL SYSTEMS (Funaro, Brambila, Kaufman)

>From: "Funaro, Catherine" <Catherine.Funaro@caltech.edu>

• For ACCOUNTS PAYABLE HISTORY Press Here.

>From: "Brambila, Ruth" <Ruth.Brambila@caltech.edu>

• Pulled and made copies of all the subcontracts and purchase orders that were included in the list for potential review by the NSF TBSR team.  Prepared the stack for easy access on files that potentially would be reviewed or have inquiries.
• Made copies of the files requested by NSF following the review, and submitted the copies to Monica for electronic submission to NSF.  Responded to Monica's questions on orders.
• Transferred funds on the MIT order as requested.
• Working on the order for Wenzel, which is pending Property's approval before it can be issued.
• Completed change order modifications on subcontracts that were missing documents.

>From: Florence Kaufman <fkaufman>

• Nothing Significant to report.  The next Executive Committee review of Operations Financial Status is scheduled for Monday, September 10.
• Financial reports can be found at: http://docuserv.ligo.caltech.edu/~fireport. (For passwords contact Florence)

SUBCONTRACTS MANAGEMENT (Jasnow, Salone)

>From: Ed Jasnow <jasnow@ligo.caltech.edu>

• Ed Jasnow is working with Dick Seligman, Tina Lowenthal, Monica Marquez, and Ann Margaret Chrisney to wrap up some residual items from the TBSR for Kristin Spencer and Teresa Pierce.  Dick Seligman will prepare the response for Caltech by Friday, August 31.
• We are awaiting the proposal from HPD for the third contract related to the HAM seismic isolation system.  This is contract which encompasses much of the test and assembly phase.

PROPOSALS and REPORTS (Lindquist)

Buttoning up the loose ends of the proposal for continuing operations (FY 2009 – FY 2013).  A draft of the proposal budgets has been provided to the Office of Sponsored Research.  We expect to have the text assembled this week.  Dave Beckett is working on this final pass.

Have prepared a draft Annual report for current Operations.  Initial review has been helpful. Will be preparing copy for submittal next week.

The LIGO Visitors program is officially over as of July 31, 2007 (subsequent visitors are covered by Operations accounts), and a Final Report must be prepared for that Grant.  Stan Whitcomb has agreed to draft the report.

It is time to prepare the monthly NSF report.  I will send out a reminder.

We must next begin iterating the budgets for Operations in FY 2008.

The NSF is adding to our load with a request for a Budget Form 1030 for FY 2008 by September 30, but relative to all the other stuff, I think we can handle this one!

CHANGE CONTROL/CONTINGENCY MANAGEMENT (Lindquist)

• CR-070007 requests funding to cover increased design and fabrication costs for SEI HAM Prototypes. Need to first perform an assessment of year-to-date budget and wish list coverage.

HUMAN RESOURCES (Akutagawa)

>From: Cindy Akutagawa <cindy@ligo.caltech.edu>

• The next Staffing Committee meeting is scheduled for Monday, October 8.
• A Staffing Committee meeting was held on Thursday, August 23.  The minutes and action items from the meeting are in progress and when completed will be posted on the SC web page.
• All files for the Staffing Committee are up-to-date and posted on the SC web page
• Prepared numerous appointment and reappointment memos for various Visitors and Postdocs.

Quality/Safety (Tyler)

>From: Bill Tyler tyler@ligo.caltech.edu

During this week, completed the annual LHO Safety Audit/Review.

AL comment: The LHO reivew was successful and the LHO staff are to be commended for their attention to safety.

The review team noted an increased problem with poor housekeeping by visitors failure to dismantle and properly store equipment used for "temporary" test/diagnostic "setups".  This lack of action by the visitors often results in a "spill-over" impact on the Observatory staff that to have to dismantle, remove and store the equipment.

The review included significant discussions regarding ways to ensure laser safety with planning for Enhanced and Advanced LIGO.

Laser safety consultant Ken Barat also participated in the LHO review and presented an informative program of laser accidents and lessons-learned to the LHO staff.

The audit team is also concerned about the impact of the additional AdL and Enhanced LIGO work requested of the LHO staff.  There appears to be a need for improved scheduling and coordination to avoid significant disruption of the on-going LHO activities.  Assigning of work priorities should also be considered.

LIGO Hanford Observatory (LHO) and Interferometer Operations (Raab)

Summary of S5 Activities at LIGO Hanford Observatory  (compiled by M. Landry)

Strong performance on both interferometers continued, with H1 logging ~16Mpc with a 93% duty cycle and H2 ~7Mpc 92% of the time.

Some highlights from the elog are below:

• summaries: Tuesday maintenance, latest range & duty cycle compilation
• backscatter was found to be worst near cryopumps and the Y-manifold. See the link for a backscatter map
• a broad peak was observed moving in the H2 spectrum

Outreach

LHO hosted nine teachers from across Washington for a workshop on 8/13 and 8/14 dealing with the I2U2 software that allows teachers and students to view a selection of LIGO PEM channels over the Web. The teachers learned how to use the software and planned classroom activities to incorporate its use with students.

LIGO Livingston Observatory (LLO) and Interferometer Operations (Giaime)

LIGO computing and network security (Roddy)
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Reported under General Computing, see below

General computing and LDAS admin (Giardina)
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Reported under General Computing, see below

Reported under LDAS System Administration, see below

Data analysis & computing (Yakushin)
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Storage/Condor/LDAS admin:
Reported under LDAS System Administration, see below

Data analysis:
Reported under Data Analysis activities, see below

Mechanical and Optical Systems (Coyne)

See Advanced LIGO

Controls and Data Systems (Bork)

See Advanced LIGO

40-Meter Interferometer (Weinstein)

• Edward is finishing up his work on learning to use the new FTIR machine and develop a library of spectra for common contaminants, and is writing up his final paper. He and Bob are preparing to cross-calibrate with outgassing RGA spectra.
• Sonia is finishing up her work on optimizing our suspended optics controllers, and is writing up her final paper. All ten suspended optics have diagonalized input matrices. Most show great improvement over the previous diagonalization settings, although ETMX and MC2 not as good as the others. She has completed the optimization of the damping gains on MC1, MC2, MC3, by minimizing the rms of MCL.
• Keita, along with Rana and Rupal, have been searching for the origin of RFAM at the double-demod frequencies of 132 and 199 MHz, which are causing large offsets at the double-demod photodiodes, preventing them from being used to lock the dual-recycled interferometer. Keita observed the RFAM at MC transmitted port using a broadband-modified RFPD, and initially saw no evidence for it on the beam input to the MC.
• This led to much speculation about how the MC could generate such large RFAM. Keita and Andrey measured the length of the MC using the 166 MHz sidebands, and found it to be 4 kHz off, or 300 um too long. They adjusted the RF frequencies to get it centered on the MC length. It didn't help. Nothing else Keita tried, including rotating the polarization, seemed to help reduce the RFAM.
• Finally, Keita checked the RFAM at MC reflected port with the MC unlocked, and found that the RFAM was on the input light as well. So the problem isn't the MC, and Keita is going back to the usual suspect: the Mach Zehnder.
• Rana did some housecleaning, clearing out old PEM equipment (magnetometers, seismometers) that we weren't using (or even aware of).
• Steve did some housecleaning, clearing out old computers and monitors.
• Rob and Tobin are at Burning

Thermal Noise Interferometer -- TNI (Black)

LASTI (Mittleman)

CIT Science Group (Weinstein)

____________________________________________

Kent Blackburn for the Grid Research Team:

GRID APPLICATION DEVELOPMENT:

• Write agenda for weekly LIGO-Pegasus telecon.
• Attend weekly LIGO-Pegasus, DASWG and OSG-USERS telecon.
• Monitor test run Number III:
  • Run on about 20 sites
  • Max No running jobs: 807
  • Max No of idling jobs 1889
• Open GOC tickets: sites that claim to support LIGO but are not:
  • FIU_PG
  • GRASE-BINGHAMTON
  • HAMPTONU
  • MCGILL_HEP
  • NERSC-Davinci
  • OU_OCHEP_SWT2
• Add 4 new sites to sites.xml:
  • ORNL_NSTG
  • Purdue_RCAC
  • GLOW
  • GLOW_CMS
• Ran on 4 new sites, jobs failed at all 4.
• Run Number IV -- weekend run, no improvement in total number of running jobs.
• Run Number V -- weekend run with job submission staggered, no improvement inn number of running jobs.
• Trouble shooting gaps in data, looks like this has been traced to a bug in LAL code.
• Still trouble shooting gridftp error at PSU and UWM sdevelop shell script for remote WF submission and monitoring (in progress).
• Finally at end of last week was able to achieve the 1000 or greater concurrent running binary inspiral jobs on the OSG. Actually achieve 4577 jobs running at the same time before the load on the submit host exceeded its resources and crashed.

OSG INTEGRATION AND VALIDATION TESTBED ACTIVITIES:

• Attended DASWG, OSG VTB, ITB Install Fest Telecons.
• The wn-client on osg-vtb is not functioning, found installation mistakes and fixed by reinstalling. Validated against LIGO workflow.
• Investigate osg-itb-se condor submit machine crashes, the last status with 1207 idle jobs and 4577 running jobs, too large of a job load on osg-itb-se server condor fail resume jobs can not be deleted by condor_rm(make server into another crash in 10 minutes after reboot), need to boot server into single user mode and manually delete fail jobs from the spool directory.
• Install the latest osg 0.7.0 release on the osg-itb server.
• Validate with SiteVerify, VORS, BDII, ReSS, Gratia, WSGram, GUMS, Syslog-ng, RSVProbes, RSVSys table.
• Read OSG client document.
• Installed OSG:client on osg-vtb and test the functionality against the validation table.
• Reported /usr/local/client/glite/etc/vomses mismatch the LIGO VOMS server DN and open a ticket with GOC.
• Informed the missing ITB:client in the cache being fix, and being asked to install the ITB:client.
• Installed ITB:client on the osg-vtb, validate client package functionality against the validation table, find out that this version (vdt 1.8.0f) need to fix the voms file to make voms-proxy-init to work (delete all the "32" at the end of each line).
• Tried out Ted suggestion to the gridftp door batch file, gsiftp -> dcache gsiftp/srm problem still exists with the suggested changes.

OSG MANAGEMENT:

• Reported success at achieving 1000 simultaneous binary inspiral jobs on the OSG (and the fact that we bet this milestone by a factor of 4.6) to the OSG Executive Director and the OSG Extensions Coordinator that are responsible for signing off on completion. Recieved congratulations back from OSG Director and will discuss at next Executive Team Meeting.
• Still awaiting official sign-off.
• Worked with OSG Security Officer on language in agreements for barring users, VOs and sites.
• Worked with OSG Security Officer on language in agreements for limiting the trusted CAs at an OSG site beyond what is sanctioned by the OSG.
• Worked with iSGTW Editor and OSG Director, Resource Managers and Executive Associate on language regarding protection of private information collected for use in distributing the iSGTW publications.
• Reviewed and asked to present on Year 1 Metrics for the OSG.
• Reviewed DOE Nuclear Physics Presentation on the benefits of OSG to that community.
• Attended full day OSG Council Meeting.
• Most of effort this past week went into chairing AdvLIGO CDS Review.

_____________________

Gregory Mendell:

• Working with Berit Behnke, visiting LHO from AEI, we have checked into cvs, under lalapps/src/pulsar/fscan, updates to the fscan code.  We hope to run some fscans looking for lines in the data using the improved code soon.

_____________________

Anand Sengupta:

• Last week, my activities mainly revolved around the S5 High Mass Inspiral Search - we arrived at a proposed chisq cut based on injections in S5 playground data covering a wide variety of waveforms including spinning waveforms. With this cut in place, we are now running the second stage of the pipeline again to look at the r^2 veto.
• Also, I have spent some time to write and generate plots for the e-thinca paper.

Laboratory Computing (Anderson)

 No report received

LDAS Software Systems (Maros)

LDAS System Administration (Anderson)

General Computing (Wallace)

Advanced LIGO and Supporting R&D (Shoemaker)

Advanced LIGO Systems

Modeling and Simulation

From: Sanichiro Yoshida <syoshida@selu.edu>

Here is our group's report that I put together for Hiro.

Modeling and simulation (Sany Yoshida)

• Implemented radiation pressure in our AdvLIGO Mode Cleaner e2e model. At this pint our model handles the position DOF dynamics only. The radiation pressure forces acting on the three MC mirrors are computed from the intra-cavity power and fed back to each mirrors center of mass. The result of computation indicates that the transmitted power certainly fluctuates when the radiation pressure effect is included. More quantitative analysis is being made. This result was discussed in the e2e weekly telecon (see belwo).

e2e weekly meeting

Attendees: Hiro Yamamoto, Mark Barton, Osamu Miyakawa, Richard Williams (SLU undergraduate student) and Sany Yoshida

• Sany reported on the progress on his e2e model of the MC triple suspension and radiation pressure modeling (for the Advanced LIGO Mode Cleaner e2e modeling). The new e2e code that he used for this analysis uses the recently corrected version of Mark Barton's triple suspension (the previous version had an error in the optic Yaw dynamics). E2e calculation with the new triple suspension model shows a factor of five lower position to yaw coupling, and Mark confirmed that this change was reasonable. Osamu pointed out that the computed transmitted power of the Mode Cleaner is higher when the radiation pressure effect is included and that that should not happen. Sany will look into the problem. 

Static IFO simulation (Hiro)

Coupled cavity analysis summary is as follows.

26cm MMT3 6cm beam on ITM Cavity formed by ITMY and signal recycling loss on MMT3= 330 ppm

26cm MMT3 6cm beam on ITM Cavity formed by ITMX and signal recycling loss on MMT3= 600 ppm

28cm MMT3 6cm beam on ITM Cavity formed by ITMY and signal recycling loss on MMT3= 140 ppm

26cm MMT3 5.5cm beam on ITM Cavity formed by ITMY and signal recycling loss on MMT3 = 47 ppm

26cm MMT3 5.5cm beam on ITM Cavity formed by ITMX and signal recycling loss on MMT3 = 60 ppm

If we use an asymmetric arm cavity with smaller beam size on ITM, the loss on MMT3 becomes acceptable. More optimization study is going on.

Modeler : e2e simulation engine and ALFI : e2e front end (Hiro, Bruce, Melody)

(Hiro)

• e2e-4.-0.1 was released after Sany Yodahisa found that some key updates were not included in 4.0.0.
• UserDefinePrimitive documentation is being finalized.

(Melody Araya)

• ALFI - Worked on a draft for the Use of User-Defined Primitives in ALFI.
• Modeler - Merged the source code from 3.2.4 with the code in 4.0.0 and
     built the e2e-4.0.1 tarball.
• Threading Building Blocks - Found out how to increase the system stacksize in order to run
  TBB with 1024x1024 matrices.  Tried fine-tuning the grainsize to improve the performance of the program with large matrices.

Mechanical Simulation for advanced LIGO (Sany and SLU team)

• Richard Williams created a state space matrix based on Mark Barton's quad-suspension model with the violin effect included. He has started to build an e2e code to include the state space matrix.

CDS Prestabilized Laser

From: Peter King <pking@ligo.caltech.edu>

AdLIGO PSL

• Numbers for the heat load have been worked out as best as I can estimate.  Maik has gone over the numbers and pointed out that I left out a term involving the efficiency of converting pump light to laser light. That has been rectified.  These numbers go towards working out the cooling requirements and air-handling requirements for the laser diode enclosure.
• I have been trying to debug an amplifier circuit.  There is a large, about 0.5 V, offset in the output when things are adjusted.  Otherwise an oscillation is present in the output when there is no offset.
• Maik (LZH) has circulated a list outlining hardware changes being contemplated to the 35-W front end.

Control and Data Systems

No report

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For additional information about this report, contact Albert Lazzarini or Phil Lindquist