Weekly Report for Week Ending July 12, 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

Special Announcements:

Weekly Report Highlights

LSC Issues (Reitze)

LIGO Laboratory Administration (Lindquist)

DOCUMENT CONTROL CENTER (Turner, Mak)

>From: Cleveland Mak <mak_c@ligo.caltech.edu>

• Processed documents for the Amaldi Conference.
• Finalizing the last details of the shipment of the Scatterometer from Stanford.
• Completed the necessary paperwork for shipment of the Seismic Attenuation Unit to Virgo.
• Packaged and shipped laptops/projectors to MIT for the upcoming LSC/Virgo Meeting.
• Prepared and made arrangements for shipment of LASTI Reaction Mass to MIT.
• Assisting with the process of getting a laser from Germany through customs procedures.  Began preparing forms so we don't have to pay a duty tax on the importation of this laser.
• Scanning Update - Progress continues on the scanning of all non-electronic "G" category documents.

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>

• Going through and checking active encumbrances to remove funds or to request for the orders to be extended or closed.  There are two lists of encumbrances that have been submitted for me to go through.  Both lists are rather long.
• Responded the auditor's request on MIT and provided the requested information.  Provided purchase order files to the auditors as requested.
• Received the last document for HPD and routed the package for review and approval.
• Completed the routing of the signatures for the mods to Triad and Heraeus Optics.
• Continue chasing Non-Comps and supporting documents for Techmart requisitions that are submitted without electronic attachments.
• Provided assistance on inquiries from the Hotline pertaining to an outstanding LIGO invoice that is aged several months.
• Have three change orders to subcontracts for invoice attached orders that do not include price reasonableness.  One order is also expired.

>From: Florence Kaufman <fkaufman>

• Completed and sent out all monthly reports for June.
• Prepared 5 Intra Award Cost Transfers to move expenditures that had been charged to existing accounts while waiting for fabrication account to be set up.
• Contacted Sponsored Research to try to find out why there has been a delay in setting up several fabrication accounts that had been requested.
• Prepared a schedule of potential budget recapture for unfilled positions for the third quarter of fiscal year 2007.
• Financial reports can be found at: http://docuserv.ligo.caltech.edu/~fireport. (For passwords contact Florence)

SUBCONTRACTS MANAGEMENT (Jasnow, Salone)

>From: Gina Salone <gsalone@ligo.caltech.edu>

• Gina Salone is working with the University of Glasgow to try and finalize the arrangements for Calum Torrie to work at Caltech under an arrangement whereby LIGO will pay the University for a portion of his time.

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

• Ed Jasnow and Peter King are working with Ann Bussone, of the Office of General Counsel, to assist the German laser manufacturer, Laser Zentrum, in filling out a form required by the FDA before a laser can enter the U.S.  The laser is one of those being donated by the Max Planck Institute, and is now at LAX awaiting completion of this form. Ms. Bussone will be working with outside counsel and our customs broker to resolve this issue.

PROPOSALS and REPORTS (Lindquist)

We are entering the last few weeks scheduled for preparation of the Continuing Operations Budgets and Proposal (FY 2009 through FY 2013).  Everyone’s continued support will be appreciated.  I will be distributing some additional requests shortly.

The monthly report to the NSF is due this week.  I have most of the needed contributions.

CHANGE CONTROL/CONTINGENCY MANAGEMENT (Lindquist)

• There are no open change requests.

HUMAN RESOURCES (Akutagawa)

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

• The next Staffing Committee meeting is scheduled for July 16.
• A Staffing Committee meeting was held on June 18th. The minutes and action items have been posted on the SC web page.  All files for the Staffing Committee are up-to-date and posted on the SC web page.

Quality/Safety (Tyler)

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

 No report.

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

Summary of S5 Activities at LIGO Hanford Observatory (compiled by K. Kawabe)

The duty cycle of H1 for the last two weeks (from Thu. 28/Jun/2007 to Wed. 11/Jul/2007) was 82 percent, with typical 15.5 Mpc range. For H2 it was 78.9 percent. The inspiral range of H2 has been hovering low anywhere between 2.5 and 6 Mpc, but it finally got back to 7Mpc later this week.

Summaries: Range and Duty Cycle update. Tuesday maintenance summary.

Highlights from the LHO elog:

• Two H1 WFS2 problems within one week. One was related to the offset of WFS2 demod board. The offset wondered around by a big amount, which seemed like the problem of old trimmer pot, and they swapped the board eventually.
• There was another WFS2 problem hitting H1 on Friday night/ Saturday morning. It was the problem of whitening board this time, and the board was swapped on Saturday.
• Some analysis suggested that H2 ETM bias modules look suspicious.
• Later it was confirmed that two of four H2 ETMY bias modules are oscillating at 30 Mhz. It is not clear if this was the main source of the huge noise we've been suffering from in the past month, and it's still not clear if this is what is limiting H2's binary range to 7Mpc instead of 7.5 now.
• We seemed to have finally caught another suspicious intermittent noise source red-handed, H2 RM UL coil, that we've been chasing for about 1.5 months since May 23. It seems that it was either bad connection of the cable or the back plane of the RM bias module.

Outreach:

• LHO partnered with WSU GEAR UP on a two-week summer experience for 20 Pioneer Middle School students (Walla Walla) between 6/18/2007 and 6/29/2007. The Space and Technology Boot Camp occurred at Pioneer School and included two visits to LHO.
• "The nature of Scientific Inquiry", a WSU-TC graduate course for teachers hosted by LHO, began its two-week run on 7/9. This week over 50% of the LHO staff have participated in class activities such as job shadows and interviews

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

Reported under General Computing, see below

General computing and LDAS admin (Giardina)
---------------------------------------------------------------------
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)

• We gave tours of the lab to 45 HS students from the Summer Science Program in Ojai (last week), and a dozen exchange students from Zambia (this week).
• Last week, Rob took spectra of the RF readout frequency noise coupling, before and after the drag wiping of the ETMs. As expected, the frequency noise coupling has decreased significantly.
• This week, Rob is at Amaldi, giving talks on DC readout at the 40m and also on the stochastic radiometer search.
• We are planning to vent once again, next week (Wednesday), to drag-wipe ITMX. We may also try to drag-wipe ITMY, but it is difficult to reach. Rana has a plan for moving ITMY within reach using teflon skis.
• We have a new and improved DCPD in-vac preamp, tested by Ben and soon-to-be tested again by Tobin. We could install it during next week's vent, but we'll probably wait till Rob gets back from Amaldi.
• Our framebuilder, fb40m, is dying; when it crashes, we lose data. Alex is working on diagnosing and fixing the problem. Sonia needs the DAQ to take data for her suspension optimization work.
• Sonia found that she couldn't optimize the damping on the suspended optics without first diagonalizing the OSEM input matrix, so she's working on that. She's writing a matlab script to fully automate the process.
• Alice has completed a noise analysis of her new RFPD preamp design, and finds improved SNR with respect to previous designs. She is getting ready to build a prototype circuit and test it with Jenne's AM laser.
• Josh has been frame-grabbing images of the test mass optics illuminated by the laser, and is analyzing them.
• Josh is developing an automated mode scanning system, and is testing it out on the PMC. Next, the OMC.
• Keenan is continuing his analysis of gravity gradient contributions to the LIGO noise. The effect of BSC chamber shaking is negligible. Next is the concrete slab.
• Jamie Rollins is visiting, and is currently working on photodiode characterization.

 

Thermal Noise Interferometer (Black)

LASTI (Mittleman)

ISI

• Myron, Hugh, Cory and Stephanie have been working on assembling the BSC-ISI. Stage 0 has been assembled and is sitting on the test stand.  The second stage is currently being built. There have been a few problems associated with the cleaning. One of the stage 0 plates is warped; it mostly flattened out after it was assembled. The second problem is that the cleaning was not done properly on all of the faces of the plates this is being remedied with hand cleaning followed by FTIR testing.

Quad

• Ian and Graham are here from RAL and have started to assemble the noise prototype quadruple pendulum.

 

CIT Science Group (Weinstein)

________________

Kent Blackburn, last week:

GRID APPLICATION DEVELOPMENT

• Write monthly OSG report
• Write agenda for weekly LIGO-Pegasus telecon
• Attend weekly LIGO-Pegasus and DASWG telecon
• Request mor disk space at FNAL_FERMIGRID
• Run  LIGO WFs with V2 data on OSG sites
• Run V3 WFs on ldas-grid
• Prepare for V3 WF runs on OSG:
  • change .ini file settings
  • generate .dax file
  • convert .dax to .dag using Pegasus
• Start V3 WF runs on OSG sites
• Prepare OSG_USER meeting presentation

GRID INTEGRATION TESTBED DEVELOPMENT

• Attend PEGASUS telecon
• Attend OSG VTB telecon
• Attend OSG ITB telecon
• Working to understand Condor SMP VM setup
• Install new host certificate on osg-itb (gatekeeper) server because the old one expired
• Audit osg-itb environment variables setttings
• Audit osg-itb cron job settings
• Audit osg-itb file system settings (export and mount points)
• Audit osg-itb (gatekeepter), osg-itb-se(submit node) firewall settings (iptables)
• Monitor/understand network traffic on osg-itb (gatekeeper) and osg-itb-se (submit) generated by condor and vdt software using  "ethereal" tools and "netstat" command
• Setup new firewall rules (IPTABLES) on osg-itb and osg-itb-se server
• Validate the new firewall rules do not break condor and vdt software by testing multiple LIGO condor jobs on the osg-itb cluster submit from osg-itb-se server

GRID MANAGEMENT

• Worked with DOEGrids to have Murali Ramsunder accepted as a new Registration Authority Agent for the OSG:LIGO VO
• Updated my own status as a DOEGrids Registration Authority Agent for the OSG:LIGO VO
• Filed Quarterly Report to OSG as the Caltech PI
• Met with director of TeraGrid to discuss possibilities for LIGO applications. Included analysis, CA hosting, windows GSI clients, backfilling of jobs
• Discussed Einstein at Home backfilling on OSG condor sites with Warren Anderson (OSG LIGO Council Person) and Ruth Pordes (OSG Director) as a possibility. Warren will pursue this with Pulsar Group

________________

Kent Blackburn, this week:

GRID APPLICATION DEVELOPMENT

• Version 3 Calibrated H(t) Frame data testing:
  • discovered change in segment lists 4 V3 data
  • requested and obtained V3 segment lists
  • generated new segments for V3 analysis
  • bug in pipeline.py, inspiral.py and inspiral_hipe.in was discovered and fixed by Duncan and Drew
  • waiting on: bug fix in pegasus-site-converter, tag of new glue/lal/lalapps versions
• Face-to-Face Meeting with ISI:
  • Pegasus presentation
  • Pegasus hands on tutorial
  • converting from VDS to Pegasus 2.0 tutorial
  • discussion of LIGO specific changes in Pegasus and Glue
• Preparating talk for OSG-User and Applications workshop being held at Fermilab

OPEN SCIENCE GRID INTEGRATION TESTBED

• Attend PEGASUS tutorial workshop
• Attend DASWG telecon
• Attend OSG ITB telecon
• Audit osg-vtb environment variables setttings
• Audit osg-vtb cron job settings
• Audit osg-vtb file system settings (export and mount points)
• Monitor network traffic on osg-vtb (gatekeeper) generated by condor and vdt software using "ethereal" tools and "netstat" command
• Setup new firewall rules (IPTABLES) on osg-vtb, pass OSG-ITB Grid Exerciser daily testing
• Backup files and environment on osg-vtb to prepare the vtb upgrade and testing
• Backup files and environment on osg-itb to prepare the itb upgrade and testing
• Backup files and envrionment on osg-itb-se to prepare the Pegasus

Upgrade

• Help identify and trouble-shoot ISI viz-login server firewall problem, made suggestion to the Karan to resolve login issue from Caltech
• Download the Pegasus 2.0 source code, read new document, compile the new release into the binary distribution and install the binary release on osg-itb-se server
• Patch the Pegasus 2.0 release
• Setup the new Pegasus 2.0 environment for end user

GRID MANAGEMENT

• Discussing possible migration of Einstein at Home appication as a backfill application on OSG Condor clusters
• Working with the OSG Applications coordinators on areas where Caltech can contribute to the overall OSG effort.

________________

Eirini Messaritaki:

• I worked with Vibha on the detection of eccentric binaries using non-eccentric templates. We spent quite a while debugging the ODE solver that gives the phase, eccentricity and semi-latus rectum as functions of time. We now have eccentric waveforms.
• I worked with Romain and Steve on the automation of the follow-ups in the inspiral pipeline. We are currently testing the DAG script and trying to add more functionality to it.
• I worked on debugging and testing the inspiral null stream code.

________________

Xavier Siemens:

• Attended Cosmology and Strings conference in Trieste, Italy.

________________

Stephen Fairhurst:

• Final revisions of paper on Loudest Event statistic prior to submission to P&P committee for review
• Address internal LIGO reviewer comments on paper "Interpreting theresults of searches for gravitational waves from coalescing binaries" prior to submission to archive/journal
• Work on ability to automatically run the full inspiral pipeline and followup weekly
• Discuss use of neural networks in inspiral search with Kari and Becky

________________

Duncan Brown:

• Worked on comparison of numerical relativity waveforms with post-Newtonian templates
• Helped Diego with the implementation of the PTF search
• Helped Drew debug a couple of problems with compression in the inspiral pipeline
• Attended meeting with ISI computing science group to discuss using the inspiral code on the OSG
• Release a new version of glue software
• Build ligotools packages for metaio and the frame library
• Worked with Stuart on some ZFS issues with the new Sun file servers

________________

Drew Keppel:

• Testing lower SNR threshold of 5.0 for H2 in a mini dag.
• Getting code tagged and ready to start S5 1 Year Low Mass CBC injection and time slide runs.
• Deciding on effective distance cut for S5 1 Year Low Mass CBC. http://www.lsc-group.phys.uwm.edu/cgi-bin/enote.pl?nb=iags5bns&action=view&page=19

________________

Kari Hodge and Becky Tucker are developing a neural net to use inspiral trigger information to effectively separate signal (injections) from background (time slides, accidental coincidence of noise triggers). First results look terrific.

Laboratory Computing (Anderson)

LDAS Software Systems (Maros)

• A milestone with the diskcacheAPI has been reached. Using tandem-v, it has been shown that hung NFS file systems can be detected and removed from the hash table allowing second order results to be returned. When the file system comes back online, then the primary result is returned. The system has also been shown to come up with hung NFS file systems. Currently the code base is being tested on ldas-dev to evaluate performance and stability.
• To increase space available to the resource table, the resource page of cmonClient was modified to use menu buttons to display functions for resource modifications and display of column data. Further real estate was made available by the use of a notebook to hold command status and resource table.
• The Job statistics page was modified to have the number of jobs passed, failed, and rejected to be placed above the users and commands information.
• System testing was done using version 1.8.603  of the LDAS software. All system tests passed with their expected results.
• Work has started on providing a version of ligotools that supports certificate based authentication. The loop scripts that run on ldas-dev each night along with several other system tests have been modified to make use of this modified version of ligotools. All the modified scripts continued to function properly using the modified ligotools.

LDAS System Administration (Anderson)

Caltech

(Erik Espinoza)

• Wrote initial migrateuser script for qfs to zfs migration.
• Fixed replacement GC mail server for authenticated relays.
• Found errant spamassassin rule to reject spam.
• Worked with Paul Armor and Stuart on learning ZFS.
• Built and configured machine to test NX.

MIT

(Fred Donovan)

• /dso-test/home (exported from data2) multiple hangs from ldas-grid - remove data2 from automount maps files resolved this.
• Set up pcraid13 (old datacache11)
• Updated condor (rpm) added disk (df) output to cluster monitoring.

Livingston

(Dwayne Giardina)

• Tape eject for shipment to CIT.
• Working on cluster_mon adding network usage to summary page.
• Gave Doug a run-through on the tape eject and shipment process, as  well as what to watch for on the T3s and 351x's.

Hanford

(Ben Johnson)

• Wrote script to pull out user certificates from the doegrid's LDAP database, and extract their expiry dates. With the other information in the LDAP database (e.g., email addresses), matching certificate(s) with a unique human being should be more reliable now.
• LHO publishing scripts died this weekend due to RLS problems related to the LHO network.
• The design work for the Asynchronous FrameIO module (for LDAS NDS) is finished. I would guess the code is 80% of the way to an actual server test (a.k.a. debug session). Most time has been spend on keeping track of all the I/O requests and making sure everything is keep in the right order.

General Computing (Wallace)

MIT

(Fred)

• Added more LIGO22 wireless in new space; LIGO17 wep in nw17 control room; more ip address changes;
• Reconfigured the printers (using built-in acls/exposing to local net);
• Purchasing: RMA, supplies for conference;
• Added 2TB esata to nova (burst group) - (some nfs4 issues w\ new kernel);
• ilog work (add keywords);
• Usual move-related conf issues.

Livingston

(Dwayne)

• Added rules to the spam filter for LSC mailing list SPAM
• Xcode Dev Tools and vPython on a MacBook for a user
• Installed Logger Pro and QuickCam software on the SEC laptops; received
• Installed the locking storage cabinet on wheels with electrical for the laptops
• Installed MS Office Equation Editor on the SURF PCs
• More work on the SEC building controls PC
• Received and assembled a rack for the bake lab PC
• Began building a PC for power monitoring software/hardware
• With Shannon, cleared errors on a disk array attached to Baronne
• Investigating some possible solutions to sharing iCal events
• Usual user support requests
• Cleared spam trap

LLO mail summary for 5 July 2007 - 12 July 2007:

Rejected:  5,748(76 containing virus)

Accepted: 6,283

Total: 12,031

Hanford

(Christine)

• Making some real progress moving users to the new disk system.  I have disk quotas in place now for all the large disk users.
• Noticed an increase in ssh directory hack attempts.  I modified the access list on the router to block the source ip addresses of these latest attempts.
• Set up another PC for the visiting teachers in the Staging Building.
• Added more ip addresses to the DHCP list for this week and next to accomodate the teacher course.
• Other misc. user support.

CIT

(Mike)

• Continued work on finishing up a server to replace Canopus. I’m almost done with this project. Larry gave me a hand with a latex issue I was having when trying to compile this software.
• Helped Christian pick up some equipment from Synchrotron to move Riccardo’s group out of that area. This is old equipment that may be surplus.
• Ran additional network cables in our server room 18 B/A to install additional servers in our computer racks. Also re-routed some cables in Christian’s and my office to clear up some network issues we were having. Christian gave me a hand with this.
• Worked on a server issue; this is our sandbox for Solid Works. It seems that ever since we upgraded to the latest rev. of Solid Works 2007 we are now having problems running S/W using remote desktop. Remotely the S/W software runs way to slow even after making many tweaks to speed up the performance. The only software that can run on this server remotely is Ansys & Algor, and this is for analysis purposes only.
• Input more changes to our ip/equipment database.
• Other misc. user support/sysadmin tasks.

(Veronica)

• LSC:  Ongoing support of the July meeting.  Addressed the issue of server security and migration, and website configuration on the new machine.  Updates of the database of technical papers.  Other website updates.
• LIGO: Addressed a copyright issue per a request from a publisher. Additional copies of the installation DVD.  Updates of the roster application, other misc. web updates.

(Christian)

• Updated the laptops that are traveling to MIT with the latest security patches and virus definitions.
• 40 Meter- Hard drive failure on visitors¹ workstation. Rebuilt new hard-drive with our standard ligo image and transferred all of the settings and data back to new drive.
• Tested the latest Microsoft security patches.
• Mike and I are testing webcam software for the meeting next week.
• Finally, got the surplus equipment picked up. Larry and I spent time getting the people out to CIT and assisted in getting the equipment loaded.
• Other misc.: Continued onsite software/phone support.

(Larry)

• Worked a number of procurement items. Tracked down a couple of purchases and got them delivered. Tracking down a recent UPS purchase that should have arrived a few days ago. Updated a license contract. Working on documentation for past P-card purchases. Assisted Gina with a couple of related items. Worked with Florence in resolving a purchase documentation issue. Getting pricing on some new switches needed for a couple of different areas.
• Spent time on the new imap server. Fortunately, Erik found the problem in the config file and things are now working. There are a few bugs to still work-out but we will start moving people over to the new unit next week and build another server for debugging/enhancement purposes.
• Setup a new website, for short term use, and installed documentation for a group that Phil L. is working with.
• Finally, got a disk image off to Shannon for analysis.
• Setup a number of new user accounts. New students and more visitors.
• Working with Christian and Mike on getting a cheap webcam broadcast system setup.
• Resolved a couple of mailman issues. Still having problems with some of the files updating correctly from the automated system.
• Working on some of the logistics for the LSC meeting.
• Still trying to get the work in the computer room wrapped up. All of the work is now done but we are having condensation problems with the new unit.
• Setup some new licensing on a newer server. However, it will need to be updated the first of next year.
• Assisted Rolf/Alex in getting a another computer for the 40M. One of the frame builder units was having problems and needed to be replaced. We still have some shuffling to do but they should have what they need.
• Regular user support.

Advanced LIGO and Supporting R&D (Shoemaker)

 Advanced LIGO Systems

Modeling and Simulation

From: Hiroaki Yamamoto hiro@ligo.caltech.edu

Static IFO simulation (Hiro)

• Couple cavity code is completed, and now it is used to study physics. First will be the comparison of stable and marginally stable cavities, i.e., the tolerance of the RM and ITM curvature matching which is very difficult, almost impossible to realize for the marginally stable case. Studies of the effect of the thermal deformations and mirror surface aberrations will follow.

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

• Melody found a timing when the static variables are overwritten during the process of linking a dynamic library.
• She has implemented a generic facility to workaround this problem. This made is possible to build a UDP module which handles fields.
• Melody is adding routines to support UDP modules which have delays, like DAC.
• Based on the conversion of existing primitives, we found a few serious problems and have (almost) resolved. 
• More conversions of existing primitives will continue to uncover issues to be solved before the UDP release at the end of September.

Mechanical Simulation for advanced LIGO (Sany and SLU team)

• Simple e2e code to test outputs from various ports with a typical ground X motion fed into the corresponding input port. Results of the test are being analyzed.
• The Open Loop transfer functions of the Adv LIGO Mode Cleaner e2e model that we computed last week indicate that the frequency control gain is too high as compared with the MC length gain below the cross over frequency. We changed the control filters and are about to analyze the resultant OLTF.

_____________________  

Our LIGO-Related Science Initiative (LRSI) workshop for teachers started this Monday on the campus of Southeastern Louisiana University. We have 23 participants from middle and high schools in our region (the North and South shores of the New Orleans area). After covering topics of (a) measurement and dimension, (b) gravity and kinematics, (c) mechanical wave and (d) sound waves, the workshop seems to be quite successful. We receive a number of feedbacks, including very good questions and comments on our presentations from the participants. The participants have made several demonstrators (miniature versions of exhibits installed in the LIGO SEC) for the above topics that will be brought back to their schools.

 

CDS Prestabilized Laser

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

• I have fixed a minor problem with the hour meter circuit relating to the trigger level.  It now correctly drives the hour meter.  All other functions work just fine (reset and power check).
• For reasons I don't understand the computer touch panel will not work if a fixed IP address is entered but it does when setup for DHCP.  Another one for the mystery books.  I have made some minor progress in getting a program to work under TwinCAT.
• The 35-W laser shipped from LZH has arrived in the country.  There is a hold up however because an issue with some paperwork.  Our customs broker informed me that unless he receives an accession number from the FDA then he cannot retrieve the laser from customs.  In order to receive an accession number a product report has to be submitted to the FDA for approval.  As a result I have been going over a product report and having to find out what various definitions are as defined in the Code of Federal Regulations Title 21 (CFR 1040.10).  This paperwork is needed soon otherwise the laser will be moved to a federal, where presumably it will set next to the Ark of the Covenant.  I've consulted with Ed Jasnow about this and he is helping to sort this out.

 

Control and Data Systems

From: Rolf Bork rolf@ligo.caltech.edu

OMC Controls

• Met with Peter and Rana to review the CDS OMC controls for ELigo. Rack layouts are complete and procurement/build process has begun. Plan at the moment is to have single stage ISI components ready for shipment to Boulder to support testing there in October. This unit will then ship to LHO in December for integration with the ISC and suspension control components there. A full OMC control unit is planned to be ready and shipped to LLO in November. The site engineers have been asked to start looking into rack placement and DC power feeds. Still an open issue is which flanges the CDS control signals will hook up to on the HAM (being worked).

DAQ

• AdvLigo controls prototype software has been updated to allow realtime front end controllers to write to multiple FrameBuilders.
• Exploring the possibility of having one FrameBuilder (FB) per IFO at LHO, vs the present scheme of one FB writing data for both IFO. If this receives approval, the idea would be to implement this prior to S6.
• Alex is working on a GUI to aid in DAQ channel configuration.

 

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