Weekly Report for Week Ending April 11, 2002

The LIGO Executive Committee Agenda for Monday  April 22, 2002 will be:

 (Meeting time: 10:30 am Pacific Time)

Open meeting 10:30 - 11:30

A meeting of the LIGO Change Control Board has been scheduled.  Time permitting we will address the standard agenda items below:

• Announcements
• LSC Issues (Weiss)
• Comments on Weekly Report
• WBS 1 LIGO I Construction (Lindquist)
• Field Change Orders/Contingency Liens/Change Requests
• WBS 2 LIGO Lab Operations
• Administration (Lindquist)
• Sites (Raab, Coles, Shoemaker, Sanders)
• Detector (Whitcomb, Coyne)
• Campus Research Facilities (Weinstein (40 Meter), Libbrecht (TNI), Zucker(LASTI))
• Data Analysis and Computing (Lazzarini)
• WBS 3 and 4  Advanced R&D and LIGO II (Sanders)

Special Items:

Special Announcements:

Weekly Report Highlights
 

LSC Issues (Weiss)

no report

LIGO I Construction/LIGO Laboratory Administration (Lindquist)

A site teleconference was held on Thursday, April 18, 2002.  The following items were discussed:

• Next week site teleconference will be dedicated Outreach Presentations.
• Cost Status - endo-of-March costs (excluding R&D) running at 87 percent of budget.  First few months are low, but expect to catch up due to time lags transferring to new Cooperative Agreement.  Staffing costs are at 90 percent of budget.
• Livingston Construction - the contractor indicates that he will be finished by the end of April.
• Hanford Construction - siding still not on site.  The contractor has provided a revised schedule with work arounds.  Still holding to original completion.
• Hanford Audio/Visual Equipment - Livingston to provide copy of their statement of work to use as a template.  Hanford has four prospective bidders.
• Personnel - Katrina Carter starts at Livingston as an Operator Specialist.

SURF - we expect 34 SURF students to show up in June.  Of these, 24 will be at Caltech and five at each site.

From: Ed Chargois <chargois_e@ligo.caltech.edu>

• No report this week.

>From: Linda Turner - turner@ligo.caltech.edu>

Web pages for the DCC give simple how-to's for document numbering, easy access to the latest on-line documents, and search capabilities for the DCC database. Take a look. . .

ACCOMPLISHMENTS

• Processed a couple more LSC presentations that straggled in.
• Redistilled about 8 LSC presentations that ended up with only a cover sheet in the .pdf version.  These have now been transferred to docspublic.
• Met with Dennis to review a multi-page drawing submitted to determine the best way to number and maintain version control.  Am in the process of issuing a specification for the drawing consisting of the list of drawings originally in the submitted package.
• Met with a Canon representative for a demonstration on a Canon CD-4050 scanning workstation.  It is a great machine but, unfortunately, doesn't do color scanning.  I was under the impression that it was color capable and was disappointed to find out otherwise.
• Searched for three work orders from the past for the DCAA auditors.  Only one of the three was in the DCC.
• Continued to work on the upcoming rollout of the new LIGO procedure and policy manual.
• Continued to work with Ryan and Dave on the press kit being assembled.  Worked with Cleveland on scanning the many news clippings collected during the past three years.  The DCC numbers assigned to each still need to be imbedded on the document.
• Sent out email for the upcoming Cinco de Mayo lunch on May 3rd.  Made up the tickets and food sign-up sheets as well.
• Worked on several problem documents electronically submitted to the DCC.  Many of them involved numbering inconsistencies, revision discrepancies, and other such difficulties.  Reminder to LIGO staff:  Please make sure that as a minimum, each document submitted has a LIGO number, author's name, and date.  It's surprising how many documents are missing one of more of these essential pieces of information!

ACTIVITY

• Scanned approximately 40 documents for press kit.
• Progress continues on conversion of old charge account files to electronic form.
• In the process of processing numerous electronic documents submitted to the DCC.  Several documents seem to have problems with them.

 

04/18/02	Packages	Faxes
In	30	45
Out	10	27

From: Esther Cunningham <esther@ligo.caltech.edu>

Press here for ACCOUNTS PAYABLE HISTORY DATA .

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

• Completed internal modifications to Katherine Creath, Wyko, Oliver McCullough, Hytec, and Allied Engineering. Completed C/O #1 to Reliable Office, and C/O #10 to Teknicircuits. Working on C/Os #12 and #13 to Brunt Construction.
• Working with Bill Tyler on obtaining more information and figures on the JPL workorder with Raytheon.

• Assisted with providing and reviewing items requested for DCAA budget.
• Completed and posted report for FP2001 Operations as of March 2002 on network.
• Worked on projection of expenditures for 40Meter Lab Operations.
• Responded to request from Federal Accounting for funding realignments.
• Prepared a schedule of budget increases required due to increase in benefit rate.

 
• Financial reports can be found at: http://docuserv.ligo.caltech.edu/~fireport

From: irena@ligo.caltech.edu (Irena Petrac)

• Nothing significant to report.

CONSTRUCTION:

• Work is proceeding slowly on the final punch list items for the LLO Staging Building. The contract is still scheduled to be completed by April 30.
• The siding has not been delivered for the LHO OSB East Building, so the contractor is re-arranging his schedule around this delay in order to keep the original schedule intact.
• Four potential proposers have been identified to provide the A/V equipment for the LHO OSB East Building. A request for proposal is now being prepared to send out to acquire this equipment.

• The personal injury lawsuit brought by a contractor injured at Livingston has been settled as a result of mediation. The settlement amount will be covered by Caltech insurance.
• A seminar for all foreign nationals on the LIGO staff will be held on Friday, May 3.  This will be conducted by Marjory Gooding, Director of theInternational Scholars Office at Caltech.  The sites will be connected by videoconference.

SUPPORT (Baldon, Torres, Lloyd, Tischler)

• Processed the paper work for seventeen (17) new/revised trip, eight (8) completed/ticketed trips awaiting the necessary paper work, and thirty-Six (36) trips in various stages of completion before ticketing can be done and paper work completed (mostly SURF 2002 students).
• Completed four (4) Expense Reports and there are thirteen (13) reports yet to be done.
• Reconciled twenty-nine (29) P-Card items this week (one-hundred-twenty-three (23) for the month) which require extensive telephoning to vendors in order to track down which traveler incurred which charge.
• Started working on the LIGO/REU/SURF Program with Dr. Libbrecht. Twenty-nine (29) students have responded to my initial inquiry for travel and four (4) have been completed at this time, with twenty-five (25) still being worked out.
• Worked on the preparation and distribution of the Travel/Vacation Itinerary for April 15, 2002. Performed normal recording and filing associated with Travel and Reimbursement. Also performed miscellaneous duties as requested by various members of the LIGO Project here at Caltech as well as from members of the staffs of each of the two (2) sites.
• I continue to do MIT's travel to the sites for installation activities and also to assist them wherever possible.

• Continue to work with Ruth on closing out complete POs with remaining encumbrances.
• Processed the usual flow of invoices for payment, and also tracked and followed up on some invoice problems. Reviewed and recorded payments processed by Esther the week of April 8.  For the total number of incoming invoices received for this period see "Cost Schedule Control Systems" report by Esther Cunningham.
• Processed the usual requisitions and change orders.
• Continue to monitor contract and blanket order encumbrance and notify task managers when supplements are needed.
• Jim continues with data entry in the LIGO database and helping out in the DCC.

• My computer slowed down drastically as it battled a virus. Many thanks to Mike Pedraza who worked tirelessly to remedy the situation. Thanks to Mike's care, I lost no files.
• Posted on the small web page for review documents from Pennsylvania State. Notified V. Kondrashov of LSC documents available for posting on the web.
• Completed Lase-R Shield purchase for eye wear replacement shields, these should arrive soon.
• Returned for credit several pieces to CVI, and Polytec. Placed Pcard orders, and chased lots of invoices this week. Reconciled 52 this period.
• Updated site trips. Change to LIGO roster this week: visitor Youichi Aso.

• Cinco de Mayo celebration planning.
• Have most templates and will begin formatting a standard template for each one, consistent with one another.
• Meeting with photographers and securing bids for upcoming brochure.
• Completed press clipping service and now finalizing press kit.
• Beginning coordination of SURF/LIGO orientation, this in conjunction with GoF.
• Preparation for GoF meeting on 4-22.
• Reconciled p-card and travel this week.

Advanced LIGO (Frey)

Progress Period from 04.12 to 04.18

Accomplishments:

• Weekly Advanced LIGO Project Controls meeting was not held this week.  Next meeting date has not been scheduled.
• I was delegated a new task this week by Gary and Peter F. to implement a web based calendar application to assist the commissioning group with logistics and coordination.  After researching some products that are available, per Larry's recommendation, we are going to pursue a solution through Caltech's ITS group.  I have a kickoff and recon meeting scheduled with Jennifer Davis of ITS and Larry for Monday at 9:30am at Steele.  For more information see http://cdp.caltech.edu/ and http://www.steltor.com/index.cfm?flash=no.
• Followed up with Primavera regarding an outstanding technical issue and received a program patch that I am now using and testing.
• Advanced LIGO MRE Proposal (Highest Priority)
• Continuing the development of the Cost Estimate.
• Continue to pursue all other sub system schedules.  Continue to review all subsystem schedules and incorporating new target dates per DCC Doc. No. LIGO-M020121-A by Dennis Coyne.
• Updated web site with latest data.
• The following is a summary of status by sub system:
• COC - Work on action items per second review continues.  Next meeting date has not been scheduled.
• PSL - Finished inputting changes to the cost book and schedule.  Next meeting date has not been scheduled.
• AOS - Work on action items continues.  Inputting / reviewing data provided by David S.  Next meeting date has not been scheduled.
• IO -  Work on action items continues.  Next meeting date has not been scheduled.
• SUS - Working with SUS group to incorporate current comments.  Janeen is still executing the update and has submitted any data pending a review at the end of this month.  Executing outstanding action items and preparing revised meeting minutes.
• SEI - Work on action items continues.  Next meeting date has not been scheduled.
• ISC - Continue to review data.
• All other subsystems have yet to be scheduled for their first review.  These dates are pending per direction from Gary Sanders and Dennis Coyne.
• Continue to update the TNI Schedule and incorporate any changes.
• Updated the plan with progress as of 04.12.02 and  posted to site.
• Sent out update data requests for progress as of 05.03.02.
• Continue to update the LASTI Schedule and incorporate any changes.
• Updated the plan with progress as of 04.12.02 and  posted to site.
• Sent out update data requests for progress as of 05.03.02.
• Project Plan for the 40-Meter Lab Upgrade continues.
• Updated the plan with progress as of 04.12.02 and  posted to site.
• Sent out update data requests for progress as of 05.03.02.
• Cost Book Tool.
• ROSTER DATABASE:
• Continue work on my action items providing BK with needed data.
• COST BOOK DATABASE:
• Online help is current with most recent system changes.  Procedure is being reviewed for changes.
• DCAA - Work continues on the incurred cost audit.
• Prepared / revised 4 transmittals.
• Development of the Advanced LIGO Project Controls Guidebook continues.
• Project Web Site for posting schedule and progress related data continues to be updated with the latest and greatest.
• See http://www.ligo.caltech.edu/~tfrey/index.html

• Next weekly Advanced LIGO Project Controls meeting to be scheduled.  Per Gary, we will be scheduling a meeting before the end of the month.
• Continue effort getting the web based calendar system up and running for the commissioning group.
• Advanced LIGO MRE Proposal (Highest Priority Task)
• Highest priority is the development of the Cost Estimate.
• Will continue to pursue all other sub system schedules.
• PSL - Will complete estimate and schedule changes.
• AOS - Continue inputting changes to and prepare for next meeting TBD. (New data from David to be input).
• IO - Continue inputting changes to and prepare for next meeting TBD.
• SUS - Continue inputting changes to and prepare for next meeting TBD.
• Will update the plan with progress as of 03.29.02 and  post to site by the 5th.
• SEI - Continue inputting changes and prepare for next meeting TBD.
• COC - Work on action items by Garilynn continues.  Anticipate schedule changes prior to next meeting TBD.
• ISC - Finish review of data.  Input data and change WBS as requested.
• Will issue updated meeting minutes for every subsystem as action items from most recent review are completed.
• Will Continue to update the TNI Schedule and incorporate any changes.
• Will update the plan with progress as of 05.03.02 and  post to site by the 7th.
• Will Continue to update the LASTI Schedule and incorporate any changes.
• Will update the plan with progress as of 05.03.02 and  post to site by the 7th.
• Will continue updating the 40 meter schedule and incorporate any changes.
• Will update the plan with progress as of 05.03.02 and  post to site by the 7th.
• Roster Database
• Will continue to work with BK and executing action items.
Cost Book Tool development continues.  (Highest Priority Task)
• Mapping and formatting of OPS cost data for input will now continue with co-operative agreement approved.
• Will continue to work with BK executing action items.
• Will continue to provide support to PL for DCAA audit(s).
• Will continue the development of the Advanced LIGO Project Web Site.
• Will continue the development of the Advanced LIGO Project Controls Guide Book.

I have distributed a DRAFT quarterly report for the Construction effort (end of February) for review and comment.

The following change requests have been submitted:
 

A reminder that we will be doing a LIGO Change Control Board during the Executive Committee Meeting on Monday, April 22, 2002 at 10:30 am PDT in the SCR.

Press for the latest Contingency Needs Projection.

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

• Various personnel/payroll /HR related work.

Quality/Safety (Tyler)

No report this week.
 

LIGO Hanford Observatory (LHO) Operations (Raab)

No report this week.

LIGO Livingston Observatory (LLO) Operations (Coles)

From: "Gerry Stapfer" <gerry@ligo-la.caltech.edu>

Control Room: (Rich Riesen)   MEDM on screen help files are 50% completed.  Mode Cleaned AutoLocking installed and operational.  Spiricon and Image acquisition software now installed and operational on a Control Room computer.  All PEM Microphones have been installed and are operational.
6 MEDM screens are now available for web viewing.  Larger, higher capacity on-board batteries have been installed on the Weather Stations at both ends.

CDS: (Russ) Installed new shielded cables on the Pentek boards in 1X9 and at both end station.  Completed testing of the newly modified SEI feed forward system at both end stations.

Optics and Installation: (Jonathan) Yesterday I met all day with Mike Yeatman, the installer of our Laser Safety Interlock System for an initial closeout!  Happily, the system is functioning properly, all perimeter doors are alarmed the workstation in the Control Room has now been setup with an Operator's  Console that now erupts with an audible alarm and a graphic popup of violations.  He's also replaced the defective camera on the observation deck.  Began coordinating with Stanford and MIT to receive the handoff of drawings for the EPI.  Obtained appropriate software to manipulate the source files.  Completed and installed new ITM cameras and scatterometers, along with a photometric camera in the vertex.

Detector/Technical Support (Whitcomb, Coyne)

40 Meter Interferometer (Weinstein)

• Our new postdoc, Osamu Miyakawa of Tokyo University (a student of Seiji's who did an RSE experiment with his own suspended mass interferometer) arrived today, and is settling in (360 WB, x3049, miyakawa_o@ligo.caltech.edu ). Please make him feel welcome!
• We expect a visit from the Polish Public TV tomorrow (Friday 9 am).
• Status of 13 meter suspended mass mode cleaner at the 40m:
• All three suspended optics are in place in the vacuum chambers.
• The beam from the PSL and IOO train is all lined up on MC1 and MC3.
• We only have one stand-alone analog suspension controller, with the gain set too high; so we can't damp the optics, and thus, cannot align MC2 (which is 13 meters away from MC3).
• Ben, Bob, Jay, Rolf, and crew are working towards getting our digital suspension controllers ready ASAP.
• We are preparing the input mode cleaner reflected and input mode cleaner transmitted sensing beams, as well as the electroncis for mode cleaner length and alignment sensing and control.
• We hope to have it all together within a month!
• Suspension Controllers & other CDS (Ben Abbott):
• Dennis informed me that he noticed a large ammount of electronic noise coming from one of the suspension satellite boxes. I brought it back to the shop, and it tested out fine. In putting it back in situ, I noticed that one of the IDC 64 connectors had been all but disconnected from its cable. After fixing this, the noise wasn't evident, but more involved testing might reveal more information.
• The ISS DC photodiode pcb file is just about finished, and will go to the boardhouse tomorrow.
• Dennis and I populated 1Y2 (mode cleaner LSC and ASC controls) with its crates and some of the modules.
• I continue working on the photodiodes that will be needed for the mode cleaner controls.
• I mailed back yet another failed IBM RAID disk. It should come back some time in the next two weeks.
• Bob is about finished with wiring the power on the suspension controller racks (1Y4 and 1Y5), and is about to start on the 1Y2 cross-connects.
• Dennis has brought over from LHO the digital suspension controller epics screens, and the IOO controls screens, and is modifying them for the 40m. Ditto, for the databases.
• Optical Layout (Smith):
• IO Diagnostics, IMC_R and IMC_T: A layout for temporarily placing the IMC_R ISC components on the AP table near the output chamber was completed. However, because the electronic cable lengths would be different due to the additional length from the intended location south of the PSL table, the layout will probably not be implemented.
• A current inventory list and order list for all of the ISC table components is being generated. Mike is leaving for 6 weeks (honeymoon and stint at VIRGO), so he will go over the installation of the IMC_R and IMC_T optical train with Dennis early next week.
• Many of the 45degree beamsplitters in these optical trains were ordered for the wrong polarization, so new orders are going out.
• OPTICAL LEVER OBJECTIVE LENS: A further analysis showed that a finite conjugate design concept for a compact 40m objective lens is unacceptably sensitive to positioning errors of the first-stage focus lens. An afocal design concept will be studied to determine if it will be satisfactory.
• Mike is thinking about a redesign of the input Faraday isolator, using Brewster angle polarizing beamsplitters to minimize back-reflection; but the resultant SP beam will be astigmatic.
• Optics (Billingsley, Armandula):
• Our beamsplitter, power recycling and signal recycling optics have come back from polishing by CSIRO. They are being inspected by Helena and measured by GariLynn, then they will go out for coating by REO. Helena has already looked at the two beamsplitters.
• CSIRO is still polishing our 5" test masses. Hope to get the 3 ITMs and 3 ETMs in a few weeks.
• PSL and IOO (Ugolini, Vass, B.Abbott, Smith):
• The PSL, and its two servos, continue to perform stably.
• Still need to fully optimize and re-characterize the mode matching, FSS, and PMC servos (noise spectra, transfer functions), since this most recent re-build.
• PSL diognostic optical train remains to be laid out and commissioned.
• A beam tube and viewport shield was installed between the PSL enclosure and the output optic chamber.
• Because the PSL table is 1.5" to the west of where it was placed on Mike Smith's Autocad layout, the beam did not enter the vacuum chamber in the right place; this became evident when we installed the beam tube. Steve has moved the IOO optical train 1.5" to the east to compensate, and re-steered the beam into the output optic chamber.
• Facilities and vacuum envelope (Vass):
• Steve had the AP1 table (4' x 6') moved to the vertex area, and bolted to the floor.
• Larry has optical table enclosures, and beam tubes, in process in the Caltech shop.
• Larry has designs for mounts for sony cameras looking through viewports at suspended optics, which protect the cameras and viewports. They are in the shop and should be ready in 2-3 weeks.
• Ben is arranging to have another rack be moved from the X arm to the Y arm (between 1Y3 and 1Y4; I guess it will be called 1Y10), and bolted down.
• Caltech HVAC is bringing in subcontractors to bid on improving the AC in our new control room.
• We are currently at atmosphere.
• South Annex Bake Ovens (Taylor, Cardenas):
• Bake oven #D, old chamber is ready and in standby.
• Bake oven #E, new chamber is ready and in standby.
• Bake oven #B, small chamber is ready and in standby.
• Bake oven #C, small chamber just finished baking the (7) bars of Stainless steel for the OTF Lab.
• Bake oven #F, is in progress of getting prepared.
• Bob Taylor is preparing to bake optical quality viewports in oven #E.

Thermal Noise Interferometer (Libbrecht)

From: Eric Black <black_e@ligo.caltech.edu>

This week we identified one prominent source of noise in the TNI: a 15.75kHz oscillation on ground caused by one of our closed-circuit video monitors. This signal couples into the second sr560 in our servo filter, and the height of the resulting peak in our data is proportional to the gain in this amplifier. More importantly, harmonics of 15.75kHz also appear in our data, leading us to suspect that our prominent and regular peak at 31.5kHz is not, as we had first suspected, a mechanical resonance.

We also identified a similar peak in the photothermal experiment, caused by one of the R.F. signal generators in that experiment.

LASTI (Zucker)

No report this week.

Data Analysis and Computing (Lazzarini)

Simulation and Modeling (Bhawal)
E2E Physics meeting

Mechanical simulation

- Still working with Giancarlo Cella on the first release of MSE2, which   will provide the thermal noise calculation of the simulated mechanical systems.

LIGO I simulation system

Code development and maintenance

(Biplab) Testing recent guoy-phase and mismatch related changes.

(Ed Maros)
- Finished first draft of Makefile.am changes for JAlfi
- Minor port support for Linux.

Alfi

(Melody)
- Fixed some PRs which included enhancing the settings value editor for alfi5.  Continuing on fixing some refresh problems with the popup menus.

LIGO Data Analysis System

Software Systems (Blackburn)
The majority of the week has been spent identifying and fixing bugs in the pre-release versions of LDAS. On Monday we pushed a pre-release version onto LDAS-TEST so that the members of the LSC that are developing search codes would be able to test their codes against this new version of LDAS. This pre-release version was found to have a very high failure rate and once a new version of LAL and LAL-wrapper needed to be pushed, we took that opportunity to upgrade LDAS to a new pre-release version as well. This version was having about an 11% false failure rate in our nightly testing. The primary cause of these failures were a set of bugs in the managerAPI, diskCacheAPI, and mpiAPI.  These were fixed on Wednesday and the test results for Wednesday night indicated that we have now reduced the false failure rate from about 11% down to about 0.25%.  This is a tremendous accomplishment and places us back in the ballpark of the failure rate that we experienced in the pre-release version of LDAS used in the E7 run last December.

We have begun the process of pushing the pre-release versions of LDAS to the Laboratory LDAS systems. At this time the pre-release version of LDAS is successfully running at LHO and MIT (in addition to already being on DEV and TEST). We will be working to get this pre-release versio of LDAS up at LLO today. Also, we have placed this pre-release version onto the new CIT system (which currently lacks a beowulf cluser).

We have completed about 40% of our required test suite used in qualifying an LDAS release. At this time on one major problem remains that needs attention for this release. The system does not allow Process Frames produced by earlier jobs to be reused in dataPipeline later dataPipeline commands. This is being looked into today. We also have significant documentation preparations still to make to the system before the release. There are several minor issues which will not hold up this release.

One minor change to the wrapperAPI forces it to buffer the messages between the wrapperAPI and the mpiAPI to not occur more frequently than once every 2 seconds - system tunable with the resource file. This was needed because a lot of poorly organized search codes are requesting to send messages at rates higher than unix allows without major unix reconfigurations.

A new problem tracking catagory was added to the LDAS GNATs system for GUILD this week.

The actual release date of LDAS will be closely coupled to the tests of the search codes by LSC authors. We will wait for an a-o-k before finalizing the release in the event that we resolve our internal issues before the search codes are adequately tested against this new release.

Hardware Systems (Anderson)
Caltech

* Continued HPSS migration from Redwoods/3590s to 9940s.
* More HPSS user directory reconfiguration and account maintenance.
* Worked on resetting everything after one big HPSS failure.
* Helped Igor at LLO with Qlogic HBA firmware, T3 pSOS and FC switch firmware upgrades.
* Helped Keith at MIT with Qlogic HBA firmware upgrade.
* Still working to get StorageTek to make good on replacing the Ultra 10.
* LIGO SAN testbed:

After much assistance from LSC/Sun to identify the problem (a SAM vs. Sun FC driver problem) SAM-QFS has finally mounted and unmounted a tape!!

(Al Wilson)

* Released BB for LHO.
* Setup BB for LLO.
* Learning AIDE as a free alternative to tripwire for intrusion detection.
* Upgraded LHO, LLO, MIT, DEV, and TEST to the latest ldas-linux patch set including openssh.

(Stuart Anderson)

* Pushed new LDAS pre-release versions to LHO, LLO, and MIT. This involved finishing the upgrade of all LDAS computers to openssh-3.1p1 for security reasons.
* Investigating the use of VPNs to solve the inter-LDAS Database communication problem.
* Moved the LDAS archive server from the CACR network to the new LIGO Gigabit Ethernet network at Caltech.

MIT

Livingston

(Shannon Roddy)
* Worked on the GC firewall configuration to allow db2 traffic in and out of LLO to Igor's machines.  There are still some issues, but as far as I can tell the problem is on the db2 machines and not the firewall.  I will follow up on this with Igor.

Hanford

Data Analysis Activities (Lazzarini)
Mendell:
For The Weekly Report: Apr. 18, 2002; Data Analysis Update:

1) Updated the knownpulsardemod DSO to handle the new version of the LALUnitPair data structure. Ran tests in stand-alone mode, check the code into cvs, and ran test on the LDAS-TEST system, verifying the this code runs correctly with the new prereleased versions of lal, lalwrapper, ldas.

2) David Chin reports that he has verified that his new clean locked segments posted Apr 6 are valid. I will regenerate SFTs on the E7 data at the sites once the new release of lal, lalwrapper, and ldas is pushed to the sites.

3) Currently updating job scripts to run with the new prerelease of ldas to further test the system.  I will especially be testing the ability of  the new release of ldas to read in frequency series data from the proc structure of an SFT frame file.

General Computing (Wallace)
MIT:
(Keith)
-Installed new printer in NW22, created print queue, tested on various o/s's
-Troubleshot old laser printer 'tiny'
-Started investigation into tape robot

Livingston:
(Shannon)
-Reinstalled a windows 2000 domain at LLO.  This was set up a while back, but there was no redundancy designed into the domain.  As Microsoft software does, the domain server crashed the last time.  It also would not restore from the backups.  This time I have taken 4 spare machines that people have had replaced recently and set them up as servers with the domain data replicated between all four servers.  I have joined the windows 2000 professional machines into the domain so that I can manage software updates, hardware inventories, etc.  Also this allows people to have "roaming profiles" on the windows machines, if they want to utilize them.
-Received a couple of laptops in.  I am currently installing software on one.
-Spent several hours on the phone with Cisco tech support to try and work on some configuration issues with the PIX firewall.  I believe that long term, we will have to change the network topology and addressing schemes here at LLO to make full use of the PIX.  I have been discussing this with Larry.
-Installed a "CD Server" on the LLO network.  This allows me to copy images of CDs and leave them in a dedicated machine so that they are accessible by ftp, NFS, Windows Networking, www, etc.  This means that no one should lose any more CDs from now on.  They will still have to get the serial number for software, but they will not need a copy of the media.
-Installed a 4' high wall mount 19" rack in the new building.  This is to accommodate the patch panels etc. for the networking in the new building.
-Set up Norton Anti Virus so that it is centrally administered by me.  Everyone's virus updates etc are controlled from a central server now.  There is also a central quarantine and a central log.  Norton now notifies me if there is a virus found on any machine that I have set up in this manner.
-Ordered some spare batteries and chargers for the Dell laptops we have here.
-Installed a 160 GB hard drive in Marcel's computer.

(Tom)
-The network usage for Livingston can be found at : http://kahuna.net.lsu.edu/mrtg/ligo.html

Hanford:
(Larry)
-Working on the WAN issue. So far we have received some quotes from NoaNet and Albert is working out the issue of connecting to the Internet2 system.  Technically things are looking positive. There are a number of items that we still need to work out but so far it looks like NoaNet will be able to accommodate us on most of them.

CIT:
(Mike)
-Rebuilt two PC's and reloaded OS and General Computing Software for visitors that started on 4-15 and 4-18.
-Moved equipment around by replacing monitors and computers, for two visitors that started this week.  Reloaded OS and GC software on three Laptops.
-Went through Linda T.'s Laptop and corrected multiple software errors and added upgrade patches plus service pack 2. Everything seems to be running fine for now.
-I have been continuing to work on updating our list for the PHP webserver database; I just about have this done as far as the PC's go.
-Larry and I ran new cable drops to new control room in the sub basement conference room at bridge annex and one office.
-Had to reload a computer due to a virus that corrupted the OS. I restored this from a Ghost image.
-I had a lot of onsite user support this week that included networking, printing, e-mail, software and virus problems that I had to work out with users.

(Veronica)
- LIGO website: made yet another version of the new LIGO Science Links webpage. Added several links that were left out. Posted various updates to the LIGO website.  The LSC website has been transferred to a web server of its own; I went through the scripts to make sure everything runs smoothly, the link structure is preserved, and that nothing is left out.  Posted more LSC March meeting talks.  Working on the LIGO Policies and Procedures website.  Meeting with Ryan about the new LIGO Press Kit website; started working on the website layout.
- CaJAGWR: posted Tinto's talk as video and pdfs. Updated the seminars page.

(Lisa)
- Fixed the php installation on vega.  Restored the inventory system to that.  Mike has been actively loading it with accurate data.  This still needs some work regarding how mac addresses are handled.
- spent the majority of the week working on the mailserver vacation problem -- this has involved quite a lot of troubleshooting regarding dependencies in the development environment that don't show up in any of the documentation.  The problem with the vacation messaging has shown up on another of other platforms, but the general UNIX community is stumped about how to fix it.

(Larry)
-Back to working procurement issues. Foundry still owes information on a purchase from last year. Trying to get a double charge from ITS taken off. Placed, multiple computer and equipment orders for different groups. Working on a order of new units for the 40M.
-Tried to spend some time working on the vacation problem but have not been able to get much done with it other than running tests for Lisa.
-Restored a number of directories for different people. The backup system Lisa has in place saved quite a bit of time.
-Worked a number of cable issues. Switch cables and cables for the new control room.
-Windows XP has been a topic of discussion and found so far that it does not work well in our invironment. There are network, wireless, driver and application issues. Presently, the sysadmin group still recommends using Win2K if one needs to run under Microsoft.
-The group is working on changing the wireless setup. Working on setting up a standard configuration so the user will have minimal changes to make when going from one site to another.
-Working a couple of security related issues. Mostly viruses and some other minor incidents. After talking with ITS and their problems, we've been going pretty good on keeping the number incidents down.
-Working on documentation for a number of items. The GC policy has a few changes to be made but so far it is looking pretty good.

LIGO II/Advanced R&D (Sanders)

From: GariLynn Billingsley <Billingsley_G@ligo.caltech.edu>

Homogeneity Compensation - Goodrich has delivered the 25 cm sapphire blank with compensating polish.
I've measured the homogeneity of the piece.  The good news is that they have compensated the inhomogeneity of the piece. See the image at http://www.ligo.caltech.edu/~coreopt/GoodrichComp.JPG  This represents the central 150 mm diameter of the piece.  The measurement is through side 2 (see below) reflecting off side 1 and back through the bulk.  I have not subtracted side 1, yet, this is the situation where the homogeneity appears best.

See the Goodrich data at: http://docuserv.ligo.caltech.edu/docs/internal/C/C020137-02.pdf  (yes the first page is blank..oops.) I believe they have subtracted surface 1 in this view.  The blob at 8 o'clock may correspond to what I measure at 12 or 6 o'clock.

The bad news is that the piece appears badly scratched, either that or it has something on the surface that doesn't clean with acetone and methanol.  The surface specifications were waived in this instance because the piece has several bubbles breaking through the surface, Goodrich can't possibly control the bubbles.  However it is interesting to note that most of the "inhomogeneity" now comes from the scratches and circular machining marks.

The other bad news is that they appear to have confused which side they should be working on.  What was a nice 4nm surface on side 1(former) is now the compensatED surface (the new side2) This is proven by the characteristic defects at the bottom of  both upper images at http://www.ligo.caltech.edu/~coreopt/SurfacesPostComp.JPG
This image shows the clockwise change of the surfaces
Surface 1 before Goodrich (upper left)
Surface 1 after Goodrich (now surface 2 the "compensated" surface)(upper right)
Surface 2 before Goodrich (lower right)
Surface 2 after Goodrich (now surface1)

It's interesting that (speaking currently now) the compensating polish compensates for an error polished into Side one (did they try compensation on this surface at one time?), yet the specification calls for the side one data to be subtracted from the inhomogeneity. The exact text of the specification is:
 

"Figuring of surface 2 is intended for compensation of bulk inhomogeneity of the index of refraction of the mirror blank. There is no explicit requirement for the surface alone, only in combination with the bulk material. The optical path difference of the surface/bulk is measured in transmission through surface 2, passing through the material, reflected from surface 1, passing again through the material and again in transmission through surface 2. All requirements under this heading refer to this double pass measurement.

The real contribution of surface errors on surface 1 are removed from this measurement using an independent phase map of surface 1."

I will be in touch with Goodrich regarding these results.

Silicate bonding  - Heavy Glass
Bonded four 1/2" dia. pieces of heavy glass (#24935 from Viox) to fused silica substrates, using a silicate solution.  The parts were not flat to the 1/10 wave specified, so, about a couple of hours after bonding some separation appeared.  Two of the bonded parts were taken apart 4 hours after bonding. I will attempt to correct the flatness on these pieces and re-bond them.  The remaining bonded substrates will be cured for some time before being tested for strength.

Suspensions

• Janeen and I have been working on the final drawings and assemblies for the prototype Mode Cleaner suspension.
• Norna, Janeen and I have been looking at the parameters for the Recycling Mirror suspension.
• At the April SUS design telecon we discussed whether or not the rough Quad should come to Caltech this summer. A final decision on this has been delayed until next month.
• Norna and I met with Mike Plissi, Russell Jones and Alastair Grant in Glasgow to discuss the details of my visit in May.

Mark Barton

Added the corrected thermal noise code to my triple pendulum model, bringing it up to date with the quad model.

For additional information about this report, contact sanders@ligo.caltech.edu