Weekly Report for Week Ending August 8, 2002

The LIGO Executive Committee Agenda for Monday  August 12, 2002 will be:

 (Meeting time: 10:30 am Pacific Time)

Open meeting 10:30 - 11:30

1. Announcements
2. LSC Issues (Weiss)
3. Comments on Weekly Report
4. WBS 1 LIGO I Construction (Lindquist)
• Field Change Orders/Contingency Liens/Change Requests
5. 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)
6. WBS 3 and 4  Advanced R&D and LIGO II (Sanders)
7. CHANGE CONTROL BOARD/TECHNICAL REVIEW BOARD SESSION AS NEEDED

                        This meeting will discuss CCB queue in preparation for future meetings

Special Items:

Special Announcements:

Weekly Report Highlights
 

LSC Issues (Weiss)

no report

LIGO I Construction/LIGO Laboratory Administration (Lindquist)

LIGO Operations--Administration

There was a site teleconference held on Thursday, August 8, 2002. The following issues were among those discussed:

1) Nile Virus Situation in Louisiana--minimize work outside, avoid dawn and dusk work outside, acquire and provide protective clothing.  With regard to risk being small, statistics don't cut it.  LIGO is expected to be good steward of public funds provided.  Some things that we can do.  Make sure that we have a healthy fish population in the ponds.  Primarily along the y-arm there are some areas that are swampy that could be filled and dried.  Oil sprays are effective but have to be reapplied after every rain, and it rains so frequently that it is not practical.

2) Finishing and Furnishing Staging Building at Livingston--Draft RFP for time and material contract to finish and furnish the offices at Livingston has been prepared for review.  Physical Plant people recommend as much quantization as possible.  Also supposed to have a drawing of the proposed office configuration.  Only thing received so far is a brief statement of work.  Action #106 retained open.

3) Telescope Building--may need to have an architect that has access to a mechanical engineer.

4) Traffic Control at Livingston (New Action #112)--Need to investigate approach for Livingston to control traffic and increase security.  There are local security companies that can make an assessment and provide a bid.  At Hanford a gate with two arms located just to the OSB side of the Laboratory Building is proposed under the control of the control room.  One objective is to keep traffic as far as possible from the interferometer.  Key issue in Livingston is geography for parking.

5) End of July Costs and Budget--From a cash flow point of view, at the end of September we should have 5.5 million left to help with expenses during the first month or so of FY 2003.  However, it is emphasized that these funds are all spoken for.  Items have been deferred that must ultimately be covered by FY 2002 budgets.

6) Outreach--budget for incremental outreach was zeroed when the five year budget was reduced from $175 million to $160 million after direction received last year from the NSF.  The budget for incremental Outreach is still zero in current budget for FY 2003.  This needs to be worked (Action #113).

7) Livingston Staging Building HVAC--Finger pointing.  System needs to be balanced, and we are getting the system balanced.  We will then negotiate to retain compensating funds from the contractor.

8) Livinsgton Staging Building Auditorium Floor--going to withhold value of floor from retained funds.  Will be negotiated with contractor.  Estimate $30,000.

9) Hanford Laboratory Building--LSC meeting in Hanford in nine days...still do not have air conditioning, carpet may be about to happen, electrical still to be done.  Completion of facilities sufficient to support LSC meeting is going to be close.  Will also need to be cleaned.

10) 'Gator for Livingston--Request from Livingston for some kind of inexpensive vehicle for carrying stuff around the swamps (Military version available from John Deere).

The list of current actions revised to reflect the status of open actions assigned through August 8, 2002 may be found at ACTION LIST.

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

• No report (USA-FEPP, Portland, OR).

>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

• No report this week.

ACTIVITY

• Continue to reorganize files in the DCC.  Electronic document activity steady.  Efforts for packaging/shipping/FedEx was a bit more involved than usual because of materials being mailed to the sites.
  DCC Activity


WE 08/08/02	Packages	Faxes
In	34	21
Out	16	31

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

Press here for ACCOUNTS PAYABLE HISTORY DATA .

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

• Working on the change orders to Praxair and Excel Group.
• Working on the wording for the Time and Material Contract for LLO [Finishing and Furnishing].

•  The reports as of the end of July for Construction, Operations and R&D accounts have been completed and are available on the network. A modification was made to the Operations report to show costs paid for Contract Labor on a separate line.
• We have been notified by the Property Services Department that Fabrication accounts should not include any "Equipment" Expenditure Types.  This is because including Equipment Expenditure Types in Fabrication accounts creates problems with the computation of depreciation.  Please use the "Supplies-Allocable" Expenditure Type when purchasing equipment items that are charged  to a Fabrication account.  The Equipment Fabrication Policy which was recently issued by the Finance Department is supposed to be modified to indicate that Equipment Expenditure Types are not to be included in Fabrication accounts.  In the Operations group of accounts, Fabrication accounts can be readily identified because they all have the Award designation NSFLIGO.FY02CA.  All Construction accounts that are currently authorized to be used are Fabrication accounts.
• A fabrication account for the LDAS Computer Server farm in the Synchrotron has just been approved - LIGO.DATCA 1.5.1 NSFLIGO.FY02CA.
• We will be submitting a Fabrication request for the WAN network at Hanford. .
• Financial reports can be found at: http://docuserv.ligo.caltech.edu/~fireport

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

• Received notification that request for one year extension of Advanced R&D Grant PHY-9801158 has been approved.

• No report (vacation).

SUPPORT (Baldon, Torres, Lloyd, Tischler)

>Irene Baldon

• Processed the paper work for twenty-four (24) new/revised trips and there are nineteen (19) trips which are in various stages of completion before ticketing can be done and paper work completed.  Continue to work on a couple of upcoming relocation trips and worked with Ed Chargois for their household moving.  Also continued to work on a number of long-term visits which will require long-term housing, etc.
• Completed eleven (11) Expense Reports and there are twenty-five (25) reports yet to be done.  Contacted a couple of travelers who have long-term outstanding Expense Reports and asked for their cooperation in sending me their receipts so that the trip(s) in question can be closed.
• Reconciled fifty-eight (58) P-Card items last week which required numerous phone calls to hotels in order to track down which traveler incurred which charge and pulling each traveler's file to assure that charges are correct for each airline fee.  Assisted a few travelers with their questions in regard to their P-Card and/or reconciliation.
• Worked with Criselda Rodriguez-Brodeur (P-Card Office) and staff on number of issues and problems which arose this past week.
• Worked on the preparation and distribution of the Travel/Vacation Itinerary for August 5, 2002.  Performed normal recording and filing associated with Travel and Reimbursement.
• I continue to work with Dr. Libbrecht and the SURF student in regard to their Field Trip to LHO as well as performing miscellaneous duties as requested by various members of  the LIGO Project here at Caltech and 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.

• Processed the usual incoming invoices for payment.  Tracked and followed up on invoice problems, and reviewed and recorded payments processed by Esther for the week of July 29.  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 on-line.  Continue to monitor contract and blanket order encumbrance and notify task managers when supplements are needed.
• Attended training class on Oracle 11i upgrade.
• Jim continues with data entry in the LIGO database and helping out in the DCC.

Oracle will be upgraded to the 11i level and the system will be shutdown campus wide next week August 16-22 for the upgrade. For those of you contemplating a large purchase or have an invoice that will require payment during this time period, it is suggested that you submit your requisition(s)/invoice(s) no later than 5 PM, Wednesday, August 15.  Note that for emergency procurements, our group will have a block of numbers pre assigned and will be able to prepare and order off line. -pel]

>Rita Torres

• Spent most of my time this week on things LSC:  Input close to 50 names for experimental groups with LIGO, responded to queries and did updates associated with the data, and began to input codes for the various working groups.
• Placed several P-card orders, and also reconciled after obtaining the documentation.  Chased flanges missing from a pump we ordered.  Requested price and delivery info from several vendors for optical items.
• Prepared the returns to CDW-G for the duplicated orders.
• Sent out notices to Surf students regarding exit eye exams.  Most students are now scheduled for the exit exams.

• Resolving travel issues.  Obtained quotes from various printers for upcoming projects.  Work on brochure text/images.  Approval of folder design pending, then off to production.  Scanned more images for our gallery -Veronica assist.

Advanced LIGO (Frey)

Progress Period from 08.01 to 08.08

Accomplishments:

• Requested opportunity to attend the Primavera User's conference with a P3e specialty track. October 20 - 23.
• See (http://www.primavera.com/events/conference.html)
• Weekly Advanced LIGO Project Controls meeting was not held this week.  Next meeting 8.16, see below.
• Advanced LIGO MRE Proposal (Highest Priority)
• Per direction of Gary, Dennis, David, and Phil, I am updating the presentation from November with most current data for meeting scheduled for August 16 at 1pm at SCR.
• Continuing the development of the Cost Estimate.
• The following is a summary of status by sub system:
• COC - Work on action items per second review continues.  Garilynn has committed to inputting the most significant cost changes prior to the 8.16 meeting.
• PSL - Data from Peter regarding the coding of LIGO Lab and LZH scope is being processed.
• AOS - Work on action items continues.  Next meeting date has not been scheduled.
• IO -  Work on action items continues.  Updated IO action items per progress reported by Daivd.  Sent file for him to work with completing the WBS dictionary.
• SUS - Continue to process update data provided.
• SEI - Work on action items continues.  Next meeting date has not been scheduled.
• ISC - Mike continues to work on the WBS dictionary.  No comments as of 8.08.02 on the draft detailed schedule and no WBS dictionary.  Input of the ISC cost sheets continues.
• LDAS - No data / feedback from Albert to date.
• 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 08.02.02 and  posted to site.
• Sent out update data requests for progress as of 08.16.02.
• Continue to update the LASTI Schedule and incorporate any changes.
• Updated the plan with progress as of 08.02.02 and  posted to site.
• Sent out update data requests for progress as of 08.16.02.
• Project Plan for the 40-Meter Lab Upgrade continues.
• Updated the plan with progress as of 08.02.02 and  posted to site.
• Sent out update data requests for progress as of 08.16.02.
• Cost Book Tool.
• ROSTER DATABASE:
• Followed up with Rita regarding working group coding input and this will be complete no later than the 12th.
• Updated the Roster Database meeting minutes and distributed for comment.
• Posted files and import database changes developed by BK.  Email utility is now being evaluated by management and general computing.
• COST BOOK DATABASE:
• Continue to verbally communicate the username and password to users.
• Gang of 5+:
• Nothing new to report.
• DCAA - Work continues on the incurred cost audit.
• All quiet on the Western Front.
• 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.
• Changed design to align with LIGO home page.
• See http://www.ligo.caltech.edu/~tfrey/index.html

• Next weekly Advanced LIGO Project Controls meeting is scheduled for August 16 at 1pm at the SCR.  Subject:  MRE Cost and Proposal Development.
• 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 finish input of coding for cost items with information provided.
• AOS - Continue inputting changes to and prepare for next meeting TBD.
• IO - Continue inputting changes to and prepare for next meeting TBD.
• SUS - Continue inputting changes to and prepare for next meeting TBD.
• Will complete update the plan with progress through 5.31.
• Add cost data changes received.
• Request progress data through 8.16.
• SEI - Waiting for information from SEI group per their action items.
• COC - Work on action items by Garilynn continues.  Will begin schedule changes when data received.
• ISC - Will complete input of cost data and incorporate any changes and comments.
• LDAS - Will work with Albert to develop details.
• 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 08.16.02 and  post to site by the 21st.
• Will Continue to update the LASTI Schedule and incorporate any changes.
• Will update the plan with progress as of 08.16.02 and  post to site by the 21st.
• Will continue updating the 40 meter schedule and incorporate any changes.
• Will update the plan with progress as of 08.16.02 and  post to site by the 21st.
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.
Gang of 5+
• Will continue to work on procurement guidelines.
• Will continue to provide support to PL for DCAA / NSF IG 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.

• The Operations Work Plan was scheduled to be submitted to the NSF August 1.  Still waiting for some material.

The following change requests have been submitted:
 

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

• Various personnel/payroll /HR related work.

Quality/Safety (Tyler)

No report.
 

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

Summary of Commissioning Activities at LIGO Hanford Observatory (compiled by F. Raab)
-------------------------------------------------------------------------------------
(see ilog for details - if it's not in the ilog, it didn't happen...)
 

This was a frustrating week with no progress on commissioning despite a lot of hard work. Eventually some issues were sorted out which should allow better progress next week.
 

2K IFO Repair
-------------
We had generally good locking behavior for the machine and were able to run in common mode most of the time when there was no downtime for other work. The main issue was to get light levels up at the antisymmetric port to hopefully return us to previous sensitivity above 300 Hz. Then we would investigate alignment issues. We know we have some clipping of beams coming out of the vacuum system in the current alignment that may need attention prior to S1. We also see some "mechanical-looking" noise peaks in the 100-300 Hz range that come and go. Normally we would have liked to clean this up first, but with limited time before the S1 run we did not feel we could linger on this unless it was a proven show stopper. We ran into more problems than expected trying to get the new EOM shutter configuration implemented. This has now been weeded out. During running time, we encountered some problems with strong transients that were traced down to voltage fluctuations in the PZT mirror prior to the mode cleaner. The reflected spot from MC1 noticeably hopped in sync with the transients. Eventually Josh found that this system had been acting up since the quake just before the wire-cutting incident that stalled S1. The PZT control board has been replaced and behavior is much improved although we are attentive for any further problems.
 

4k IFO investigations
---------------------
The effort ot implement common-mode servo has been set back by confusing measurements of transfer functions. Eventually it was found that we had been plagued by saturation in the mode cleaner DSC for MC2. This was relieved by jumpering out some dewhitening filtering. Eventually we may need to restore to higher filtering for noise issues, but we should be able to make a lot of progress with the current level of filtering. Work continues on.
 

We have had a stability problem with timing on the 4K that was improved by reconfiguring clocks.
 

FACILITIES
------------------
Carpeting is being installed in the office wing. Carpeting will be
completed Sunday evening in the auditorium. All the audio/visual equipment
is on hand except the podium. The system has the capability to be operated
manually without the podium, if need be. The bathrooms are complete. The
HVAC system is still not operational, it could be a sticky situation if it
is not complete by the LSC meeting.
 

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

HEPI: Final efforts have been made to pick up all redlines and drawing improvements for the HEPI Drawings. (sheets 1-32) All of the sheets have been forwarded to P&N (the fabricator from Houston) and the first batch of parts should be completed by the end of this week and received by early next week. We have every indication that all is going well with the fabrication. The machined springs are being fabricated in Lafayette, Louisiana by Digital Machine. The promised fab date is this coming Monday (the 12th) and they have given every indication that they are right on target. All of the drawings for HEPI and the machined springs are backed up on Basin due to the potential of hard disk crash. (which was the case in fact. Shannon, Tom and myself spent a good amount of time recovering and rebuilding the operating system with no loss of data) All of the parts, drawings, and PDF's are there as well as Autocad translations under the following three folders: actuator, hydraulic_acuator, and DSCW D020408 (double start Counter wound) They are in my home directory ~mhammond on Basin and are available for read access. The pieces parts and instruments that we have accumulated for Advanced LIGO will have a new home in the new building in the back storage room. You can contact me if you need information on any of the equipment. First batch of parts for the actuator is expected next week. Also promised on Monday is the set of 8 machined springs for LASTI-HEPI. We've issued a PO to the machine shop doing the springs to assemble, braze and plate the springs for which they promise an additional 2 weeks time. HYSPAN states that they will ship the bellows on Aug 15. Hammond, Kern
 

Work continues on the implementation of the PEPI actuators on ITMx and ITMy in preparation for the science run.
 

CDS: Finished installing Big Brother software on all the CDS Sun workstations. Edited the conf file to set alarm limits. Studying the working of Big Brother to add temperature monitoring of sun workstations to the web reports. Created a web - perl - epics interface to have a big brother medm screen showing the status of CDS SUN WORKSTATIONS. Created a database file with 150 channels for the cds big brother system and loaded it on the pem processor in the mass storage room. We now have a centralized medm/epics monitoring of the SUN worksations on CDS. Added 4 more channels for PEPI to the master.config file and rebooted the DAQ. Changed the SUN workstations in the control room to 24 bit color mode. Added more documentation to the CDS Redbook at LLO. Chethan
 

We continued the characterization of MMT3 motion, taking into account HAM1 table motion. We made two new MMT3 e2e boxes for this purpose. The first box takes HAM1 table motion as the input to the suspension point and computes optics motion relative to ground. The second box takes ground motion as the input to HAM table box, which is part of the MMT3 box, and computes optics motion relative to ground. Currently, the HAM box uses seismic correlation measured at LHO. We are planning to make seismic coherence measurement at LLO so that the HAM box can take more realistic input. The new MMT3 boxes run under the new release of e2e (version 1.7.7).  Dodda, Yamamoto, Yoshida

Detector/Technical Support (Shoemaker, Coyne)

Contamination Cavity # 1

It is pumping and baking is in progress as right now.

New Lab at RSE

Cavity #3 Reference Cavity still pumping down. RGA scan taken and the sum of masses

(amu:41,43,53,55 & 57 ~ 4E-12 torr. It is considered clean cavity.

Cavity waiting for the laser to be aligned into the cavity.

Cavity #2 Test cavity

This cavity is pumping now.waiting on optics installation and laser alignment.

OTF Lab

The refurbished 100mw NPRO S/N 267 Laser from Lightwave is running now on the new optical table used for the transmission test setup. We are continuing measurementof transmission and reflectance of some partially transmitted mirrors and beam splitters from REO.

I have finished refurbishing another vacuum pump unit and it is being used to pump the cavity#1

Laser warning signwiring and assembling is in progress.
 

40 Meter Interferometer (Weinstein)

no report

Thermal Noise Interferometer (Libbrecht)

no report

LASTI (Zucker)

no report

Data Analysis and Computing (Lazzarini)

Simulation and Modeling (Bhawal)
E2E weekly Physics meeting
-------------------------------
Biplab presented some results on degeneracy of the recycling cavity and comparison
between FFT and E2E outputs. Bill Kells, Hiro and Biplab discussed about proper
ways of making such comparisons and some anomalies in results.

PC Linux for e2e simulation
-------------------------------
(Hiro)For the fast simulation of e2e, multi fast (~2GHz) CPU PC running linux was
decided to be purchased. The final choice will be a quad CPU unit at 1.7GHz XEON.
This will run 4 times the speed as compared to 400MHz SUN box. The speed benefit
will be more for running multimode case, and even more when a new simulation code
will be implemented, which will utilize thread even more extensively.

Mechanical simulation at LLO
-------------------------------
(Hiro) The e2e package was installed at LLO, and Sany and Raghu worked to model
the HAM table on which there are several mirrors hanging. This setup is used to
understand the motion of mirrors due to the seismic motion together with SEI
characteristics. The measurements will be used to validate the simulation of
mechanical parts and to generate the inputs for the simulation to make it more
realistic. Some of the SimLIGO boxes were modified for this use.

COC phasemap
-----------------
(Hiro) Basic software development is almost over, and the actual mirror data
will be used to generate the full map and to calculate the mode decomposition
matrix. Adlib needs to  be modified to accept arbitrary mode mixing matrix
and to generate necessary data file on demand.

Code development and maintenance
----------------------------------
(Hiro) Internal code developments to add new capabilities and improvements of
the existing modules are going on, especially the FUNC modules - support
of bundle inputs and outputs and speed improvements.

(Biplab) A variant of the Han2k model, the Han2kFP model specialised for studying
single-arm locked state of the full LIGO was modified so that multimode
studies could be made using it. Bill Kells requested this. This new version
with a simple README file is now available for download from our homepage.

(Matt) Began restructuring of internal E2E field model.

Alfi
-----
(Bruce)
- Fixed several bugs and implemented several small features involving ease
   of use in creating connections and manipulating them.
- Continuing work on implementation of repositionable ports in the
   external view of a node.

(Melody)
- Working on the automated tester for alfi5. Evaluated other testing package
   frameworks. Found one that is able to record the events from alfi5.
   Also fixed some PRs.

LIGO Data Analysis System

Software Systems (Maros for Blackburn)
Software Systems (Edward Maros for Kent Blackburn)

This week saw the release of LDAS 0.4.0. It has been installed at LHO, LLO and MIT. This version of LDAS will be the one used for S1. No new features will be added for S1.

Work has started on the creation of two new commands to LDAS to support the GriPhyN Project. These commands are dataStandAlone and putStandAlone. They effectively break the dataPipeline commnad into two parts. The dataStandAlone retrieves frame data and does some processing and data reduction. The putStandAlone retrives the GriPhyN results and ingests them back into LDAS. The code has been written and is currently being tested on some local systems.

Work has also started on supporting a single server in the datacondAPI to communicate with the wrapperAPIs. This is being done to reduce overhead and increase system reliability.

The frameCPP library continues to be worked on to bring it into conformence with the Frame Version 5 spec.

Efforts continue to increase the through put capabilities of the frameAPI. Currently, code is being reviewed and excessive mutex locks are being removed.

The datacondAPI's documentation for linfilt has been expanded in responce to user's request for clarification. The abs(), real(), and imag() actions are being modified to preserve the input type for the output type. This feature will not be available for S1.

LDAS source code continues to be corrected to fix minor problems.

Hardware Systems (Anderson)
No report received (Anderson is out of the country through 23 August)

Lazzarini: 2 2.5 TB RAID units have been ordered (1 ea for the LDAS installations at the observatories). These should be ready for S1 to hold reduced data sets, etc.

The same technology is planned for a ~20TB cache system at LDAS/Caltech to support spinning-media copies of the S1 data for user access without relying on HPSS. In addition, this cache will be enable us to evaluate SAM-QFS performance as we make a final decision on this product.

In addition Bayer at MIT is also ptesting a prototype 2.5TB device. It will eventually be installed at MIT to augment its LDAS disk cache volume.

Data Analysis Activities (Lazzarini)
Shawhan:
* Revisited veto optimization for E7 inspiral search.  Evaluated the
efficiency/deadtime for Sergey Klimenko's "WaveMon" veto events, comparing
to the absGlitch and template-based veto events.  Tracked down a bug reading
which caused the deadtime to be substantially overestimated for absGlitch
events, and also interfered with the efficiency calculation.  The upshot is
that the veto performance for L1 is better than previously thought.

* Helped Carl Ebeling and Nelson Christenson with software to evaluate
potential veto channels for the low-noise data collect at LLO on July 11-12.

Creighton:
T. Creighton finished writing a multi-detector injection program, and
debugged signal generation code for pulsars in binary systems.

Yakushin:
Writing lalwrapper part of the correlation DSO

Weinstein:
- Running more simulated burst injections
  into E7 playground, at ldas-mit
- Ran full E7 H2/L1 double coincidence data through three
  burst DSOs at ldas-mit,
  dealt with bookkeeping and database complications.
- Running tests on various burst DSO modifications.

Katsavanouidis et al:
E7-Bursts work continued as follows:
o Stefan: vetoes generation on entire E7 set completed and
  documented. Veto events are stored in appropriate DB table.
  Bookkeeping information is on MIT's CVS repository.
o Stefan: continued debugging and testing MICH_CTRL/AS_Q veto
  routines within the event tool.
o Laura/Jacob: completed re-analysis of TFClusters DSO (on
  playground data) in separate bandwidths. Work reported on
  2002-08-06 Bursts conf call.
o Erik: looked at E7 software injections (ZM/sine-gaussians)
  in order to establish sensible threshold and sensitivity
  for the excess power statistic DSO. Work is in progress.

Immediate goals are for the next 7 days:
o run the analysis defined on playground to the entire E7 set
o work with Sam Finn and Peter Saulson on preparing the Bursts
  E7 final report.
 

General Computing (Wallace)
MIT:
(Keith)
-Installed star office on several machines
-Configured networking on several laptops
-Ordered several more IP addresses

Livingston:
(Shannon)
-Received a report from Larry that phillip.ligo-la.caltech.edu was an open mail
relay.  I will be blocking this machine at the firewall.
-Attending the Usenix conference. I learned some valuable stuff in the
VPN class.  This builds on what I have been testing for LDAS, and could
be useful elsewhere, such as "road warrior" VPN access to GC.

(Tom)
-We are continuing to work on the upgrade from Solaris 8 to
Solaris 9. So far things are going smoothly, and there have
been no major compatibility problems.
-We have ordered a Sun V120 to test in a server application.
-We are discussing with Bell South the possibility of improving
the lines for our analog modems.

Hanford:
(Christine)
- The LHO network has been upgraded to 10 Mb ethernet, unfortunately
there are errors and the performance is not what we had hoped.  I'm
still working with PNNL and Larry Wallace to try to improve the
performance and eliminate the errors.  Right now PNNL believes the
errors are caused by running ethernet over a distance of 26 km, anything
over 10 km is outside the recommended specs.  If we can't resolve the
problems we will have to go back to T1 next week.
- Continued network setup for the LSC meeting.  Projectors and laptops
on loan from the other sites have started arriving.  Allocated 125 IP
numbers to be used by DHCP for the LSC.
- Provided the usual user support for e-mail, file access, and printer
problems.  Purchased some more network supplies for the new building and
LSC meeting.

CIT:
(Veronica)
- LIGO website: working on a webpage of commonly used e-mail lists.
Working on an updated webpage of LIGO-related experimental groups.
Posted various updates the LIGO website.
Provided user support for the GNATS database.
- LSC website: posted various updates to the LSC August meeting
announcement page.
Reworked the list of talks to be presented; as it grew out of proportion,
separated it into past and future talks.
Updated the MOUs list.
Working with Rita and Irena on a new document for LSC participation
count and FTEs.
- CaJAGWR website: processing videos of the last two seminars, to be
posted.

(Lisa)
- Got quotes for an SSL accelerator board for the webmail server.
- Began working on the tape restoration project.  We are restoring old 8mm tapes
and then writing the data off to AIT-2.  This also allows us to generate an list
of all the files restored.  Trained Mick and Wendy on how to do this.
- Changed the Matlab startup scripts so that when the licenses on sirius are all
taken matlab will fail over to the ITS license server.
- Ran more patches on algol to try and fix the xlock problem Szabi was having.
- Updated the firmware on all of the Orinoco access points.  This should improve
the wep and allow visitors running XP to connect.

(Mike)
-Worked on a LapTop then ghosted it for loaner pool.
-There was a problem with the Roster webpage.
This turned out to be a licensing issue that is corrected.
-Loaded MatLab software for two surf students.
-Upgraded Mike Smiths computer. This turned out to be a big job for I had to
flash BIOS and download all drivers for intergrated hardware. Then I
had to reload Mathematica, Norton, Acrobat distiller and print drivers.
-I had a lot of reconfiguring to do on Clevelands computer due to an upgrade
from win98 to win2000. This included reloading software and installing print
drivers. Then there was some networking issues that I had to correct.
-Ghosted Ed's computer and am helping Wendy on upgrading his computer to
win 2000.
-Ghosted Rita's computer to get her ready for an upgrade to win 2000.
-Working on antares but have been coming across a few
problems but am with Time Target and WebBase and have corrected these problems.
I ran a test on the new Antares Server this morning, which failed. I still
have some database issues and more testing that have to be worked out
before I can swap this server out.

(Wendy)
-ghosted and upgraded machines to win2k with Mike
-did one clean rebuild to win2k
-helped users with minor computer problems
-working on documentation for upgrading to win2k, with the problems we've
encountered and how we got around them

(Larry)
-Been a busy week in the procurement and financial arena. A number of
maintenance contracts have been renewed with two more in the works. Setup a new
account with Florance for the WAN connection for Hanford. This should be out
soon. Tracking a few procurements for the LDAS group .
-Worked with Veronica and Mike on Solaris server configuration. The gnats s/w
will be moved from a LDAS box to a GC server. Veronica will be the new caretaker
for the gnats system to be installed on the GC server. The installation should
wrap up in a week or so.
-Installed IDEAS version 9 on to sargas. The major problem on the install was
getting to talk to a live person at EDS which now own IDEAS. Since we had not
upgraded for the past few years they dropped us off their maintenance list which
caused problems in getting licenses for the latest version of IDEAS. There is
still some configuration that needs to be done but I will need one of the main
users to get involved with that part of the install.
-Worked more on the cabling of the server room. Setting up a new KVM switch
which is working well so far. Also, rebuilt another of the Solaris server units.
-Worked on the WAN installation for Hanford, remotely. This has been a real team
effort: Richard McCarthey, Christine Patton, Albert Lazzarini, John McCoy,
Cullen Tollbom and representatives of NoaNet, have all put in a deal of time and
effort on this project.
Presently, there appear to be a number of issues to be resolved. We've shipped a
newer router to the Hanford site which should take care of two issues; too many
media converters and more speed for handling rule sets. The present router hits
100% of cpu usage when the T1 line becomes saturated. Christine was going to
change the rule-sets to see if this would help lower the workload on the CPU.
Once the installation and changes have taken place we will run a few more tests
to see where we have to go from there, but down time should be minimal.
-Assisted a couple of SURF students with computer issues.
-Restored a number of files/directories for different people.
-Worked a couple of virus issues and a large number of spam issues.
We are blocking a large number of ISP's and domains. We are working on a list to
publish to see if there are exceptions that should be made on who we are
blocking. If you receive a 550 error on a e-mail you send to someone please let
us know so we can adjust the access list for that person.
 

LIGO II/Advanced R&D (Sanders)

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

2.2 AdLIGO PSL

        After last week's systems telecon, I discussed with Benno the schedule
for the intensity stabilization.  I suggested a rough schedule, which will
be put together later, in which we had broad agreement.  After going
through the schedule presented in last week's meeting, I will tie in the
PSL schedule.

Benno also told me that LZH have cracked the 100-W barrier.  Admittedly the
output of the laser is multi-mode at the moment but it is a significant
milestone.  Mode control apertures will be inserted in order to obtain
single-mode operation.
 

From: Janeen Romie <romie_j@ligo.caltech.edu>

AdLIGO Suspensions
Five local machine shops are working on our mode cleaner controls prototype suspension parts. We're still on track for a mid-August delivery on most items. Working on more design details.
Still working on osem procurement process.

Attended a second meeting with Norna, Glasgow, Phil, Mark and Szaby on eddy current damping.
 

From: Helena Armandula <ahelena@ligo.caltech.edu>

Advanced LIGO Coatings

SMA / Lyon
The coating lab is closed until the last week of August.
Jean-Marie has been manufacturing thin films on which the Ta2O5 is modified by doping. He tries to change Young's modulus in the film, expecting to improve the material's mechanical loss.
He'll be coating "Q" substrates, with what he thinks may be the best material combination, when the lab resumes operation.

MLD
Nb2O5 / SiO2 coatings are going to be annealed at 400º C following MLD's annealing procedure.
400º C seems to be the maximum temperature at which MLD's coatings can be safely annealed.

Wave Precision
Wave Precision (formerly GO) will deliver "Q" substrates next Monday (August 12th) coated with 30 layers of Ta2O5 / Al2O3.
The object of this coating run is to see if "Q" results differ between same coating materials coated by different vendors.
Previous "Q" results, indicated that Ta2O5 / Al2O3 films, manufactured by Wave Precision, had lower mechanical loss than Ta2O5 / SiO2 films, however, results from MLD's coating run (Ta2O5 / Al2O3) showed higher losses.

Most information on "Q" substrates as well as absorption loss results can be found at:
http://ligo.caltech.edu/~coreopt/AdLIGO/AdLIGOindex.htm

Interferometer data, before and after annealing of MLD's Ta2O5 / SiO2 coating run, can be found in the DCC (docspublic) under doc. #:
E020741; E02742; E02743 and E02744.

------------------------------------------------------------------------------------------------------
LSC LASERS WORKING GROUP
Minutes of telecon Aug 1 st 2002:
1) updates

LZH
- got 100W multimode operation of resonator with two laser heads for 360W of pump
light, no saturation of slope curve so far, did not try higher pump power because power
meter was limited to 100W
- put in quarz rotator rotator for birefringence compensation and brewster plate to force
polarized operation, this reduced output power by 5%
- plan to change resonator and insert aperture to optimize beam profile

Stanford

- power supply of Lightwave Amplifier had problems and was replaced by Lightwave
- during realignment of first edge-pump slab the beam hit the spectralon which caused the
slab to crack
- will use spare slab to replace the first edge pumped slab, and continue to work on the
triple pass of the second edge pump slab once the first one is back up

Adelaide (update from Jesper by eamil)

The news here is not too hot. We have determined that our super expensive
and specially grown crystals were not manufactured to our
specifications..and are not useful as they are. We are shipping them back
to
the manufacturer. We think that the problem cannot be corrected by further
polishing. Our special slab design is not very forgiving to errors in
manufacturing.
Where does this leave us?
We are ordering new material to cut new crystals, while hoping that we will
also solve the problem with the present ones. This means that in the worst
case we will have several good ones...and perhaps too many, but we feel we
cannot wait.
Still, we cannot avoid a delay of several months.
In the meantime we shall study thermal birefringe at lower power with an
imperfect crystal, and we shall also attempt to assemble the final
resonator, even though we cannot run it up to very high power.

next conference call: Sept 5th

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