Weekly Report for Week Ending September 13, 2001

The LIGO Executive Committee Agenda for Monday  September 17, 2001 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)

Special Items:

Special Announcements:

Weekly Report Highlights
 

LSC Issues (Weiss)

no report

LIGO I Construction/LIGO Laboratory Administration (Lindquist)

WBS 1.2 LIGO Operations--Administration

The following topics were discussed during the site teleconference on Thursday, September 13, 2001.

• The projected carry forward for Operations remains at $2.6 million.
• Florence is preparing a suggested set of ORACLE account numbers for FY 2002.  The intent is to use alpha characters as much as possible to make them easier to understand and remember.  Florence is checking with Finance to assure that we are following all of the pertinent rules.  A "strawman" will be distributed for comment.
• The Proposal Budget and Justification has sent (via FastLane) to the NSF last Friday.  We are still waiting for approval of our request for a no-cost extension.

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

• Nothing to report.

>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.  Linda will be out for several weeks but will be checking in with Cleveland periodically as well as keeping up with email during this period.

ACTIVITY

• It has been a busy week for processing electronic documents.  A total of 35 electronics docs were processed and added online.
• Two DCN's were processed, copied, and distributed.
• Progress continues on converting old account cost records to electronic form.

Press here to access the DOCUMENT CONTROL CENTER WEB PAGE.

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

Press here for ACCOUNTS PAYABLE HISTORY DATA.

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

• Working on Moon Security and Coastal Bridge, which were placed on hold due to the question on the account.  These orders have been placed verbally and are now in the process of being completed.
• Completed Butler and awaiting certificates and acknowledgement.
• Received two Triad change orders to move funds from one account to another.

• Prepared a summary of Available Balances in Construction Accounts as of August 2001.
• Worked on identifying charges related to Seismometer previously charged to FY2000 Management Reserve account.
• Prepared preliminary account numbering system for FY2002 accounts.
• Completed the Visitor Program account report for August.

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

• Nothing significant to report.

• The contract for the laser safety system at Hanford is expected to be awarded by Friday, September 14.  We are still attempting to have that done as a fabrication contract to remove the overhead charge.

SUPPORT (Wood)

• Processed the usual requisitions, invoices and receiving on-line. For more detail, see "Cost Schedule Control Systems" report by Esther

Cunningham.
• Tracked and followed up on invoice problems.
• Reviewed and recorded payments processed by Esther the weeks of August 27 and September 3.
• Monitored contract and blanket order encumbrance and notify task managers when supplements were needed.
• Continued with update of  PO Log books.
• Jim continues with data entry in the LIGO database and supports Irene (travel) in the mornings, and Linda and Cleveland (DCC) in the

afternoons.

A short report this week.  Spent most of my time chasing documentation for Pcard purchases.  Will have reconciled over 21 this period.  Placed a few more orders this week.  Did site trip updates.

• Due to recent events, travel has been hectic and most of my time has been consumed with tracking our travelers' whereabouts and making sure they are either OK, where they are, or providing some alternative method of travel (car rentals, trains, etc.)
• Processed the paper work for ten (10) new/revised trips (including Advance Checks written and hotel/car rental authorizations filled out and FAXed to appropriate vendors in various locations).  I have eleven (11) trips in various stages of completion before ticketing can be done.  Worked on several trips that were extensively changed or modified and assisted several more travelers with questions regarding their existing or potential travel.
• Jim Covington returned four (4) expense reports this week and has twelve (12) he is working on.  I completed seventeen (17) reports and there are nineteen (19) reports to be done.  I'm holding five (5) reports that need a check and one (1) that needs additional information from the traveler before submitting.  I spent a considerable amount of time contacting travelers who have very old outstanding trips still open.  I will continue to contact these and other travelers as time permits.
• Reconciled twenty-one (21) items on my P-Card, which required telephone calls to vendors who do not enter the traveler's name on their charges.  Assisted a few travelers with their reconciling and/or data entry.
• Worked on the preparation and distribution of the Travel/Vacation Itinerary for September 10, 2001.  Performed normal recording and filing associated with Travel and Reimbursement.  I continue to do MIT's travel to the sites for installation activities and also to assist them wherever possible.

• No report--vacation.

Advanced LIGO (Frey)

Progress Period from 09.07 to 09.13

Accomplishments:

• Weekly Advanced LIGO Project Controls meeting held Friday, September 7th at 9:00am at Small SCR.  Focus of the meeting will be the SUS Continuation of Second MRE Cost and Schedule Review..
• Advanced LIGO MRE Proposal (Highest Priority)
• Continuing the development of the Cost Estimate.
• Continue to pursue all other sub system schedules.
• 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.
• PSL - Work on action items per second review continues.  Completed BOE data and schedule tasks processing and issued reports to reviewers (Cost/ Resource Loaded Schedule and Detailed Cost Report).  Next meeting date has not been scheduled.
• AOS - Work on action items continues.  Provided BOE template.
• IO -  Work on action items continues.  Provided BOE template.
• SUS - Issued updated meeting minutes for comment.  Working with SUS group to incorporate current comments.  Next meeting date has not been scheduled.
• SEI - Efforts continue on action items.  Followed up with Marcel to schedule next meeting this month.  Next review date has yet to be scheduled.
• 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.
• Finished changes to the schedule requested by Eric Black.  Issued for comment.
• Continue to update the LASTI Schedule and incorporate any changes.
• Nothing to report.
• Project Plan for the 40-Meter Lab Upgrade continues.
• Nothing to report.
• Continue to test the Cost Book Tool.
• Continue to work with BK executing current action items.  Issued updated meeting minutes for comment.
• Continue to run tests on reports using other sub-system data.
• Mapping and formatting of OPS cost data for input on hold pending additional changes to budget data per NSF re-submit.
• 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

• OUT OF THE OFFICE ON FRIDAY THE 14th.
• Next weekly Advanced LIGO Project Controls meeting is not yet scheduled.
• 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 schedule next meeting.
• 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.
• SEI - Continue inputting changes and prepare for next meeting TBD.
• COC - Work in action items by Garilynn continues.  Anticipate schedule changes prior to next meeting TBD.
• Will import cost data and complete schedule integration.
• Will Continue to update the TNI Schedule and incorporate any changes.
• Will update the plan with progress as of 09.14.01 and  post to site by the 18th.
• Will Continue to update the LASTI Schedule and incorporate any changes.
• Will update the plan with progress as of 09.14.01 and  post to site by the 18th.
• Will continue updating the 40 meter schedule and incorporate any changes.
• Will update the plan with progress as of 09.14.01 and  post to site by the 18th.
• Cost Book Tool development continues.  (Highest Priority Task)
• Will continue ops cost data input when available.
• Will continue to work with BK importing data and executing action items.
• Will continue the development of the Advanced LIGO Project Web Site.
• Will continue the development of the Advanced LIGO Project Controls Guide Book.

WBS 1.4.1.2   Project Controls (LIGO Construction)

The end-of-August Quarterly Progress Report will be due at the end of September, and I have requested contributions by September 21.  This could be the last Quarterly Progress Report required under this Cooperative Agreement, although we will still have to provide some kind of Annual or Final Report.  Under the new Cooperative Agreement, we think that only an Annual Report will be required.

The following Change Requests have been submitted.
 

We scheduled a meeting of the LIGO Change Control Board for Tuesday, September 11, 2001, at 9:00 am PDT. An agenda was distributed electronically (LIGO-M010244-00-P).  This meeting was postponed in light of national events and will be rescheduled.

Press for the latest Contingency Needs Projection.

From: Kris Duncan <kris@ligo.caltech.edu>

• Continued with the August 2001 quarterly NSF report.  Updating earned value and reconciling actual costs and commitments..

• No report this week (vacation).
• Florence Kaufman and I have decided to put all the reports into one place (for your convenience)...so they can be found at:

http://docuserv.ligo.caltech.edu/~fireport

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

• The pre-bid conference and job walk for the Hanford OSB East Building was held on Wednesday, September 12.  Representatives of eleven contractors attended.  Due to the shut down of the airline system, Ed Jasnow and Mike Marquez of NTD Architects participated telephonically.  Mike was able to do his slide presentation regarding certain aspects of the building that should make it easier to construct.  Bid opening is scheduled for Wednesday, September 26.
• In order to possibly expedite NSF review of the contract for the Hanford OSB East Building, five copies of the Invitation for Bid were sent to the NSF for their review.  Since the IFB in a formally advertised procurement is identical to the final contract, they would be reviewing the same documents.
• The roof on the Livingston Staging Building is nearly complete.  This will allow them to close off the old building and should accelerate the remaining construction.

Quality/Safety (Tyler)

No report this week.
 

LIGO Hanford Observatory (LHO) Operations (Raab)

General Items:
--------------
(F. Raab)
 

We have cooled down the LVEA and work has begun to bring up the interferometers.
 
 

IOO/ISC Work (C.Gray)
 

Have completed assembling and aligning optic components on ISCT3; it now
needs its enclosure and to be positioned near HAM3.  Installed additional
acoustic panels on enclosures for the 2k & 4k.
 

Sent an SOS tower and hardware to MIT for balancing of LASTI optic-work.
 
 

LIGO Livingston Observatory (LLO) Operations (Coles)

Detector: Optics and Installation: Installation of the door hardware for the Laser Safety Interlock system continues, as well as additional exterior security cameras at both ends. Ordered additional IR viewers, cards and lab hardware. Completed calibration of WFS-1. (Jonathan Kern)

LDAS - Yesterday I successfully got BigBrother to run under the configuration that was decided upon for LDAS. I now have to create a configuration file for each of the additional sites, which should not take very long since they will be very similar. The next step is to integrate Tripwire and the temperature monitoring scripts.
GC - Tom has still been working with LSU to get them to install the second T1. It seems that we are not their top priority at this point. They said that they have been having ongoing problems with their main router.
CDS - Nothing to report.
(Shannon Roddy)

CDS: We have completed an inventory of supplies in the lab.  In general we are in pretty good shape. An inventory of all test equipment is ongoing and should be complete early next week. Disconnects have been installed on all the clean rooms. This allows for turning on the lights while leaving the fans off. We have installed new receptacles, video jacks, and ethernet connections along the back wall - across from the CDS racks. Installation of video cables, communication cables, and power for the new cameras, as part of the laser safety installation, is ongoing and should be complete in two weeks. (Rus Wooley)

Detector/Technical Support (Whitcomb, Coyne)

40 Meter Interferometer (Weinstein)

• PSL (Abbott, Ugolini, Vass, Smith):
• Dennis is re-measuring many properties of the PSL to get "final" measures of throughput, noise, etc, for a PSL commissioning document.
• Dennis turned off all beam attenuators in the main beam path, and saw 4.1 watts transmitted through the PMC. The alignment, mode-matching, servo gain, etc, all need tweaking to bring this up.
• Dennis is zeroing various offsets in the EPICS database, getting rid of obsolete items and medm displays, and fixing the PSL gui "animation".
• Optical Layout (Smith): The layout of the external tables was changed so that every output beam exiting from the vacuum chamber, and the optical lever beams, can be aligned to the fixed height of the ISC tables while allowing for a range of heights exiting the vacuum chamber. An attenuator was added inside the vacuum for the ETM transmission beam to reduce scattering of the output beam. Output optical ports were moved to reflect the as-built layout.
• Facilities (Vass, Jones, Smith, AJW):
• CES is still constructing custom support legs for the last 3 optical tables.
• Larry awaits samples of braided in-vacuum wire for testing, and is investigating the max voltage specs for the various wires that he's considering.
• Larry is finishing drawings for cable clamps, and submitting them to CES for manufacturing a prototype and then a production run. In fact, some prototype clamps have already been made and are in our lab.
• Steve is assembling our small mode cleaner seismic stack on a table in air, and Dennis is preparing to measure transfer functions of this stack without and with clamped cables.
• Larry will begin work on lightweight enclosures for all optical tables (less elaborate than the PSL enclosure), beam tubes for all beams going from vacuum to tables, and mounts for cameras looking at optics.
• Steve has prepared a PO for new optical-quality viewports, and for new AR coating on the new viewports as well as our old lower-quality viewports (Cascade Optics has by far the best prices).
• We will explore modified viewport flanges and/or spool pieces to place the viewports at a 5degree angle (vertical) with respect to normal, as is done at the LIGO sites, to minimize sending reflected light back into the IFO.
• CDS (Heefner): Jay plans to order lots of hardware for Global Diagnostics (GDS), Length Sensing (LSC) and Alignment Sensing (ASC), using the 40m lab as a development lab for these systems.
• Suspension controllers (Ben Abbott, Heefner): Ben is in the midst of drawing up detailed ProTel schematics of the 10 digital suspension controllers. He will assemble a full parts list, and orders will be placed in a month (after careful review).
• Suspensions (Romie): Janeen has finished a draft of drawings for 40m test mass (5" diameter, 2" thick) suspensions and fixtures. Dennis Coyne is reviewing them. They will use long osems, and have PAM screw brackets, but we won't use the PAM screws unless we really need them.
• Optics (Billingsley): Gari has completed substrate (polishing) specs and drawings for all core optics; see http://www.ligo.caltech.edu/~gari/40M/index.html; they've been reviewed and approved by Dennis Coyne and they have gone out to Wave Precision and CSIRO for quotes. She is also ordering many spare small optics blanks.
• Vacuum (Vass, Ugolini): The last vacuum valve, on the new output optic chamber (OOC) annulus, is installed and integrated into the vacuum control system (control and readback). We vented briefly to replace some viewports with blank flanges (so that the viewports can be re-AR-coated for 1064), and to add a cold-cathode gauge onto the new 12m mode cleaner beamtube.
• PEM (Ugolini, Abbott): The weather station is now being read out, displayed in EPICS, and written to frames. Temp and humidity do not correlate especially well with the same quantities as measured by the MetOne particle counter. The 1-axis seismometer is now being read into DAQS and written to frames. The accelerometers and the seismometer easily saw the 4.2 Hollywood quake last weekend, but not the 2.8 aftershock.
• Computing (Bogue, Ugolini, Bork): We continue to work on implementing a shared disk accessible to all computers (Suns, PCs) in our "martian" network. Lisa is getting Samba up. Rolf is populating the disk with all the needed VxWorks, EPICS, DAQS, etc code. Lisa is teaching all the computers to see a printer on that network.

Thermal Noise Interferometer (Libbrecht)

no report

LASTI (Zucker)

no report

Data Analysis and Computing (Lazzarini)

Simulation and Modeling (Bhawal)
 

Mode mismatch
--------------
Hiro's calculation: The modal field in a FP cavity was calculated to validate
the e2e code. One case was that the curvature of the mirror does not match the
field wave front curvature, and the other is the mirror tilt. Due to the coupling
to various modes, the TEM00 amplitude becomes like:
1 / ( 1 - R*exp(i 2 phi) ( 1 - del ) )
where phi is the phase gain per trip and del is the correction due to mode mixing.
For these two cases, it is shown that del to the second order of the distortion:
del = I A + ( 1 - R ) B
where A and B are values of the second order of distortion. By the locking
mechanism, imaginary part of del (I A) can be canceled out. This way, the
TEM00 power on resonance becomes:
1 / ( 1 - R ( 1 + (1-R)B ) = 1 / ( (1-R) ( 1 + B ) )
i.e., the effect of the disturbance is independent of the finess of the cavity.
 

Biplab is working on similar issues related to beam-shifting and mirror-tilts
and making consistency checks using both analytical calculations and e2e runs.
A '+/-' sign bug in the part of mirror tilt originating from its lateral shift was
found and eliminated.
 

Mechanical simulation
---------------------
(Virginio) working to fit better the psd and the tf I got from my measurements
of the suspension system at MIT.
 

Alfi
----
(Bruce)
- Finishing the initial implementation of all Alfi bookkeeping class methods.
 

(Melody)
- Continuing on implementating of graphics portion of alfi5. Worked on
  the window manager and drawing of the primitive nodes and ports
LIGO Data Analysis System
 

Software Systems (Blackburn)
 

Most of this week was focused on supporting the Mock Data Challenge for
LDAS, the burst and the stochastic upper limits groups. All search codes
(power, cluster, slope, ifo-ifo, ifo-bar) were successfully run within
the LDAS system by the weekend. LDAS performed particularly well with only
a handful of minor issues coming up. It was never necessary to change any
thing other than interpreted TCL script code to support or fix functionality
needed at the MDC. Other issues that came up that did not require immediate
attention have already begun to be implemented in the post-MDC LDAS system
running at CIT's development site.
 

One issue that came up at the MDC was the handling of search codes running
on the beowulf which had terminal failures such as a segmentation violation
on search nodes. The current wrapperAPI master design waits indefinitely for
a search node to respond. This is being change to have a ~5 minute limit at
which time the search will be terminated to avoid the lose of available
nodes
in the queue which was witnessed during the MDC.
 

The biggest changes to LDAS during the MDC were the determination of a
need to have a "search" type identification column in the burst tables
of the database and a fix to allow more than 5000 events to be inserted
into the database by a single search code job. Both were easy fixes which
did not require rebuilding/compiling of LDAS.
 

A concentrated effort went into configuring a single computer to run all
of LDAS (all APIs, the DB2 database and the parallel search codes). This
effort has resulted in marginal success with only minor issues still in
the way of declaring victory and providing a complete guide for LSC
members to configure and run LDAS on their personal computers.
 

A modified guild that can operate through a "mapping" router (one
that translates IP addresses) or a firewall, using a proxy service
was set up and is running at Caltech.
 

Looked into the Thread extension provided with Tcl 8.3 and 8.4 as an
alternative to running threads in our own C++ procedures. The Thread
extensions allows a Tcl interpreter to be started in its own thread
which can be used to perform a script, giving the result back to the
parent. However, full functionality is only provided in Tcl 8.4 which we
have not been able to get to work with LDAS yet.
 

Hardware Systems (Anderson)
 

LDAS Administration
-------------------
Caltech
-------
(Dan Kozak)
 

Lots of HPSS handholding--constant tape repacking, bad tapes needing
recovery.  Added tapes to storage classes to support the ingestion of
E5 data.
 

Testing of the "big rig" QFS system showed aggregate read bandwidth of
120-130Mb/sec (133 Mb/sec with 7 processes being the peak).  Questions
are in to LSC/Sun about what configuration would give us more.
 
 
 

(Al Wilson)
 

Finished changing the remaining LDAS passwords at Caltech.
Debugging a few stability problems with m71.
Re-arrange LDAS machine room to support the new Griphyn related PC.
 
 
 

(Stuart Anderson)
 

After UPS lost the initial shipment of E5 data from LLO a second
copy was made from the LDAS disk cache, sent via FedEX, and
successfully archived into HPSS at Caltech. Since government property
is not eligible for insurance the estimated reimbursement from UPS
is $100 for over a $1000 worth of equipment.
 

The web based interface to the LDAS software mirroring scripts was
enhanced to provide automated refresh capabilities.
 
 
 

MIT
---
(Keith Bayer)
 

wrote up BTU counts for all systems in ldas lab room
reset passwords on E450/T3
troubleshot/replaced failed T3 drive
monitored temps while a/c work done on roof unit
mdc support
 
 
 

Livingston
----------
(Shannon Roddy)
 

LDAS - Yesterday I successfully got BigBrother to run under the
configuration that was decided upon for LDAS.  I now have to create a
configuration file for each of the additional     sites, which should
not take very long since they will be very similar.  The next step is to
integrate Tripwire and the temperature monitoring scripts.
 
 
 

Hanford
-------
(Greg Mendell)
 

1) Continued work on the known pulsar search code DS0.  The code currently
takes the input data given to it by the stand alone wrapper from
an ilwd data file (later to be supplied by an LDAS pipeline command)
and extracts out the gravity wave channel time series.  From this data
it computes SFTs. Sky position and spin down parameters from the command
line are used to compute a demodulated DFT using LALComputeSky and LALDemod.
The maximum and mean power of the result are recorded, for the database.
The code compiles and runs without errors, but does not yet produce
reasonable numbers.  Debugging is underway.
 

2) Finished connecting fb3 (the new framebuilder) to the Sun T3 disk farm.
Ran some simple test of the connection which showed a stable 21-24 MB/s
write capability between fb3 and the T3s.  Alex started the framebuilder
on fb3 for further testing.
 

3) Installed Solaris 8 on sunbox1 and ran test of the cfdef
configuration script.
 

4) Started a backup script as a cron job on the LHO LDAS network.  Root
file systems (and soon the db2 file system) have a full backup every week,
and are incrementally backed-up every day.  Tested Linux dump and restore
command and Solaris ufsdump and ufsrestore commands.  These passed for
backing up and restoring individual files.
 

Data Analysis Activities
 

Charlton:
 

In the week since last Thursday until Monday afternoon I was supporting
the MDC:
 

* helping DSO writers with coding issues:
    - interfaces between wrapperAPI and DSO and DSO and LDAS database
    - Tcl scripting for LDAS pipelines
    - anlysing problems with DSOs and LDAS
 

* helping administrate LDAS at MIT
 

* running some MDC tests
 

During this week:
 

* spent some time with Massimo Tinto, Jeff Edlund discussing the next
stage of work for the FCT, and changes to the FCT paper being submitted to
the Amaldi proceedings
 

* looked into the Thread extension provided with Tcl 8.3 and 8.4 as an
alternative to running threads in our own C++ procedures. The Thread
extensions allows a Tcl interpreter to be started in its own thread
which can be used to perform a script, giving the result back to the
parent. However, full functionality is only provided in Tcl 8.4 which we
have not been able to get to work with LDAS yet.
 

General Computing (Wallace)
 

MIT:
(Keith)
-Wrote backup utility for new fileserver.
-Helped with CDS equipment
  rebuild aneirin (after failed fan on motherboard)
  fsckd disks on framebuilder
-Setup packages on pc for Marie Woods (new)
-Setup machines for new grad students
-Worked on the video conferencing.
 

Livingston:
(Tom)
-Still working with LSU to get them to install the second T1.
It seems that we are not their top priority at this point.
They said that they have been having ongoing  problems with their main
router.
 

Hanford:
(Christine)
-Working as an operator this week.
 

CIt:
(Mike)
-Worked on audio for Video Conferencing, connecting to POLYCOM to computer
to used TCP/IP to transmit audio input and out transmission.
-Updated webpage for Albert who mentioned there were multiple editorial
adjustments needed for clarity, plus he requested additional information to
be included.
-Setup a U10 workstation with Lisa.
-Setup a PC with video camera for VRVS conference on the west bridge third
floor conference room.
-Donna, installed and configured citrix client software to connect to Oracle
Discoverer server, and worked printer issues.
-Mike Smith, troubleshooting printer issues to get him connected to color
printer located on second floor, this turned out to be a bad ethernet cable.
-Rick Karwoski, correct some networking problems he was having with his
workstation in his office.
-Riccardo DeSalvo, went with him to Downs building to troubleshoot some PC
problems that he is having when he runs LabView software.
-Started working on setting up Ghost Network server.
 

(Wendy)
- password protected BIOS on PCs with Mick
- updated virus definitions on a few PCs and then manually scanned them
- ran virus removal tools on infected computer
- updated inventory map--there were quite a few changes while I was gone
 

(Lisa)
- I've been teaching Mick and Mike how to install sol8 and configure a
workstation for GC.  We've rebuilt 2 workstations so far.
- Did a full security audit on the inetd.conf files of every (at least I hope
every) unix workstation at CIT. Things look pretty good right now.
- Spent 8 hours working on getting Cadence to run on Windows 2000 using the unix
license server.  The windows licensing and installation is nowhere near as
robust as on unix.
- Finished configuring the bdl gateway and took that up to the bdl.
- Did a full tape backup of becrux in preparation for a rebuild.
- Generated a bunch of nis+ rootkeys for LDAS.
 
 
 

(Barbara)
- Continued efforts on roster web page and search tool.  Fixed problems
with certain combinations of data and missing data.
- Posted videoconferencing pages, new fellowships, meetings, updated FAQs
for GC, employment, ...
- Working with DMC on the Kamionkowski tape.
- Fixed problem with web services on antares.  Compacted DCC databases.
- Did a lot of housekeeping on the LIGO web site.
 

(Mick)
-Continued work on formatting inventory data and resolving inventory gaps.
-Installed Win2000 on m55 to test cadence.
-Password protected a number of PCs (BA23 and 3rd, 2nd floor)
-Addressed problem with hpcolor2 with Mike - recrimped end of network
cable.
-Loaded cor, including installation of Solaris 8, configuration, FLASH
PROM, and MU.
 

(Larry)
-Ordered a few more computers to upgrade some of the older PC's. Once the new
units arrive we should have a computer for every seat. Working on a number of
maintenance contract changes. Working out the details for the GIGE network
upgrade. That order should be started by the end of next week.
A number of the vendors have informed me that orders will be delayed because of
the closure of the airports.
-Started things going to get the single mode fiber installations done at the 40M
and Wilson House to Bridge. This is part of getting things moved to a GIGE
backbone.
-Worked with Mike on a number of the video conferencing issues. We still have
some logistics to work out but it is looking pretty good. Mike has a pretty good
web page that he is posting.
-Worked on a number of virus issues. We've had a few machines that were infected
because of infected e-mail being opened, infected files transferred and not up
to date virus definition files. However, most people are working on keeping
their machine secure.
-Worked on a number of e-mail issues, including setting up new alias groups. We
are still looking at different programs that will perform a virus scan on the
e-mail server.
 

LIGO II/Advanced R&D (Sanders)

From: Helena Armandula <ahelena@ligo.caltech.edu>
Subject: Weekly report
Cc: coyne@ligo.caltech.edu, willems@ligo.caltech.edu
 

"Q" measurements / coating
 

These parts are reworks from Mindrum. Wave Precision had some trouble with them also, maybe there was a problem with that particular batch of glass.
 

According to Wave Precision hopefully the thick parts will be finished by Wednesday 12th and shipped. If not, they definitely will be finished and shipped by Friday.
About the thin parts - they are still working on them. They might not be within the flatness spec, but will be somewhere in the neighborhood.
 

Generated and delivered prints to Mackowski indicating bevel size and masking areas on the thin substrates.
 

Silicate bonding:
Monitoring substrate stress at different baking temperatures.

40m system
Rolf Bork
- DAQ: Tried to install framebroadcaster last Friday. The reflected
memory network board is seeing data and interrupts from the DAQ
controller, but the CPU is not getting the interrupts. Will continue
work on this when I get back to Caltech next week.
- CDS server: Began creating the same CDS directory structure as
exists at the sites and moving all CDS code into those areas. Once this
is done, we will load the appropriate scripts to get auto backup/restore
operational. Again, this will probably not complete until next week.
 

Adv LIGO Optical Modeling
Bill Kells
I have been working on the final issues of comparison
of the FFT code results with equivalent MELODY results.
We are trying to get the paper which has been in draft on
this for some time finished up this week. It seems that final
issues of Thermal lensing in both codes have been reconciled.
Also I have concentrating on finishing up the matching questions
for LIGO II. That is, with large thermal lensing, how much carrier
power is going to be actually coupled into the arms? This has proved
to be a rather subtle problem. The simple modal models are not
directly applicable without modification (they typicall assume
ideal matching between the RC and arm cavities, a very good approx.
for the LIGO I carrier).
 

Adv LIGO COC
Helena Armandula
Just received the CO2 cleaner for the 40m lab.
MIT should have the one ordered for them.
 

Adv LIGO SUS
Janeen Romie
Working on 40m TM suspension design.
Working on AdLIGO SUS BOE.
 

Mark Barton
I did various calculations in support of the Advanced LIGO
Suspensions.
 

Adv LIGO SEI
Rich Abbott
- Worked on the specifications to the voice coil actuator driver with a focus on the thermal issues that the coarse actuator presents in vacuum.
- Evaluated some LVDT based position sensors for use in the seismic feed forward scheme.
- Working on the packaging for the electronics associated with the capacitance position sensors. This consists mainly of procurement and specifying.
 

From: Riccardo DeSalvo <desalvo@ligo.caltech.edu>

Lia, Charlotte, Riccardo
Finalized Creep facility and FINALLY started first measurement round
with 8 maraging 250 blades at different stress levels.
The blades have high Q and are excited by the air re-circulation fan up
to amplitudes of several microns, we get substantial aliasing noise from
the DAQ time slots.
Over the week end we tried several DAQ strategies to minimize aliasing
noise: sampling at 250Hz and averaging online over 4s gives 2-3 micron
noise, averaging offline over 100 s gives 0.3 microns (obviously still
dominated by aliasing noise).  Better results obtained by fitting the
main harmonic component and keeping the constant term, but the method is
cumbersome.  May need to fit all 3 harmonics online.
For now running 4 second DAQ windows with simple online averaging, this
will be sufficient for now.
Started a first run with 5 temperature palliers each 3 weeks long.
After that we will try other samples, possibly of different materials.
 

On Sunday afternoon we sustained an interesting, small (4.2 Richter)
earthquake (epicentre in Hollywood).
The synchrotron crane bridge made an interesting noise when it landed
back on its rails.
The SAS chain close by was observed NOT to be moving by any visible
amount immediately after the quake.
 

Chenyang
Setting up electrostatic actuator.
 

Akiteru, et al. @ Hongo
Assembling a small Michelson with one mirror on the SAS tower.
 

Yukioshi, Tatsuo
Measuring the double pendulum control transfer function.
Akiteru
Working on feedforward on IP.
Some residual problems with accelerometer diagonalization traced to the
IP excitation method.
 

Alessandro @ Pisa
Organizing for more flex joint machining with UltraSounds.

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