Weekly Report for Week Ending February 1, 2001

The LIGO Executive Committee Agenda for Monday  February 5, 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:

http://www.ligo.caltech.edu/LIGO_web/0101news/0101main.html
 

Weekly Report Highlights

LLO Fabry-Perot cavity locking studies along the X-arm

A 'first look'  displacement sensitivity spectrum was taken for the LHO 2k power recycled interferometer with recycling gain of 11

LSC Issues (Weiss)

No report this week.

LIGO I Construction/LIGO Laboratory Administration (Lindquist)

NSF Review

A NSF Review Committee (Detector Research and Development Subpanel) conducted a review of the Advanced R&D program proposed for FY 2002-2006.  This review was conducted at Caltech January 29,2000 through February 1, 2000.

The review panel provided a briefing on February 1, 2000.

The review panel indicated that the proposal for research and development on an advanced LIGO detector contains a set of significant technical challenges that, if met, will provide a design for an advanced gravitational-wave detector and deemed the proposed balance between operation of initial LIGO and R&D on advanced LIGO, as described during the review, appropriate.

[GHS note:   The review was a great success! While we have been advancing in detector commissioning and in preparations for data analysis and modeling, the review recognized the third leg in the stool; a very powerful R&D program for advanced LIGO that is in place as a strong collaborative effort with the LSC and that has grown to a full 1/3 of all of the Laboratory's efforts. Everyone is to be thanked and congratulated for their efforts in this program and for the thorough preparation and expert responses to the review panel's questions.]
 

WBS 1.2 LIGO Operations--Administration

LIGO Weekly Site Telecon (Lindquist)

The next site telecon is scheduled for Thursday, February 8, 2001.  The list of current actions revised to reflect open actions assigned through January 25, 2001 may be found at ACTION LIST.

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

• No report (at Livingston).

>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

• During the past month a total of 91 new documents were made available on-line.  An additional 238 documents were processed and added to the database.  Packages received or sent out totalled 274, and there were 158 faxes received and another 204 sent out.
• Met with Paul Russell and Rick Karwoski to review documentation procedures for a drawing release.  The use of an ECO and its relationship with a DCN were discussed.  They will also be adding a revision history block to their drawing format.
• Made several layout designs for a LIGO award/service plaque.  A final rendition was chosen by Barry and will be taken to a vendor for framing.
• Met with Phil and Barbara to decide the benefits of either of them attending the AIIM conference with me in April.  Both will review the agenda of the sessions and seminars to decide on their attendance and plan of action for making the most of the opportunity.
• Began the process of outlining a system requirements document for the DCC.  A mission statement for the DCC and initial questions/considerations will be garnered and passed along for additions by Phil and Barbara.  Once amended, the document will be distributed to a few for additional comments or changes.  The goal is to have a completed version by end of March in preparation for my attendance at the AIIM conference at the end of April.
• Processed and distributed 1 DCN.

• continued auditing Hanford Construction drawings.
• electronic document submittals were fairly light this reporting period.

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 MIT, Heritiage Landscape, Sydney Meshkov, and John Desmond.
• Working with Cindy and Dorothy to close out PO's and remove encumbrances on various poetas.
• BOC Gases for the LLO will not be extended beyond May 31, 2001.  It will go out for RFP. (See below.)
• Have obtained one quote for the generator for LLO.  We will be receiving a maintenace quote soon along with the quote from the competing supplier.

• No Report.

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

• TAMA SAS: An order for two Mirror Isolation Systems, for SAS technology demonstration/verification on TAMA 3 Meter Interferometer, was definitized. A grant, to receive NAOJ's cost share for SAS R&D, is being set up.
• LaTech: CO No.3, extending the performance period through Nov. 30, 01, was released to CIT Purchasing.
• MIT: CO No. 11, extending the period of performance through Nov. 30 , 01 and re-allocating residual FY'00 funds to LIGO FY'01 accounts, was released to CIT Purchasing.

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

• The contract with Heritage Landscaping is being renewed for one year to perform landscape maintenance service at Hanford.
• The option with BOC Gases to provide liquid nitrogen for Livingston is not being exercised due to poor service from the company.  An RFP is being prepared to find a new vendor for this item.

Support (Wood)

Advanced LIGO (Frey, Petrac)

Progress Period from 01.26 to 02.01

Accomplishments:

• LIGO Project Controls meeting not held this week due to NSF review.
• Attended NSF opening and closing meetings.
• Prepared budget data report as requested by Phil Lindquist.
• Proposal plan development for Advanced LIGO MRE continues.
• Issued data requests for progress data as of 02.02.01 that are due Friday.
• Progress as of 01.26.01 was processed and posted.
• Review of cost and schedule data is Continuing.
• Continue to integrate the AOS schedule into Primavera and the Cost Book Tool.
• Started to integrate the COC schedule into Primavera and the Cost Book Tool.
• Did not received any data from Dave Reitze or Peter King.
• Initiated the development of the TNI work plan and schedule per Gary Sanders.
• Eric Black has acquired MS Project and will install after Aspen.
• Project Plan for the 40-Meter Lab Upgrade continues.
• Issued data requests for progress data as of 02.02.01 that are due Friday.
• Progress as of 01.26.01 was processed and posted.
• Waiting for comments from Alan Weinstein regarding the changes he said he wants to make to the WBS.
• Planning process for the LASTI project at MIT is in progress.
• Issued data requests for progress data as of 02.02.01 that are due Friday.
• Progress as of 01.26.01 was processed and posted.
• Changes are pending from David per his discussions with GEO regarding the acceleration of prototype noise testing.
• Continue to test the Cost Book Tool.
• Continue mapping and formatting of OPs cost data for input.
• Preparing data representing the most recent changes.
• 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 meeting will be Monday afternoon February 12th from 1 to 2pm regarding the planning and control of the Advanced LIGO MRE proposal development.
• Will prepare budget presentation data as needed for NSF review at the end of February.
• Advanced LIGO Proposal
• All effort on hold pending internal review.
• Will Continue to develop the TNI Schedule.
• Meeting scheduled with Eric Black on February 12th at 9am.
• Will Continue to update the LASTI Schedule with progress.
• All effort on hold pending internal review.
• Will continue updating the 40 meter schedule and incorporate any changes.
• All effort on hold pending internal review.
• Continue to test the Cost Book Tool.
• Cost Book Tool development continues.
• All effort on hold pending internal review.
• 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)

Nothing to Report.

The following Change Requests have been submitted:
 

Press for the latest Contingency Needs Projection.

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

• Continued with the December 2000 CSSR and related materials.
• Continued with construction contract/work package close out.
• Continued work on transferring the COBRA files into Excel format.

• I received the MIT invoice and TWONK (MIT cost allocation) report for the month of December, and I compiled the data for payment using the new account numbers.  I am waiting for the change order to add the money to these accounts to be completed so I can submit the invoice for payment.
• I continue to review the open encumbrances on the Construction and Advanced R&D accounts to see if the requested removals have been made. I will continue to review these accounts weekly until all encumbrances have been removed (Remember, I can only get these errors corrected if the Task Managers point them out to me).

 

 
 
 

The financial reports on the web provide supporting detail.
http://docuserv.ligo.caltech.edu/~fireport
http://docuserv.ligo.caltech.edu/~finance

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

• The review committee for the A/E contract for the Hanford Support Building has completed its evaluation of the three competing companies, and is recommending a selection.  The committee's report will be presented to Barry Barish and Gary Sanders next week.  Upon their approval, the recommendation will be forwarded to the NSF for their approval.
• The package containing information on the procurement of Phase I of LDAS has been sent to the NSF for their approval.  A presentation to them on this package has been tentatively set for the week of February 12.
• The first concrete has been poured this week for the Livingston Staging Building.   The contractor continues to be slightly ahead of schedule.

• No report this week; see Operations Section above.

LIGO Hanford Observatory (LHO) Operations (Raab)

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

After finishing up ETMx, installation has moved to the corner station. The
Controls and Computing reports (prepared last week but not submitted due to
my error) are also reprinted.

Controls
--------
(D. Barker)

Built the EPICS controls for the LSC high gain switching system for QPD
Sum signals.

Begin the installation of the latest version of EPICS, 3.13.3.

Worked VME problem with ASC front end FM optlev pentek card.

Put together test stands for baja and pentium code dev.

Computing
---------
(C. Patton)

A read only copy of the LHO elogs is now available at

http://apex.ligo-wa.caltech.edu/ilog/.

Everyone uses the username
"reader" and password "readonly".  Thanks to Bruce Sears for setting
this up.  The elog files are being copied from the CDS network to apex
daily.
 

Last week I attended an Advanced PC Maintenance course.  I learned a few
good things about BIOS settings, using the Windows registry, optimizing
memory and CPU, and security features in Windows 98.

Input Optics (4 K installation)
--------------------------------
(Betsy Weaver, Corey Gray and David Ottaway)

The new OSEMs have been fitted to the MC2 and SM1. It was noticed that
these OSEMs change the balance angle by up to 3 mRad. The direction
change is always front face (HR Surface) tilts downwards. This effect
has been traced to the face magnets attracting towards the ferromagnetic
components in the new OSEMS. In consultation with Stan W and Peter F it
has been decided to proceed with the installation as is and correct for
this problem using higher range current drivers.
 

Core Optics (4 K installation)
------------------------------
(D. Cook)

The LHO 4K installation has moved to the corner station. The MMT3 is on
the optics table, but the final position has not been finished as we need
to reverify the location dimensions. The HAM 1,2,3 and BSC2&34 tables have
had their elevations set and leveled. SUS temporary controllers and the new
satellite boxes installed and tested. The optical levers are getting close
to their final setups. The RM is being fitted with its new OSEMS and will
be next in line for installation the first part of next week. We have a ton
of COS hardware stage and ready to follow on after the IAS finishes up.
Even with a couple a minor setbacks we are holding to our original schedule
thanks to a big team
effort.   (SKI,Gerardo,Hugh,Corey,Dave,Betsy,Rick,Richard, Josh, The PSL group
and others, Did I mention MOM in there?)

LIGO Livingston Observatory (LLO) Operations (Coles)

This week we began Fabry-Perot cavity locking studies along the X-arm. We have been able to achieve locked sections that are as long as several minutes and in one case nearly ten minutes long. We have been able to make spectral measurements and are now busy discovering problems with the installed system and are fixing them incrementally. For example, there is an obvious pitch motion of ITM-x that we are now trying to understand. The residual water content in the vacuum in the corner station is very low, so wetting the beam tube has not been a major concern. Only about 1 torr-liter of water load has been added to the beam tube during each of the roughly 12 hour periods the X-arm gate valve has been open for locking studies. A general concern is that the seismic environment here is higher at low frequencies (around 1-3 Hz) than that encountered at Hanford, and construction of the staging building modification is now underway, generating additional noise - so our attempts at locking have been at night.

General Computing: Exabyte tape library has been removed from decatur and will be installed on aubry (future email server). AIT2 tape library has been installed on decatur. It has been tested and is up and functional. We have been investigating different models of Cisco PIX Firewalls.
LDAS:The AIT2 tape library has been installed and configured on Beowulf. Gregg Mendell is running some scripts on it to run it through its paces.
CDS :We have installed ghostscript on one of the CDS machines and will install it on the server shortly. (Shannon Roddy)

Other: We are in the process of working on several loads for the 40M in Pasadena. However, we are currently having a problem with either a leak or vacuum instrumentation, or with both, and are trying to resolve that before heating the oven. (Tom Evans)

Rough grading for the annex to the staging building began this week. Excavation of the footings for the interior supports is nearly complete. Augering for the vertical steel columns will be done next week.

Detector/Technical Support (Whitcomb, Coyne)

Seealso the daily electronic logs for the installation and commissioningactivities:
HanfordDetector Log
LivingstonDetector Log

1.1 LHO INSTALLATION & COMMISSIONING

2km Commissioning

Mode Cleaner Servo

4km Interferometer Installation

PSL

1.2LLO INSTALLATION & COMMISSIONING

Commissioning

The digital system at Livingston, both the LSC and DAQ, has been improved so that typically only one rebooting is required per day. The reduced data archiving system was installed so that selected channels can be archived with full bandwidth for permanent storage.

GRB

PEM

GDS

2.0 OtherEngineering and Scientific Activities

2.1 R&D/Design/Analysis/Fab

Advanced R&D Review

Optics Modelling

LSC

PSL

• The redesigned goniometer mounting scheme mentioned last week was modified by Lee.  The end result I think is much nicer in terms of mechanical stability.  The prototype is currently being installed in the laser but seems to have all the features we desire for adjustments.  Later this week I hope to finalize the AutoCAD drawings for it. (holds the EOM, the goniometer and the New Focus mount all together in place).
• Working on the MOPA S/N 110 laser alignment.
• I have increased the current on the NPRO from 2.064 amps to 2.107 amps. I encounter a situation on the process, the potentiometer is not responding  as a turn it up.  So, the most  is 2.107 amps.  I wanted to increase the NPRO power from 453 mw to 500 mw but the most i got is 485mw.  I will contact Lightwave.
• I have put together a Ref. cavity contacting mount, consisting of breadboard, XYZ-Translation stages, rail and carriages.

• A 2nd set of PMC servo boards is currently in test
• Schematic updates and refinements for the PSL are on-going.
• Preparations for Bridge Lab-constructed cross connects for 40m and LASTI have begun
• Progress is being made on the intensity servo.

New OSEM Heads

DAQ

Digital Suspensions & Controls

Received new vxWorks board support package (Tornado 2) software for our latest models of VME Pentium processors. This was required as the latest chipsets are Intel GX series processors, not supported under Tornado I.  Seems like Intel chip sets change rapidly, as CPUs we had purchased just 3 months prior had rev
"BX" chip sets.  Anyway, spent about a day making our specific kernel changes and testing the new CPU boards.

Jay Heefner

• Rack and wiring diagrams for all 4K suspension systems are complete. Cross connect lists, etc. will be sent to Richard by 2/2 for assembly.
• LOS Bias boards are complete and tested.
• SOS Coil driver boards and are being stuffed. This is the last board needed for the 4K installation.
• Capacitors for the LOS coil driver have been received. Chassis should be

assembled and tested by 2/9.
• The option of optical lever damping of each optic has been added to the 4K system. Lori has completed the design of a module that will interface the optical lever PDs to the spare penteks in the system. Boards should be available by the end of Feb.

Data Acquisition

2.2 IssuesConcerns

40 Meter Interferometer (Weinstein)

• AJW gave a talk to the NSF Advanced LIGO review panel, to explain the purpose of the 40m program and why Glasgow isn't doing it all (in my zeal, I probably insulted the Glasgow effort, for which I apologize!).
• From Mike Smith: The ACAD opto-mechanical layout of the 40 meter interferometer has been revised to incorporate the PSL and IO optics. The mode-matching optics for the input mode cleaner are being designed. Design requirements documents for the auxiliary optics subsystem (AOS) are in process.
• Larry Jones is assiduously following the progress of all the mode cleaner and output optic chamber hardware as it makes its way from manufacturer to Allied and or LLO for cleaning, baking, and testing. There have been a variety of delays and snafus, but we can expect all parts to be back at Caltech for installation in February.
• Larry is designing the last remaining element of the vacuum envelope, an 29.5" diameter, 18" long adjustable bellows to connect the existing side optic chamber with the new output optic chamber. He is also learning AutoCad (in his semi-retirement) and updating the building drawing portion of Mike Smith's layout.
• The 1m linear mode cleaner that served the 40m well in its last years was removed, and is stored away. The PSL table at the 40m was moved into the position that we currently believe is final, and an enclosure (like the ones at the sites) was built around it on Thursday. Peter King and Lee Cardenas were on hand to assist and approve it.
• It looks like the PSL for the 40m will be assembled at the same time as the PSL for LASTI, which has an impact on the 40m schedule. Visitng grad student Guillaume Michel will assist in the building and commissioning of the PSL.
• Garilynn is pursuing the polishing and coating (at MLD) of the three input mode cleaner suspended optics.
• Steve Vass removed the last of the 40m recycling experiment test masses and transferred it to Ron Drever. Ron now has all the test masses from the recombination and recycling experiments.
• Ben Abbott and Dennis Ugolini visited IAC Industries furniture showroom, and selected their LAN Station product line for use in the 40m control room. We will order the tables, chairs, shelving, etc soon.
• The Sun Ultra 60 which will be used for 40m DAQ arrived on Wednesday. It is still in boxes. It will be set up by Rolf with the reflective memory card, etc.
• Guillaume and Dennis Ugolini are making progress in understanding E2E and the 40m/DR E2E model.
• Dennis Ugolini is working on the final report for the E2 seismic study.

Thermal Noise Interferometer (Libbrecht)

no report

LASTI (Zucker)

no report

Data Analysis and Computing (Lazzarini)

Simulation and Modeling (Bhawal)

In wednesday's weekly meeting, We discussed about pros and cons of
developing a client-server framework to get ready to use CACR multi-CPU
computers to handle multiple long e2e jobs simultaneously.

* Client-server framework (Tavio D'Angelis)
-------------------------------------------
  The client-server framework for the end-to-end modeling application is
  being constructed as stand-alone client and server processes until the
  framework is robust enough to handle the modeling application as a
  co-process. The first essentials of the program for the request-reply
  structure of the client and server application are the duplication of
  files over the socket connection and the e-mail notification to the
  client user.  Both of these have been demonstrated via test cases.

  I am creating the framework for the client-server model  as follows: the
  client program will submit a dummy request to a simple application which
  is invoked by a server.  The server will run this application
  and via the coprocess mechanism will store the output of the app.
  The essential features are : generating a unique request number,
  creating a subdirectory to run the application in, copying the files,
  running the application, and storing the resulting output from the
  application. Once the application aborts due to errors or successful
  completion, its output is transmitted via e-mail to the requestor.

* Parallelization of code (Matt & Hiro)
--------------------------------
  Matt has completed the simulation testbed with a revised enqueuing and
  dequeuing class. He is starting to implement logics to utilize threads
  most efficiently.
  Hiro did some basic programming work for e2e.

* Mechanical simulation (Virginio)
----------------------------------
  Virginio has built the first version of the pendulum model for the
  advanced LIGO using Cella's MSE. He had a meeting with Peter F and
  Hiro to discuss the future plan. In a week, he will provide a version
  which Peter can start using with pendulum motion of wires suspending
  the test mass.

* Lock-acquisition Studies (Biplab)
-----------------------------------
  Continuing studies of lock-acquisition in presence of angular
  fluctuations of mirrors. It seems during the acquisition process, the
  power fluctuations at early states may not always hinder the system to
  get into next state and then get fully locked. As an example, a level of
  7e-8 rad-rms ang. fluctuation causes power fluctions of the order of 13%
  (i.e, rms/mean) in state 2 or state 3. In most of the cases (if state 2 or
  3 are long), such a situation is not good enough for the IFO to get fully
  locked but, if it so happens (due to probability-dependent state of the
  length-changes) that state 2 or 3 are short-lived and the system gets
  locked, the power fluctuation in the full-locked state is only 5%.
  From a number of runs, it seems, power fluctuations in fully locked
  state are mainly dependent on ang. fluctuations in end mirrors.
  Working on mathematical explanation of results.

* Alfi (Ed maros)
-----------------
  - Finished first pass of copy/paste, a feature being introduced in Alfi.
  - Upgraded wxWindows to 2.2.4.

LIGO Data Analysis System

Software Systems (Blackburn)

 

 

Kent was out this week. Work has been progressing on adding functionality to the client controlMonitor API to enable viewing API status and controling LDAS jobs from remote "thin clients" with Tcl/TK. The frameAPI is having additional functionality added to it in order to support end-to-end pipeline processing, from frame data on disk to events into the database. This is preparatory for the upcoming use of LDAS for the UL analyses. A bug in the API which formats data for internal use within LDAS (ilwd format) was being tracked this week.

[ Phil Ehrens ]

 *(PSE) Continued reimplementing frame.tcl functions to use
        dictionary and specialised accessors from frameAPI.so.

 *(PSE) System tested new ilwd and frame code on ldas-dev and
        on marfik daily to keep uncommitted changes to frame
        API in synch with other new LDAS code.

 *(PSE) Added secure method for user list in manager to be
       updated on-the-fly without affecting running jobs.

 *(PSE) Worked with Ed to develop test scripts for dc API
        development.

Hardware Systems (Anderson)

 

 

Finished LDAS Request For Quotes (RFQ) for ~30TB of disk storage,
a 6000 slot tape silo, and initial 16 node beowulf clusters for LHO and LLO.

Finished renovation work on 215 Synchrotron which currently holds the ldas-test
system and will eventually hold the main ldas-archive system. The raised floor
supports have been fixed and missing tiles have been replaced.

Continued planning for a probably move of LDAS to the staging building at LHO.

Received one Intel P4 and one AMD K7 for advanced LDAS configuration and
performance testing at Caltech with an immediate goal of selecting engineering
run beowulf clusters for LHO and LLO, approximately 16 nodes each.

Installation and initial testing of a 2 drive/30 slot AIT-2 robot at LLO
in preparation for the E3 run in March.

Initial contact with Cybernetics regarding a possibly broken AIT-2 drive
in the robot at LHO.

Finished upgrade of all LDAS Sun computers to Solaris version 8, including
all desktop machines for E2E and LDAS staff on the 6th floor of Millikan.

Solaris UFS logging enabled on all the LDAS Sun computers at LHO.

Lazzarini met with the CACR directorship in order to bring the newly-returned Paul Messina up to date on the LIGO/CACR MOU and current plans for deploying the archive at Caltech.

Data Analysis Activities

- Working with the PEM group in Virgo for collecting material in view of the
   11th February meeting.
 

General Computing (Wallace)

Livingston:
Tom and Shannon are looking at security options to handle the existing network
and the future OC3 network.
 

Hanford:
Christine setup a meeting to go over the OC3 fiber installation. From the
meeting Larry is going to check on a number of possible configurations for
the installation. Fred or a representative will work on getting a contact
to install the jumper for the fiber connection between the Observatory and
PNL.
 

CIT:
(Lisa)
- upgraded 2 more computers on 6th Millikan to Solaris 8.  Stuart swears this is
really the last of them.
- built a laptop and a desktop PC to support the NSF review.
- Helped out Liz with projectors and such for the NSF review.
- Rebuilt the OS of the server that has the new cybernetics tape robot on it.
- Worked with Larry on getting the cybernetics drivers and software installed.
- Did monthly backups.  I used the cybernetics robot for the data disks.  Root
partitions will continue to go to 8mm using ufsdump.
- The ISDN line for the new modem pool got installed but I need to call 3com
about the configuration.
- I identified a block of IP numbers on the 125 subnet to reserve for DHCP on
the new modem pool.
- Replaced Helena's pc with a better one.
- Worked on recovering files and running diagnostics on Bill Kells laptop.  This
was a joint project with Sam who did most of the basic rebuild.
- Created a list of the patches that should be run on all of the Win98 boxes.

(Suresh)
-Installed and doing some tests on Concurrent Version System (CVS) on my
workstation.
-Helped Helena replacing her old PC with Gateway 400 PC. Transferred some
files and installed additional applications.
-Did some tests on ATM switch to find the problem with ES2810 ATM uplink
connection in computer room.
-Diagnosed Mike Smith's new PC's floppy drive reading problem and replaced
with new one. Did some printer maintenance.

(Sam)
Wow, have I been busy
-Rebuilt two laptops, lots and lots of time involved.
-Worked on gina's computer
-Answered a bunch of pc questions
-Burned some CD's
-Working on fixing some stuff for Dave B.

(Barbara)
-Created a program that makes a "flat" version of the DCC database for David
Shoemaker.  The first use will be to make T, M, P, and G documents
available in an Excel spreadsheet.  Next I have to set up the process to
run it regularly and set up links to it on the internal bulletin board.
-Worked on the LDAS web page for contacts -- a perl script.  It has been
simultaneously an educational, frustrating, and rewarding experience trying
to read and use data in the mail aliases file.
-Updated LIGO home page with graphics from latest edition of newsletter.
Created and installed web page for PAC transparencies.  Installed January
newsletter.  Added links to LHO logs and Amaldi.
-Investigated a new US map for the LDAS web site.  Sized photos from the MDC.
-Fixed several incidents with the DCC batch job that compacts the database.
The process hangs with the step that renames the main document database.
This job has been working for almost a year now so this new wrinkle is a
mystery.
-Update public document search tool.
-Met with Phil and Linda about the AIIM meeting and discussed the procedure
for posting the March LSC transparencies with Linda.

(Larry)
-Worked a number of DCC issues. Presently, working with Linda to get things
ready for the LSC conference.
-Modified/updated DNS tables and host files to accommodate naming changes and
LDAS testing.
-Worked through a number of purchases. Hopefully, the projectors will arrive in
the next few weeks, Epson has them on back order. The UPS replacement still has
not arrived but APC assures me that it has shipped. A number of the PC's have
arrived. Will be ordering a couple more laptops.
The travel laptops and projectors worked out well for the NSF review.
-Resolving some issues with the anonymous ftp services running at this time.
The LDAS group has made changes to the LDAS server in order to increase
security. The GC server will still be open because of the number of
locations it needs to support. However, if we have too many problems we may need
to make it more secure which will change the way some people are exchanging
files.
-Resolved a number of PC issues. Most were just setups that needed to be
reworked. Bill Kells laptop and a few others have been taking up some time.
Mostly, working with the vendor to get things diagnosed.
-Worked a number of SDRC issues. Installed a new license but waiting for the
word on when it will actually expire before that issue is closed.
 

LIGO II/Advanced R&D (Sanders)

Peter King
3.1 Advanced LIGO PSL
        Benno Willke and I have worked through a revised schedule that
adopts the major elements of the WBS.  To initiate the transition to
EPICS
controls, we will be shipping them some items of VME hardware, RF
photodiodes, VCO and frequency servo for testing and implementation on
the
current GEO injection-locked laser.  Later this week I hope to revise
the
WBS Dictionary, the schedule and the costing.
 

3.2 40m Lab PSL
        I have completed the 2-dimensional layout of the 40m Lab PSL.
The
drawing was passed to Mike Smith to allow him to complete the optical
layout of the 40m Lab.
 

The PSL table enclosure is scheduled to arrive tomorrow (Thursday) after
being held in storage for some number of months.
 

3.3 LASTI PSL
        I had a quick meeting with David Shoemaker about what exactly he
was expecting by ways of a PSL, as I had wondered if I'd have to do a
complete installation or supply a box of parts.  Consequently many boxes
will be arriving in the near future.
 

Helena Armandula
Silicate bonding
Fabricated a new test apparatus to be able to test tension on bonded
substrates.
Researching epoxies to be able to affix the silicate bonded substrate to
the testing holders without introducing stress to the glass.
 

LIGO-II SEI
Szabi Marka
I was working on the design and modeling of the new version of the UHV
compatible STS-2 lock mechanism.<x-html>
 

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