Graph
provided by Cindy A.
The LIGO Executive Committee
Agenda for Monday March 6, 2000 will be:
(Meeting time: 10:30 am Pacific Time)
Open meeting 10:30 - 11:30
Special Items:
No report this week.
LIGO II Proposal--It was noted that we will have a meeting Monday, March 6, 2000 to establish a proposal preparation schedule for LIGO II. A proposal for continuing operations for FY 2002 through FY 2007 will have to be done in parallel with the LIGO II proposal. The proposal for continuing operations should carefully address site needs. Ed Jasnow suggested that Mark Coles, Gerry Stapfer, David Shoemaker, Otto Matherny, and Fred Raab be heavily involved in this proposal. Mark Coles expressed an interest in being included in the meeting Monday afternoon.
Property Management--We have a long-open action regarding the proper identification of Caltech/Government Property which derives from an action assigned by Caltech Internal Audit almost a year ago. The current status of the action is "waiting for Finance" to provide guidance and information. Phil was assigned an action to prepare a memo for the new Controller, Al Horvath, summarizing the history and requesting some priority.
Funding--NSF previously instructed us to submit the Annual Report via FastLane and the Annual Work Plan via paper since the NSF system apparently does not provide a "place" for both. We have submitted a Work Plan via paper requesting funds for FY 2000. We are in the process of preparing the Annual Report in the FastLane format. However, the NSF is apparently having second thoughts. I think this means that the Annual Report will be via paper copy and the Annual Work Plan through FastLane. I have asked Elizabeth Wood to start assembling a FastLane version of the Work Plan, and I am providing her with the necessary electronic files. This may take a week or so. Meanwhile, I would guess that we are going to have payments problems. There are adequate funds in LIGO Contingency (this year!--as mentioned previously, this may not be true next year), but Finance will be required to do much churning to put the funds in the work breakdown structure elements (accounts) incurring the costs! This is necessary for ORACLE to be able to request funds from NSF.
From: Ed Chargois <chargois_e@ligo.caltech.edu>
Assisted the System Administrator (L.Wallace) with the packing and shipping of a Computer and two Monitors to the LIGO Livingston Observatory (T.Evans). Account Number LIGO.5N500 2.13 NSFLIGO.5N5000.
Assisted the Seimic Isolation R&D Group (R. DeSalvo) with the preparation of a Physical Plant Project Request Form for shipping of Hardware to the LIGO Hanford Observatory. Account Number LIGO.00002 3 NSFLIGO.5044800.
[We encountered the Y2k Leap Year Bug in the Document Control Center this week. People who attempted to use the DCC Web page to get a document number Tuesday morning discovered that the default date provided on the Web page (02/29/00) would elicit a message indicating that the date couldn't get through the error checking routines. Barbara K. provided a work around and a fix by lunch time. We think that it was just a minor inconvenience. --pel]
| Packages | Faxes | |
| In | 31 | 28 |
| Out | 11 | 66 |
Special Projects: Completed labeling Parson's as-built electronic drawings. Continued to fold and stamp the printouts of these drawings. Processed relatively high volume of electronic documents that were submitted.
From: Esther Cunningham <esther@ligo.caltech.edu>
Press here for ACCOUNTS PAYABLE HISTORY DATA.
From: Ruth Brambila
Good news! Learned how to "export data" from Oracle to an Excel spreadsheet to be able to print out the data on one spreadsheet versus multiple Oracle screen prints. This data was requested on NYMA. Kimmie Richardson provided the assistance on this.
We are still waiting to find out how to best obtain a list or report of "active encumbrances" on an open P.O. Oracle support staff is working on this with Acquisitions management.
Acquistions has obtained folders to better organize the subcontracts
internally and these were distributed a few days ago. A folder was
set up
for Lightwave Electronics which went to the Controller for signature.
Today, MIT C/O 6 and 7 were signed by the Controller. The set up
of the new folders is a little time-consuming, however, it pays later as
it is easier to see the status of the subcontract at any given point in
time. I am working on finishing up the folder for MMR to take over
for Acq's approval, and will also be creating a folder on Galli and Morelli
to take over for the controller's signature today. (The c/o's are
done in the system, so payments have been going out.) The folders
will be prepared as change orders are submitted.
I checked with Tina yesterday about releasing encumbrances on subcontracts and she said it is okay to do this as an internal modification. I'll be trying this out today. [We have been trying to relieve old encumbrances. If we strictly adhered to the rules, we would have to issue change orders to the subcontractors notifying them of a reduction in their contract value to reflect the elimination of the open encumbrances. Some of these subcontracts are closed. Some of the encumbrances relate to accounting processes that failed to relieve them when payments were made in the past. Therefore, it makes no sense to issue a change order to the subcontractor. I think that what Ruth is telling us is that they have decided on a process that allows us to make the necessary corrections without burdening the subcontractors (or the subcontract managers) with strange and unnecessary paperwork. --pel]
From: Florence Kaufman <fkaufman@ligo.caltech.edu>
Similarly, the FY 1999 accounts for Advanced R&D have been replaced. This includes 50480, 50481, 50482, 50483, 50484, 50485, 50486, and 50487.--pel]
For a listing of the FY 2000 POETA Accounts see
http://docuserv.ligo.caltech.edu/docuserv/home/accts_ops.pdf
http://docuserv.ligo.caltech.edu/docuserv/home/accts_adv.pdf
On April 18, the Hanford observatory will be visited by representatives
of the Washington State Department of Revenue to determine whether LIGO
is subject to paying their B & O tax.
Rita Torres
For I. Petrac formatted, from Oregon's email, the 6-month LSC report for University of Oregon; submitted electronically for DCC posting after review. Distributed letter Re: University of FL invoice error. Obtained an Oracle requisition number, then distributed signed PO with Crystal Systems. Did change order No. 2 to Dynamic Light, and change order No. 8 to MIT, obtained Oracle requisition numbers for both. Helped to close contracts with SORL, and Conejo Industries.
I'm near closure on a credit that I've been chasing for over two weeks. MWS Wire Industries does not issue credit on credit card purchases, instead they issue a check for the amount, and that check was mailed to the wrong mail stop on campus. The company finally agreed to stop payment on that check and issue another to Caltech at M/S 18-34. Hope to close this next week.
Dorothy Lloyd
Continue to process receiving, requisitions, and invoices on-line. For more detail see "Cost Schedule Control Systems" report by Esther Cunningham.
Monitoring contract and blanket order funding levels continues, and requests for supplements from task managers when needed.
Reviewed payments processed by Esther for the period Jan 17 through Feb 29. Payments were entered on contract summary sheets by myself, while Jim entered the payments made on standard purchase orders in the LIGO database.
Managed to start filing away POs processed (since the switch-over last July to Oracle) in PO Log books using the new POETAs.
Graph
provided by Cindy A.
Irene Baldon
Attended a meeting on the possibility of LIGO becoming the prototype for using P-Cards for travel. I will be attending 2 days of passport/travel demonstrations on the 13th and 14th. I will keep you informed as I soon as I know anything.
Worked on preparing the paper work for 15 new trips taken recently or upcoming (15 Payment Requests and 11 Advance Requests). In addition, there are approximately 15 new trips in preparation.
Completed 17 Expense Reports. There are 41 Expense Reports still to be done. I'm holding 1 completed Expense Report which requires a check from the Traveler before sending to Travel Audit to clear.
I'm seeing some improvement in the time lag for receiving checks from Disbursement Audit. Disbursement Audit has been moved to an address on South Hill thus making it very difficult to walk over to pickup a check that I'm particularly looking for. I now seem to be receiving TR numbers on somewhat of a regular basis.
Elizabeth K. Wood
Livingston is making offers and hiring people. Gary Traylor started March 1. Another offer will be going out soon with a possible third hire in the very near future.
The following change requests have
been submitted:
| CR-990028 | WBS 1.1.3 | Beam Tube Enclosure Closeout | F. Asiri |
| CR-000001 | WBS 1.1.4 | Fencing Road at Livingston (Info Only) | G. Stapfer |
| CR-000002 | WBS 1.4 | Project Office Close Out | K. Duncan |
Press for the latest Contingency Needs Projection.
From: Kris Duncan <kris@ligo.caltech.edu>
General Comments:
-----------------
(F. Raab)
Thanks to the good work by team PSL, we now have a temperature stabilized
reference cavity. Earlier measurements indicated that the observed
2K arm
length drifts were much larger than the expected earth tide and stabilizing
the reference cavity temperature has increased lock times by roughly
a factor
of two. We now regularly observe lock times of order 1 hour. We compared
drifts observed in Monday night's data run to the earth tide. It is
hard
to make a lot of such a short data set. The predicted tide was within
a
few microns per hour of the observed drift, but the prediction is
systematically smaller and shows a sign reversal not present in the
observed drift.
Mike Landry and David Ottoway have completed a compendium of mechanical
resonances in the current LHO 2k hardware. It is document number
LIGO-T000020-00-W. The 23-page document lists resonances by hardware
element in the body of the document and includes an appendix with
resonances listed by frequency. This provides a "fingerprint file"
that
will be useful for identifying features in power spectra.
This week the focus is on implementing autoalignment on the 2K arm.
Bake Oven:
----------
(K. Ryan)
LHO vacuum bake oven load #79, consisting of two ETM telescope assemblies,
was released earlier this week. This load did not include the
pieces of
LLO and LHO 4k pick off mirror assemblies as was reported last week.
I discovered this week that we have not been abiding by the "3%" dilution
that is specified in LIGO-E960022 but rather have been using a much
higher
concentration of PROTEX. Considering that the only LHO load to have
"failed" an RGA scan was one in which PROTEX had been utilized, I decided
to separate the mirror assembly parts from the telescope parts and
bake
them as independent loads. Hopefully, the "PROTEXed" parts will
have a
normal scan, but if there is a link I wanted to use the mirror parts,
which are representative of a typical PROTEX load, to help establish
this.
We will be observing the 3% dilution in the future, regardless.
Load #80, consisting of LLO and LHO 4k pick off mirror assemblies,
is
vacuum baking and should be released by 3.6.00.
Computing:
----------
(C. Patton)
Spent most of this week helping my new helper Oudone Voraphaychith,
a
WSU EE student, get settled in to his new job. Oudone will be
helping
to upgrade all the site PCs to Windows98 as well as helping with user
problems and any misc. jobs that come up.
So far Oudone has upgraded two PCs to Win98 and moved one of the
upgraded PCs out to the MidX station. The other is having some
additional software installed on it so that it can become the Guest
computer in the Common area of the Offices.
I have also followed up on a PO for the Exceed license upgrades,
followed up on getting Norton Antivirus software from the Caltech site
license. Continued network security maintenance, did the weekly
backups, helped setup a new Unix workstation for Michael Landry, helped
users with several printer and PC problems and kept the GC accounting
paper work up to date.
Controls:
---------
CDS
D.Barker
Built ADCU test stand in MSR for testing next release of ADCU code.
Updated dust monitor screens to include new monitors, and allow dynamic
alarm level changing.
Reconfigured control room alarms, new PSL alarms added. DAQ alarms
removed while DAQS configuration manager has socket problems.
Supported CDS installation at LLO. Built the LLO jdclient machine as
dual ported apache web server (control2/nashville). A. Ivanov installed
latest jdclient on this.
Replaced all Hanford ADCU timing cards with the latest version. This
allows all ADCUs to record the GDS ramp and 1PPS signals. The cards
which were released by this will be used for ASC in MY, and Excitation
engines in LVEA and MX.
Reorganizing LHO source code for inclusion into the LDAS CVS
configuration management system.
Reviewing all Hanford EPICS systems, will release all systems currently
running in test or dev mode.
Performed routine daily tasks; add channels to DAQ, add channels to
Backup, check daily backups, add new accounts, add new MEDM screens
to
site overview, fix sofware problems/hang ups in control room,
release
EPICS code for software development, etc.
Vacuum Controls
C. Patton
Modified the annulus ion pump summary on the site overview medm screen
so that the pumps in each building are grouped and labeled for that
building.
Modified the Gate Valve detail medm screens so that the gate valve open
and close buttons now call a Tk/TCL program which brings up a
confirmation window. This way it requires a two step process
to open or
close a gate valve.
Started changes to the cold cathode on/off buttons to call the Tk/TCL
confirmation program.
--
This is the first LLO weekly report written in the spirit of Gary's new guidelines. This initial report is consequentally very brief because normal discussions of routine installation progress have not been included, however items of project wide interest are listed below. I expect the amount of information will grow in the upcoming weeks as we learn how to utilize the new format to communicate information of project wide interest and to air issues and concerns which would benefit from discussion in this forum. - Mark Coles
Installation work: The Faraday isolator was re-aligned in the
optics lab using the 700 mW NPRO YAG laser. This time, we measured the
double pass isolation ratio (the isolation for the returning beam) by reflecting
the forward going beam by a reflector. When the second (downstream) halfwave
plate was optimized, the
isolation ratio and transmission for the returning beam were 37.4 dB
and 88%, respectively. Because the total Faraday rotation angle depends
on the laser power (due to the temperature dependence of the Verdet constant),
it will be necessary to adjust the orientation of the second halfwave plate
on the optical table in the vacuum chamber at nominal PSL power.
The ETM-x telescope and transmission monitor have been successfully installed and aligned. ETM-x mirror installation and alignment continues.
PSL: We are still struggling to understand and correct the sever power throughput defecit of the new pre mode cleaner. As of 7:30 Thursday evening, an inexplicable loss of 50% within the mode cleaner is observed. Investigation continues.
Beam tube bakeout: The beam tube temperature has returned to ambient on Y1. RGA data are being collected as this report is being written and will be reviewed by Rai Weiss and Allen Sibley.
GDS: The LVEA GDS Excitation Engine is now accesible over the net (gdslvea1). It is now being configured.
CAS training: Coarse actuator training was conducted Monday-Thursday at LLO. Mark Guenther and Hugh Radkins attended from LHO along with Rich Riesen and Joe Kovalik from LLO. It was agreed that Mark will be the software librarian for the CAS control software.
LIGO-TriNet Station: (Caltech remote seismic monitoring station
at the LLO site). Preliminary site surveying is underway. One area
of possible interest is the small triangular parcel of property along the
south arm on the opposite side of the borrow pit. This has been measured
using a seismometer on battery power and observed to have somewhat smaller
levels of seismic noise as it is furthest away from structures, roads,
and general site activity. Data was also collected from 11 other candidate
spots.
All activities for this week are covered in other categories.
No report this week.
| Installation:
Livingston |
Commisioning:
Livingston |
Other Science/Engineering
Activities |
Two weeks are included below - GHS
From Mike Smith March 2
I am working on getting the 40 meter layout drawing files, which at
the
present are drawn using the Ideas drawing package, translated into
ACAD format.
We are in the process of installing our triangular mode cleaner, and
this
week we glued magnets onto both of the diagonal, flat mirrors.
We also
glued fixtures and a side magnet to one of the mirrors. We are
using a
single side magnet per mirror, so the first flat mirror will be ready
to
suspend as soon as the vac-seal epoxy has cured to our
satisfaction. When we glued the magnets onto the first flat mirror,
last
week, we kept a small sample of epoxy from that procedure, and we found
that the sample needed nearly a week to completely cure. (Later samples
showed the same behavior, so we do not believe that this is a function
of
poor mixing.) Our back, curved mirror already has magnets and
fixtures, so
when we are finished preparing the flats, we will have a complete set
to
make a triangular cavity.
This past Tuesday, Feb. 29, was the last day Eric accepted comments
on his
"Thermal noise in coupled harmonic oscillators" paper, and all of the
comments received came in on that day. Eric have been assimilating
those
comments, as well as improving Proposition 3 in Appendix B, an estimate
of
the accuracy of the high-frequency asymptotic formula.
Also on Tuesday, Eric did some community outreach by participating in
"Futures Day" at John Muir High School, here in Pasadena. Speakers
from a
wide range of professions gave presentations to students about what
they
did for a living, why they liked it, and what preparation was necessary.
Most of the students had never heard of neutron stars, black holes,
or
gravitational waves, and they were very interested and asked a lot
of good
questions.
LASTI (Zucker, Shoemaker, Burgess, Kruzel)
-----------------------------------------
Vacuum envelope:
Continued installation of annulus pumps & control hardware.
Installed and tested main valve control interlock panel; permanent
wiring installation in progress.
Procured reducers for RGA nipple & built up vacuum controls relay
racks.
Mechanical internals:
The weather (snow & ice) has cleared up enough to rig the internal
seismic isolation components (received in January from Allied
Engineering) into the LASTI high bay. We've scheduled the Plasma
Fusion Center's 20 ton forklift & crew for Thursday 3/2.
Interferometer:
DHS is drafting technical & strategic plan for our initial interferometer
implementation to support of LIGO II SEI/SUS testing. This will be
distributed prior to the LSC meeting for discussion at the technical
advisory panel meeting.
Lock Acquisition study (Matt Evans)
The servo design leading to step 1 to step 2 (Michelson locked)
and step 4 (all mirroed placed at locked position, but the arm
power is not filled yet) to step 5 (all locked and power fully filled)
have been done. The recorded ground motion has been parametrized
and the e2e module of the stack has been made based on Ed Daw's
parametrization.
Mechanics simulation & PSL (Giancarlo Cella, Hiro Yamamoto)
Giancarlo calculated transfer functions of the PSL reference cavity
based on MSE (Mechanical Simulation Engine). Hiro calculated the
frequency noise caused by the cavity motion.
Giancarlo gave a talk at LHO on Feb.25 about MSE and the modeling
of the PSL reference cavity using MSE.
Giancarlo, Hiro, Rick, Michael and David had a meeting at LHO how to
proceed to assist the design of the PSL reference cavity. LHO member
measured the motion of the PSL table and the data is now reviewed by
Giancarlo. Rick proposed a several modifications of the cavity,
and Giancarlo will generate the mirror motion using the measured table
motion with difference configurations of the cavity propsoed by Rick.
This will include the deformation of the cavity as well to generate
the distance change of the two mirrors. When this is provided, Hiro
will
feed this mirror motion into e2e and generate the frequency noise.
Ringdown data analysis (Hiro Yamamoto)
Hiro obtained more data from Haisheng about the MC ringdown and the
detector
response used at the FP ringdown experiment analyzed last week.
With the detector response taken into account, the model calculation
of
the
FP ringdown power spectrum tallied with the measurement well.
Adlib basic improvements (Biplab Bhawal)
Biplab is working to implement the load/save (stop the simulation and
resume again later time) feature. Various problems found when using
e2e
for PSL was looked into account. The frequency noise is proportional
to
the frequency (~10^14) and the simualtion of the cavity with a tilt
of
10^-6~8 needs to be done correctly.
Biplab, Matt and Hiro discussed about the planning of the first e2e
paper.
This week was primarily spent testing the performance of the new
LDAS release 0.0.9 software. These tests were carried out in two
main areas:
- Socket Based Communications: It was learned that the tests of
LDAS lstrings were skewed in last weeks tests. This was
corrected
by making the tests consistent in size with 2,4 and 8
byte data
types. Early results showed much more consistent transmission
rates for lstrings when compared with integers and floats
but
there is something still unusual about the test so new
tests are
being performed to account for instantaneous fluctuations
in the
measured performance.
- Data Base Ingestion: The ingestion rates for data into LDAS
tables was re-evaluates with the new 0.0.9 release. Early
results
indicate that speed for tables which do not have blobs
has
increased by roughly 50%. There is a bug in the blob ingestion
code which prevents tests on tables with blobs. This will
need
to be debugged before further testing is possible.
LDAS was also busy preparing for implementation of several new APIs
this week. Documentation for the mpiAPI, wrapperAPI and dataConditionAPI
neared completion. Work has already begun on the mpiAPI and wrapperAPI,
but weekly meetings with the LSC have kept a steady but minor flow
of
new thoughts in the documentation for these two. The documentation
for
the controlMonitorAPI was only distributed this week and a kick-off
meeting
with programming staff was held to outline the relationships between
these
3 LDAS APIs. It was proposed at the meeting that the controlMonitorAPI
should be split into a server/client implementation allowing the GUI
component to be used anywhere. These APIs play an important role in
the
operations of the LDAS beowulf cluster. Another key component to the
beowulf cluster's software is MPI. LDAS has choosen the public domain
standard for Linux clusters - MPICH. The new version release in December
of last year has proven to be buggy and not fully supporting some of
the
standard. This week a major memory leak was discovered. LDAS reported
the
bug to MPICH but never heard back so we patched the leak ourselfs.
This
means that for the time being, we will be using a "custom" MPI implementation.
A milestone in the development of the version 4 FrameCPP I/O library
was
reached this week. The software still lacks support for the "table
of
contents" structure. However, since this structure is optional, it
means
that we could start to write frames based on version 4 of the frame
spec
and read the with the fully functional FrameCPP library once complete.
It
is worth noting that frames written with a "table of contents" will
support
much faster read access so implementing the full frame specificaition
is
still a high priority.
Stuart:
A re-write of the frame archive monitoring script to parse the
ftp logs and generate statistics on LIGO usage of HPSS.
Initiated discusions with CACR on the possibility of purchasing
a second 6,000 tape slot silo to hold the main LIGO data archive.
LIGO 40m/TAMA300 coincidence analysis (Mike Zucker, Julien Sylvestre)
----------------------------------------------------------------------------
JS found significant correlations between transients in strain, magnetometer
and seismometer channels from the 40m '99 run using an efficient statistical
time-frequency technique. Details at
http://space.mit.edu/LIGO/Research/julien/40mTAMA/bursts.html
MZ continued prototype development of "classical" matched-filter pulse
height
analysis for canonical (Gaussian-envelope sinusoid) pulse templates
on '99 40m data using Matlab. Scripts and some preliminary findings
posted at
http://www.ligo.caltech.edu/~wmajid/40m+tama/
Walid:
I have started to work on the fast Chirp Transform technique. I have
implemented a not so efficient but exact method to do an acceleration
search for pulsars. I am now trying to get a better feel for 2D transforms
and use it to check my results.
I have put together a draft of an LSC proposal to carry out a coincidence
search using the 40m and TAMA data. Work in this group is continuing.
For
an update, please have a look at:
http://www.ligo.caltech.edu/~wmajid/40m+tama
Lazzarini: We have received a large database from Battelle (PNNL)
which documents our use of the T1 link from LHO over most of past year
on a resolution of 5 minutes(!). I have filtered the data with an excel
spreadsheet and created set of plots (NOTE: pdf file size is 4MB):
http://www.ligo.caltech.edu/~lazz/distribution/ESNetUsage1999.pdf
The data are plotted modulo 24 hours to see time-of-day trends and modulo
31 days to see day-of-month trends. Integrated usage statistics results
in volumes
which seem too large and I am tracking this down. The data usage trends
are total flux to and from LHO, with no visibility into the destinations.
Peak BW usage is appraoching 0.65 T1 which we have confirmed is the
saturation level of single-socket transmission
over TCP/IP ethernet (2-sockets in parallel appoach the full T1 bandwidth).
We have asked for continued data from PNNL to allow us to watch the usage
trend.
We have talked to PNNL about opening up a second T1 line for LHO if
and when it is needed.
MIT:
Nothing to report.
Livingston:
Preparing for LSC and usual maintenance.
Hanford: (Christine)
Spent most of this week helping my new helper Oudone Voraphaychith,
a
WSU EE student, get settled in to his new job.Oudone will be helping
to upgrade all the site PCs to Windows98 as well as helping with user
problems and any misc. jobs that come up.
So far Oudone has upgraded two PCs to Win98 and moved one of the
upgraded PCs out to the MidX station. The other is having some
additional software installed on it so that it can become the Guest
computer in the Common area of the Offices.
I have also followed up on a PO for the Exceed license upgrades,
followed up on getting Norton Antivirus software from the Caltech site
license. Continued network security maintenance, did the weekly
backups, helped setup a new Unix workstation for Michael Landry, helped
users with several printer and PC problems and kept the GC accounting
paper work up to date.
CIT:
Suresh completed monthly full backup of LIGO servers.
Setup a PC with Windows NT workstation for Thomas Frey. Installed
couple of
applications (Microsoft Office, Eudora, Exceed, Secured Shell 2 etc
) required.
Installed a2ps (ascii to postscrit print) utility on sirius.
Resolved some of the networking problem of printers. Setup one
new user
account.
Barbara continued work on the web videos. I'm trying to
fix some clips with
single-channel audio and clips where the video freezes. Scanned
the photos
of the Nov 11 speakers.(Barbara actually resolved the video freeze
problem
today).
Made a large number of web site changes. Updated links
to Donna's pages
(again); updated LSC pages with meeting, MOU, attachment, and report
links;
changed all the LSC links to point to public document directories.
Updated the VB program that generates pages for the as-built
drawings via
the DCC database. Created pages for approximately 300 facilities
and BTE
drawings. A couple of drawings still have to be processed and
then the
pages will be published.
Met with Linda Turner again about changes to the DCC system for
version
control. The current plan will track different versions of drawings
for pc
boards. The DCC can track individual boards via serial number
using the
child table/form for serial numbers.
Larry worked a number of PC issues. Assisted in a build and resetting
of a
laptop. One of the lessons learned is that installing AOL can cause
a lot of
problems. Users should be sure to limit their installation and say
no to most of
the questions.
A number of PC's were having problems with things locking up
and dropping out.
After running Norton Utilities for Windows (from the CD) the problems
no longer
appeared on the systems. Loading Norton on a system and leaving it
on presents
its own set of problems and running it from the CD has eliminated that
issue.
Worked on the Amaldi server. It has a number of problems and will need
to be
completely gone over again.
Found the problem with the Simulation pkg. on IDEAS. A number
of patches and
libraries need to be installed on any machine running the SDRC s/w
pkg. locally.
Presently, sirius is the only machine that pkg. can run on. We will
be
installing the necessary items on the machines of the main users over
the next
few days. The DWG converter on IDEAS needs to be re-installed which
will take
some time and hopefully can be done in the next few days.
Worked a number of DCC issues. Resolved some problems with files
and setup a
few programs to help automate a few of Linda T.'s procedures in moving
documents
around.
Fixed a number of printer problems. All were paper jams or the
user forgot to
put in the correct media for the print job.
Helped Ed C. setup a number containers for shipping the E3000
and a couple of
monitors to Livingston. Also, did some work in preparing the units
themselves
for shipping.
Assisted a number of people via telephone for s/w installations
and
work-throughs on their PC's. I am working on a web page to get more
information
out on how certain pkgs. like ssh work.
Continued working on a number of procurement issues.
Worked with the SRL group in dealing with a few Cadence issues
they were
having.
Assisted Barbara in working through some of the LSC web setup
issues so that
Jennifer H. of MIT can perform her tasks dealing with the LSC WEB pages.
Thomas Frey joined the LIGO II effort this past week to provide additional support to R&D/LIGO II schedule and cost estimate preparation.
From: Michael Smith <smith_m@ligo.caltech.edu>
I attended the Aspen 2000 Gravity Wave conference and presented some
recommendations for scattered light control in Advanced LIGO interferometers.
From: GariLynn Billingsley <Billingsley_G@ligo.caltech.edu>
Specifications for a LIGO 2 pathfinder polish are nearing completion.
From: Helena Armandula <ahelena@ligo.caltech.edu>
>Placed RFQ with REO for the coating of sapphire test pieces.
>At the same time requested REO to schedule a coating run for the last
week
>of March to coat the test pieces.
>From: Sam Richman <srichman@ligo.mit.edu>
>stiff isolation system report
>
>Fabrication of ~95% of mechanical parts for the double active
stage
>prototype was completed by the main contractor, High Precision Devices,
of
>Boulder, CO. The blade springs, flexures, and clamps are in
production,
>with all parts expected to arrive at MIT on Wednesday 8 March.
The vacuum
>chamber to house the prototype was successfully pumped down.
The noise of
>the commercial inductive proximity sensors (to be used for very low
>frequency regime of the servos) was measured to be 10^-7 m/rtHz at
0.01
>Hz. Production of readout electronics for seismometers and cabling
continues.
>From: "Ryan C. Lawrence" <rclawren@ligo.mit.edu>
>
>I got the CO2 laser on tuesday, and am working on installing it next
to the tank
>and instituting safety procedures in the high bay (signs, lights,
goggles,
>etc.). The shielded ring analysis is nearing completion, and
I'm working on a
>double ring and shield solution. Rob Bennett (ugrad) is working
on instituting an adaptive
>meshing scheme into his finite element model of the scanning laser
method. Dave van Stroh (ugrad)
>is working on measuring the intensity distribution of the new ring
heater with
>the pyroelectric sensor.
From: kells@ligo.caltech.edu (Bill Kells)
>For last week I was preoccupied at the Aspen mtg which
>had mostly to do with Adv. R&D.
>I had/have been studying the the GW band "scintillation" noise
>which any material must have at finite temperature and with
>a dn/dT coefficient. This was inspired by the recent revelation
>of "Braginsky noise" which is closely related.
For additional information about this report, contact sanders@ligo.caltech.edu