The LIGO Executive Committee Agenda for Monday September 6, 2004 will be:
Cancelled
due to the holiday
no report
LIGO Laboratory Administration (Lindquist)
STATUS OF LSC MOUs (Petrac)
LSC Research Plans through Feb. 2005 and Prog. Reports through Aug.
2004
ACIGA
Attach. A / in LIGO review / Barish
Attach. B / in LIGO review / Barish
Attach. C / in LIGO review / Barish
Attach. D / in LIGO review / Barish
Attach. Z / in LIGO review / Barish
Balearic
Attach. A / in LIGO review / Barish
Attach. Z / in LIGO review / Barish
Carleton
Attach. A / in LIGO review / Barish
Attach. Z / in LIGO review / Barish
Caltech-CEGG
Attach. A / in LIGO review / Barish
Attach. B / in LIGO review / Barish
Attach. Z / in LIGO review / Barish
Florida
Attach. A / in LIGO review / Barish
Attach. C / in LIGO review / Barish
Attach. D / in LIGO review / Barish
Attach. Z / in LIGO review / Barish
GEO
Attach. D / in LIGO review / Shoemaker
IUCAA
Attach. A / to PI for sign-off
Attach. Z / to PI for sign-off
Prog. Report / in process for web posting
LSU
Attach. A / in LIGO review / Lazzarini
Attach. B. / in LIGO review / Shoemaker
Attach. Z / in LIGO review / Barish
Moscow State
Attach. A / in LIGO review / Whitcomb
Attach. B / in LIGO review / Whitcomb
Attach. D / in LIGO review / Whitcomb
Attach. Z / in LIGO review / Barish
Northwestern
Attach. A / to PI for sign-off
Attach. Z / to PI for sign-off
SLU
Attach. A / to PI for sign-off
Attach. Z / to PI for sign-off
Syracuse
Attach. A / in LIGO review / Barish
Attach. Z / in LIGO review / Barish
Trinity
Attach. A / in LIGO review / Barish
Attach. Z / in LIGO review / Barish
Columbia / New applicant
MOU / pending / Saulson
Attach. A / pending / Saulson
Attach. Z / pending / Saulson
Vassar
MOU / pending / Saulson
Attach. A / pending / Saulson
Attach. Z / pending / Saulson
SITE TELECONFERENCE (Lindquist)
A site teleconference was scheduled for Thursday, September 2,
2004. The following issues were discussed:
The list of assigned actions updated through August 26, 2004 may be found Here.
PROPERTY MANAGEMENT (Chargois)
From: Ed Chargois <chargois_e@ligo.caltech.edu
DOCUMENT CONTROL CENTER (Turner, Mak)
From: Linda Turner - turner@ligo.caltech.edu
From: Cleveland Mak <mak_c@ligo.caltech.edu
|
Week Ending
August 25, 2004 |
Packages |
Faxes |
|
In |
27 |
35 |
|
Out |
7 |
17 |
COST SCHEDULE CONTROL SYSTEMS (Cunningham, Brambila, Kaufman, Salone)
From: Esther Cunningham <esther@ligo.caltech.edu
From: "Brambila, Ruth" <Ruth.Brambila@caltech.edu
From: Gina Salone <gsalone@ligo.caltech.edu
From: Florence Kaufman <fkaufman@ligo.caltech.edu
Financial reports can be found at: http://docuserv.ligo.caltech.edu/~fireport.
(For passwords contact Florence)
SUBCONTRACTS MANAGEMENT (Petrac, Jasnow)
From: irena@ligo.caltech.edu (Irena Petrac)
From: Ed Jasnow <jasnow@ligo.caltech.edu
SUPPORT (Baldon, Kammerling, Lloyd)
Irene Baldon
Sharon Kammerling
Dorothy Lloyd
PROPOSAL and REPORTS (Lindquist)
Schedule of proposals and reports planned for the remainder of the calendar
year.
We have essentially completed the Annual Report with the exception of a few
missing pieces. Overall there is a lot of good stuff reported. Most
has been entered into FastLane. I think that it is basically ready to go
except for scrubbing the publications list.
A Final Report for the old LIGO Visitors grant has been submitted via FastLane.
CHANGE CONTROL/CONTINGENCY MANAGEMENT (Lindquist)
There are no open change requests currently in the system.
The Advanced LIGO SEI group proposed to the LIGO Excomm on 23 August that the
budget be increased for the ASI contract, adding on the order of $750K in funds
to cover a growth in expected expenses with a slight decrease in contract
scope. This will be discussed again next week.
HUMAN RESOURCES (Akutagawa)
From: Cindy Akutagawa <cindy@ligo.caltech.edu
Quality/Safety (Tyler)
From: Bill Tyler <tyler@ligo.caltech.edu
No report this week.
.
4K IFO
-----------
Initial measurements with the photon calibrator agreed well with results of our
standard IFO calibration procedure. Recent tests however showed a
divergence with accepted
calibrations. Investigations of the photon calibrator laser indicate the polarization
is adrift.
Having trouble keeping POX, POB and POY straight? Read on to sort the
changing geography. Two-omega traps noted previously in the weekly (when added
to AS photodiodes) were installed
on POX,
formerly POB.
WFS demod board changes
were effected to reduce noise.
The TCS sprung another small leak,
which appears to have been fixed.
The weekend phasecamera status was summarized.
Demod boards were next tested.
A data run
was made, and images made with the lower side band (which had been looking
pathological) were corrected
and understood with the previous
electronic transfer function measurements. Wavefront shapes
were extracted.
WFS offset drift observed,
a quadrant problem to be corrected.
Full
power of 7.4W into the mode cleaner was attempted; the IFO fell out of lock just as this power was
achieved. It is not clear what caused the lock loss (saturation of AS_I?)
but several likely culprits were excluded. We'll check trend plots to see
what is walking away at the end of this and other locked stretches - we don't have much
experience running at reasonably high powers.
Stable high power running could lead naturally to post-commissioning running in
a GRB and SN search mode in the early morning hours. Automated
data-archiving tools are in the works that could soon make this possible.
A revised
noise budget was obtained.
The H1 24.5MHz modulation index was measured,
coming in somewhat lower than expected at 0.25. RFAM levels at IOO
modulator frequencies were measured.
2K IFO
------------
2K work has been minimal this week: the current
ISC10 layout was photographed, and, work is gearing up on the TCS. A 2K
heating curve is a high priority on the IFO.
DAQ
------------
The LSC crashed
heavily on the weekend.
The EMC retrofit at the corner station is in the home stretch, with 100% of
equipment physically moved and most of the new wiring in. All the front end
processors have checked out and are operating. HEPI, the PSL and LOS and SOS
suspensions are now operational, and the IO systems are coming back online as
we write; we expect to be locking up the mode cleaner this weekend. ASC, LSC
and PEM are going to be hooked up after the Labor Day break.
Rai has completed a comprehensive overhaul of all WFS heads and demod boards,
bringing all up to current spec and tuning and repairing various bugs. We are
now ready to begin WFS commissioning once the wiring is checked out.
HEPI and IFO engineering (Oddvar Spjeld)
---------------------------------------------------------------------
- updated the HEPI Documentation web-site: All categories near complete with
exception of Mechanical, which will be completed at the end of next week.
- working with Brian O'Reilly, Rusyl Wooley and Mike Zucker on a solution for
mounting and supporting the Photon Calibrator case at LLO.
HEPI and IFO engineering (Rich Abbott)
---------------------------------------------------------------------
The week has been spent tracking down and solving issues that are preventing
HEPI SysID commissioning activities. These include such things as,
hydraulic offsets, weak actuators and alignments.
Made a small step forward in understanding hydraulic offsets today. We had a
persistent offset that appeared on HAM3 pier4 horizontal. The problem was
traced (thanks to Joe H's keen observation) to an un-modified pin valve being
swapped and put into the center plate (actuator plate) of the actuator. This
resulted in an inability to seat the pin valve and a bleed of pressure on one
side of the piston. The swapping occurred during the pressure measurement
sequence we were performing on this actuator.
An important diagnostic for checking the sealing effectivity of the pin valves
in situ is to ensure all small pin valves are shut, and then to close the main
large pin valve. This should shut off flow and establish equal pressures in
both bellows even if the bridge is unbalanced in the hydraulic valve. Doing
this and still finding that an actuator exhibits offset allows the seating of
the pin valves to be viewed as the likely suspect.
Now we are going to move our attention to HAM4 pier 3 in an effort to
understand the factor of 100 lower actuation gain there common to both the
horizontal and vertical actuator.
EMC Support (King)
---------------------------------------------------------------------
I was helping out with the re-wiring of thenew 1X8 and 1X9 racks along with
debugging the large optics suspensions after their rewiring.
CDS Computing (Chethan Parameswariah)
---------------------------------------------------------------------
All Real time and epicsprocessors in the lvea were fired up last week. SUS
local damping loops closed.
AWG moved to LVEA. Code change required to get the analog excitations now running
in the LVEA on one of the dcu processors is here and has to be put in. 115B DAC
card will be moved to l1adcupem processor and the excitation data sent over the
reflective memory network.
Cleaned up fibers and ethernet cables in the MSR.
Reading through and catching up on some code.
Sorted out some problems with HEPI processor penteks. Rich A. cut the clock
input lines on the A/D input cables and this fixed it.
Beam Centering video button and database added to the video system.
Safety & security (Riesen)
---------------------------------------------------------------------
Nothing new to report
Livingston Facilities (Sibley)
---------------------------------------------------------------------
(Ken Yoshiki Franzen)
---------------------------------------------------------------------
1) Took over HPLT related issues previously taken care by Rupal Amin. The
people at IPG Photonics think that they have found the bug in the system and
that they have fixed it. The problem was related to a missed cleaning step in
the pump to fiber coupling system. After testing the laser at 110 W for 40
hours they shipped it by misstake to Caltech. The Caltech people recovered and
sent it on to us at LLO. The laser arrived today and has been mounted to its
rack. Rich Riesen discovered that the outer door does not lock properly when
being closed so he removed the laser power keys and put a lock to the cable
(according to procedure). The door will be fixed until early next week and
testing will resume. Discussed safety issues with Rich Riesen regarding the
group of Russian scientist which will visit LLO and work in the HPLT as early
as from September 15 (depending on the laser condition and visa processing).
2) Studying the AdLIGO mode cleaner results from Amber Lynn Bullington's latest
Melody model. Seems like the coating absorptions will cause serious problems if
they are just a little bit over the current design value. Trying to verify the
results.
3) Took some ETMX optical lever power spectra with HEPI engaged. These data
will be used in order to design new filters. Tried to learn about the HEPI
control system so I can be of some use for commissioning.
4) Finished the S3 PG WaveMon rerun. Studying the results.
General computing (Roddy)
--------------------------------------------------------------------
After spending many hours on the phone with Bell South this week I have learned
several things about our 'net connection:
1) According to Ric Simmons at LSU, at the time of a service outage, Bell South
is required to give us a reasonable estimated time of repair. For every
day/partial day beyond this estimate, we are entitled to a 25% refund for
service of that month. This is according to what he was reading at the
time on the bid contract. I will try and get a copy of this from him so
that we can review it also.
2) Bell South has not been able to properly monitor this circuit since it went
live in December. This was admitted to me on the phone by the service
supervisor (tier two tech support?). The two repeaters in the circuit
(one in Denham Springs and one at the Goodwood CO in Baton Rouge) are not
configured properly to send SNMP traps. This means that when the circuit
goes down, Bell South does not even know it.
3) The multimode fibers on either end of the circuit are not monitored. This is
pretty standard according to Bell South. This is considered the end users
responsibility. They monitor up to the end of the Bell equipment and not
beyond.
4) They were showing a PSU fault on one of the Bell pieces of equipment but it
is not suspected that this was the fault from Friday, Saturday, or
Tuesday. They are still looking into this.
5) There is some maintenance/construction work going on concerning the bundle
of fiber that we run through. However, on Tuesday the work had not begun
and according to the supervisor on that job, the manhole cover had not been
opened yet, so it is not suspected that this was the fault.
Bell South is still at a loss as to what is causing the service
interuptions. Ric Simmons at LSU suggested that we hold a meeting with
the Bell folks, LSU & the state folks (since the contract is in the name of
the State of Louisiana), and LIGO. We have been live on this circuit
since December and we have only had a 3 month stretch of solid uptime.
The rest of the time has been plagued with outages.
Other than working with Bell since Friday, it has been the usual round of GC
stuff.
Also, I have tested some 'net based audio conferencing software with Larry and
others. This software holds hope for replacing VRVS.
Data analysis (Yakushin)
---------------------------------------------------------------------
LDAS admin:
Upgraded RLS server on ldas-gridmon and ldas machines.
Data analysis:
1) Working on S3 MDC production.
2) Got very preliminary results of waveburst triple coincidence sensitivity on S3
playground for gaussian and sine-gaussian signals:
http://www.ligo-la.caltech.edu/~igor/MDC_S3_P
The sensitivity seems to be about 2 times better for high frequencies and 5 times
better for low frequencies in comparison with what we had in S2.
see also the CDS weekly meeting minutes in the commissioning archives:
Rolf Bork reporting
- Primarily working on software to upgrade 40m lab systems
to use latest version of DAQ. This will be installed starting next Tuesday.
- Working on mods to LSC software to allow synchronous
ramping of filter module gains and input matrix values. This is by request to
support up/down scripts.
Ben Abbott
RFPD Redesign:
1) The prototype PCB is stuffed, and I have started
testing. The initial results look quite promising, with a peak-to-notch
difference of ~62dB.
2) The boxes are at the anodizer tomorrow, and will be
machined by Front Panel Express next week sometime.
3) Once the testing is complete, the revised PCB will be
sent to PCB express, and these boards will be stuffed as soon as possible.
Ben Abbott
TNI: I have been working with Akira to help finish the
digital servo installation that Jay designed.
Mohana Mageswaran
I have finished the LSC, ASC, IOO System drawings for LLO.
And were sent to Rus already. I am gathering the information about the systems
at 40m to create a web based documentation.
Mike Smith
I discovered that my Zemax model of the OMC was giving
incorrect results because I had inadvertently check a wrong property box for
one of the mirrors, which caused the physical optics propagation to stop at
that surface and substitute a ray trace. After correcting that problem, I am
relieved to see that the Zemax model agrees exactly with the Gaussian beam
propagation models that Keita and I calculated independently. Keita also
pointed out that the second beam waist in the 4-mirror cavity affects the
roundtrip Guoy phase; and for that reason, the solution he proposed with the
101.3mm and 76.3mm radius mirrors is a correct solution that has identical Guoy
phases for both the x and y beam waists. I am now in a position to model the
entire optical system, including input mode-matching lenses.
Ken Mailand
The main cavity spacer and the PZT holder bracket drawing
are at the CES shop, along with the 'invar 36' material,
Mike Gerfen estimated it will be finished near the end of the week of
Sept 6th.
Ken Mailand
I have received several components for the laser chiller
task (based on Phil Willems concept), and now completing the layout for the
test assembly. The test setup is in the west bridge OTF lab.
PeterKing
A pre-modecleaner is under construction to replace the one
on loan to
Stanford.
I have been going over the prototype ISS board, in
particular the
EPICS saturation monitor. Also the state code to
relieve the current shunt
dynamic range has been written, although I have some
reservations about the
current limit.
Lee Cardenas, Liyuan Zhang
OTF Lab. (W. Bridge)
The chamber has two samples, white Ceramabond, and disks of TRA-BOND #2254
color light brown epoxy. Cavity is locked.
We continue taking measurements everyday. No Change
Absorption Test Measurement prototype in standby
Scatterometer system in progress!!
We are going to measure beam scattering from one of the End test mass
(ETM)mirror.
So we are making a complete laser alignment y setting new optics to catch
the scattered beam. Beam waist measurement in progress as well as mode
match.
The Quantronix 60 watt laser NO CHANGE
OTF Lab at Lauritsen ROOM 38
NO CHANGE!
Cavity #3
Chamber is pumping with (6) disks of TRA-BOND #2151 color blue epoxy and
(4) disks of TRA-BOND #2902 color silver epoxy. The cavity is
locked.
We continue taking daily measurements.
Cavity #2
Taken to the shop to weld the leg support in place, still waiting in this
one.
New chamber is in place as well as the small 6" inches in diameter chamber
which will be dedicated for the samples only so we do not have to
disturb the laser alignment. Gathering all the components to build it up.
PSL Laser lab Laser in standby
The computer-controlled servo electronics are now up and running, and the boosts can now be engaged at the click of a mouse button. Many thanks to Jay Heefner for his help!
Drawings were created of the test stand needed to assemble, test, and
install the quad suspension. In addition a 3D rendering of the
installation process was completed to verify clearances to install the seismic
isolation with the upper half of the quad into the LASTI BSC chamber.
http://emvogil-3.mit.edu/~kmason/LASTI_9_1_2004/seismic_quad%20tooling/
Drawings of the existing suspension installation tooling were marked up to show
the changes needed to increase the capacity to raise the position the lower
half of the quad into the LASTI BSC chamber.
The clean room was moved from the y-mid station at LASTI to the y-end station
in preparation for the installation of the optics table on solid spools into
the chamber.
Additional work was done on the adaptive feedforward system. Work has continued
using a geophone mounted directly under the HAM to measure the ground motion at
higher frequencies. Rich has shown a reduction in the transfer function and
coherence to 20 Hz when the system is operated in a single degree of freedom
mode (vertical). Additional degrees of freedom cannot be run in this mode
because of limits on computing power. A corresponding reduction in the power
spectrum was not quite as impressive, most likely due to cross coupling through
the plant. For more details see LASTI ILOG August 27th.
Simulation and Modeling
(Bhawal)
E2E Weekly Physics Meeting
---------------------------------
Biplab gave a talk on "Mirror phasemaps and WFS signals". After that
we discussed an issue raised by Hiro on the difference between eigenstates of
sidebands and carrier upon reflection from arm-cavity input mirrors. Viewgraphs
available at
http://www.ligo.caltech.edu/~e2e/ME2ET/Minutes04/040902/
Mirror phasemaps & WFS signals
------------------------------------
(Biplab) The manual angular correction using WaveFront Sensor(WFS) signals
calculated from FFT output beams (for H1 interferometer with actual mirror
maps) finally worked well and pitch angular offsets could be reduced from a
level of ~1E-8 rad (offsets equivalent to asymmetries in mirror phasemaps) to
below 1E-10 rad. The WFS matrix was calculated by taking average of two
matrices for plus and minus 1E-8 rad angular perturbations. The corrections of
pitch offsets (and the consequent reduction in WFS signals) do not
necessarily reduce/affect the asymmetries in output beam profiles of carrier
and sidebands to the same extent at the WFS locations. These and other
aspects of this D.C.-corrected H1 interferometer are being studied. The
final aim is to know if/how this affects the shot-noise sensitivity.
MiniLIGO & Site-related Work
---------------------------------
(Matt)
I have been working on two things, one of them site related, one of them
simulation related. The simulation work is on a version of MiniLIGO
(which I call TestLIGO) that uses a different locking scheme. This scheme
involves using DC signals to lock MICH at mid-fringe, which makes the recycling
cavity low-finesse. The error signal for this (AS_DC/POB_DC) is always
good and thus state 2 can be captured and held easily from any initial state. I
have not managed to achieve full lock with this scheme. This work has potential
to aid both LIGO 1 and Advanced LIGO and I hope to present a working version in
one of my talks at the Roma conference.
The site related work that I have been doing involves the construction of small
C++ programs that can be run from Expect scripts to robustly automate a variety
of tasks which depend on access to real time data (e.g., diagonalization, UGF
setting, smart script pausing, etc.). I hope to have this work mostly
done before my trip to LLO on the 13th so that it can be applied while I am
there.
FFT work
----------
(Hiro) The cause of sideband imbalance in the Michelson cavity is being investigated.
Phil made phase maps representing the beam splitter thermal lensing effect. The
code is being modified to use these phase maps. The FFT code is modified to add
functionalities and easy of use for these studies and the WFS work done by
Biplab.
FFT phase map
-------------------------
Xiao and Hiro worked to write a documentation (T040156) of creating the
phase map input files for FFT, including the algorithm of smooth extrapolation
to unmeasured region.
Code maintenance
---------------------
(Hiro) e2e code is being updated for better conformance with the C++
standard (in other words, newer version of gcc)
Alfi
-------
(Melody) Continuing modifications to display the FUNC_X variables in a
friendlier user interface. Currently working on the simple view
which parses the C++ code in the MemberDecl primitive setting.
Data Analysis Activities (Lazzarini)
Mendell:
The StackSlide code has been updated with a new option to output the Loudest
Event (highest StackSlide power) for each template (each sky position and set
of spindown parameters in a search). For comparison with Hough and Power Flux
I've posted the StackSlide S2 L1 Loudest Events for each sky position for the
352.75-353 Hz band. See the PULG S2 investigations page (pulg password
required):
http://www.lsc-group.phys.uwm.edu/cgi-bin/enote.pl?
nb=puls2stackslide&action=view&page=13
Shawhan:
* Spending lots of time organizing the S3 untriggered burst search.
* Configured the 'getFrames' utility to be able to retrieve S3 h(t)
frames
(produced by Xavier Siemens), and also GEO data. See
http://www.ldas-sw.ligo.caltech.edu/ligotools/dataflow/UDN_List.html
for the UDNs and available time ranges.
* Working on checking the observation time of the S2 binary neutron star
inspiral analysis.
* Contributed a cgi-bin script to let people request a username/password
for the LIGO Gnatsweb problem-reporting system:
https://ldas-sw.ligo.caltech.edu/cgi-bin/gnatsweb_account.cgi
Yakushin:
1) Working on S3 MDC production.
2) Got very preliminary results of waveburst triple coincidence
sensitivity on S3 playground for gaussian and sine-gaussian signals:
http://www.ligo-la.caltech.edu/~igor/MDC_S3_P
The sensitivity seems to be about 2 times better for high frequencies
and 5 times better for low frequencies in comparison with what we had
in S2.
Sutton:
This week I have been performing the nonzero-lag analysis on the full LIGO-TAMA
data set to determine background rates vs thresholds for the analysis. I
have forwarded background coincidences to Cadonati for r-statistic
processing. With Lazzarini I have been formulating a procedure for
comparing our standard burst search results (rate upper limit and efficiency
estimates) to the excess events reported by the Explorer-Nautilus group.
The essential ingredients are the model waveform, the angular distribution of
sources over the sky, and a distribution for the source amplitudes. We
have agreed on everything except the best amplitude distribution, which we're
working on. I am also looking at whether we can do the comparison with
the S2 LIGO-TAMA data set; our sensitivity may not be quite good enough.
Together with with various burst group members, I have been formulating plans
for S3 bursts searches. Finally, I'm working on the calibration tool for
the DMT, with Zweizig.
Lazzarini:
Working with Joe Romano, Fritschel to finalize the S3 H1H2 numbers for
stochastic backgrounds.
LIGO Data Analysis System
Software Systems (Blackburn)
The 1.2.0 release of LDAS took place on Tuesday. After running for a couple of
days at the observatories an issue with performance was discovered which slows
down the diskCacheAPI by a factor of about 5 to 10X. This has also been seen at
MIT and LLO, but not at CIT, TEST or DEV. It has been determined that the
effected systems have duplicate frame data sets stored in multiple
subdirectories under the diskCacheAPI's directory mount point list and that
this is triggering a bug in the diskCacheAPI that isn't seen on systems that do
not store multiple copies of the same frame in different directories. A fix to
this problem is being worked on, but the diskCacheAPI is currently fast enough
that this is not causing a critical problem. We will probably patch the 1.2.0
release with a fix once it has been fully tested.
Documentation announcing the release on the web at both the LDAS websites and
the DASWG websites have been updated to reflect the 1.2.0 release. As part of
this documentation process a new FAQ has been generated. Details of the changes
since the 1.1.0 release can be found at the URL:
http://www.ldas-sw.ligo.caltech.edu/cgi-bin/faqprocessor.cgi?
q=What%20has%20chan
ged%20from%20version%201.1.0%20to%201.2.0
Began working on support for multiple frames per file in the frameCPP and
frameAPI. This will be needed for the new flexible RDS frame file methods
planned for the next release of LDAS to be used in the S4 science run.
Continued to work on the generalization of the definition of the time interval
object for the diskCacheAPI that will be available in the next release of LDAS.
Updated the TclGlobus website to include links to the new TclGlobus CVS
repository on LDAS-SW and the new GNATS problem tracking system on the web.
We have a new software developer for the TclGlobus project that started with us
this week (Mike Samidi). Mike has already closed out the first two problem
reports in the TclGlobus problem tracking system.
Hardware Systems (Anderson)
Caltech
-------
(Dan Kozak)
* Continued the transfer of non-run second trends for both LHO and LLO
(about 1,000,000 files total) from HPSS to SAM-QFS (and their subsequent
deletion from HPSS).
* Of the 458620 LLO files, we've transferred 456375 as of this writing (99%).
* Of the 526258 LHO files--we've transferred 320035 as of this writing (61%).
* Mike Gleicher may have fixed the SFS backup problem in HPSS (I know he
was doing stuff on the system, but never got word back from him). In any
case, it seems to be working without my moving the SFS backups into a
different filesystem by hand.
* Still working on getting a quote from STK for silo maintenance.
* Have been working with Sun on the problem where shared clients (in this
case alterf) ask for files, but they never get staged.
* Have got a case in to Sun about the test 3510 in Millikan's flakey behavior.
(Hari Pulapaka)
* Updated the condor installation across the CIT cluster to version 6.6.6.
* Setup a common location /grid to install grid related components.
* Updated RLS servers at CIT and confirmed that LLO, LHO and MIT have
also upgraded.
* The C01_LX time domain calibration data transfer from UWM has been completed.
(Al Wilson)
* Adding a new check point to BB to monitor SAM-QFS log files sizes.
* Setup Bosco desktop computer.
* Replace hard drive in IDE raid unit.
(Stuart Anderson)
* Collecting price quotes for additional LDAS computing resources: (tape
drives, disk drives, network switches, servers, nodes, ...).
* Helped distributed the LDAS-1.2.0 release and track down a performance
problem with the diskcacheAPI.
MIT
---
(Keith Bayer)
* Added a bunch of grid users to MIT cluster.
* Working on getting Matlab R14 installed on gc in preparation for cluster
use.
* Experimenting with pcraid#7.
* Rebuilt 4 of 5 failed cluster nodes (5th one won't post - will use it
for parts).
Livingston
----------
(Igor Yakushin)
* Upgraded RLS server on ldas-gridmon and LDAS machines.
Hanford
-------
(Greg Mendell)
* Besides routine tasks, this week I am testing or preparing to test
createRDS jobs with the new version of LDAS (v1.2.0).
(Ben Johnson)
* Fully updated firmware on test 3510-10 at CIT. The 3510 crashed under
the test load afterwards; though this is said to be typical for
that
unit.
* New 45kVA transformer is now fully active. 56 nodes are now running
on it; i.e all LDAS computers, except for the old dataserver, are now
running on panels with a thermal trip.
* Continuing to educate users how to use DTT to see data on the SAMFS
systems.
* Added a user to the cluster.
General Computing (Wallace)
MIT:
(Keith)
-Working on installing Sun ONE compilers on straw
-Installed Solaris 9 on aneirin (CDS gateway machine)
-Upgraded firmware on HP4600 printer
-Investigating linux mathematics / matlab / ligotools install for gc
Livingston:
(Shannon)
After spending many hours on the phone with Bell South this week I have learned
several things about our 'net connection:
1) According to Ric Simmons at LSU, at the time of a service outage, Bell South
is required to give us a reasonable estimated time of repair. For every
day/partial day beyond this estimate, we are entitled to a 25% refund for
service of that month. This is according to what he was reading at the
time on the bid contract. I will try and get a copy of this from him so
that we can review it also.
2) Bell South has not been able to properly monitor this circuit since it went
live in December. This was admitted to me on the phone by the service
supervisor (tier two tech support?). The two repeaters in the circuit
(one in Denham Springs and one at the Goodwood CO in Baton Rouge) are not
configured properly to send SNMP traps. This means that when the circuit
goes down, Bell South does not even know it.
3) The multimode fibers on either end of the circuit are not monitored. This is
pretty standard according to Bell South. This is considered the end users
responsibility. They monitor up to the end of the Bell equipment and not
beyond.
4) They were showing a PSU fault on one of the Bell pieces of equipment but it
is not suspected that this was the fault from Friday, Saturday, or
Tuesday. They are still looking into this.
5) There is some maintenance/construction work going on concerning the bundle
of fiber that we run through. However, on Tuesday the work had not begun
and according to the supervisor on that job, the manhole cover had not been
opened yet, so it is not suspected that this was the fault.
Bell South is still at a loss as to what is causing the service interruptions.
Ric Simmons at LSU suggested that we hold a meeting with the Bell folks, LSU
& the state folks (since the contract is in the name of the State of
Louisiana), and LIGO. We have been live on this circuit since December
and we have only had a 3 month stretch of solid uptime. The rest of the
time has been plagued with outages.
-Other than working with Bell since Friday, it has been the usual round of GC
stuff.
-Also, I have tested some 'net based audio conferencing software with Larry and
others. This software holds hope for replacing VRVS.
Hanford:
(Christine)
- Network usage can be seen at
http://www.ligo-wa.caltech.edu/~christin/mrtg/
198.129.208.1_198.129.78.122.html
- Finished a proposed budget for FY05 Hanford GC needs. This includes
upgrading the data storage and backup systems for the user files. I plan
to double the current disk space and go to a raided disk system. This also
requires buying an additional tape drive for the existing library to handle the
increased data to be backed up.
- Cleaned up some laptops loaned out during the LSC meeting. Installed
Spyware and the latest Matlab and SSH on them. Made sure Norton and
Windows updates were up to date, etc.
- Installed Spyware on the guest PC.
- Other misc. user support.
CIT:
(Mike)
-Patrick Sutton: Troubleshot a performance issue on his laptop. I corrected
this issue and updated security settings and GC software.
-Phil Lindquist: Laptop picked up a virus. I was able to clean this for him,
but this will still require a rebuild. This is due to the type of virus he had,
which creates backdoors.
-Janeen Romie: I reinstalled Solid Works and updated the Algor software.
-NTSRV's: I updated Pictor, which is the FlexLM license server for one of our
engineering software packages (Algor) Ghost backup server had some major
issues. When making an attempt to run end of month backups the server crashed
on me. It turned out, that I needed to free up some additional disk space.
-Worked up in SCR troubleshooting a network connection. I also updated VRVS
software once again. This was due to another update released on the 8-30, by
VRVS.
-Wilson House (back): I worked over on the community workstation located in the
back house. The LIGO user account somehow ended up getting corrupted. Therefore
some of the GC software was no longer working. I ended up deleting that account
and creating a new LIGO account; plus I transferred all old data over to new
account.
-Mohana Mageswaren: I worked on her computer due to user being swamped with
many popups while on the Internet. I loaded X-Terminator and reloaded
anti-virus software. While I was working on this computer Norton picked up a
couple of viruses, but failed to quarantine these files. I manage to clean this
computer by uninstalling and reinstalling Norton Anti-virus.
-Linda Turner: I continued to reload her officeworkstation, but came across
some hardware issues, ranging from hard disk failures, to motherboard issues. I
spoke to Larry Wallace about this and we decided to give her a newer computer.
This will require another complete reload.
-Barbara Simoni: Her workstation down in OTF had a hardware issue. I have
corrected this, and she is now back up and running. -Worked on many other user
onsite/phone support this week; these were mostly printing, networking, and
software issues.
(Veronica)
- LIGO website: Helped set up a presentation for last seminar. Posted updates
to the seminars webpages. Updates to other LIGO webpages.
- LSC website: Posted updates to the documents and webpages. Updates to the
roster database to reflect status changes of some LSC members. Discussed with
Thomas the procedures of managing the roster database, as well as the ways of
generating the authorlist; we both have been working on automating it and both
concluded that the optimal way is the current procedure.
- CaJAGWR: User support.
- Project Science website: Updates to the website.
(Lisa)
On vacation
(Larry)
-Working on a number of purchases. Looking into augmenting the backup system
and increasing the scratch disk space for the users. Assisted/assisting a
number of others with their purchases to finish out the year. Working a number
of maintenance contracts including SUN and the SDRC/IDEAS pkg., both are going
to take some real time to make sure things are correct.
-Assisted a number of users with account modifications. Added a couple of new
users. Still working on cleaning out a number of users that have left the
project. Along that same line we are looking at a number of modifications to
the e-mail alias configurations in-order to accommodate the diversity of groups
working with LIGO.
-Spent time each down going throughthe mail filters checking for false
positives. The filters may get reworked when Lisa gets back next week.
-Worked on the backups. All of the home accounts have been backed up and now
working on specific system backups.
-Installed some more equipment inthe server room. The new UPS is working and
presently working on the configuration of the new sandbox.
-Helped one of our visitors make it to urgent care, fortunately is was nothing
serious and Lisa took care of most of the logistics.
-Installed a new set of SUN patches on a couple of machines, for
testing.
Mail Stats 08/26 - 09/01/04
Messages Accepted:
Spam Rejected:
Viruses Rejected:
False Positives:
From: "Thomas Frey"
<tfrey@ligo.caltech.edu>
Progress Period from 08.27 to
09.02
Out of the Office on
8.30 sick.
·
·
See http://www.ligo.caltech.edu/~tfrey/index.html for a
complete listing of all project related cost and schedule data.
Accomplishments:
·
·
Sub-system
PLANNING activities
§
§
Continued work on preparing web space for posting Adv. LIGO reports.
("The Whole Enchilada")
§
§
Continued the input of changes / preparing RFIs / responding to RFIs, as
a result of the meetings with Carol and the Subsystem Teams.
§
§
Executed weekly telecom with Carol W. regarding ongoing efforts for
revising AdL project data.
§
§
Prepared report as requested by Carol W. showing all key milestones
related to LASTI.
§
§
Executed telecom regarding LASTI installation and testing.
§
§
Finished work on LASTI schedule changes as provided by Carol.
§
§
Executed a telecom with Carol W, and Alan W. regarding 40-Meter progress.
§
§
Executed a telecom with Carol W., Garilynn B., and Helena A. regarding
COC progress.
§
§
Finished preparing comprehensive FY2005 data as requested by Carol W.
·
·
ROSTER DATABASE:
§
§
Continued to work with Irena to provide Barry with information regarding
FTEs and Institutions.
§
§
Updated and posted the approved version of the LSC S2 Authorship List
§
§
http://www.ligo.caltech.edu/~tfrey/authorship/compare.htm
·
·
COST BOOK DATABASE:
§
§
Nothing new to report.
§
§
http://www.ligo.caltech.edu/~tfrey/rd2005/Acct_Stats.htm
From: Larry Jones <ljones@ligo.caltech.edu>
Advanced LIGO Seismic Structure
SEI Structure:
Based on ASI's verbal, "off the cuff" estimate for HAM unit design of
$600K, the LIGO Executive Committee agreed to fund the completion of the ASI
contract with conditions as described last week, pending the processing of the
appropriate Change Request. A written estimate was then received from ASI,
showing $807K for the HAM unit design task. ASI is now working on various
issues to reduce this to the neighborhood of $600K. A letter was given ASI with
authority to proceed with advance procurements needed for the fabrication of
the BSC prototype unit for LASTI: springs & flexures, spring test fixture,
pods, aluminum plate stock and blade clamp bolts.
The detailed drawings for the pods and the spring test fixture are completed.
The detailed drawings for Stage 0 of the structure will be completed this week.
Eighty per cent of the detailed drawings for Stage 1 of the structure have been
reviewed in the drawing check process. Drawing bid packages will be organized
and sent out for bids shortly.
Budgetary needs are being developed for FY05.
Actuators:
Kyle Ryan is nearly complete with the Thermal Vacuum test of the large actuator
at LHO. Preliminary results are within the range expected.
PSI is proceeding with fabricating the 6 large and 6 small actuators for the
BSC prototype structure. 148 magnets (not yet magnetized) were received at
Caltech for precleaning. Bob Taylor inspected them, saw several small chips and
noted that two of the magnets for large actuators were missing. These facts
were passed back to PSI.
Displacement Sensors:
ADE is proceeding with fabricating and testing the 14 displacement sensors for
the BSC prototype structure.
Accu-Glass is proceeding with fabricating and testing the 3 feedthrough flanges
for the BSC chamber at LASTI, with 16 feedthrough fittings each.
Seismometers:
Nothing new
Galling/Dusting Test:
Nothing new.
From: Janeen Romie <romie_j@ligo.caltech.edu>
Continuing to work with Caroline Cantley, Sheila Rowan, Helena
Armandula and Thomas Frey about the ribbon process design and the optic ribbon
attachment design. We will have another scope meeting on Friday.
Participated in the LASTI Planning meeting today.
Working on an alternative eddy current damper design.
From: ctorrie
<ctorrie@ligo.caltech.edu>
I was on vacation and then was in the UK for 2 weeks organising a new VISA,
visiting RAL and working at the University of Glasgow, full report to follow.
1. QUAD Update
Several bench tests have been carried out recently of aspects of the
suspension, pictures to follow.
When MPL was visiting from
The drawings for the lower masses that we will use in the controls prototype,
that is to say the test mass and penultimate mass in both the main and reaction
chain are nearing completion.
Russell Jones and are laying out an alternative method of splitting the
suspension. It is hoped that this will ease some of the concerns relating to
assembly and installation. More details to follow.
2. SolidWorks 2004
All of the groups involved in the suspension team have now upgraded to
SolidWorks 2004 in line with seismic groups. There are no plans to change to
2005 and I would resist such a move. RAL continue to use PRO E. The STEP
Translator is used to exchange files.
3. Blades
CES are making the blades for the controls prototype. Another local company
Valley Precision are also manufacturing some blades for us. The reason for also
choosing VP was to investigate if it was possible to relax some of the
requirements and in turn save on both time and money.
4. Design Meeting
http://www.ligo.caltech.edu/~ctorrie/QUAD_ETM/quad_etm%2520setup%20page2.html
5. Visits
During my visit to the
Tim Hayler October 3rd to
Mike Perreur-Lloyd October 18th to
Ian Wilmut Nov 8th to Nov 25th
Russell Jones Nov 29th - Dec 4th TBC
Caroline Cantley & Norna Robertson (TBC)
* Tim Hayler is a new recruit to the suspension team. He is based at RAL and
will start work on noise prototype work from
From: Bill Kells
<kells@ligo.caltech.edu>
In conjunction
with the LSC, I got involved with several (hotly debated !) issues on the
optics design. The downselect had several important issues I considered: the
coating loss/uniformity, and how point scattering (as observed in LIGO I) might
affect that. Also worked on thermal compensation analysis with respect to
properties we are studying now at high power at LHO 4k. Taking this all back
home, I have been working with Hiro on analysis of what this all means.
With Liyuan Zhang back (from CERN) we have begun our experiment to identify the
HR surface point scatter source (is it just "dust" ?). I spent some
effort to glean some more on this while at LHO, but the necessary instrumentation
was at LLO (where ?). One thing resolved (LHO e-logged) is the
"twinkling" of point scatters on the BS and FMs: its clear now that
this is just those mirrors swinging through the RC standing wave nodes.
From: Helena Armandula <ahelena@ligo.caltech.edu>
Advanced LIGO Coating Development
J.M.Mackowski will be at Caltech a week from Friday on September 10th.
The possibility of coating sapphire substrates with Al2O3 and doped Ta2O5 will
be addressed during his visit.
A sapphire and a fused silica substrate are being coated at LMA (in the large
coater). Optical absorption homogeneity will be mapped on those pieces.
The coating formula used will be Formula 5, with a dopant percentage between
Formula 2 and 3.
From: GariLynn
Billingsley <Billingsley_G@ligo.caltech.edu>
The sapphire optics made for measuring Q and thermal noise in the style of
Kenji Numata are complete. The Q substrates have already shipped to
From: Michael Smith <smith@ligo.caltech.edu>
AOS
I have begun to update the development schedule and cost for the AOS subsystem.
From: Riccardo
DeSalvo <desalvo@ligo.caltech.edu>
Please see
http://www.ligo.caltech.edu/~desalvo/weekly2sept04.doc
For additional information about this report, contact whitcomb_s@ligo.caltech.edu