Weekly Report for Week Ending February 6, 2003

The LIGO Executive Committee Agenda for Monday  February 10, 2003 will be:

 (Meeting time: 10:30 am Pacific Time)

Open meeting 10:30 - 11:30

1. Announcements
2. LSC Issues (Weiss)
3. Comments on Weekly Report
4. WBS 1 LIGO I Construction (Lindquist)
• Field Change Orders/Contingency Liens/Change Requests
5. WBS 2 LIGO Lab Operations
• Administration (Lindquist)
• Sites (Raab, Coles, Shoemaker, Sanders)
• Detector (Whitcomb, Coyne)
• Campus Research Facilities (Weinstein (40 Meter), Libbrecht (TNI), Zucker(LASTI))
• Data Analysis and Computing (Lazzarini)
6. WBS 3 and 4  Advanced R&D and LIGO II (Sanders)
7. CHANGE CONTROL BOARD/TECHNICAL REVIEW BOARD SESSION AS NEEDED

Special Items:   Outreach Proposal status, Adv LIGO proposal status, Aspen meeting reprise, Status of UL papers and AAAS talk

Special Announcements:

Weekly Report Highlights
 

LSC Issues (Weiss)

no report

LIGO I Construction/LIGO Laboratory Administration (Lindquist)

LIGO Weekly Site Telecon (Lindquist)

There was a site teleconferences held on Thursday, February 6, 2003.  The following issues were among those discussed:

Outreach proposal should be ready to go into FastLane today.

LLO LN2 Tank Incident: Truck driver hooked to tank and attenpted to drive away still hooked.  There was considerable slack in the 2 inch copper piping, which prevented leakage.  Tank is undamaged. Valve at top was closed; no spillage.  Air Liquide has provided an accident report, and LIGO will be preparing an accident report.  Air Liquide plans a safety meeting and will come back with a response after that.  Potential fix is to only allow trucks on site that have appropriate interlocks.  Onus is on Air Liquide.

Traffic Control Gates: Alan wants to set up a time for a presentation by the archetects next week to go over alternate ideas for location and approaches.  More information tomorrow.

At Hanford, electricians are wiring.  Gate should be up and mechanically operational shortly.  Operation will be via keypad or from Control Room.  There are sensors for permitting exit.

Hanford Construction: Hope to have cost estimates for proposed modification for the Laboratory Building by next week.

Livingston Construction: Still do not have final occupancy certificate.  Will be inspected next week.  Expect that we have addressed all issues.

Reporting Time for Shift Operators: Operators work 40 hour schedule, on four days and off four days with an adjustment every eight weeks, working often weekends and holidays.  Time keeping system is not set up to handle time reporting for shift operators.  Action is for Fred, Ed and Cindy to take this to Alan Rice for discussion and awareness to be followed up by discussions with HR.

Property Issues: Hanford Inventory in process and going well.
 

The list of current actions revised to reflect the status of open actions assigned through January 16, 2003 may be found at ACTION LIST.

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

• No report this week.  Ed is at Hanford to conduct an inventory.

>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

Nothing significant to report.

Reminder to LIGO staff:  Please make sure that as a minimum, each document submitted has a LIGO number, author's name, and date.  It's surprising how many documents are missing one of more of these essential pieces of information!

ACTIVITY

• Completed placing insert sheets in all contract files that have been closed. These inserts inform us that a close-out file exists and is located in the sub-basement storage.
• In the process of a major DCC file overhaul.  All files are being shuffled around (including transferring some to the sub-basement storage area) to accommodate for new incoming documentation.
• Processed and distributed a handful of invoices.
• Made copies of the "Electronic Funds Transmittal (EFT) Form for Employees" and distributed accordingly.
• Electronic document activity remains steady as usual.
DCC Activity


WE 02/06/03	Packages	Faxes
In	25	27
Out	9	17

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

Press here for ACCOUNTS PAYABLE HISTORY DATA .

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

• Completed change order #2 to Johanna Otto to add funds for additional items.  Closed out the blanket PO to Jailand Ralls as requested.  Closed old Oracle purchase orders and removed encumbrances as requested by Dot.  Printed out the Oracle list of old PO's through Jan 31, 2002 to check with Dot which PO's need to be closed this month.  Completed an expenditure type change on Newark Electronics, and a fund transfer on EGO as requested.
• Working on change orders #5 & #6 to University of Michigan.
• Responded to correspondence, inquiries, and emails from vendors and end users.
• Placed pcard orders, returned shipments for credit, and reconciled pcard orders.  Following up on obtaining current certifications for this year on subcontracts as the subcontracts come up.

• Processing POs, preparing for audit, and doing vendor followup.

• Worked on monthly reports for January.
• Noted a minor problem with application of Indirect Charge in one Operations account and another in the old R&D Award. Notified Project Accounting about these problems and will monitor to make sure that they are corrected.
• Looked over the preliminary worksheets for the LIGO Outreach Proposal.

• Financial reports can be found at: http://docuserv.ligo.caltech.edu/~fireport

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

• Nothing significant to report.

• Work continues on putting the modifications for the LHO Laboratory Building under contract to Chervenell Construction.  These include the double glass doors and the sun shades.

• A presentation is being scheduled to present alternative locations for the access control gate at LLO.  These have been compiled by a consultant working on the entire design.

>Irene Baldon

• Processed the paper work for three (3) new/revised trips and there are eight (8) trips which are in various stages of completion before ticketing can be done and/or paper work completed.  Also assisted P-Card holders with their travel plans/reservations or revisions.  Until further notice I will be doing travel for LHO travelers.
• Completed twenty (20) Expense Reports and there are ten (10) reports yet to be done.  I continue to contact travelers who have outstanding Expense Reports (more than one (1) month old) to ask for their cooperation in sending me their receipts so that I can close their trip(s).
• Reconciled twenty (20) P-Card items which required numerous phone calls to hotels, etc. in order to track down which traveler incurred which charge, and the pulling of each traveler's file to assure that charges are correct for each fee incurred.  Assisted a few travelers with their questions in regard to their P-Card and/or reconciliation.
• Attended a meeting on the new upcoming Electronic Funds Transmittal Form (EFT) for traveler's direct deposit of expense funds.  LIGO has agreed to once again be the pilot for a new travel program for Caltech.  I prepared and mailed the EFT Form for all LIGO personnel to fill out and return to me by February 21, 2003.  It is hoped that we will be able to initiate this pilot program starting April 1, 2003.  Your cooperation in promptly returning the form to me (Irene Baldon, M.C. 18-34), filled out, with a VOIDED check or deposit slip attached, is greatly appreciated.
• Worked on the preparation and distribution of the Travel/Vacation Itinerary for February 6, 2002.  Arranged teleconferences and entered reservations on the LIGO Calendar as needed.  Performed normal recording and filing associated with Travel and Reimbursement.
• I continue to do MIT's travel to the sites for installation activities and also to assist them wherever possible.

• Processed the usual invoices for payment.  Tracked and followed up on invoice problems. Reviewed and recorded payments processed by Esther for the period January 20-31.
• Processed the usual requisitions, change orders and payment requests.
• Continue to monitor contract and blanket order encumbrance and notify task managers when supplements are needed.
• Jim continues with data entry in the LIGO database and helping out in the DCC.

• Nearly ready to submit Outreach Proposal/Budget (Temp# 6222862) to NSF - Coles/Lindquist/J.Andrews.
• Converted 3rd floor storage room into "copy room."
• Ordered/Received February office supply order.

Advanced LIGO (Frey)

No report this week...they are working hard on the Advanced LIGO Proposal, which has been delayed a week or so for thorough review.

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

Advanced LIGO and Outreach Proposals.

Change Request CR-030002 to adjust the FY 2003 operating budgets to reflect actual staffing during the first quarter has been prepared.  Additional information is required.

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

• Various personnel/payroll /HR related work.

Quality/Safety (Tyler)

No report this week.

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

Summary of Commissioning Activities at LIGO Hanford Observatory (compiled by M. Landry)
---------------------------------------------------------------------------------------
2K IFO (H2)
-----------

Compensation and stopband filters on the 2k MICH loop were brought in line with that of
the 4k, improving the displacement noise.  Good spectra rivaling the 4k are obtainable but noise levels
(particularly in the acoustic-peaked range 90Hz-few hundred Hz) are nonstationary.

A shot noise calibration was performed on the AS PD #2:
http://blue.ligo-wa.caltech.edu/ilog/pub/ilog.cgi?group=detector&date_to_view=02/04/2003&anchor_to_scroll_to=2003:02:04:18:29:54-daniel
 

4K IFO (H1)
-----------

WFS work continues; currently the all WFS loops with the exception of 2B can be closed,
controlling eight of ten d.o.f, with resultant benefits to arm and spob powers.  While
the setup to close the loops is somewhat tricky and not yet fully automated, once closed
they appear stable, running for hours without a hitch.  See the elog
http://blue.ligo-wa.caltech.edu/ilog/pub/ilog.cgi?group=detector&date_to_view=02/04/2003&anchor_to_scroll_to=2003:02:04:03:21:35-luca  Later efforts included more scripted
acquisition:
http://blue.ligo-wa.caltech.edu/ilog/pub/ilog.cgi?group=detector&date_to_view=02/06/2003&anchor_to_scroll_to=2003:02:06:18:03:09-luca

DAQ
---

New ASC code was loaded on the 2k, which appears stable.

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

Interferometer: Joe Kovalik measured the bandwidth of a re-glued PMC to be 1.40+/- 0.03 MHz.
Valera, Andri, and Gaby worked on diagonalization of mirror actuation.
 
LDAS admin:
1) Sent 35 tapes with LHO's RDS to LHO;
2) Sent E9 tapes to Caltech
LDAS data analysis:
1) Fixing bugs in waveburst DSO in preparation for S2.
(Igor)

CDS:
1) Released the beta version of the diagnostic software smt.pl for testing.
2) A script is being written that automates the tidal servo operation. It
generates the tidal data file periodically as a cron job.
3) Setting up a testing environment in our lab area.
-Ash

Gathering together cad files and updating an as built directory of PDFs
from Parsons, PSI, CBI and John Desmond. Looking into electro-mechanical
actuators to replace the pneumatic actuator on the 80K fill valves. (Jonathan)

Modelling: We started to construct e2e boxes for small IO optics. Since the floor
motion box for LLO has not been completed, the first version of IO e2e box
will take inputs to the suspension point. The local damping gain setting
does not seem to work properly, for some unknown reason. We will look into
this problem with help by Hiro Yamamoto. (Sany)
 

GC:
I have been troubleshooting network problems with LSU for the last week. I think that things may have staightened out now, but there is still a bit of packet loss. This could be due to ICMP filtering at LSU so I am looking for some other means of testing for lost packets. Worked with American Electronics today to come up with a plan for the new conference room. Also working with them to make some changes to the A/V equipment in the auditorium. I will have to reinstall linux on one of the workstations here. The disk space is just about used up in hte current partition scheme. In order to change this, I need to reinstall. Had a request to store a lot of data on the web server for "as built" drawings. I will probably have to add some disk space to alix due to that.

LDAS:
Still working on benchmarking the evaluation units. I have a few more things to test before I am satisfied.
-Shannon

Detector/Technical Support (Coyne)

no report

40 Meter Interferometer (Weinstein)

• Suspended mass mode cleaner (Ugolini, Miyakawa, Vass, Abbott):
• Osamu has prepared a set of transparencies summarizing his studies of PSL / MC frequency noise, which he will present at next Monday's commissioning telecon.
• Osamu has compared his OLTF measurment of the MCL and MCF loops with the detailed model by Rana. He finds beautiful agreement iff an additional 4.5 msec phase delay is present in the MCL path. This is presumably due to the ADC (currently an ISC110B) and SOS dewhitener; at the sites, they use a Pentek and universal dewhitener.
• Ben is arranging to replace the ISC110B and SOS dewhitener with a Pentek and universal dewhitener. Ben is testing a required Pentek Generic Input Module. This will go into the DSC rack to make use of the unused Pentek ADC channels there. When we have a MC ASC crate (with penteks, Pentium, and reflective memory), we'll move the MCL Generic Input Module to the MC rack.
• Ben has calculated the required filtering on the MC2 universal dewhite boards, but will instead wait for Jay to hear from Russ or Rana to tell us the exact component values that they used instead of just the transfer function, so that the 40m boards are site compatible. (We will use rev B5 for the core optics, but Jay thinks there's a "rev B3+" for MC2).
• Osamu measured the contribution to the frequency noise due to the coil drivers. This is negligible compared to frequency noise, but will become important for the main IFO asymmetric port noise (assuming frequency noise is rejected to 1% at the asymmetric port).
• Core digital suspension controllers (DSC), and other Electronics (B. Abbott, Taylor):
• All of the DSC's for the BS, PRM, SRM, ITMx and ITMy are complete and fully tested.
• Ben has identified some ~ $90K in additional electronics purchases need to complete the end racks (Pentiums, Penteks, ISC110B's, and custom modules; for ETMx and ETMy DSC, and transmitted port sensing). He and Jay will begin purchasing this equipment.
• Jay is drawing up a LIGO-I-like LSC system for the 40m dual-recycled IFO, and estimates that it will require ~ $100K in additional electronics.
• We will hold off on the design of the WFS-based ASC system, for two reasons: it will be expensive and not essential at the beginning (we can use the oplevs, as at the sites), and new techniques for WFS at 200 MHz must be developed. However, Jay will leave room in the racks for an ASC system!
• Ben has acquired a PZT driver and ordered a Kepco 100v PS to complete the MC alignment control system sensing and actuation system. Ben wrote a test procedure for the PZT driver, and has tested and installed it at the 40m. We also need the VME system and software, and Jay reports that Lori is nearly ready with it.
• Our new and much-needed SR785 signal analyzer is not working correctly, and we are communicating with the manufacturer on how to fix it.
• PSL and ISS (O. Miyakawa, B. Abbott, R. Abbott, F. Nocera, D. Ugolini, S. Vass):
• Flavio has demonstrated better than -140 dB relative intensity noise between 80-2000 Hz (see plot) but there clearly are large contributions from acoustic noise on the PSL table, especially the HEPA filters. (Osamu sees the same thing). The target is -160 dB.
• Ben is working on a repackaging of the ISS PD to mount it on a rigid block, making it less sensitive to acoustic noise.
• After discussions with Stan, Rich believes that the excess noise is due to slew-rate limitation at high frequency (a time delay) causing a saturation at low frequency. One remedy being explored is to replace the amplifier in the laser current shunt (the actuator) with a faster one.
• We have observed poor transmission through the PSL PMC, but Dennis suspects its due to mode-hopping of the laser. He observes large changes in laser power when the PSL FSS lock is re-acquired without first zeroing the slow loop slider. If lock is lost and re-acquired with a large slow loop slider value, the NPRO mode-hops. Everyone promised to follow the standard procedure of zeroing the slow loop slider before beginning to re-acquire lock. Meanwhile, Osamu and Alex Ourjoumtsev will re-measure the PMC transmission.
• Alex Ourjoumtsev re-aligned the FSS reference cavity (FRC), and also the cameras and photodiodes looking at both the reflected and transmitted beams. He found that the FRC transmitted beam was almost completely off the monitoring PD, and fixed it.
• Optical sensing (Smith):
• Osamu and Alex Ourjoumtsev have begun to assemble the main IFO sensing optics. They laid down most of the optics for the AP1 beamline, and made a list of missing parts. They will continue, with help from Lisa Goggin, with the SP, POB, POY, TRx, and TRy beams.
• Alex is writing code and a nice GUI for calculating the beam size and Guoy phase for all beamlines in the main IFO.
• OPTICS PARTS LIST, Orders pending: Input mode-matching telescope off-axis parabolic mirrors are expected end of Feb. from SORL; drive electronics to drive the x and y axes of the 2nd PZT vacuum IFO steering mirror are pending from Piezo-Jena.
• IFO MODE-MATCHING TELESCOPE: All the MMT parts for the alternate (spherical mirrors) telescope are in house and are in process of being checked and assembled before cleaning and baking.
• FARADAY ISOLATOR: The reworked Faraday isolator parts are being cleaned and baked.
• OPTICAL LEVER ASSY Several parts of the optical lever focus lens assembly are being reworked to enable electrical isolation of the QPD from the table mounting base. The lenses were assembled into the lens tube.
• Optics (Billingsley, Armandula), suspensions (Romie), OSEMs (Bob):
• Our BS, ITMx, and ITMy, are suspended and sitting on the South Annex clean room flow bench. They have clean OSEMs, are balanced and have been damped successfully, and are ready for installation as soon as we are.
• Bob has the ETM suspension parts (MOS), and one of the two RM suspension parts (SOS), cleaned and baked. The other is still being used by Janeen. Bob is meeting with Janeen to go over all the parts, and begin assembly in preparation for suspending the remaining core optics.
• Bob has 24 OSEMs for the remaining core optics suspensions assembled, tested, cleaned and baking; they get RGA scanned on Monday.
• Facilities and vacuum envelope (Ugolini, Vass, Jones):
• Dennis continues to work on a procedures manual for all 40m systems and components.
• The fence enclosing the storage area south of the South Annex has been torn down to allow for the installation of two large storage containers on Monday (one for the 40m and one for CDS).
• Dennis noticed an anomalous loss of N2 (used for vacuum valve pneumatics) during a switchover from one bottle to another, for unknown reasons. He has searched for, but found, no leak. He's seen no further evidence of anomalous loss.
• A UPS was installed in the vacuum controls rack. Ever since then, the CC1 gauge controller has been acting funny, showing a much larger, and fluctuating, total pressure. Steve is back from vacation next week and will investigate.
• Camera mounts and illuminators for viewports are still being worked at CES; expect them in 1-2 weeks.
South Annex Bake Ovens (Taylor, Cardenas): Bob is cleaning and baking in-vacuum mirrors for camera views.

Thermal Noise Interferometer (Libbrecht)

no report

LASTI (Zucker)

no report

Data Analysis and Computing (Lazzarini)

Simulation and Modeling (Bhawal)
SimLIGO
--------
(Matt) Worked to increase robustness of SimLIGO locking, add useful
 diagnostic and demonstration scripts, and produce up-to-date noise curves.
 

Mode mismatch
---------------
(Biplab) Melody (with modal order 4) and E2E (same number of modes)
 models for 4km IFO matched well with each other for both carrier and
 sideband lights - which probably says that the difference between FFT
 and E2E may not be due to some E2E bug and may be more related to the
 limitation of the number of modes in e2e. On the way .. the convention
 for Melody's mirror displacements was sorted out after discuusing with
 Ray Beausoleil.
 

WFS signals
---------------
(Biplab, Matt, Hiro) After checking sideband power at different ports,
 we found one parameter that was not quoted correctly in the '98 alignment
 paper by Fritschel et al, the Schnupp asymetry length of the recycling
 cavity: it was factor of 2 off. After taking that into account, E2E
 signals match better with the results in the paper but the guoy angles
 are still off from the quoted values.
 

New Code development
-----------------------
(Matt) Continued work testing new optics components.
 

Alfi
-----
(Bruce)
        - Option and previous session windows are now saved to be reloaded
          in the next session.
        - Option files are now working for both command line start and
          WebStart usage.
 

(Melody)
        - Worked on optimizing the modeler's FUNC_xxx modules.
        - Worked on some PRs in alfi5.
 

LIGO Data Analysis System
 

Software Systems (Blackburn)
This week we have continued to find and fix bugs in the LDAS software
in preparation for the scheduled (and agreed upon) release date of next
Tuesday. One set of fixes to the diskcacheAPI and frameAPI introduced
a new failure mode in the createRDS command used to produce the reduced
data sets. This has now been fixed.
 

On Monday of this week, a pre-release version of LDAS, along with LAL
and LALwrapper were pushed to the sites for testing against E9 data and
the current search codes.
 

Over the weekend, we saw long term testing results with about a 0.05%
failure rate - roughly two orders of magnitude better than seen in E9.
This was futher improved with last nights testing to a single failure
out of 10,500 jobs (0.01% failure rate). We were also able to insert
and read back out one million rows per day in the database during this
weekend run.
 

We still have a significant amount of testing of other LDAS functionality
before we are ready to release. We hope to get a handle on all the needed
testing by the end of the week.
 

Testing of the use of calibration data has identified several issues. All
issues have been resolved. We await more complete testing of calibration
which includes the new search codes being developed by the LSC. The plan
is for the LSC to conduct these tests this weekend.
 

We continue so see unusual failure modes on the standalone boxes that
do not occur on the full hardware platforms. This may be to Linux or it
may be an issue with the load on these standalone boxes which are running
all of LDAS and the database, webserver, etc. on one box.
 

There was a new release of LAM which we are currently testing. It looks
very promising and may be a contributor to the improved performane and
reliability of last night's test run.
 

A decision to test an LDCG version of SSH for solaris was made and is
being tested on the LDAS development system. This may fix some of the
issues with API and SSH processes not completely being killed by the
operators. More testing is necessary before moving to this version.
 

Hardware Systems (Anderson)
Caltech
-------
(Dan Kozak)
 

* Worked with Qlogic/Sun to get beta 2Gb FC switch working.  It's been
  working this between ldas-archive, T3s and 9940As but not working with
  saiph (1Gb HBA/Solaris 8).
 

* Archived all E9 data to SAM-QFS (dual copies on tape, all files have
  been written to tape).
 

* Received batch of 9940 tapes (420 cartridges) and started labeling them
  and importing them into the silo.
 

* With Larry Wallace's help, got our 9940A tape drives under maintenance again.
 

(Al Wilson)
 

* Building a new datacache IDE Raid with 16 200GB drives. Got the drives
  installed and striped as two 1.4 TB file systems. Installing RH7.3 on
  it today.
 

* Minor tweaks to BigBrother. Removed all connective ping test to remote
  sites.  And have set up LHO so the local sysadmin. Get mail on the local
  mail server. Still need LLO and MIT address.
 

(Stuart Anderson)
 

* Finished reading all LHO and LLO E9 tapes and copying them to SAM-QFS
  at Caltech for archiving and the IDE-RAID systems for quick random access.
 

* Mirrored 1hr of triple coincident E9 data to all LDAS systems for
  software testing and validation prior to S2.
 

* Continuing to gather/negotiate quotes for LDAS archive hardware and
  software licenses.
 

Livingston
----------
(Igor Yakushin)
 

* Sent 35 tapes with LHO's RDS to LHO.
 

* Sent E9 tapes to Caltech.
 

(Shannon Roddy)
 

* Still working on benchmarking the evaluation units.  I have a few more
  things to test before I am satisfied.
 

Hanford
-------
(Greg Mendell)
 

* Preparing the tapecontrol script for S2.  Igor and I will begin
  archiving data Mon Feb 10, to get the injections.  The script will be
  configured to get data between 6 pm CST and 6 am CST (-/+ a some) every
  evening, starting with Mon Feb 10, to get the raw frames with injection
  data.  During the run, it will archive all the data 24/7, of course.
  After then run it will return to just archiving data during the evenings
  until post-S2 injections are finished.  All the data will be sent to
  Caltech as usual.
 

* Updating the rds loop script that ran during E9 to run during S2.
  RDS data will be kept on disk at the sites.  (Note that raw data is
  overwritten after ~12 days at LHO and ~9 days at LLO.)
 

Data Analysis Activities (Lazzarini)
Weinstein:
- Set up, and ran, three burst searches (power, tfclusters, slope)
  ONLINE during E9, and maintained a web page summarizing the results:
  http://lancelot.mit.edu/~ajw/burstdsos.html
- Attended the joint burst/inspiral workshop on vetos at LSU,
  and made numerous constructive comments which were ignored
  (as well as some that people actually listened to).
- Began to look at the results of the burst hardware injections
  done on Saturday night during E9.
- Made recommendations (in a memo) for future hardware injections.
- Finalized a note by me and Laura Cadonati on burst efficiency
  evaluation for S1.
- Working on moving burst online running into the dsorun format.
 

Shawhan:
* With Stefan Ballmer's help, figured out how to run glitchMon to generate veto
triggers to be used in the S1 inspiral upper limit analysis, in place of the
veto triggers we had been using, which were generated using the inspiral search
code.
 

* Updated the inspiral upper limit paper draft, and the internal report, to
reflect the new glitchMon-based veto condition.
 

* Working on planning and software for hardware signal injection during S2.
 

Yakushin:
 Fixing bugs in waveburst DSO in preparation for S2.
 

Mendell:
Added options to the knownpulsardemod DSO to high pass filter and window
data before generating SFTs, and to output calibrated SFTS.  Currently I
am updating the knownpulsardemod.loop.tcl driver script that ran during
E9 to generate SFTs during S2. The script is monitored from the LDAS LHO
Search Summary web page. Before S2 the script needs to be updated to get
calibration data under the S2 plan, and to detect clean locked science
mode stretches in real time.
 

Last week --The main activity of the last week was to run the
knownpulsardemod.loop.tcl driver script during E9 to generate SFTs. The
script was monitored from the LDAS LHO Search Summary web page. It was
shown that the script correctly handled keeping pace with the data.  It
was also shown that the SFTs jobs could run in parallel with the other
jobs on a loaded LDAS system. Before S2 the script needs to be updated
to handle calibration data and to detect clean locked science mode
stretches in real time.
 

General Computing (Wallace)
MIT:
(Keith)
-Assisting in document conversion. There are some issues with going from XP to
WIN2K.
-Working with the MIT networking people to solve some performance issues.
-Received the MATLAB licenses and have them installed.
 

Livingston:
(Shannon)
-Troubleshooting network problems with LSU for the last week.
I think that things may have straightened out now, but there is still a
bit of packet loss.  This could be due to ICMP filtering at LSU so I am looking
for some other means of testing for lost packets.
-Worked with American Electronics today to come up with a plan for the
new conference room.  Also working with them to make some changes to the
A/V equipment in the auditorium.
-I will have to reinstall linux on one of the workstations here.  The
disk space is just about used up in the current partition scheme.  In
order to change this, I need to reinstall.
-Had a request to store a lot of data on the web server for "as built"
drawings.  I will probably have to add some disk space to alix due to that.
 

Hanford:
(Christine)
- Hand carried the Computer Use Policy around to people who had not
signed off on it.  Answered questions and dealt with requests for
exceptions to the policy.
- Set up some PC files to be viewed from a UNIX computer as part of a
property audit.
- Rescued a PC used for building environmental controls.  The hard drive
is going south.  I have it working temporarily until I can replace it
with another computer and reinstall the environmental controls
software.
- Downloaded and investigated installation of SSL for IMAP.
- Searched for a vendor that sells supplies for one of the color
printers.  Found the toner cartridges easily, but not the fuser and drum
kits.
- Installed the scsi card into the LDAS/CDS emergency tape backup
computer and got the tape robot working on the computer.  Set the
computer up as an nis+ client on the GC network.  This computer will be
on the GC network most of the time and will only be put on the CDS
network when needed for emergency frame backup if LDAS crashes.
- The usual user support for e-mail problems, computer crashes, hardware
failures, user account problems, etc.
 

(Larry)
-Working on the procurement for the new router to provide GbE connection from LIGO Laboratory to Caltech/ITS.
It has been approved and getting  some minor changed made on the original quote. There has been a rush put on it.
 

CIT:
(Mike)
-This week I was real busy with onsite/phone user support that included
mostly networking issues, this was due to two network switches going down.
-Ran a few cable drops, here in Bridge Annex for our new
copier/scanner/printer.
-Working on loading two laptops that well be used to the loaner pool.
-Updating our users computers with current service packs to
insure that they are updated with current OS security patches. This will help
prevent virus attacks and make it more difficult for hackers to break in.
-Started loading a backup server for Pictor, to be safe until our
replacement server shows up.
I had a lot of users that were having problems mapping their previous
mapped drives. I ended up having to reboot all servers, which seem to
correct most of these issues with mapped drives to our NTSRV's.
 

(Lisa)
- I was on vacation last week.
- Helped Larry out as much as I could with the network problems on Monday.
Checked out all of the workstations the next day.
- Looking into wireless problems with the 3d floor access point.
Working on
wireless problems with some new dell laptops.
- Backed up home6.
 

(Veronica)
- LIGO website: updated roster database. Working with the Digital Media
Center on processing LIGO VHS tapes; DMS suggests to do it in small
batches, the 1st batch has been shipped off for processing. Updated
document listings on the Internal Bulletin Board. Posted various updates
to several webpages.
- LSC website: started working on a webpage for the upcoming LSC meeting.
Posted updates to the 'talks to be presented' page.
- CaJAGWR: Updated the website. Recorded the video of the last seminar,
and am compressing it in preparation for posting. Processed the video from
the previous talk; will post it as soon as it passes JPL clearance.
Expereimenting with the smil combos of video and slides. This can also be
useful for LIGO seminars.
 

(Larry)
-Worked a number of procurements. Mostly, software and licensing purchases. The
Matlab licensing needs to be sorted out, we've not received what has been
promised.
-Generated a list of those that have signed off on the GC Policy. A list of
those that still need to sign off is being created.
-The major item for the week was the CIT LIGO LAN going down. The edge switch
that connects the network to the outside world just went down with a hardware
problem and is being replaced. The core switch for the LAN had a problem with
the backplane, the system is up and running but this unit, too, will be replaced.
The last item that went down was a GigE card to one of the main servers, it has
been replaced with a fastethernet card.
Thanks to Lisa and Mike things were not down as long as they could have been.
Having extra hands and eyes made a big difference in getting things back
on-line.
-The regular items of setting up accounts and adding more sites to be filtered
out of the mail server is being done continually.
The RAV s/w demo license has expired and presently waiting for the permanent
license to arrive. Most of the users had positive comments about this package.
Livingston has been using it successfully for some time. However, everyone still
needs to keep up their virus-scan s/w.
 

LIGO II/Advanced R&D (Sanders)

From: Phil Willems <willems@ligo.caltech.edu>

Sapphire Q:
-----------

We have received the two prototype sapphire test masses in our lab.  These are
the ones that have chips in them at their edge, one apiece.

For one sapphire the chip may be the least of our problems.  The whole thing is
visibly pink, and much of the outer third contains numerous inclusions, a few
the size of grains of rice.  Also, the circumference has a very poor polish.

The second sapphire is much, much better, although it has the larger chip and
slightly worse barrel polish.  The interior is clean and clear.  Repolishing
could make this sapphire pristine.  We will test this one first.

We have the Q-measurement rig for these masses set up in our vacuum and are
making adjustments. (Phil Willems, Dan Busby)
 

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

AdLIGO Suspensions
I've missed two days to illness this week so please review Calum Torrie's and Mark Barton's reports for status.
Working with Bob Taylor on the HAM table spacers that came in from MIT for cleaning and baking. One spacer was damaged in shipment. Bob brought them all over to the machine shop for machining. He'll clean and bake them after machining.
 

From: ctorrie <ctorrie@ligo.caltech.edu>

Mode Cleaner Assembly

Janeen and I are working on the various assemblies associated with the MC suspension with a view to create a full set of drawings, parts and assemblies that can be sent out to vendors.

Helena and I have re-assembled the coils for the Caltech MC and are waiting on some silver plated bolts before we re-install these on the table cloth.

Recycling Mirror Suspension

Russell Jones and I have been working on the coil and the associated parts for this suspension. We hope to start the manufacturing process for these next week.

Norna Robertson et. al met to discuss the RM pendulum parameters again this week. A final set should be ready for the 14th of February.
 

From: "Mark Barton" <mbarton@ligo.caltech.edu>

    This week I did some calculations and experiments to check the
plausibility of Janeen's SolidWorks/Algor model of the Advanced LIGO MC
suspension structure. In particular I measured the stiffness and resonant
frequencies of a sample of the aluminium tube stock used in the
prototype. It turns out that under certain circumstances that seem to
have to do with the units in effect when the model is exported from
SolidWorks, the mode frequencies can be wrong by a factor of about 3.

    I also worked with Paul Russell and Jay Heefner to get the various
electronic modules for the MC prototype (GEO-supplied sensor/actuator
board, CDS-supplied anti-aliasing and whitening/dewhitening filters,
dSpace controller) integrated.
 

From: Jay Heefner <jay@ligo.caltech.edu>

Advanced LIGO Suspension
==========================
- Began checkout of electronics and rack components for advanced LIGO suspension prototype. Checkout should be complete by 2/6.

Advanced LIGO DAC
==========================
- Held a telecon with Frequency Devices. In this telecon we discussed progress to date and some of the problems that they are having with the prototype. By this Friday they hope to be runnig clean sine waves out of the module. Noise testing should be started next week. As of last Friday they plan to ship the prototype on or before 2/21. We will have another status update telecon this Friday.
 

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