Weekly Report for Week Ending November 7, 2002

The LIGO Executive Committee Agenda for Monday  November 11, 2002 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

Executive Committee only 11:30 - noon   Topics:
 

Special Items:

Special Announcements:

Weekly Report Highlights
 

LSC Issues (Weiss)

no report

LIGO I Construction/LIGO Laboratory Administration (Lindquist)

LIGO Operations--Administration

There was no site teleconference held on Thursday, November 7, 2002.

The list of current actions revised to reflect the status of open actions assigned through October 31, 2002 may be found at ACTION LIST.

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

• Working extensively with PriceWaterhouse-Cooper to fulfill the annual property audit requirement, awaiting photograph of the selected property from LLO.

>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

• Continued to make strides in organizing and processing the multitude of document piles inherited by staff members over the past many months.
• Rearranged furniture and equipment in my office as the boxes of documentation continued to disappear.  There is now a clear path from the door to my desk.
• Studied options for repairing or replacing the large MITA 6090.  Spoke with the FKM Service supervisor about the difficulty in obtaining necessary parts for repair of a machine nearly nine years old.  The prognosis for repair isn't encouraging.  Prepared a proposal for the acquisition of a new digital copier printer scanner by MITA that would replicate the current functions as well as enhance our movement into an integrated electronic environment.
• Began preparation of the charge backs into Barry's account for copy pages in the past fiscal year.  These should be tabulated and sent to Donna by early next week.
• Began to prepare for short presentation next week to the administrative staff coming here from the sites for training.
• Worked with Larry Jones in processing the 400+ drawings received from HPD.  It was decided that since the drawings were for a prototype and would not be revised, all would be grouped under one DCC number, and the individual drawings numbered and identified as page 1 of 100, etc.  All the numbering has been completed on the hard copies, and a CD was burned of the complete file of electronic drawings.
• The new open stack files installed in the sub-basement were anchored and readied for files.  The 1996 "D" documents (and earlier if there's room) will be relocated to the new cabinets in the next week.
• 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

• Stacks of historical documentation continue to be organized and filed into the DCC shelves.
• Rearranged some furniture/equipment in the DCC.
• Processed and distributed 6 invoices.

 


For Week Ending  11/07/02	Packages	Faxes
In	29	33
Out	10	15

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

Press here for ACCOUNTS PAYABLE HISTORY DATA .

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

• Completed the change order to Raytheon and able to resolve the bulk of the discrepancy on the JPL work transfer.  Completed change order #2 to Reliable Office Products, change order #9 to University of Oregon and change order #1 to Landscape Horizons which adds funds for the tumbleweed removal.
• Completed the internal modification to Pacific Bell.  The internal modification for Goodrich has problems in Oracle and it looks like the file has  been corrupted.  ATC and Oracle are working on trying to approve the Goodrich internal modification in Oracle.
• Working on various change orders and internal modifications necessary as payments are pending.

• Completed and posted the monthly financial reports for October on the network.  The Operations report includes a summary of total amount spent for Operations and R&D activities for fiscal year ended September 30, 2002.

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

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

• Galli&Morelli: Change Order No. 17, adding funds to cover invoices for completed effort and on-going work, was released to Purchasing.
• Univ. of Florida: Change Order No. 13, de-obligating residual IO construction funds, and re-allocating the reminder of funding to appropriate FY'03 accounts, was released to Purchasing.
• SEI Prototypes for LASTI/Solicitation: The procurement has been delayed pending completion of testing at Stanford..

• Ed Jasnow will spend the week of November 18 at Livingston to close out the contract with Brunt Construction for the Staging Building.  The major remaining items are the auditorium stage floor and the HVAC, along with some minor punch list items.
• The tumbleweed removal effort at Hanford will be added to the contract with Landscape Horizons.  This is a result of Yakama Industries going out of business.

• Both sites are in the process of receiving quotations to install remote traffic gates along their respective access roads.

SUPPORT (Baldon, Torres, Lloyd, Tischler)

>Irene Baldon

• Processed the paper work for six (6) new/revised trips and there are seven (7) trips which are in various stages of completion before ticketing can be done and paper work completed.
• Completed eleven (11) Expense Reports and there are three (3) 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).  Travel Audit has gotten tighter with outstanding trips since the new fiscal year (October 1st).
• Reconciled twenty-seven (27) 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.
• Worked on the preparation and distribution of the Travel/Vacation Itinerary for November 4, 2002.  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 and tracked and followed up on invoice problems. For the total number of incoming invoices received for this period see "Cost Schedule Control Systems" report by Esther Cunningham. Reviewed and recorded payments processed by Esther for the week of October 28.
• Processed the usual requisitions and change orders on-line.
• Continue to monitor contract and blanket order encumbrance and notify task managers when supplements are needed.
• Worked on updating the PO Log Books.
• Jim continues with data entry in the LIGO database and helping out in the DCC.

• Scanned documents from: IUCCA (India), Carleton College, and Univ. of Tokyo.  Submitted these to the DCC for eventual posting on the web.
• Formatted additional reports from Northwestern, and posted these on the small web page for review.
• Did minor updates to the LSC database, corrected name spellings.
• Notified V. Kondrashov of LSC documents available for posting on the web.
• Helped to prepare a summary of organizations participating in LIGO 1, included names of their PIs.
• Made a few Pcard purchases, then chased paper work to reconcile others.  Spent some time collecting quotes for purchases under S. Whitcomb, and also one for Wilson House.
• Changes to LIGO roster this week: Coordinates for Luca Matone who now resides at LHO, and added Michael Lloyd, visitor to CIT.

• Collected scans of selected LIGO/SURF pictures.
• The Site Admin meeting is scheduled for next week at Caltech.  Have been addressing details w/E.Jasnow and collecting  powerpoints for presentations.
• Meeting w/Margi Denton, L.Turner, V.Kondrashov re: press kit design details..

Advanced LIGO (Frey)

Progress Period from 11.01 to 11.07

Accomplishments:

Weekly Advanced LIGO Project Controls meeting was not held this week.

Advanced LIGO MRE Proposal (Highest Priority)

• Finished preparing comments and questions to discuss with Phil.
• Continuing the development of the Cost Estimate.
• The following is a summary of status by sub system:
• COC - Work on action items per second review continues.  Garilynn continues to execute action items.
• PSL -  Management to secure commitment from LZH for laser development.  R&D review decided that a concurrent bench effort at CIT will not fit into the budget.  Next meeting date has not been scheduled.
• AOS - Work on action items continues.  Next meeting date has not been scheduled.
• IO -  Work on action items continues.  Next meeting date has not been scheduled.
• SUS - Working with Janeen doing updates and action items.
• Updated the plan with progress as of 11.01.02 and  posted to site.
• Sent out update data requests for progress as of 11.15.02.
• SEI - Work on action items continues.  Next meeting date has not been scheduled.
• ISC - Mike continues to work on the WBS dictionary.  No comments as of 11.07.02 on the draft detailed schedule and no WBS dictionary.
• LDAS - No data / feedback from Albert to date.
• INSTALL - Continue prepping cost data for import into cost book.  No comments as of 11.07.02.
• All other subsystems have yet to be scheduled for their first review.  These dates are pending per direction from Gary Sanders and Dennis Coyne.

• Updated the plan with progress as of 11.01.02 and  posted to site.
• Sent out update data requests for progress as of 11.15.02.

• Updated the plan with progress as of 11.01.02 and  posted to site.
• Sent out update data requests for progress as of 11.15.02.

• Updated the plan with progress as of 11.01.02 and  posted to site.
• Sent out update data requests for progress as of 11.15.02.

• ROSTER DATABASE:
• Started to run tests to confirm that the hot fix has corrected the issue.
• Working with Larry and Barbara to set up a process by which the roster database updates selected alias lists.

• COST BOOK DATABASE:
• Continue to verbally communicate the username and password to users.
• Will be working with BK to correct similar technical issues as roster database.

Continue to prepare for my attendance at the Project Science Workshop.
See http://131.215.125.172/workshop2/information.html for workshop details.
Continue to prepare PowerPoint slides for review by Gary and Richard.

Tested project being shipped to VA, to confirm compatibility.

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

Nothing to report.

There are currently no open change requests to be considered by the LIGO Chnage Control Board.

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

• Various personnel/payroll /HR related work.

Quality/Safety (Tyler)

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

Summary of Commissioning Activities at LIGO Hanford Observatory (compiled by M. Landry)
---------------------------------------------------------------------------------------
The Central Alaskan earthquake of Nov 3 (M7.9, 22:12:41UTC, triggering 3/4 of our optics'
watchdogs) appears to have not caused any major problems at LHO.  The 4k has resumed full
locking since that time, along with single-arm and PRM locks in the 2k.

Greg Mendell has moved LDAS from the staging building to its permanent residence in the
new LHO building.

2K IFO (H2)
-----------

MC WFS stability was restored by ad hoc tweaking of the (previously dependable) ASC output
matrix.  Additionally, MCn damping loops were adjusted.  We might not be out of the mode
cleaner woods yet; MC_F remains a factor of 2 worse at frequencies above 30Hz, compared to
reference spectra.

B. Kells is continuing visibility measurements using single arm locks.
 

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

Decided to pursue in parallel the re-establishing of full lock, with investigations of
the ellipticity of the beam emanating from HAM4, noted last week.  A camera is being mounted
on the periscope to monitor the latter.  Cleanup work on ISCT4 gave way to full locking
late this week.

The IFR frequency synthesizers which govern the 4k modulation frequencies have been
synched to an SRS rubidium frequency standard.  The rubidium unit outputs 10MHz and shows
11 digit accuracy when measured with a time interval counter over 1s.

A noise budget for H1 can be found elogged at http://blue.ligo-wa.caltech.edu/ilog/pub/ilog.cgi?group=detector&date_to_view=11/01/2002&anchor_to_scroll_to=2002:11:01:19:30:05-peterF
 

Misc commissioning (Matone):

Notched out 60Hz in the MC2 path in the Mode Cleaner, reducing the line
amplitude by a factor of 4. No impact on the RMS was observed.

Built a template file for the operators to use in order to monitor
one arm frequency noise.
 

DAQ
---

EDCU upgrade, EDCU on-a-Sun machine.  Alaskan quake trends saved to LDAS T3 system.
 

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

WFS testing: finished the electronics testing, closed one of the WFS2 feedback loops(the I phase) with power recycled Michelson to control the RM. Released beta version of configuration tool to store/restore ifo channels. Will try to integrate this new gui into the system. (Andri, Valera)
 

CDS Software:
a) Downloaded and installed EPICS version 3.14. Preparing myself for the upcoming seminar on EPICS. One big advantage of using 3.14 is that it supports sun solaris as IOC host. With EPICS IOC installed on sun we can eliminate all the vxWorks controllers sitting in the Master storage room.
b) Fixed the bug in the l1iool1 controller with the help of Chathen, that the ADC 3113 is now being initialized properly. The controller stopped scanning channel values after acquiring only one data.
c) Work in progress on fixing last minute problems on Tidal Servo
(Ash Khan)
 

LDAS admin:
1) Helped Erik in Keith's absence to diagnose and fix problem with MIT's
LDAS: somebody turned LDAS debugging flag on that caused huge extra
output generated for each job.
2) Submitted 'Global use of LDAS metadatabase across LIGO and LSC sites'
technical note (LIGO-T020169-00-R) to DCC.
3) Together with Chethan fixed the problem with mounting minute-trend
data from fb0.
4) Mounted E7 and S1GEO data.
LDAS data analysis:
1) Continue working on Wave DSO.
(Igor)
 

GC
* Successfully evaluated and installed an anti virus solution
for our mail server. The product is very easy to install and
configure and it integrates well with our existing mail server
configuration. The product has anti SPAM features also.
* The above mentioned anti virus software has been stopping an
average of 4 viruses a day at our mail server in the first
three days of being installed.
* requested a quote on the fibers to install our new switches.
* Received the new switches from Foundry and started configuring
them.
* performed some maintenance on the mail aliases.
* researching upgrade options for Marcel.
* made a couple changes to the firewall configuration at LLO.
* Looking into another VPN software solution I learned about
yesterday. It looks interesting and may provide some
solutions for Livingston.
(Shannon)
 

HEPI / LASTI
Hydro-tested Hyspan's un-annealed bellows last weekend. We brought the pressure to 150psi, stopping and venting the system every 10 psi. Within our ability to measure these rolled structures it behave elastically and always returned to its relaxed state. We were limited to 150psi by a hand pump so ordered a higher pressure replacement. On Monday with the new pump the bellows yielded rather suddenly at 210psi. When it did, the pressure went down into the low 100s. Additional pumping just continued to swell and yield it more with the pressure going up to about ~150 and then back down to the low 100s. We didn't continue much past that point so as not to destroy any evidence on how it failed. It looks like the valley of the convolution yielded in tension. It seems to have started from the middle. This is the first time the bellows have been stressed to failure, which we find is about ~3x the system's operating pressure. Good news. Ameriflex, the manufacturer of the replacement bellows is still on schedule to ship this week. We are ready to assemble 2 this weekend, which looks good to get them to MIT next week. The last 2 springs have been received from the shop, characterized at LLO and delivered to MIT. L4C mounts are in the shop and should be finished by Nov 15. (Hammond,Kern)
 

ETF / Advanced LIGO pod bases
Completed the design of a simplified GS-13 mount and sent to Joe Giaime for review, production in the LSU Physics shop. (Hammond,Kern)
 

Optics / Laser
Worked with Rai, Gary and Harry to locate and setup a test fixture to measured the wavefront distortion introduced by our large metal/glass seal viewports. This is to determine if they would be suitable to replace the small COS viewports at the symmetric, and AS ports. (Kern)
 

Detector/Technical Support (Coyne)

40 Meter Interferometer (Weinstein)

• Core IFO:
• We are working towards constructing a short-arm Michelson with our three newly suspended optics (BS, ITMx, ITMy).
• We should have complete suspension controllers for those optics in the next couple of weeks, and aim to have them installed into the vacuum chambers, and damped, by the end of this month.
• We won't have final versions of three key elements of the input optics (from the suspended mass mode cleaner into the core IFO) for another couple of months: Faraday isolator, MMT, and steering mirrors. Without a finished Faraday isolator, we are investigating various ways to bring out the bright port signal for locking the Michelson.
• We also won't have final versions of the optical lever telescopes, so we will assemble temporary versions. We are working towards having cameras looking at all the suspended optics.
• And, we won't have length or aligment control systems. We will rig something up with SR560's to control the Michelson.
• Suspended mass mode cleaner (Ugolini, Miyakawa, Vass, Abbott):
• ISS work at the PSL has meant that the MC has not been maintained in lock for most of this week.
• Osamu and Steve continue to study effect of seismic and acoustic noise (at MC2) on the MC lock stability.
• Steve discovered that there is a channel in the concrete floor cutting east-west right underneath the MC end chamber; this is likely contributing to the sensitivity of our MC lock to motion near that chamber. Steve proposes supporting the MC end chamber table on some steel beams to "bridge" the channel.
• Osamu measured the mode-cleaner frequency noise while *clapping*, and found a significant increase in the noise between 200 Hz and 1 kHz, suggesting that acoustic noise dominates here. It may be coming in through the PSL enclosure, and we are considering acoustic shields such as are employed at the sites.
• Osamu found that an increase in the MCA gain causes an exponentially- growing 7 Hz oscillation that quickly saturates the VCO path and breaks lock. He thinks it is a result of a 7 Hz resonance in the end chamber stack, and will continue to investigate.
• Osamu found that if you increase the normal daily seismic noise by about a factor of 4, the MC will not be able to hold lock. So nobody should be kicking the end chamber.
• Ben made a generic DAQ interface card to get the mode cleaner fast signals into the DAQ at 16384, and has made and run the cables to the DAQ rack. He's swapping the filter chips in the anti-alias chassis.
• Dennis and Ben will get the fast channels into master.config.
• Intensity stabilization (B. Abbott, R. Abbott, F. Nocera, D. Ugolini):
• Ben and Flavio continue to work on the PSL ISS, which is working, but an order of magnitude short of spec.
• Seven ISS DC photodiode PCB boards are stuffed, and await testing.
• Electronics (B. Abbott, Taylor):
• Bob assembled the cross-connects for the two end racks (for the ETM suspension controllers, and transmitted beam sensing). He is already beginning the wiring on the east end. Ben is populating the racks with crates and modules.
• Dennis and Ben are getting ethernet into our core optics suspension controller rack (1Y4).
• Rolf says that the code for the core optics suspension controller rack (1Y4) is very similar to the sites and should take only 2 days to install.
• Jay plans to think about the mode cleaner digital WFS code with Laurie.
• All of the Pentiums for 1Y4 are now in hand, and the Penteks should be by the end of next week.
• Ben continues to design the interface between the Glasgow suspension electronics and CIT electronics. The Dspace whitening interface boards are being stuffed.
• Optical sensing (Smith):
• OPTICS PARTS LIST, Orders pending: 3 each, 1in mirror mounts are pending from Newport; input mode-matching telescope off-axis parabolic mirrors are pending from SORL; IFLEX1000 IR laser for optical lever is pending from Point Source Ltd; ; polarizers and half-wave plates for Faraday isolator from KLC; Faraday rotator from EOT; 3 PZT tilt platforms and 2 servo control drive electronics and strain gauge read-out electronics from Piezosystems Jena; 1.5 in and 2in fixed vacuum mirror mounts and an adapter spacer from ASCO are expected by 11/16/02; Faraday Isolator mechanical parts from CA Machine Co are expected by 11/9/02.
• FARADAY ISOLATOR: Awaiting parts.
• IFO MODE-MATCHING TELESCOPE: Redesign of the remote focus mechanism for telescope housing are almost complete; a vertical degree of freedom adjustment was added to the secondary mirror mount, similar to the LIGO design.
• Optics (Billingsley, Armandula), suspensions (Romie), OSEMs (Bob):
• Our BS, ITMx, and ITMy, are suspended and sitting on the South Annex clean room flow bench.
• Steve, Dennis, and Osamu have swapped the dirty OSEMs on our suspended ITMs with clean ones, and rebalanced them. They're having a lot of trouble with the BS, which isn't damping properly. The wire appears to be touching the side magnet. Investigation continues.
• Janeen is writing up the DCN for the the remaining two 40m TM suspension changes. She expects that the re-machining should take a week, and then another week for cleaning and baking.
• Janeen will borrow one of our unassembled SOS suspensions for prototyping some earthquake stop re-designs.
• Bob continues to build and clean OSEMs.
• Facilities and vacuum envelope (Ugolini, Vass, Jones):
• Dennis is working on getting RGA information into the DAQ system.
• Dennis is pusuing repair of one of our STACIS seismic isolators (SENW-x).
• South Annex Bake Ovens (Taylor, Cardenas):
• Bob is baking more OSEM parts. He's preparing for a big (600+ pieces) bake job for Janeen.

Thermal Noise Interferometer (Libbrecht)

no report

LASTI (Zucker)

LASTI (Coyne, Forbes, Hammond, Kern, Mason, MacInnis, McKenzie, Mittleman,
Ottaway, Rankin, Rollins, Shoemaker, Zucker)
---------------------------------------------------------------------
 

PSL (McKenzie, Rollins, Ottaway)
-------------------------------------------
Jamie is studying the issues of saturation of PDs to get to our goal of
300mA of photo-current. Kirk is looking into the limits of our new FSS
board, with the aim of improving its robustness to environmentally
produced perturbations.
 
 

EPI design and installation (Mason, MacInnis, Rankin, Forbes)
-----------------------------------------------------
The first HEPI housing assembly was installed on BSC0 with no major
problems. We have started installation of the second assembly.
 

Bill Forbes (CSR machinist) has been working in our shop with Myron on
last-minute clearance and fit mods to the HEPI housings.
 

The plumbing of the hydraulic lines is approximately 80% completed. We
have recieved the pump system from Caltech and moved it into the lab.
Ken Mailand is scheduled to arrive next week to install it.
 

We have recieved the first hydraulic actuator from LLO. This actuator
is not usable, but it is being used to check the fit in both the
horizontal and vertical axis and to start planning installation
procedures.
 

MEPI Characterization and Test (Ottaway, Coyne, Mittleman)
----------------------------------------------------------------------
We have started to design and close modal damping loops on the HAM platform.
Our first try worked well at suppressing the lowest horizontal modes
(see
http://emvogil-3.mit.edu/ilog/pub/ilog.cgi?group=lasti&date_to_view=11/01/2002&a
nchor_to_scroll_to=2002:11:01:17:41:53-ottaway).
 

HEPI Fabrication (Kern, Hammond)
----------------------------------------------------------------------
Hydro-tested Hyspan's un-annealed bellows last weekend.  We brought the
pressure to 150psi, stopping and venting the system every 10 psi.
Within our ability to measure these rolled structures it behave
elastically and always returned to its relaxed state. We were limited to
150psi by a hand pump so ordered a higher pressure replacement. On
Monday with the new pump the bellows yielded rather suddenly at 210psi.
When it did, the pressure went down into the low 100s.  Additional
pumping just continued to swell and yield it more with the pressure
going up to about ~150 and then back down to the low 100s.  We didn't
continue much past that point so as not to destroy any evidence on how
it failed.  It looks like the valley of the convolution yielded in
tension.  It seems to have started from the middle.  This is the first
time the bellows have been stressed to failure, which we find is about
~3x the system's operating pressure.  Good news.  Ameriflex, the
manufacturer of the replacement bellows is still on schedule to ship
this week.  We are ready to assemble 2 this weekend, which looks good to
get them to MIT next week.  The last 2 springs have been received from
the shop, characterized at LLO and delivered to MIT.  L4C mounts are in
the shop and should be finished by Nov 15.

Data Analysis and Computing (Lazzarini)

Simulation and Modeling ( Yamamoto )

* e2e weekly meeting

Virginio, Matt and Hiro discussed about the simulation of the mechanical
motion of the mirror. Topics include

(1) use of the accelerometer on top of the pier to study the effect of
    the huge noise at LLO (train, logging),

(2) direct measurement of the table top motion using OESM, optical lever,
    FP cavity,

(3) props and cons of using the ground motion vs pier top motion.
 

* LLO model
 

Virginio and Hiro are working to set up the simulation to study the
huge noise at LLO. Sany Yoshida made measurements of seismic correlations
at LLO LVEA, which shows fairly complication pattern. Sany analyzed it
and has a model for it. This will be useful for this simulation work. The
first  approach will be to record the time series of 6 stack motions
using accelerometers for the duration of the train passing and logging
activities - including several seconds of silent period - to simulate the
locked state and the lock break with different stack model to set the
requirements of the improving the SUS at LLO.
 

* LHO model
 

Luca wants to have a model to simulate the MC. He is going to prepare a
SimLink model to identify the system to be modeled. This is useful for
LLO modeling as well, in order to simulate the seismic effect to the lock
and noise level. This model is consisted of 3 suspended mirrors, with LSC
around. This will not be used integrated with the rest of the COC simulation,
because the band widths of these two subsystems are too different, and the
simulation can be very slow if they are to be simulated together. Rather,
this model will be used to study the frequency noise induced by MC.
 

* field model
 

The cavity response again frequency noise is not quite well implemented
in the summation cavity formulation (fast simulation). The issue was
found in the PRM model, but the same issue seems to exit in FP model.
Hiro is calculating the approximation used in the fast simulation module
to make it work properly.
 

Matt's new field model - continued.
 

* documentation
 

Hiro has updated the primitive reference manual, and is revising the
introductory document.
 

* GUI development
 

Bruce Sears
  - Cut and paste implementation completed
  - Fixing node naming bug
  - Checking all menus to make sure options make sense
 

Melody Araya
  - Continuing work on the modeler to read the revised file format
    and implement discussed optimizations.
 

Ed Maros, Bruce Sears
  - Started to work to separate JAlfi (GUI part of e2e) package from
    the simulation code package. GUI and simulation software are updated
    at a different pace, and this separation allows more timely update
    and distribution with less hassle.
 

LIGO Data Analysis System
 
 

Software Systems ( Blackburn )

Completed successfully two rounds of full system testing in preparation
for the LDAS 0.5.0 beta release. These tests identified over a dozen bugs
which have all been fixed now and we are about to start our last round of
system testing for this release. UWM has asked that we postpone the date
of the release for a couple of days to give them a chance to work with
the pre-release version. If they identify no issues, then we expect to
have the release on Monday. If they do find issues we will weigh the
schedule cost vs benefits to determine the next best release date.
 

We did discover a new thread issue in the GCC standard template file
this week. This one is can occur when multiple thread are attempting
to open or close a file at the same time. This is a very raw bug and
only shows up under extreme load. It is hope that this will be fixed
in the next GCC release. LDAS plans to migrate over to the new GCC in
the next development/release cycle.
 

The performance of LDAS has been slightly reduced in this release as
a result of the new frameCPP. The problem is in the inherited memory
management from the standard library. We will be implementing our own
memory management to resolve this performance issue in the next release.
Most effected by this performance degradation is the creation of RDS
Frames. We will probably have a 25% slow down in the production time.
 

It was not possible to get a working compression module into this release
of the frameCPP I/O library. It will be added in the next release.
 

This pre-release of LDAS has now been successfully exercised in the
context of the GriPhyN demonstration for the Super Computing 2002
conference next week. Everything is working very nicely and we even got
a preview of the graphical viewer on the milky way which will be used to
identify points on the sky for which a directed pulsar search has been
made.
 
 

Hardware Systems ( Anderson )
 
 

Caltech ( Al Wilson & Stuart Anderson )
 

* Installing RH7.3 on the desktop/workstations at CIT/millikan.
 

* Updating web page for KS instructions.
 

* Continued discussions with CACR and ITS regarding future Caltech
  Internet2 network connectivity.
 

* Successfully tested Apache-2.x on LDAS gateway machine.
 

* Supported RedHat 7.3 upgrade of desktop LDAS machines.
 

* Investigating Linux IDE-RAID NFS server performance.
 
 
 

Livingston ( Igor Yakushin )
 

* Helped Erik in Keith's absence to diagnose and fix problem with MIT's
  LDAS: somebody turned LDAS debugging flag on that caused huge extra
  output generated for each job.
 

* Submitted 'Global use of LDAS metadatabase across LIGO and LSC sites'
  technical note (LIGO-T020169-00-R) to DCC.
 

* Together with Chethan fixed the problem with mounting minute-trend
  data from fb0.
 

* Mounted E7 and S1GEO data.
 
 
 

Hanford ( Greg Mendell )
 

* LDAS was successfully moved from the staging building to the new
  building at LHO, Nov 2 - Nov 7.  The entire system has been brought up,
  the framebuilders are once again using the T3s for their disk space, and
  the LDAS servers are once again serving S1 data to fortress. The LDAS
  APIs were brought up briefly and test jobs were run. Thus, everything
  was shown to work as before the move.
 

* LDAS is currently down again for an upgrade of the Linux OS to Redhat 7.3.
  This means S1 data is currently available again at LHO from fb3 in the
  control room and from fortress, but it will be another day or so until LDAS
  is back up to run jobs.
 
 

Data Analysis Activities
 

MIT ( Katsavounidis )
 

Stefan:
 

Here is a short summary of what I was working on:
 

- I produced a bunch of sanity check plots for both streams
    of veto triggers, including deadtime and rate vs time and segments,
    Amplitude, Duration and time between triggers histograms.
    All is done for both playground and full S1.
 

- I started with scatter plots of AS_Q vs REFL_I for H1, using
    TFCLUSTER triggers for the full S1. The same thing for slope and
    L1 remains to be done.
 

The page http://emvogil-3.mit.edu/~sballmer/S1san/diagnostic.html
contains link to all of the above.
 

Laura:
 

Defined an epoch veto for the S1 triple coincidence analysis, based on
band limited RMS (6 min averages).
 

Extended the burst pipeline macros to calculate the background in triple
coincidences.
 

Produced plots and summary tables for the playground analysis. Continued
work on efficiency calculation through simulation.
 

Pushed the whole triple coincidence set through the pipeline. Now
wrapping up the results.
 

Ran tfcluster over the 3 hour GEO playground, with two threshold
settings and parsed the triggers into ASCII files for the GEO veto
analysis.
 

Caltech ( Weinstein )
 

- Generated lots of plots of S1 burst efficiency
  for detector network, averaged over
  source directions and polarizations.
 

Caltech ( Shawhan )
 

* Worked on veto optimization and other aspects of the inspiral upper limit
  analysis using S1 data.

LHO ( Mendell )
 

1) Worked with the PULG group to solve a round-off error problem in
   LALDemod. A fix for this, along with several other minor changes to the
   code, was checked into the LAL CVS repository last night by Xavier
   Siemens. Also worked on preliminary results as part of our preparing a
   report of our progress with the S1 data. See the PULG web page,
   http://www.lsc-group.phys.uwm.edu/pulgroup/, and the S1 investigations
   link (which is password protected).
 

2) Coding to use the calibration data in the knownpulsardemod DSO was
   completed and checked into the LALWrapper cvs repository.
 

LLO ( Yakushin )
 

1) Continue working on Wave DSO.
 
 

General Computing ( Wallace )
 
 

MIT:
 

(Keith)
 

Attending LISA conference.
 

Livingston:
 

(Shannon)
 

-Successfully evaluated and installed an anti virus solution
 for our mail server.  The product is very easy to install and
 configure and it integrates well with our existing mail server
 configuration.  The product has anti SPAM features also.
 The above mentioned anti virus software has been stopping an
 average of 4 viruses a day at our mail server in the first
 three days of being installed.
 

-Requested a quote on the fibers to install our new switches.
 

-Received the new switches from Foundry and started configuring
 them.
 

-Performed some maintenance on the mail aliases.
 

-Researching upgrade options for Marcel.
 

-Made a couple changes to the firewall configuration at LLO.
 

-Looking into another VPN software solution I learned about
 yesterday.  It looks interesting and may provide some
 solutions for Livingston.
 

Hanford:
 

(Christine)
 

- Called the repair person in to fix one of the printers.
 

- Created a new user account for an LSC member.  Changed the password on
  another.
 

- Various user support.
 

- Worked on web Sys. Admin. documentation.
 

CIT:
 

(Mike)
 

-Reloaded Phil Lindquist laptop from win98 to 2000 pro.
 

-Finished up loading a laptop with GC software for loaner pool plus setup
 user configurations to loan out to Helena.
 

-Still trying to finish up working on the Synchrotron workstation.
 

-Had to work on security issues this week this included locking down
 servers due unknown users trying to access the Security Accounts Manager.
 It looks like I have this situation under control.
 

-This week I had a lot of user support that included software/virus problems
 that were infecting the network.
 

-Went around getting some of the MAC addresses from PC's to update the
 General Computing IP database. This to make tracking infected/illegal
 use of computers much more easier to track down. I still have many
 more computers to attend too.
 

(Lisa)
 

Attending LISA conference.
 

(Bruce Sears)
 

-Ilog Maintenance and Upgrade: 3.5 days
 

- Next and Previous Log buttons now respond more appropriately
  when the adjacent day has no entries.
 

- Alphabetized user list in search feature.
 

- Added Most Current Log button, useful for rarely used logs.
 

- Init no longer creates a blank day's log, but asks for an
  initial entry.  Blank days will no longer appear in the log.
 

- Cleaned out entries which were blank or only tests of ilog.
 

- Added the possibility of background images for each log to
  make them easier to differentiate between.
 

- Distributing new update of ilog to MIT, LHO, and LLO.
 

(Veronica)
 

- LIGO website: most time was spent working on the Aspen Winter Conference
  webpages. Posting updates to the LIGO website. Collecting my own stock
  photography to keep for future use in graphics generation.
 

- CaJAGWR website: arranged with the ITS to have a virtual host name
  cajagwr.caltech.edu. Recorded and compressed a video of last seminar. The
  video is now posted along with the viewgraphs. Updated the roster and the
  seminars pages.
 

- LSC website: worked with the LSC roster database to see how it can be
  modified to allow expanded searches. Sill a work in progress.
 

- Project Science website: posting last-minute updates as they arrive.
 

- GNATS: looking into Szabi's request of updating the database.
 

(Larry)
 

-Ran down a few more procurement issues. SUN has extended their matching
 grant program. The replacement batteries for the UPS have arrived and tracking
 down the new UPS that was ordered at the same time.
 

-Continuing the server upgrades. The progress has been slow with all of
 the interruptions the past few weeks. I was able to resolve a number of
 configuration issues.
 

-Worked with Mike on chasing down infected machines and getting MAC addresses
 put in the database.
 

-Performed a number of network tests. Mostly between CIT and the Observatories.
 Things have improved a little but are still not as good as they were a month
 ago.
 

-Added a few more user accounts and modified a number of accounts.
 

-Went of the RAV e-mail anti-virus program with Shannon. It looks like it will
 be a good solution. Livingston will be implementing it full scale and CIT will
 start running its testing of the program next week.
 

-Went over some of the logistics with Shannon for the GigE network installation
 at Livingston. After going over a number of items on his present network the
 new system looks to be a major improvement for their setup.
 

-Assisted DCC on various items.
 

-Working with Ed C. to get some more of the old equipment turned over to
 Caltech.

LIGO II/Advanced R&D (Sanders)

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

This week I continued working with the reconfigured interferometric
position sensor. Basically I'm back where I was a week ago, getting
fringes from the Michelson using a laser test source, except I've
completely redone the mountings to make some components more secure and
add more degrees of freedom of adjustability. As a result the fringes are
much more stable and I'm in a better position to get it working with the
internal LED source.
 

From: Larry Jones <ljones@ligo.caltech.edu>
Advanced SEI

The SolidWorks files from HPD's contract to design and fab the SEI structure for testing in Stanford's ETF chamber have been input to the DCC as D020525. This includes a Zip file of the over 400 drawings (2D drawings, 3D parts and 3D assemblies) and a .pdf file to show (most of) the hardware in general. The DCC also now has hard copies of the nearly 100 2D drawings.
 

From: Peter King <pking@ligo.caltech.edu>
2.2 AdvLIGO PSL

The hardware for the technology exchange with the University of Hannover
has been assembled and the VME crate was installed.  The hardware rack is
installed next to the optical table.  At the moment we are experiencing a
number of computer related problems, network related issues, and the
compilation of the vxWorks kernel amongst other things.
 

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

Mode Cleaner

Helena and I continued to work on the assembly of the 2 prototype suspensions last week.

Again this week we have been taking a lot of photographs this week and these can be seen at http://www.ligo.caltech.edu/~ctorrie/ligotriple.html, and by clicking on the recent diary dates.

Height adapters and the catcher for the metal masses were delivered at the start of this week. CES is reworking the structures
and some associated parts. They are projected to be completed tomorrow afternoon. The Physics Shop is due to start work on other reworks associated with the endstops and global OSEMs.

 Mike Perreur-Lloyd is now at Caltech for ~1 month from U of Glasgow . Amoung other things we will work on detailed design of the recycling mirror suspension.

So far we have been spending time this week looking at Bills of material, drawing trees and the ability to copy drawings, and there associated files, using SOLIDWORKS Explorer as well as reviewing engineering drawing templates created in Glasgow.
We have also started assembly of the local control coils and there associated parts.
 

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

AdLIGO Suspensions
Working on mode cleaner design tasks. Height adapters were delivered last week. CES is reworking the structures and some associated parts. They are projected to be completed tomorrow afternoon.
Jay is planning to deliver the electronics for the MC prototype at the end of this week. Mark Barton is ready to hook up the GEO analog electronics with Jay's digital components and the dSPACE system.

Working with the suspension group on determining the maximum quad pendulum suspension length. This information is needed for the seismic prototype RFP, due near the end of November.

Magnets for the suspension prototypes have been found.

Mike Perreur-Lloyd has joined us for 5 weeks. It is with pleasure that we welcome him to Caltech and thank him for his support of the suspension design efforts.
 

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

Akiteru
Repaired all vacuum leaks.
When started realigning interferometer found that the North mirror was dropped and was seating inside the recoil mass. It had just slipped from the standoffs.
The damage was tracked back to an accident during vacuuming (opened gate valve with pressure on other side) that sent the mirrors to swing wildly.
Remounted mirror in situ but did not perfectly recovered the alignment. Mirror realigned by tilting the intermediate mass. May be sufficient to complete the measurements.
LATEST NEWS:
The 3m cavity is now back on line, and it has been locked for a few hours in air this afternoon. There was no natural lock loss. The duration is only limited for our operation for characterization.
I will try to operate it in vacuum soon, without the inertial damping. With luck, the towers won't drift too much.
For the damping, probably I will have to re-diagonalize the front tower we have made so many nasty tricks to recover the mirror misalignment there.
akiteru
I have managed to lock the cavity in vacuum this afternoon. The result did not get improved very spectacularly below 10 Hz as I wished, but it made the error signal spectrum much smoother at higher frequencies. Will try to test the damping in vacuum tomorrow.
akiteru

Alessandro Riccardo
In Pisa checked out that peeled off MoRuB film has no detectable layer of Ni, it peeled off cleanly. Although chemical deposition is probably good enough for most developmental tests, we will need to use sputtering for more intimate bonding

Stoyan
Ansys, installed modal analysis of hook + strings and simplified geometry, trouble with long strings because of number of nodes.
Revalving splatter.
Starting the new oven, checked out 3 10-8 l/s leak, OK to go starting first run soon.

Maddalena, Barbara
Submitted final reports.

Hareem
Repaired leak in DTA, adjusting thermal settings and recalibrating.

Allyson
Vickers hardness measurements systematically lower than Maddalenas, but with similar trend. Trying to make reliable measurements. Repeated one measurement with Xavier and Stoyan, and found different averages. Need more work to find a more repetitible technique. Some improvement by measuring flat to flat instead of tip to tip and with better lighting, but still need to work more.

Xavier
Cryo setup, calibrating the power reading of the heting shoes with external amperometers.
Found a stable excitation current, quantifying stability.

Charles
Working on Stress gauge and LVDTs
Achieved 3 g resolution over 30 Kg range
0.2 micron resolution over 1 mm max excursion.
Cutting samples and electro-polishing

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