Weekly Report for Week Ending July 10, 2003


 Exec. Comm. Agenda
Highlights
LSC
Administration
Hanford Observatory
Livingston Observatory
MIT
Caltech
Detector
40 Meter
TNI
LASTI
Data Analysis
Adv. LIGO Development
Past Weekly Reports

The LIGO Executive Committee Agenda for Monday  July 14, 2003 will be:

 (Meeting time: 10:30 am Pacific Time)

Open meeting 10:30 - 11:30

  1. Announcements
  2. LSC Issues (Saulson)
  3. Comments on Weekly Report
  4. WBS 1 LIGO I Construction (Lindquist)
  5. WBS 2 LIGO Lab Operations
  6. WBS 3 and 4  Advanced R&D and LIGO II (Shoemaker)
  7. CHANGE CONTROL BOARD/TECHNICAL REVIEW BOARD SESSION AS NEEDED
        1.  
          CR-030014

Special Items:  Amaldi meeting reprise, Annual Work Plan


Special Announcements:


Weekly Report Highlights
 


LSC Issues (Saulson)


no report


LIGO I Construction/LIGO Laboratory Administration (Lindquist)


LIGO Weekly Site Telecon (Lindquist)

No site teleconference was held on Thursday, July 10, 2003.

The list of current actions revised to reflect the status of open actions assigned through July 3, 2003 may be found at ACTION LIST.


PROPERTY MANAGEMENT (Chargois)

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


DOCUMENT CONTROL CENTER (Turner, Mak)

>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

> From: Cleveland Mak <mak_c@ligo.caltech.edu>

ACTIVITY
07/10/03 Packages Faxes
In  31 37
Out 8 21

Press here to access the DOCUMENT CONTROL CENTER WEB PAGE.


COST SCHEDULE CONTROL SYSTEMS (Cunningham, Brambila, Kaufman, Salone)

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

Press here for ACCOUNTS PAYABLE HISTORY DATA .

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

From: Gina Salone <gsalone@ligo.caltech.edu> From: Florence Kaufman <fkaufman@ligo.caltech.edu>

SUBCONTRACTS MANAGEMENT (Petrac, Jasnow)

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

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

CONSTRUCTION:

Although the Construction Cooperative Agreement has ended, there are a few items yet to be completed.   The glass vestibule on the LHO Laboratory Building will be completed by the middle of July due to the long lead delivery of the aluminum frame.  Also, some final items on the LLO pre-fabricated storage building will be completed this week.
OPERATIONS:
Another hearing of the Benton County Board of Adjustment will be held on July 10 to discuss the special use permit application of Maiden Wind Farms.  LIGO and BGPL will be represented at this hearing by Fred Raab, Pamela Krueger, of Perkins Coie, Paul Boynton, of the University of Washington, and T.C. Rich, of the Washington State Attorney General's Office.
Florence Kaufman and Ed Jasnow are continuing to develop a collection of operations procedures for the sites.

SUPPORT (Baldon, Lloyd, Tischler)

>Irene Baldon

>Dorothy Lloyd >From: Ryan Tischler <rtischle@ligo.caltech.edu>

Advanced LIGO (Frey)

From: Thomas Frey <tfrey@ligo.caltech.edu>

Out of the Office on Monday the 7th.

Accomplishments:

Out of the Office on Monday the 7th.

Accomplishments:

For list of documents that are being used to develop Adv. LIGO Cost and Schedule, see http://www.ligo.caltech.edu/~tfrey/Cost_MTG_082002/

Advanced LIGO MRE Proposal (Highest Priority)

Prepared a what if schedule to assist Phil with response to NSF regarding advance funding.

Continue to update the LASTI Schedule and incorporate any changes. Cost Book Tool. Development of the Advanced LIGO Project Controls Guidebook continues.

Project Web Site for posting schedule and progress related data continues to be updated with the latest and greatest.



Reports (Lindquist)

I have distributed a proposed outline and writing assignments for contributions for the Operations Annual Report and Work Plan for FY 2004.  I am requesting input by Friday, July 25, 2003 (sooner if possible).  I have also prepared a first draft of the budget model for FY 2004.  The total exceeds the $33 million funding profile by $438,186 and includes no reserve.  Please review for potential reductions or omissions.



Change Control/Contingency (Lindquist)

The LIGO Change Control Board met on June 23, 2003 as part of the normally scheduled Executive Committee Meeting.  A .pdf version of the minutes can now be found at: http://www.ligo.caltech.edu/~phil/ChangeBoard/M030132-00.pdf

The following change requests were discussed:

Change Request CR-030008--the current cost estimate is less than the threshold requiring formal approval of the change board.  This change request is for information only.
Change Request CR-030011--External Pre-Isolation (EPI) was approved.
Change Request CR-030013--Atomic Clock Timing System was approved.

Signed originals of the documents will be found in the document control center.

Florence has prepared an analysis of the staffing levels for the third quarter and the adjustments that should be made to the Operations budgets to reflect actual levels verses the budgets.  I have prepared CR-030014, which reduces the Operations budgets by $265,676.

The change request and analysis has been distributed to the task leaders affected.

I propose to review this change request during the Monday, July 14, 2003 meeting of the Executive Committee. :
 
CR-030014 Operations Staffing - Adjustment for Third Quarter Actual Costs P. Lindquist July 10, 2003



Human Resources (Akutagawa)

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


Quality/Safety (Tyler)

>From: Bill Tyler <tyler@ligo.caltech.edu>

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


Summary of Commissioning Activities at LIGO Hanford Observatory(compiled by L.Matone)----------------------------------------------------------------------------In the process of getting H1 back in CM    o new LSC/ASC code and code settings have been updated      (seehttp://blue.ligo-wa.caltech.edu/ilog/pub/ilog.cgi?group=detector&date_to_view=07/06/2003&anchor_to_scroll_to=2003:07:06:22:35:23-peterF);    o when locking one arm, its error signal was observed to be      contaminated by the MC vertical mode      (seehttp://blue.ligo-wa.caltech.edu/ilog/pub/ilog.cgi?group=detector&date_to_view=07/06/2003&anchor_to_scroll_to=2003:07:06:22:52:50-peterF);    o ETM DAC noise measured      (seehttp://blue.ligo-wa.caltech.edu/ilog/pub/ilog.cgi?group=detector&date_to_view=07/07/2003&anchor_to_scroll_to=2003:07:07:10:24:18-peterF);    o H1 locks in 'acquire' mode      (seehttp://blue.ligo-wa.caltech.edu/ilog/pub/ilog.cgi?group=detector&date_to_view=07/08/2003&anchor_to_scroll_to=2003:07:08:23:43:44-nergis);    o H1 locks in 'CM'      (seehttp://blue.ligo-wa.caltech.edu/ilog/pub/ilog.cgi?group=detector&date_to_view=07/09/2003&anchor_to_scroll_to=2003:07:10:04:26:38-peterF);WFS5 commissioning    o AM laser characterization      (seehttp://blue.ligo-wa.caltech.edu/ilog/pub/ilog.cgi?group=detector&date_to_view=07/07/2003&anchor_to_scroll_to=2003:07:07:23:10:18-paul);    o Y-arm sensing matrix measured (see elog entry on july 10th, 2003);H2: The MC leveling was revisited      (seehttp://blue.ligo-wa.caltech.edu/ilog/pub/ilog.cgi?group=detector&date_to_view=07/09/2003&anchor_to_scroll_to=2003:07:09:10:58:53-josephb);      (seehttp://blue.ligo-wa.caltech.edu/ilog/pub/ilog.cgi?group=detector&date_to_view=07/09/2003&anchor_to_scroll_to=2003:07:10:02:37:27-josephb);H1: MC power budget and linewidth measurements were made      (see elog entry on july 10th, 2003);



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


LLO Weekly (Zucker)
-------------------------------------------------------------------
-------------------------------------------------------------------
Announcement: Rich Riesen has accepted the new role of LLO Site
Safety and Security Coordinator. He will work closely with me to insure
a safe and secure working environment for all LLO staff and visitors ,
and to help protect our sensitive instruments from contamination and
damage. Please join me in welcoming Rich to this new responsibility.
 

Interferometer Commissioning
--------------------------------------------------------------------
Continued work on establishing a performance baseline in preparation for
a vacuum incursion, currently planned for 7/23/03, to install IO baffles
and correct asymmetry and recycling cavity length errors. Gary Traylor
will take the lead organizing the vent itself, and head up the
ITM moving team; Harry Overmier and Rich Riesen will lead additional
teams to install the new baffles in HAM's 1 and 2, and to rig doors and
cleanrooms, respectively.
 

We continued measuring and tuning wavefront sensor
heads and characterizing RF phases. We also bounded noise effects
due to the anomalous PRC->AS coupling reported previously, and found
it is not a dominant problem (yet) at most frequencies. We have been
trying to develop accurate and routine methods for optics
characterization, including MC and arm cavity ringdowns, with a view
toward establishing routine assays to monitor for optic degradation.
Locking per se has been reasonably consistent over the week, but we are
again having difficulties negotiating the gain and power reallocations
associated with reaching the low-noise mode (a.k.a., running through the
"up" script). We are now systematically characterizing
signal levels prior to transitions that blow us out of lock to find
clues to what is saturating.
 

Safety and security (R. Riesen)
--------------------------------------------------------------------
The LDAS machine room access has been changed to accept all valid access
cards. All laser safety signs (site wide) have had burnt out light bulbs
replaced. I have been in contact with Bill Tyler and he will send me the
list of safety items that need addressing. LVEA crane inspection has
been scheduled for Monday 7-14-03 (8am-4pm).
The Toyota forklift has been inspected and serviced.
The Power Scrubber has been inspected and needed replacement parts will
be installed Thurs. 7-10-03 The riding sweeper will be serviced Thurs
7-10-03 (I believe it will need a new battery).
Continuing work on the pre-vent punch list. Working with Ed and Allen in
getting out of the in-town warehouse.
 

E2E SOS Modeling (T. Findley, S. Yoshida)
--------------------------------------------------------------------
We continued working on small optics box. We focused on local gain
calibration. We found that the calculated position damping characteristics  behave as expected. When we gave the gain inputs of 2000 to pos, pit and yaw,  the position signal decayed in 20 seconds by an order of magnitude. However,  in the same run the yaw and pitch signal did not decay (they seemed to rather grow). We are investigating the cause of this observation.
 
 

General laboratory support (J. Kern)
--------------------------------------------------------------------
Spec-ed and ordered RD modulated, fiber coupled laser diodes for Rai.
These to make RF PD calibration of ISC tables easier. Working with Rich
to transfer the administration of the Laser Safety Interlock/Site
Security System to him. Gathered together various work plans and check
lists from previous vents at LLO, and distributed to the teams
responsible for the various tasks in the upcoming vent. Also collected
field notes and sketches in order to revisit use of the CAS system 2
years ago, when we used it to relocate the BS and ITM-y following use of
an incorrect prism constant during installation.
 
 

Civil & vacuum facilities (MZ for A. Sibley):
-------------------------------------------------------------------
The new warehouse is fully commissioned and stored equipment is now
being moved from the Baton Rouge warehouse back to our site. We are
especially grateful to Ed Chargeois, who came out this week with a GSA
representative to help us decommission some unneeded equipment and to
ship some beamtube bakeout components up to Hanford.
 

Commissioning of the new front entry gate hiccupped due to an incorrect
rail being shipped from the gate vendor; a replacement is on its way and
we expect the gate to be available for operation next week. A review of
protocol and procedures will be held and suitable instructions issued to
staff and visitors prior to activating the mechanism.
 

The lightning and grounding system completion continues to wait for a
long enough stretch of dry weather to make the soil workable.
 

LLO seismic retrofit (J. Kern)
------------------------------------------------------------------------
Bid package for the External Pre-isolator was completed last week and
sent to Ed Jasnow for release. Bidders were requested to return their
responses by July 18. Engineering estimates of projected procurement
costs for LLO/LASTI installation are still in the works. Building up a
hardware model of the bypass tree. Working with Amit and Brian to clear
up some inconsistencies in the proportional valve calibration manifold.
 

General computing (S. Roddy)
-----------------------------------------------------------------------
Succesfully set up and tested a disk based backup server. The server is
using an existing rack mount PC that we already had on site. I added a
3ware RAID card and 4 200 GB hard drives to it which yields .6 TB of
RAID 5 storage for backups. The software that I evaluated with this unit
is the arkeia backup software. I was able to successfully set up the
software and back up a windows client and a linux client in about 2
hours of setup time. The majority of this time was in configuring the
server. The client install only takes about 5-10 minutes. So far I think
this would be suitable for a backup solution to replace the current one
on site. We must do something since we have outgrown the tape library
here. I also found the software easier to use than our current solution.
Still working on some pages for the support.ligo-la.caltech.edu site. I
will roll out more information to this site as I have time.
 

Spent all day Saturday working on our web server applying some security
patches. The web site will be moved very soon to some new hardware.
 

Made some firewall changes and tightened down some of the access lists.
 

Found some bad RAM in one of the machines here via memtest and replaced it.
 

Looks like Bellsouth is finally going to install the ISDN line for our
dial up access to the observatory. Allen has spent lots of time on the
phone back and forth with Bellsouth working on this. It should be an
easy thing for them to do, but Bellsouth has been notoriously difficult.
 

took care of the usual round of user and software issues this week also.
 

Shannon
 

CDS Software (Ash Khan)
-------------------------------------------------------------------------------------------------
1) Building EPICS controller for the tidal servo to load the paladin
file automatically.
 

2) Continuing work on Watchdog system.
 

3) Worked with Chethan on dust montior problem.
 

LDAS (Igor Yakushin)
-------------------------------------------------------------------------------------------------
1) On Sunday night the temperature monitor in the control room shut down
the power to LDAS computers. To prevent it from happening again without
a real reason, the temperature is now measured not in the communication
room but directly behind the racks and the threshold value was raised
from 85 to 92F.
 

2) 3 T3 disks and 1 battery failed. Two of the disks are in the same T3
where raw data from ifo is written. I have just received the the
replacement disks and will install them today.
 

3) Configured new datacon and beowulf machines.
 

LDAS data analysis.
Still studying how well waveburst detects the hardware injections.


Detector/Technical Support (Coyne)


no report


40 Meter Interferometer (Weinstein)


no report


Thermal Noise Interferometer (Libbrecht)


We have been continuing to address the TNI noise curve on two fronts.  First, we have been focusing on scattered light noise, which we believe is the dominant noise source at intermediate frequencies.  The challenge there is to understand just where the noise in entering the system, and how, and then to eliminate it.  We have been adding additional scattered light to the system at various points, measuring the noise, and developing models for what we measure.

   Second, we have been working to improve the high-frequency noise by improving our laser frequency stability servo at high frequencies.  This requires additional electronics, which we have been developing in collaboration with CDS.  Michael Zhang just finished his first servo board and has been debugging it.

   Eric also spent last week at LLO working on locking issues.


Data Analysis and Computing (Lazzarini)


--------------------------------
Simulation and Modeling (Bhawal)
--------------------------------
 

Weekly Physics Meeting
------------------------
Ken Yoshiki from LLO discussed with Hiro and Biplab about some problems he
is having in getting LIGO longitudinal transfer functions. Virginio from
LHO explained about his and Luca's effort to diagonalize the WFS sensing
matrix.
 

SURF
--------
(Hiro)
* LIGO performance evaluation using as built phasemap (Raghu Dodda)
  The program to convert the measured phase map to the format FFT accepts
  has been completed. A simple matlab code has been written to see the data
  visually to confirm the conversion. A meeting was held among Bill Kells,
  Raghu Dodda, Biplab and Hiro to discuss the FFT run.
  The main focus is to understand the effect of the surface roughness of
  the arm test masses. So the first run will be the following :
 

  Use the ROC of the 4 LHO 4k arm mirrors to calculate the RM ROC and the
  input beam parameter to define the perfectly mode matched system.
  Run FFT using idealistic surface, but with as built arm mirror ROCs.
  Phase mass measured within 15 cm will be extended to 24cm by a simple
  algorithm. If the run is ready before this algorithm is completed, the
  outside region will be simply filled by 0. Place 4 phasemaps on the
  surfaces of the 4 arm test masses to compare the performance.
 

  Future study will include the realistic beam splitter, RM and thermal
  sensing effect.
 

* Signal generation module (Jeff Jauregui)
  Two e2e primitive modules are under development, one to generate the GW
  source and the other to convert the signal to the phase change induced
  in the field propagation in two arms.
 

* Noise study (Xiao Xu, Juri Agresti)
  Two kind of noise hunting simulation is going on.
  One is the evaluation of the effects of various known noise sources,
  like electronic and digitization. The best noise curve after turning off
  all known noises in SimLIGO is still higher by fair amount over the revised
  SRD 96 curve at around 100 Hz. The mirror motion noises of the 4 test
  masses account for this excess, and the actual cause is being hunted down.
 

  Second is the one guided by Stan's talk in October 2001. Finally we are
  at the stage to do his homework. Simple cases, like asymmetry of two ITM's
  losses, are the being investigated first, and harder problems will be
  addressed gradually.
 

* Radiation effect (Yoriko Yanagi)
  The Interferometer response against the change of the input laser
  direction is being studied. This will be done with and without the
  radiation pressure to see how the effect plays in LIGO I.
 

Transfer Fn of LIGO for changed length
----------------------------------------
(Biplab) Interacted with Ken and Rana from LLO to generate proper Transfer
  Functions for LIGO.
 

WFS Signals
-------------
(Biplab) Observed that the Non-Resonant sideband demodulated signals at the
  reflected ports (WFS 3 and 4) reduces as the IFO goes from a hot state to
  a cooler one. Also, signs of some of the signals get changed. Looking at
  the field amplitudes and contribution of various beating terms to
  understand these.
 

Code development and maintenance
---------------------------------
(Hiro)
 The CVS source codes are updated so that the latest SimLIGO can be
 simulated. Code modifications of expression
 parser is finally in CVS to speed up (some) the FUNC calculation.
 

(Melody)
 - Continued working on a prototype that performs dynamic linking.
   Started working on getting the scripts to configure the working
   environment (OS, directory, etc).
   Currently working on shared library source code.
 

Alfi
-----
(Bruce)
        - Writing full Alfi documentation.
        - Cleaned up some obsolete / incorrectly enabled menu options.
 

----------------------------------------------
LIGO Data Analysis System Software (Blackburn)
----------------------------------------------
 

The new release of LAL and LALwrapper were released this week. The new code
was checked out from the UWM CVS repository and built on the LDAS DEV and
TEST systems. Two of the DSOs were found to not execute properly under LDAS.
These were the waveburst and power. The LSC authors of these were contacted
for advise. The waveburst require changes to the input parameters and a
change to one of the database tables. The power DSO was more problematic
and required changes to source code. These changes were tested on the LDAS-
TEST system and found to fix the problem. We are now waiting for the UWM
group to package up a release with the fix before retesting and finally
pushing these new distributions to the sites.
 

The metaDataAPI is now fully threaded for getting information out of the
LDAS database. This has been tested all week and shows significant improvements
in the database interaction times for ldas jobs. The insertion of information
into the database with threaded functions is still under development, both
at the C++ and the TCL levels.
 

With the ability to compile with optimization and inlining, combined with the
threaded database extraction routines, LDAS on the development system is now
able to sustain over 1000 jobs per hour. This is up from about 700 jobs per
hour prior to these changes.
 

The frameAPI and eventMonitorAPI continue to have occasional core dumps under
the new optimization and inlining compile levels. These two APIs rely heavily
on hash maps in the standard library so a standalone threaded program was
developed to see if this was the source of these core dumps. However, the
hash map code tested without thread issues and is no longer considered the
source of these issues.
 

New mpiAPI code introduced this week is now causing about a 1.5% failure rate
on the development system. The new code was intended to address the dual SMP
hardware configuration of the new nodes. It looks like there will be some
debugging necessary to remove this unwanted failure mode.
 

Installed the latest fixpak for DB2 7.2 onto ldasbox2. It still has problems
on RH9 specifically, db2start does not return. Tried setting the
LD_ASSUME_KERNEL environment variable in .cshrc and .bash_profile and in
some db2-specific cshrc/profile scripts, but it did not help.
 

Several open problem reports on the frameAPI and dataConditionAPI were
worked on this week. These address user experiences post 0.7.0 release of
LDAS and are directed at making the creation of RDS frames and other user
frame files more friendly.
 

Several failures in the computerized LDAS account authorization system occurred
over the past week. These seem to be related to bugs or configuration issues
in the apache web server. All account which experienced failures were added by
hand successfully.
 

---------------------------------------------------
LIGO Data Analysis System Administration (Anderson)
---------------------------------------------------
 

Caltech
-------
(Dan Kozak)
 

* Finished re-archiving all NDAS frames to 9940B density.
 

* Dealt with an unusual number of SAM-QFS problems, mostly stuck tapes
  but also an inexplicable "fibre channel goes offline" situation.
 

* Helped with a similar FC problem at LHO.
 

* Provided guidance in configuration of new FC switch at LHO.
 

* Worked with our new 3510s to get them online.  With some help from Sun,
  it looks like we should have a big filesystem configured later today
  (some RAID sets are being rebuilt as we speak).
 
 

(Al Wilson)
 

* Worked on nodes in cit Beowulf cluster, pre-wiring cat5 cables in groups
  of 8 for easy installation.
 

* Sent the new updated image for nodes to sites, LHO has started cloning
 

* Updated admin scripts to deal with lager clusters
 
 

(Stuart Anderson)
 

* Incrementally adding nodes to the large LDAS-CIT cluster--currently at
  78 out of 210.
 

* Installed 2 more Sun 280R servers in the LDAS-DEV system: 1 for nightly
  LDAS builds, and 1 for database performance testing.
 

* Re-wiring many of the computers in 605 Millikan to prepare for the
  Ethernet switch upgrade to Gigabit connections for the 8 node
  development Beowulf cluster.
 
 
 

MIT
---
(Keith Bayer)
 

* Finalized equipment for PC raid units and received quotes.
 

* Working on LDR to transfer double coincidence S2 data from Caltech.
 
 
 

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

* On Sunday night the temperature monitor in the control room shut down
  the power to LDAS computers. To prevent it from happening again without
  a real reason, the temperature is now measured not in the communication
  room but directly behind the racks and the threshold value was raised
  from 85 to 92F.
 

* 3 T3 disks and 1 battery failed. Two of the disks are in the same T3
  where raw data from ifo is written. I have just received the the
  replacement disks and will install them today.
 

* Configured new datacon and beowulf machines.
 
 
 

Hanford
-------
(Greg Mendell)
 

* Continuing to work with Robert Schofield to create an intersite S2
  PEM RDS for his analysis.  There have some problems with the archive at
  CIT that Dan Kozak has overcome, and I have been working to update the
  createrds driver script to better handle certain error conditions.
 
* Working with Ben Johnson to prepare for recabling the fiber channel
  devices in LDAS room at LHO to work with the new fiber channel switch.
 
 

(Ben Johnson)
 

* Received new nodes 46 and 69 from ASA. Both boot now and are running
  memtest86.
 

* I have basically installed the new system image on new nodes 44-140
  (less #'s 46, 69, 82, 117, and 121; no show stoppers though). I am
  editing node 140 with localizations. I plan on making it the "golden
  client" at LDAS LHO.
 

* A T3 disk failed on t3-5, this was successfully replaced by a Seagate
  Cheetah 5 disk, July 9 2003.
 

* The D1000 connected to the admin box may have a bad disk, or at least
  the filesystem was corrupted somehow. The system log messages point to
  c1t10d0 as the possible source of trouble. Unmounting /d1000 and running
  fsck on the D1000's filesystem appears to have cleared the problem (it
  reported "FREE BLOCK COUNT(S) WRONG IN SUPERBLK".
 

* Installed SANbox2 software on admin (see admin:/usr/opt/SUNWsmgr2).
  Configured all ports on the new FC switch as TL ports.
 

-------------------------------------------------
Data Analysis Activities (Anderson for Lazzarini)
-------------------------------------------------
 

(Greg Mendell)
 

1) Last week I updated the knownpulsardemod DSO to work with the latest
LAL code; this was included in the release of LAL/LALWrapper Version 2.1
this week.
 

2) Continued work on the stackslide DSO.  The goal is to have the first
working version completed by the August LSC meeting.
 

3) Worked with my SURF student Anah Mourant on her pulsar parameter
estimation code for LALApps. The code works on simulated data and will
be used to test actual analysis code in the future.
 
 

(Igor Yakushin)
 

Still studying how well waveburst detects the hardware injections.
 
 

(Kaice Reilly)
 

I have been trying to get the > 100000 ilwd files output from the
datacond in a more managable format. Several attempts to read this
into matlab have failed but I think I have a system now.  It  takes
several hours for the process to fail or not.  Work on the stochastic dso
is slow. I am finding that I have to convert many data types in order to
pull the functionality into lal from lalwrapper.  Also, I have been helping
a graduate student at Stanford with a chapter in his thesis.
 
 

(Peter Shawhan)
 

* Continuing to work with Evan Ochsner on new methods to veto "garbage"
triggers in the inspiral search.  This week we managed to get the standard
inspiral search code running in standalone mode, to enable code development
and debugging.
 

* Re-ran the LDAS job which found the loudest event candidate in the S1
inspiral search.  Found some discrepancies in event parameters, which I
tracked down as being due to two code changes made since the job was
originally run.  Verified that the current chi-square calculation in the
inspiral search code does what it is supposed to do.
 

* Created a "LIGO analysis segment wizard", an interactive tool to
generate lists of segments of good-quality data, where the user can choose
which data quality flags to heed and which to ignore.  This uses information
from the <a href="http://tenaya.physics.lsa.umich.edu/~keithr/S2DQ/S2seglists.html">S2 Segment Data Quality Repository</a>
and is now available as a LIGOtools package.
 
 
 

---------------------------
General Computing (Wallace)
---------------------------
 

MIT:
(Keith)
-Put tubera (SB1000) onto gc network to allow greater access
-Fixed library PC to support external Sony DVD burner
-Looking into our current relays after spam was sent out from mail server
-Ordering replacement memory for laptop
-Ordering 180GB SCSI drive as backup / replacement for gc file server
-Working on wireless router replacement in NW17
-Working on SAMBA/SSH tunnel for gc windows boxes
 

Livingston:
(Shannon)
-Successfully set up and tested a disk based backup server.  The server is
using an existing rack mount PC that we already had on site.  I added a
3ware RAID card and 4 200 GB hard drives to it which yields .6 TB of
RAID 5 storage for backups.  The software that I evaluated with this
unit is the arkeia backup software.  I was able to successfully set up
the software and back up a windows client and a linux client in about 2
hours of setup time. The majority of this time was in configuring the
server. The client install only takes about 5-10 minutes. So far I
think this would be suitable for a backup solution to replace the
current one on site. We must do something since we have outgrown the
tape library here. I also found the software easier to use than our
current solution.
-Still working on some pages for the support.ligo-la.caltech.edu site.  I
will roll out more information to this site as I have time.
-Spent all day Saturday working on our web server applying some security
patches.  The web site will be moved very soon to some new hardware.
-Made some firewall changes and tightened down some of the access lists.
-Found some bad RAM in one of the machines here via memtest and replaced it.
-Looks like Bellsouth is finally going to install the ISDN line for our
dial up access to the observatory.  Allen has spent lots of time on the
phone back and forth with Bellsouth working on this.  It should be an
easy thing for them to do, but Bellsouth has been notoriously difficult.
-Took care of the usual round of user and software issues this week also.
 

Hanford:
(Christine)
-Most of the time has been spent on the OC3 upgrade. Installation of the
equipment has taken place. There have been some problems with the network since
the installation and the issues are being worked on along with more testing of
the new network.
 

CIT:
(Veronica)
- LIGO website: continue working with George Stokes on troubleshooting
the DCC database.
Training Cindy Akutagawa in web-related work and general computer skills
for her new assignment with the visitors program. Setting up a database of
visitors, postdocs, and visiting staff to provide a web interface for easy
input/output.
Updated the roster database and did some troubleshooting.
Posted various updates to parts of the LIGO website.
Posted new account information at the Internal Bulletin Board. Converted a
pdf document for Florence so that it is compatible with her Acrobat
version and is usable.
Tracked digital still camera specs for Ken Mailand.
- LSC website: working with Peter Saulson on changes/updates to the
website. Posting updates as Peter dispatches them.
- Project Science website: user support and updates of the database of
attendees.
- CaJAGWR website: updated the roster webpage.
 

(Mike)
-Loaded three pc's for additional surf students that showed up this week.
This included loading 2000 pro and General Computing Software plus
additional engineering packages. These are new temporary workstations that
I had to double up in existing cubicles/offices. This turned out to be a
project, for this meant setting up a complete setup with monitors,
keyboards, mice and enabling multiple Ethernet connections.
-Reloaded Lee Cardenas' old pc that is going to be used for his lab
across from his office that is going to be used for taking measurements
only. I also went over a few software/hardware issues that he was having on
his updated pc that I swap him out with.
I still have to load some additional software to complete this reload.
-Started loading two new pc's for Millikan conference room and SCR these
computers are to use for VRVS, virtual conferences.
 

(Lisa)
- Currently have a beta of a Bayesian spam filter running.  I'm still trying to
determine if the configuration requirements will be workable in our environment.
- Setup a couple of new accounts.
- Heavy monitoring of the mail servers and worked on a couple of glitches.
- Currently running a beta of Sun Management Console.
 

(Larry)
-Worked a couple of computer setup issues. Nothing major just some mounting
problems and nfs daemons needing to be restarted.
-Still spending time with helping get the SURF students setup and going. It
appears things are starting to settle down.
-Resolved a couple of hardware issues on different computers. The SUN box still
needs to be tested.
-Worked with the DCC on different file issues. Also, worked with George a little
on his rework of the database system for the DCC.
-Spent time trying to retrieve more lost documentation on some purchases for the
p-card people.
Made a number of purchases, mostly supply items.
-Most of the week was spent on misc. user support items. Setting up and fixing
accounts. Helping users with their setups and changes.


Advanced LIGO Development (Shoemaker)



 

Advanced LIGO and supporting R&D

Seismic Isolation

No report

Suspension

From: JaneenRomie <romie_j@ligo.caltech.edu>


AdLIGO Suspensions
Had very successful meetings with Caroline Cantley and Justin Greenhalgh last week here at Caltech. Working on quad earthquake stop positioning. Had a meeting with Russell and Caroline about earthquake stops this morning. Coordinating for our team visit to Glasgow the second week of August.

Gin Gin
John Jacob has written and requested the two Gin Ginsupsensions be shipped to them around July 31st. To this end, I've been working with Doug on designing and fabricating optics containers that will be used to ship the sapphire masses to the Gin Gin facility. Bob Taylor reports that the Gin Gin parts are in the bake ovens. The magnets will be scanned today. The alum and stainless parts still have a day to go in the ovens. Still waiting for parts from CES to assemble the Gin Gin and AdLIGOosems.


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

SUS Meeting

Caroline Cantley and Justin Greenhalgh visited from the UK as part of the Advanced LIGO suspension effort. Along with Mike Lloyd, who is visiting from U. of Glasgow, we spent a day discussing the aspects of the MC suspension, how we might assemble and adjust an ETM and assembled one of the mode-cleaner suspensions from scratch.
Discussions on how we step forward in order to produce a prototype quad were held with Dennis Coyne and JaneenRomie, with input from Helena, GariLynn and Norna Robertson.

Norna Robertson, Mike Lloyd and I have held further discussions related to the ETM layout and the actions that are pending.

MC

Suspension # 2 has been prepared and delivered to Stanford. Mark Barton is visiting Stanford in order to look at magnetic field effects around the structure.

RM
Mike Lloyd and I have been testing pre-prototype set-ups for the controls prototype suspension. These include a rotational adjuster, an eddy current damper to damp the upper blades internal mode and an upper mass with pitch and roll adjustment.

ETM
Mike Lloyd and I are working on a rotational adjuster for the upmost stage in the ETM suspension. We are also looking at the table cloth arrangement around the upper intermediate and upper mass.
Janeen has started to consider the earthquake stop and their associated brackets around the lower intermediate and test mass.


Pre-stabilized Laser

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


    The following is a summary of the lasers working group telecon held
last Thursday.

    The performance test of the new LZH laser heads is currently underway.
The tests include measurements of the thermal lensing, birefringence,
aberrations and small-signal gain measurements.

    Stanford have had some problems with a parasitic mode with their
end-pumped slabs.  A compound was tried to spoil the total internal
reflection of the parasitic transverse mode but some problems remain.

Adelaide should have their new laser heads for the high power stage
ready by November.  In the meanwhile, work on the system is proceeding with
the old heads.


Input Optics

No report.

Core Optics

No report.

Auxiliary Optics

No report

Interferometer Sensing and Controls

No report

Data Acquisition, Diagnostics, Network & Supervisory Control

No report

Other Laboratory R&D

From: Richard Mittleman <richard@ligo.mit.edu>


  MIT-Quad Prototype

  Andrew has mounted the 3 OSEMs on the two third masses of each
quad-chain.  He has contracted the electronics necessary to drive the
OSEMs. After he finished testing the OSEMs out he moved the two chains so
that they are now about 2 inches apart and is now ready to start driving
them.

EPIs

  We are still working on a HEPI-BSC blended modal controller, which
continues to be quite difficult.  We are also working on a MEPI-HAM
controller, which combines both local and modal feedback. In the MEPI-HAM
case the combined controller seems to be easier to design than the plainer
modal controller.  After exploring this concept we plan to try it out on
the HEPI-BSC plant to see if makes designing a blended modal controller
easier.


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