The LIGO Executive Committee Agenda for Monday, November 16, 2009 will
be:
(Meeting time: 10:30 am Pacific Time)
1. Announcements
2. LSC - Reitze
3. Focus Topic
Financial Status for Operations as of the end of October (Lindquist, Oracion).
4. Change Control Actions
5. Advanced LIGO
- Overall - Shoemaker
- Project Management - Wilkinson
6. Enhanced LIGO - Adhikari / Zucker
- S6 Preparation - Whitcomb
7. Sites
- Hanford - Raab
- Livingston - Giaime
- MIT - Shoemaker / Fritschel
8. Caltech
- Administration - Lindquist
- Engineering
Optical and Mehanical - Coyne
- Control and Data Systems - Bork
- Lab Computing - Anderson
- Instrument Science and 40M - Gustafson
- Data Analysis - Weinstein
Calendar of future Executive Commitee Meetings
LSC Issues (Reitze)
- The LSC working groups are currently running elections for chairs. The data analysis working groups will elect new deputy chairs and the instrument science groups will elect new chairs. The elections should be completed by the December LV meeting.
- Two LSC observational papers have been published last week:
- "Search for gravitational-wave bursts in the first year of the fifth LIGO science run," has been published online 11 November 2009, in the 15 November 2009 issue of Physical Review D (Vol.80, No.10):
URL: http://link.aps.org/abstract/PRD/v80/e102001
DOI: 10.1103/PhysRevD.80.102001
- "Search for high frequency gravitational-wave bursts in the first calendar year of LIGO's fifth science run" has been published online 11 November 2009, in the 15 November 2009 issue of Physical Review D (Vol.80, No.10):
URL: http://link.aps.org/abstract/PRD/v80/e102002
DOI: 10.1103/PhysRevD.80.102002
LIGO
Laboratory Administration (Lindquist)
PROPERTY ACCOUNTING (Luna)
From: Rod Luna <rluna@ligo.caltech.edu>
- Working with Property Services on year end reporting of real property.
- Working with Property Services on GSA leased and Government-owned vehicles.
DOCUMENT CONTROL CENTER (Mak)
From Cleveland Mak <mak@ligo.caltech.edu>
FINANCIAL SYSTEMS (Lindquist, Oracion)
From: Karl Oracion <koracion@ligo.caltech.edu>
- Completed FY2009 (PHY-0757058) LIGO Operations Report for October 2009 and posted report on the network.
- Issued monthly reports for Visitor's program, UW-Madison, UW-Milwaukee, U.Glasgow, outreach, low noise, and four discretionary awards.
- Currently working on FY2010 (PHY-0757058) LIGO Operations Report for October 2009. .
SUBCONTRACTS MANAGEMENT (Arvizu, Champagnie, Jasnow, Marroquin, Salone)
From: Rudy Arvizu <arvizu_r@ligo.caltech.edu>
From: Jacqueline Champagnie
From: Steve Marroquin smarroqu@caltech.edu
- Executed Change Order No. 2 to Purchase Order contract No. 75-S062082 for the continuing services of consultant through 9/30/10.
- No report (visiting Lyon).
PROPOSALS, REPORTS, BUDGETS (Lindquist, Beckett)
From: Dave Beckett <beckett@ligo.caltech.edu>
- This week Phil and I finished a final draft of the monthly report. The report will be sent to the NSF on schedule.
CHANGE REQUESTS (Lindquist)
HUMAN RESOURCES (Akutagawa)
From: Cindy Akutagawa <cindy@ligo.caltech.edu>
- A Staffing Committee meeting was held Monday, November 9th.
Quality/Safety (Nolting)
LIGO Lab Safety:
Peter King:
- Administered the new basic laser safety materials to two staff members. The material seems was well received.
David Nolting:
- An All-Hands meeting on “General Safety Awareness” was held
this week at LLO. Many staff and visitors were present to learn how to
work safe while at the observatory.
- The “Laser Safety
Training for Certification & Recertification of LIGO Personnel -
M0900241-v3” is now complete and approved by LIGO management. The next
step is for the LSO’s to administer this training at their work sites.
This training program was the hard and detailed work of Peter King,
Bill Tyler, David Kinzel, Doug Cook and David Nolting; with support and
guidance by the LIGO Safety Steering Committee Members.
LIGO
Hanford
Observatory (LHO) and Interferometer Operations (Raab)
Summary of Activities at LIGO Hanford Observatory (compiled by M. Landry)
-
The 30% duty cycle was impacted by both microseism
on the weekend, and problems with the reflective memory (RFM) network
Tue/Wed. In between, BNS ranges improved to 17-18Mpc as the microseism
dropped precipitously.
- On Tuesday, we compiled a version
of the OMC-LSC handoff codes (om1 and lsc frontend). While the handoff
counter appears to work, some OMC whitening filters inexplicably
disappeared, so old codes were restored. Rolf is visiting LHO; he will
compile another version to test. Our V2 calibration is still held off
until after this code update. After frontend codes were restored, we
ran science locking for five hours, then had RFM failures and
difficulties re-locking for 48h. It is not completely clear that the code updates induced any RFM instability.
- Other
commissioning items: i) TCSY glitching was observed to be correlated
with transients in DARM and hardware fixes are being considered, ii)
the replacement of h1susepics with sole-remaining H2 spare h2iscepics
underscores our exposure. The CDS group will now scramble new machines
to act as spares for this aging hardware, and iii) we restored the
SoHold small-optic hold servo to MMT2, to tie it to it's cage, and will
do so for the SM mirror once we've had sufficient science-mode running.
Squeezer Update (D. Sigg, S. Dwyer)
- Still waiting for the remaining boards of the TTFSS and the
common mode board. Designed the slow controls system. Currently, we are
preparing to be able to lock the two lasers somewhere early December. A
block to mount the second NPRO was given to the shop for reproduction.
We still need to order some optics and opto-electronics as well.
CDS Hardware (R. McCarthy)
- Replaced a bad control panel for the Access system in the
LVEA. This panel controlled all table access in the LVEA and was having
becoming very unstable. With the replacement comes an upgrade to
Ethernet communication instead of modem. Should improve communication
reliability.
- Investigated problems with the TCS boxes.
Discovered a potential problem with powering the Flipper controllers
will need to modify these. This will help with reliability.
- Spent
many hours working on the Front End computers chasing RFM problems and
WFS issues. Replaced h1susepics with h2iscepics and Dave ended up
replacing h1lscl0 5565 RFM PMC card.
CDS software (D. Barker)
- Major work on recovering H1 from the RFM glitches which
started late tuesday evening. Two pieces of hardware were replaced
after being found defective.
- Tried the new OMC-LSC comms code on H1 during Tue maintenance, new code did not work on om1 and was taken out.
- fb0w filled the ldas raid disk over the weekend. Alarms have been installed to alert sysadmin if this happens in the future.
Outreach (D. Ingram)
- LHO closed its International Year event schedule with
Astronomy LIGO Style/Astronomía al Estilo "LIGO" on 11/7. Gerardo
Moreno, Armando Merlin and Andres Ramirez provided Spanish translation.
~140 guests of all ages toured the site and tinkered with exhibits and
activities.
LIGO
Livingston Observatory (LLO) and Interferometer
Operations (Giaime)
Enhanced LIGO and the S6 Run (Valera Frolov)
- The microseismic activity persisted last week as hurricane Ida landed on the Gulf coast. This perevented the science data taking most of the week. - The bottom mirror on the PSL periscope was replaced to mitigate the peak at 300 Hz. After the replacement the coherence around 300 Hz between the PSL/MC signal and DARM was reduced to insignificance. Another iteration of the mode matching into the MC was done. The mode matching was further improved by 05-1% to 94.6%. - The effect of HEPI on the corner Michelson interferometer was measured. It was found that HEPI introduces additional motion at 0.1-0.3 Hz. The HAM6 ISI performance was measured during the high microseismic condition.
LLO CDS (Keith Thorne)
CDS - Hardware
- PEM - Jeremy Birch fixed several accelerometer channels. The
BSC5Z channel was fixed by changing the amplifier channel. 6 bad
accelerometer channels in the LVEA were fixed by installing a new
ISOTRON signal conditioner. Next week he will swap out the
old, bad ISOTRON for repair.
- TCS - Carl investigated error
on TCSY chiller, on suggestion of tech rep. looked for and found a
loose connector on control panel circuit board. Will continue to
monitor to see if error reoccurs. He continued verification of TCS
electronics documentation.
- RM Test Rack - Carl finished installation of RM test rack electronics. AdvLigo - Carl received and began inventory and inspection of UIM chassiss.
CDS - Software
Operations
- Keith rebooted the master LDAP server which had locked up with an over-filled swap buffer.
- Keith added ilog accounts as needed.
- Keith
had to do additional maintenance on the FB0 frame disk. We now
suspect either a failing controller or bad fiber connection. A service
request was made to Sun on the maintenance contract and Keith is
working with them at present.
- Keith had to do a power-cycle
of the OMC front-end CPU to correct a high OMC->LSC RFM error seen
after a restart earlier. Of more concern is that the OMC DAQ showed a
failed (red) status earlier, prompting the restart. The RFM error count
has been added to the overview screen.
- Keith orders additional tape media and spare LCD monitors. Still awaiting an RMA to return an incorrect network switch spare.
Upgrades
- LDAP - We now have the slave LDAP server updated and
synchronized to the master, but have not yet gotten clients to
authenticate to the slave (so the master can be taken offline and
patched).
- End-stations isc software - Testing by the
calibration team showed that the new ISC front-end software had a large
timing difference (~40mu-sec) between the X and Y ends. This was
traced to a particular part of the source code, but Keith was unable to
build a working version with both the new ADC readout timing fix and
equal time delays. We have hence reverted to the early S6 code without
the ADC readout timing fix (but has better matched timing between X and
Y).
- Keith completed making updated versions of all
stand-alone and MEDM scripts to work simultaneously on Linux and
Solaris. Initial testing of the new AutoRun GUI code was started
by the operators.
- Still putting the Tape Backup software through its paces.
LLO Education and Outreach
(William Katzman)
- Conducted programs and tours for 4 school groups at LIGO, 1
school group away serving a total of approximately 350 students.
Two of these school groups figure in the new longitudinal grant funded
by the NSF through BRAF.
- Met with Tangible Science Portal
Team regarding the next steps in the deployment of the Tangible Science
Portal kiosk. We are now expecting to have the kiosk ready for
deployment at November’s Science Saturday.
- Scheduled several
spring professional development workshops including a joint workshop
with Louisiana Arts & Science Museum.
- Met with LA Board of Regents LIGO Science grant reviewers and participated in a day’s worth of the reviews.
- Agreed
to extend collaborations with the Exploratorium on a possible NSF grant
around making and tinkering projects, and Tulane University on a
possible NSF grant centering on visitor research at LLO SEC.
(Amber Stuver)
- Gave control room tours to ~100 students and gave a Q&A session to ~75 more.
- Collaborated
of final edits and changes needed to be made for the poster on LIGO and
gravitational waves I have been working with the APS with for a long
time. The tenative date of issue is the "April" APS Meeting/Winter AAPT
Meeting being held in Washington, DC in a few months.
- Doing
final preparations to conduct a survey of the FGSA membership regarding
their experiences in TA Training. The intermediate results of this will
result in an invited talk at the AAPT Winter Meeting and the full
results will be published as a report to the APS and the AAPT.
- Submitted a grant to the NSF with Lisa Szechter to study parent-child interactions in the SEC.
LIGO computing and network security
(Roddy)
Reported under General
Computing, see below
General computing and LDAS admin
(Giardina)
Reported under General
Computing, see below
Reported under LDAS System Administration, see below
Data analysis & computing
(Yakushin)
Storage/Condor/LDAS admin:
Reported under LDAS System Administration, see below
Data analysis:
Reported under Data
Analysis activities, see below
Mechanical and Optical Systems (Coyne)
See also Advanced
LIGO
Controls and Data Systems (Bork)
See Advanced
LIGO
40-Meter Interferometer (Adhikari)
- Testing has begun with the new controls hardware on the ETMY.
- Measurements
of the macroscopic length of the recycling cavities using an aux. laser
are now ongoing along with the full interferometer locking.
Thermal Noise Interferometer (Black)
- This week Greg made significant progress in understanding
two-path servos and has been able to stably lock his laser to an
asymmetric Michelson interferometer using feedback to both the PZT and
the thermoelectric controller (TEC). He also has gone through a
complete analysis of the phase difference between the photothermal
response of the coating and the substrate. Because of the finite
propagation speed through the mirror, these two are necessarily out of
phase by a certain amount, and no clear cancellation notch is expected.
This is somewhat disappointing and not what we expected when we did the
initial estimates of the effect, but it is not a show-stopper. There is
still a clear signature in the overall phase of the photothermal
response that will allow us to distinguish between positive and
negative values of dn/dT for the thermorefractive component.
- Akira
looked into the Gaussianity of his apparently anomalous data sets and
found no discernible difference between them and the others. Without
any obvious evidence of contamination, we are compelled to include them
in the analysis along with the more consistent data sets. This does not
significantly change our values for mechanical loss angles - we are
still able to distinguish between coating designs - but it does
increase the size of our error bars. The conclusions of the measurement
(and the paper) are essentially unchanged.
LASTI (Mittleman)
Monolithic
- A new motor assembly has been shipped from Glasgow for fix
the broken one on the fiber strength tester. It turned out to be not
quite identical to the previous one, so Myron has made some
modifications and it is now installed.
ISI
- The Anti-Aliasing filter chassis have been reinstalled and
are running. We have been battling computer problems most of the week.
Alex found that there were multiple copies of awgptmon running on the
ISI machine which were fighting with each other and ruining the
excitation signal. The second problem seems to involve some kind of
data corruption that Alex is looking at now.
CIT Science Group (Weinstein)
__________
Antony Searle
- Debugging Omega pipeline detection statistic performance.
__________
Drew Keppel
- Improving the presentation of a new likelihood statistic for use in CBC pipelines.
- Investigating how to merge the two existing CBC post-processing pipelines.
__________
P. Ajith
- Continuing to work on the physical instrumental veto. Preparing a presentation for the DetChar/Commissioning telecons.
- Working with Drew on the massive-graviton paper writing.
__________
Chad Hanna
- I have been preparing an article for NRDA this week mostly.
__________
Cristina Valeria Torres
- Work on debugging the makeChecklistWiki.py codes which will be used for S6 searches and later.
- Revising draft of article that I've written which will appear in Spring Newsletter of APS Forum on Education.
__________
Vladimir Dergachev
- Worked with Joe on coherent followup.
- Further optimization of loosely coherent code.
- Accuracy and efficiency adjustment of loosely coherent code
__________
Peter Kalmus
- H2 h(t) data for the A5 SGR search is complete.
- GEO segment list for A5 SGR search is complete.
- Calibration uncertainty information from GEO and H2 are both in progress.
- Continued preparations for running A5 SGR searches.
__________
Joseph Betzwieser
- Examining the efficiency of the PowerFlux followup pipeline on software injections.
__________
Gregory Mendell
__________
Pinkesh Patel
- I have started the Calvera search on Atlas, but have run
into I/O problems with the current I/O code not doing the job
efficiently. With the help of Vladimir, I am writing a replacement for
the old I/O code, which will do the job in a fraction of the time for
me.
- I am finishing up the long neglected resampling paper, which I hope to have finished by thanksgiving.
__________
Amber L. Stuver
- Working with the burst group to determine what additional
waveforms and polarizations (e.g. circular) will be needed to expand
the science reach of the S6 all-sky paper.
- Preparing a test set of MDC simulating waveforms originating from the galactic center for the burst directional search.
- Traveled
to and attended the APS Council Meeting in Atlanta. I was also
elected to the APS Executive Board by the Council at this meeting.
__________
Anand Sengupta
- S6 tuning runs and preparing a web page regarding this.
__________
Kari Hodge
- Working on the post processing pipeline and MVSC.
__________
Kipp Cannon
- Spent some time working with Kari Hodge and Drew Keppel on implementing multi-variate ranking statistics for CBC searches.
__________
Stephen Privitera
- Updated S5 inspiral range study to include corrections for version 4 DC calibration.
- Worked to hunt down the source of an apparent bug in the bank chisquare test.
- Worked to understand a possible bug in the calibration simulation code.
Laboratory Computing (Anderson)
LDAS Software Systems (Maros)
- The 1.16.3 release of LDAS has been deployed to CIT,
Hanford and Livingston. There appears to be an increase in latency that
is being investigated. Since the upgrade, only a single core dump has
been observed and it is being analyzed.
LDAS System Administration (Anderson)
Caltech
(Dan Kozak)
- Migration of S5 L1s from 9940 to T10KB tape is complete,
with the exception of 5 tapes that mistakenly have L1 data mixed with
other data types. Started working on setting up S5 L0 migration.
- Md5sums of files already migrated to confirm their integrity still running.
- Shipped tapes to sites (5 boxes of 18 tapes for LHO and 4 boxes of 18 tapes for LLO).
- Currently 162 9940 tapes are in the state "fully migrated, data needs to be md5sum'd" and 281 tapes are ready to ship.
- Set up shared QFS mount of /home3 on morbo.
- Fixed some damaged files (per Scott Koranda) so they could be transferred to Syracuse.
- Worked with Dan M. at LHO on clearing up error state tapes so that he could stage back data to be put into the cluster.
- Patched a bunch of servers and upgraded the home1 6140 firmware to the latest 7.x release.
- Worked on getting SMF startup of Igor's rsync scripts to wait for /archive to be mounted (ongoing).
- Worked with Keith Thorne to try to sort out the problems he's having with the bkup_frames 3511.
- Retrieved some deleted files for Emma Robinson (via ZFS snapshot).
(Phil Ehrens)
- Worked on new safety-web codebase - partial redesign of 3-column page model.
- Worked on TAR codebase - wrote JavaScript for automatic account entry cloning.
- My desktop computer failed!! Hardware failure of Tarazed. Replaced with new Dell 537 purchased by Larry.
- Discussed office move with soon-to-be-officemates.
(Josh Abadie)
- Monitored and managed the cluster.
- Attempted to solve user problems.
- Worked on a mediawiki plugin which interfaces with myligo.
- Replaced a few bad pieces of hardware.
- Worked with sun rep to get warranty recognized.
MIT
(Fred Donovan)
- Finishing up node ks with new /usr1/frame filesystems;
installed demo nagios (icinga) with nrpe plugins (monitor condor, /usr1
/usr1/frame disks), puppet config working out well.
Livingston
(Igor Yakushin)
- Removed VDT sqlite from ldas-grid and ldas-pcdev1.
- Replacing tape robot's hand fixed the problem with archiving.
- Having trouble with SUN recognizing serial numbers of the nodes (3 cases that I opened last week are still unresolved).
- Installed 10G card into thumper1 and reconfigured it to export $HOME to the nodes via 10G link to the central switch.
(Doug Lormand)
- Brought Dwayne's LDAS cluster monitor back online, with
assistance from Dwayne. I am still working on the graphing portion of
the cluster monitor, but I expect it to be up no later than early next
week.
Hanford
(Greg Mendell)
- Tracked down problems and restarted Disk2Disk and LDAS hoft
generation at LHO and LLO, after filesystem/communication problems
caused these to crash or hang.
- Since my last report, I
worked with contractors to have a bad fan motor in one of the LDAS HVAC
condenser units replaced, and I worked with Scott Koranda to fix a gap
in the transfer of data due to the end of daylight savings time.
(Dan Moraru)
- Configured nodes to shut down if ambient temperature exceeds 50C.
- Tended to the L700 robot, removing tapes stuck in drives and adding tapes as necessary.
- Cleared
"media error" flags from tapes with data that needs to be staged onto
the nodes, verified that data is readable, and resumed staging.
- Updated
kernels on all Linux head nodes and either rebooted or set
vm.mmap_min_addr to prevent local root exploit until next reboot.
General Computing (Wallace)
MIT
(Fred)
- Dealt with mail issues (sluggish) -- due to spam filter firewall (removed again).
- Upgraded dovecot imap/pop server on ligo.
- Ordering panda server; -About finished transitioning linux backups to rdiff-backup.
- Staging kerberos, ldap and new imap/pop servers.
Livingston
(Dwayne)
- Danny installed mag-lock on machine shop door. I modified the software so that the door is fail-safe and on the 6-6 schedule.
- Still making rounds patching various servers.
- Had
meeting to discuss how to proceed with ICS. Commissioned an ICS-USERS
group, to hold weekly meetings and discuss bugs/feature requests.
- Testing new release of JIRA on Appfire test server has uncovered more new bugs than old bugs that were fixed.
- Had an issue with Solidworks crashing on a laptop, killed a couple runaway tasks in task manager and all was well.
- Assisted a couple users with plotter install.
- Patching
CentOS x64 with latest updates breaks the autofs, thus causing problems
with LIGO.ORG shell account /home directory mounting. Both Jonathan and
I have experienced the problem and have yet to find a solution.
- Assisted Doug with reviving cluster_mon on the new cluster.
- Attended a few other meetings.
- Worked a couple small procurement items.
- Numerous usual/unusual user support requests.
Hanford
(Jonathan)
- Fixed an ldap connectivity issue from a solaris machine.
This ended up coming down to a firewall change. Changes placed in
cfengine.
- Tightened access lists on the LIGO.ORG translucent proxy.
- More
testing on a new mail setup. Mail now goes where it is expected.
Kerberos support is working. Initial LDAP testing underway. LDAP
working with Dovecot, need to tie into postfix still.
- Patched linux boxes. Updating to CentOS 5.4. KDC's excepted.
- User support Mary Kurts, Jennie Murdock - oracle and invoice systems.
- Setup a new computer to replace an old public computer.
- Placed orders for aLIGO PM, misc spare parts for operations.
- Backporting cross realm krb5 authentication from Dovecot 1.2.7 to 1.0.7 for CentOS 5.
- Replaced a hub to resolve network issues with redoubt.ligo-wa...
- Routine spam filter and dhcp maintenance.
Caltech
(Christian)
- Re-imaged laptop that was returned to the loaner pull this week.
- Riccardo
Desalvo - working with National instruments support to resolve some
issues that riccardo is having with his usb data acquisition card.
- Continued testing Windows 7 this week.
- Other misc.: Continued onsite software/phone support.
(Veronica)
- Maintenance of the websites for the upcoming L-V meeting and NSF review.
- Ongoing work on the DCC migration.
- An accessibility audit of the LSC website.
- Updates of the LSC/LIGO related webpages.
(Mike)
- Trouble shot a linux server that has a problem loading the
most recent kernel update. After many configuration changes in the
BIOS, and trouble shooting the the different configuration files. It
looks the X4600 is having issues with this CENTOS update. Fixed a
NISPLUS issue on this server. This is still an on going project.
- Worked with Larry installing a network switch over in downs.
- Prof. Barish: Backed up his laptop. Updated his x31 IBM laptop, with current windows updates, and loaded his email on this unit as well. I also configured a At&t wireless card to use on this laptop. -Ordered additional equipment and software, for GC.
- Loaded a new Engineering workstation, for a new hire. -Working on loading another Engineering workstation.
- Other user support, and sysadmin tasks.
(Melody)
- DCC: User support: granting access, removing files, answered
questions Added the Lab_Security group. Started reworking the script
which updates the DCC users list from the myLIGO roster. Participated
in the SCAT call.
- myLIGO: An updated list of LIGO Lab
employees and forwarding email addresses were retrieved from the roster
and sent to Abe (for mailing purposes). Addressed some RT issues.
(Larry)
- Worked a number of procurement related issues. Helped Mike
on a number of purchase items, most for the engineering workstations.
Resolved a couple of license issues. One of the s/w companies was
confusing support contracts among the Observatories and CIT. That issue
appears to be corrected at this time. Ordered a number of items to
support the office moves. Ordered a few items to test for the
conference room setup. Renewed Matlab and Labview licenses. Working on
specs for new workstation and network related purchases. Distributed a
number of ordered items that were received in the past week. -Assisted
a few people in moving their offices as well as some logistic work for
next-weeks office move. Mike and I installed the temporary edge switch
for the second floor of Downs. Thanks to Minerva from SRL we were able
to get a fiber path to that location. Working on a number of networking
issues for the moves.
- Assisted in setting up some new web-pages and getting a few old ones cleaned off.
- Modified a couple of user accounts. -Installed/installing Centos updates.
- Some assistance to Shannon on ligo.org related modifications.
- Attended a number of meetings.
- Clearing of spam filters and updating some of the files on the filter box.
- More logistical work for the conferences and some minor testing on different EVO setups.
Distributed (Grid) Computing R&D (Blackburn)
Grid Application Development
Einstein@Home on the OSG:
- Continued production running on 17 OSG production resources.
- Average
Credit Rating is down to 600K from last week's 730K. Grid resources for
opportunistic computing jobs is down due to policy changes in
preparation for LHC turn-on.
- Added new recovery mechanisms to the code to support newly seen errors.
Binary Inspiral Application on Grids
- Tested new version of the OSG Storage Discovery Tools.
- Filed GOC ticket regarding errors using srmcp/srm-copy.
- Have
now transferred about 50% of data to the OSG production site
"Firefly" for running large binary inspiral workflows using SRM there.
- Added support for md5sum checks of data transferred to OSG SRM storage facilities.
Open Science Grid Integration & Validation Testbed
- Discussed GsiFtpStandAlone with Iwona and Jim.
Open Science Grid Documentation Project:
- Working on the global architecture picture of the OSG using
subversion. Working on architecture pictures for OSG components
such as the SE and the CE. Working on review process picture, also
in subversion.
- Reviewing dcache Storage System description documentation provided by Tanya Levshina.
- Developing
a review process for documentation and Twiki code with Jim Weichel.
Testing this review process in a new ITB Twiki server.
- Developing pluggin gallery to showcase Twiki plugins.
- Working with Google Chart API to dynamically create chards for Twiki.
Grid Management
- Organized and ran monthly OSG Council Telecon. Posted minutes on the OSG Council Twiki website.
- Identified the dates for the VOSS workshop to be held here at Caltech and reserved conference room for the two day meeting.
- Polled
OSG Council for planned participation in the SC09 Conference in
Portland Oregon. Provided OSG staff with results for preparing a
strategy meeting at SC09.
- Continued to collect publication results that benefited from the OSG from the OSG stakeholders and Council.
- Issued
a recommendation to the CompComm as the chair of the SCAT to quickly
move away from ISPCA for certificates. Recommendation included
several alternatives.
- Advised the CompComm on findings from evaluation of security of the DCC infrastructure.
- Supported LSC requests for DOE Grids certificates and LDG accounts.
EVO enhancements for LIGO/LSC
- Reviewed and discussed the written responses for the EVO enhancements request that was presented to the EVO developers last week. Will have an EVO meeting later this week to discuss further.
- Gathering EVO skill sets from EVO developers for job description.
Advanced LIGO and Supporting R&D (Shoemaker)
Advanced LIGO Management
Procurements
For Jacqueline Champagnie and Gina Salone
- UK Optics; Heraeus Change Order-Processing.
- SI 144; Storage Containers-Waiting on revised bid.
- ARES Contract Modification-Processing with R. Arvizu.
- Uploading Procurement Events and coordinating documents to date into DCC.
For Ruth Winstead
- Managed and processed invoices through Webnow.
- Requisition in process for Alex Ivanov.
- Processed req for KLA Tencor.
- Delivered invoices to Procurement Services (Guillermo).
- Resolve issues for end users regarding receipt of items and payment of invoices.
- Continued posting of packing slips and invoices to DCC
Advanced LIGO
Systems
AdL Systems
Dennis Coyne
<coyne@ligo.caltech.edu>, Peter Fritschel
<pf@ligo.mit.edu>, Calum Torrie<ctorrie@ligo.caltech.edu>,
Matt Evans <mevans@ligo.mit.edu>, Ed Chavez
<chavez_j@ligo.caltech.edu>, Bob Taylor
<taylor_r@ligo.caltech.edu>, Mike Smith
<smith@ligo.caltech.edu>, Mike Zucker <mike@ligo.mit.edu>,
Hiroaki Yamamoto <hiro@ligo.caltech.edu>, Kurt Buckland
<buckland_k@ligo.caltech.edu> see the Adv. LIGO Systems wiki
Design/Readiness Reviews: For a list of reviews, see the main AdL wiki page
- Reviews currently underway:
- Optical Lever Design Requirements Review & Conceptual Design Review (DRR/CDR): nearing completion (Mike L. chair)
- IO FDR has started (Eric G. chair)
- BSC-ISI FDR has started (David S. chair)
- E/ITM Ear FDR/FRR has started (Gari B. chair)
- HSTS FDR has started (David S. chair)
- UK Triple & ESD electronics continues (Vern S. chair)
- Impending reviews currently:
- Systems FDR: documents ready soon
- Viewports PDR: documents ready soon
Procurement Techncial Reviews: see the procurement wiki
- Nothing significant to report.
Technical Review Board (TRB): see the TRB log
- Nothing significant to report.
UHV & Vacuum Review Board (VRB): see the VRB log
- Outgassing Load (Mike Z.) With input from a number of the
subsystems on surface area by material type, Mike has compiled a
*preliminary* estimate of the total outgassing load for the vacuum
system and estimated base pressures (see E0900398).
Much refinement is needed, especialy for outgassing rates of the
polymers used to insulate the wiring and the addition of missing
instrument assemblies (e.g. Ignacio Romero, has estimated the surface
area of the baffles and beam dumps inside the aLIGO IFO which is yet to
be included.).
- RGA scans are ready on the EP30-2 Epoxy.
- I cleaned
the quad photo diodes that Chub gave me for cavity testing, using
the Soxlet Extractor and freon 113. They are being RGA scanned
now. I will have them ready for cavity 2, by the time the turbo
pump returns.
- I met with Mick Flanigan on JIRA problems.
- I met with Tom Gentry and we talked about FTIR.
- I finished baking 150 Actuator Pole pieces and 30 Coil Bobbins for QNA.
- I
have installed the seagull Defused Reflectance Attachment, in the
Nicolet Spectrometer. I am preparing reference samples for
FTIR calibration. I have received the KBR power and will bake it
out for the sample preparation. It must be baked at 500F or 260C
to make sure the water content in it is as low as possible.
- Writing the SOP and doing a Hazard Analysis on the FTIR Sampling Process.
- I have received some ring heater small parts from Craig Conley for cleaning, baking and RGA test.
- Optical Contamination Cavity Testing: (Bob T., Liyuan)
- I have installed the EP30-2 samples in Cavity 1 and have began taking data.
- Finished
installing Cavity 3 Optic tube suspension in the OTF. Worked on
electrical connections and electronics for Cavity3 in the OTF.
- Cavity
2 turbo pump failed in the OTF. I have disconnected it and shipped
it out for repair. It should be back next week.
Configuration Control & Documentation:
- Nothing significant to report,
Design/Planning:
- Optical Layout for H2 (Mike S.) Mike is continuing to update
the H2 layout based on the latest information from Luke Williams for
the IO FDR, adding optical lever beams and defining the viewports, etc.
- Optical Layout for H1 (Dennis C.) Dennis will soon post to
the DCC a revision to the H1 Zemax layout including an eDrawing version
depicting all of the various optical beams (see D0901920-v4).
- Cake
Tins (aka COC containers) (Calum T.) 1 CP cake tin prepared for COC and
sent to vendor. RFQ / SOW etc ... prepared and submitted for signature.
- Metal Components for use in Vacuum (Calum T., Ken Mailand,
Dennis C.) Created a specification/guide for metal components
intended for use in the Adv LIGO Vacuum System, LIGO-E0900364-v1.
- Engineering
Orientation Package (Calum T.) The following wiki page has been
created to act as an engineering package for new employees within the
opto-mechanical groups in advanced LIGO. It will also hopefully be a
useful index for existing staff.
https://dcc.ligo.org/wiki/index.php/Engineering_for_LIGO
- Opto-Mechanics
Meeting (Calum T.) We had a good discussion at the opto-mechanical
meeting 11/5. Actions included baffle and aux. beam information from
Luke to Ed. Ed to look at dog clamps and struts in HAM2/8.
Fabrice to draft note on fiducials, centre holes that will be added to
HAM and BSC tables to aid with initial alignment.
- Damping
Struts (Calum T.) We held a damping strutt meeting with Caltech, MIT
and Stanford. Updates were given from the 3 groups.
- Integrated
Layout Drawings (Ed C.) I created Rev v3 in the DCC for the following
chambers: BSC1, 2, 3, 9 & 10 for H1, BSC4, 5, 6, 7 & 8 for H2,
HAM 3, 4 & 5 for H1, HAM8 for H2 (including all small fixed
optic mounts for relaying read-out beams). In each case a pdf file, an
eDrawing (with the measure option on) and a jpeg have been filed.
Related document links were added in accordance with the BOM and the
"punch list" was updated. I also updated the components from the latest
Coord’s I got from Luke. We got the latest model updated for
BSC table (D0901182). This will be used in our Top Level Chamber
Assemblies, replacing the existing ASI-20007979.
Interfaces: see the RODA status page and the Interface Control page.
- Nothing significant to report.
Modeling and Simulation
From: Hiroaki Yamamoto hiro@ligo.caltech.edu
- In Japan for LCGT meeting.
Safety
From: David Nolting dnolting@ligo-la.caltech.edu
- The AdL Safety Engineer was charged with the responsibility
of assembling comments from Gregg Harry and Peter King for the IO FDR,
regarding the AdL IOO Faraday Isolator Assembly Procedures and the IO
Hazard Analysis Matrix documents. Comments were returned to the
IO team leader for review during the next scheduled FDR.
Quality Assurance
From: Mick Flanigan flanigan_m@ligo-wa.caltech.edu
- On travel for COC Coatings.
Facilities Modifications and Preparations
From: John Worden <worden_j@ligo-wa.caltech.edu>
FMP:
- LHO - Contractor activities are coming to a close with
electrical and trim work underway in the fiber pulling lab. A second
contractor has finished the duct work in the warehouse - connecting the
parts washer and bake ovens to the building exhaust. The new vacuum
bake oven is expected to be loaded with it's first load of parts Friday
or Monday so we will then have two ovens in operation.
- LLO
- Contractor activities are complete. The last item completed was to
reroute some HVAC ductwork to better supply the clean rooms in the
triple assembly area. These clean rooms reach very near the ceiling and
were blocking some air flow in the room. Crews are getting ready to
accept the first large ISI plates for baking.
Seismic Isolation
From: Ken Mason kmason@ligo.mit.edu
aLIGO Project Activities
SEI activities and progress at LHO HEPI -- Jim Warner, Eric Allwine, Hugh Radkins
- Pump Stations -- Taking care of the last few leaks. Reservoir Parts in production.
- Actuators -- On-hand inspections proceeding~1/3 done. Expect next batch from Kineoptics mid-December.
- Machined Parts for LLO HAM to LHO BSC conversion awaiting approval Cog-Eng.
- Kaman
Sensors -- Testing completed, ready to talk to Cog-Sci/Vendor re
disposition. Housings--10 BSC Assemblies to go--on track fro Nov
completion.
ISI:
- HAM -- Receiving/Inventorying/Prep for cleaning Fasteners!
SEI Electronics Design and Fabrication:
- Sam and I installed the cables for the Inductive Position
Sensors in the Pier Interfaces that he has finished assembling. He will
put the cables in all the new ones he does.
- I've come up
with a prototype schematic for the pressure sensor readback electronics
for the HAM GS-13 Interface. I'm going to cut a board after the move,
and make sure it works well.
- The T240s that were damaged
have been sent back to Nanometrics, and they will confirm their
suspicions and fix them. I have the USB-to-RS232 converters and cables,
and am going to head up to Stanford again sometime soon to make them
work.
- Everything for the GS-13 In-Pod cable will be in next
week. We can make 25 cables for the short haul, then make the rest in a
few weeks.
- Emery has altered his GS-13 connector board. He
has placed underneath, so the GS-13 can be flipped over to remove the
cover, without resting on the connector. It is going out today for
board production, and parts ordering.
- Sam has stuffed one chassis worth of Mohana's Coil Driver boards, and she is testing it now. Everything seems to be going fine. ~Ben
Single Stage HAM Procurement and Build:
- Bids have been received for the HAM support tubes. A bid evaluation will be done next week.
- We
have received 1 of each part from Lavallee Machine and have hired an
independant QA service to inspect the parts. This will happen early
next week.
- Lavallee has completed all parts for the first three HAM ISI units.
- Astropak has received three sets of large plates for cleaning. They will be shipped to LLO in approximately 2 weeks.
Two Stage BSC Design and Procurement:
- Testing: anti-aliasing boxes have been updated for the new
sampling frequencies (4k). The problem causing instabilities has been
identified: one "wrong" damping filters were used used while converting
all the numeric filters from 2k to 4k.
- Presentation of the BSC FDR to the review committe scheduled for this Friday at 8:00 am Pacific. Design: we continue making drawings and assembly documentation for aLIGO. ~Fabrice
Suspensions
From Janeen Romie and Norna Robertson (romie_j@ligo-la.caltech.edu, nroberts@ligo.caltech.edu)
Operations Work
HLTS:
- Partial assembly of the prototype was done to allow the alignment work described below
HSTS:
- Final design review is ongoing. One of the HSTS prototypes was in use for the alignment work described below.
- Discussions
have taken place with SEI and Systems about timing and method of
changing the position of the quad attached to the BSC-ISI at LASTI to
allow the SEI team to investigate the response of the ISI to an offset
of the centre of gravity of the suspension. The articulated arm will be
used and the move will take place in spring.
Project Work
- The SUS team at LLO plus Betsy and Norna worked with members
of the IO group to test alignment procedures for the HAM small and
large triples. The IO group provided prototype parts for moving the
suspensions in translation and rotation (yaw). These parts acted on the
base of the structures. The tests were successful. IO will write up a
report.
- Modeling of ESD cables on the quad continued. So
far all but the stiffest candidate cable type have been shown to be
acceptable. The stiffest one is also probably likely to be OK, however
not yet confirmed. A mode of the stiffest type is still computing ( the
run time is near 24 hours).
- The UK team have posted
documentation for a fabrication readiness review for the ears which are
silicate bonded to the penultimate and test masses.
- Work on the RFQ for the AOSEM head was carried out.
Prestabilized
Laser
From: Peter King <pking@ligo.caltech.edu>
Operations
- The reference cavity and analyser cavities have resonated
simultaneously. Work is being done on improving locking of both
cavities.
Project
- After running unattended for a month, the output power of
the laser was reduced from 220 W to 210 W. Other than that, the laser
worked well.
- Inquiries were made with Jenoptik about the
degradation of the output power of the pump laser diodes installed in
the LHO eLIGO Laser. They agreed that this set of pump laser diodes
exhibits higher than normal degradation and have agreed to provide a
replacement set on a time scale yet to be decided. The pump laser
diodes for the LLO laser, on the other hand, are performing to
expectation.
- Work has started, in earnest, on getting materials ready for the final design review.
Input Optics
From: Rodica Martin <rmartin@phys.ufl.edu>
ELIGO (LLO)
- We are writing an eLIGO IO paper (Kate) Also, we worked on replacing the bottom PSL periscope mirror mount which removed the the 306 Hz peak from DARM. (Kate, David F)
Advanced LIGO R&D
- We are testing suspension alignment fixtures with the HSTS and HLTS at LLO. (Luke, Giacomo and David T)
Advanced LIGO Acquisition
- We are getting follow up clarifications from polishing vendors regarding their proposals, to better understand their capabilities in order to take a decision to award the polishing for small RMs. (Rodica, Dave R, David T)
- Also, we are negotiating with a proposer for coatings for the IMC and SM substrates. (David T, Dave R, Rodica)
- We are examining the inspection data received from the polishing vendor for the mode cleaner curved mirrors. (Rodica)
Core Optics
From: GariLynn Billingsley <Billingsley_G@ligo.caltech.edu>
- Liyuan Zhang and Margot Phelps are traveling.
Rand Dannenberg
- Meeting at LMA AdL TM Coating Kick-off finished. Many action items. Catch-up on CSIRO action items.
- Essentially, fully engaged constantly in the running of these contracts.
GariLynn Billingsley
- Tinsley reports completion of all F-PR3s, with two PR3s due to complete around Nov 17th.
- Due
to the limited availability of optic containers, the existing
containers will be used to ferry optics. LIGO will need to develop the
capability to store the optics at Caltech securely without caketins. We
have a concept photo from ASML, which should be inexpensive to
implement.
- A vendor has been selected for negotiations in supplying a large aperture interferometer for characterization of aLIGO optics.
- Completion of the change order for the final two penultimate masses is imminent.
Kickoff Meeting at LMA:
- We have agreed with LMA that there should be two test masses
per run, giving us 5 sets of matched pair ITMs. The ETM matching is not
critical, but will follow the same process for simplicity. This may
change the delivery schedule, but should not impact COC first
deliveries.
- LMA is in possession of some Suprasil 3001
samples, since they have a vested interest in annealing and absorption,
they will run an experiment to see if a relevant anneal will change the
absorption of the substrate material.
Auxiliary Optics
From: Michael Smith <smith@ligo.caltech.edu> Subject: SLC & SYS weekly report 11/12/09
ADLIGO
Work Under Project Budget
OPTICAL LAYOUT:
- Mike is continuing to update the H2 layout: adding optical lever beams and defining the viewports, etc.
Work Under Operations Budget
- Heidy Kelman, a new designer/draftsperson for SLC, has accepted our offer and will report to work next week.
SLC BAFFLES AND BEAM DUMPS MANIFOLD/CRYO BAFFL:
- Ignacio is in the process of revising the conceptual SW layout into a preliminary design model.
WIDE ANGLE SCATTER BAFFLE:
- Mike added the arm cavity baffles to the H2 ZEMAX layout and
made a preliminary layout of an alternative wide angle scatter baffle
that mounts to the inside walls of the BSC chambers.
OUTPUT FARADAY ISOLATOR:
- Virginio and Niem are in the process of testing the Output Faraday Isolator suspension prototype.
VIEWPORT:
- Mike is in the process of checking all the optical lever
beams in H2, and defining the viewports in the new mode cleaner beam
tube and the output beam tube.
From: Eric Gustafson <egustafs@ligo.caltech.edu> Subject: AOS Weekly
AOS TransMon Group - Sam Waldman, Matt Evans, Jay Heefner, Mike Smith and Ken Mailand
- The TransMon_SUS design is in progress, with a Zmax table
optics layout provided by Sam Waldman, Ken Mailand has converted the
layout to a Solid Works assembly showing the Telescope kinematically
attached to the TransMon optics table. Mailand began the suspension
assembly model and is combining it with the telescope and optics table.
When this assembly is complete, it will give Matt Evans the information
he needs to start work on the suspension dynamics model. Mailand has
begun mechanical design work on the suspension system.
- The
Telescope primary and secondary off-axis Parabolic Element
Specifications are complete ( E0900347 & E0900349 ) and an RFQ has
been sent to two potential vendors, both are supplying quotes.
Optical Lever - Tara Chalermsongsak, Eric Black and Riccardo DeSalvo
- This week Cheryl Vorvic produced a calibration of the
existing optical levers, in preparation for data mining to establish a
performance baseline. Adhikari pointed out a better way to calibration
at the 40- meter optical levers that reduces the effects of
nonlinearity in the measurement. Tara continues to hunt for the
underlying physical causes of long-term drifts. Documentation is being
revised in response to the Review Committee questions as part of the
Design Requirements Review and the Conceptual Design Review.
Thermal Compensation System - Aidan Brooks and Phil Willems
Enhanced LIGO
- Occasional glitches (4 or 5 per day) on TCS CO2 output power
have been causing a reduction in NS-NS range at LHO. We believe they
are linked to the ISS output to the AOM driver going negative which can
cause the ISS loop to become temporarily unstable. A fix for the
problem has been to clamp the ISS output with a diode in series to
prevent the voltage going negative. The results of this are still to be
determined.
Advanced LIGO
- The University of Florida group have performed initial test
on a new Watlow heater (a potential new ring heater for TCS). They were
looking at the uniformity of the thermal profile. At Caltech
preparations are being made to move into the new larger TCS lab in
Bridge.
Control and Data Systems
From: Vern Sandberg <sandberg@ligo-wa.caltech.edu>
Please note that from today on, the CDS components that apply to the
other aLIGO sub-systems and site reports will be reported in those
sections, with the objective of ensuring that the subsystems sections
represent their complete scope.
DAQ:
- Wilson House move to Downs is underway.
- Development of documentation for procurement review in December.
- Rolf at LHO this week to advance DAQ test stand for a multi-computer load simulation.
Diagnostics:
- Continued work on foton and code documentation.
For additional
information about this report, contact Albert Lazzarini