The Project Control Meeting
Agenda for Monday November 2, 1998 will be:
(Meeting time: 10:30 am Pacific Time)
Close Out Debrief NSF Review October 29, 1998
Don Hartill - "...Nice to be able to kick
the tires on a new car. The
enthusiasm demonstrated by the people in
Hanford will make it happen..."
Summary Recommendations
1) LIGO is to be congratulated on a successful
start of the installation
here at Hanford.
2) LIGO is to be commended on the successful
completion of the conventional
construction and the installation of the
vacuum system elements of both
observatories and the successful bakeout
of the first 2-km section of beam
tube at Hanford.
3) The committee notes the successful start
of the diverse LIGO Advanced
R&D program.
4) The LSC and LIGO should organize a series
of beginning-to-end
infrastructure and data analysis software
validation tests.
5) The LIGO Director and the LSC Spokesman
must find a way to provide
validated physics analysis software for
the collaboration and exercise it
through 4).
6) The LSC Spokesman should assure that
the constraints inherent in the
computing model adopted by the LIGO Laboratory
are well understood by the LSC.
7) The operations plan for the central LIGO
computing facility, and a
description of CACR's plans for the support
of the facility should be
presented at the next review.
Next meeting scheduled at LIVINGSTON, April 27-29, 1999.
As is evident in these items, the Committee is pleased with the progress in constructing LIGO and is now focusing more attention on the development of our analysis and modeling capabilities. - GHS
General Items:
--------------
(Fred Raab)
We have been busy keeping work moving along, hosting the NSF review
and
hosting the Oversight Committee. Joshua Myers joined the LHO team this
week, assisting with Electical/Electronics engineering duties. Joshua
graduated this year from WSU, Pullman with a BSEE. During his stay
at
WSU he cofounded a robotics club and he will hopefully regal us with
lunchtime stories of the tough world of national robotics competition.
The large volume of detector materials that keep arriving were
stressing our meager resources and increasingly diverting our skilled
detector and operations people to craning and other other support
operations. To relieve this crush, we have brought in an additional
person, Mark Roche, to support interferometer installation tasks.
A very successful tour was held for the NSF visiting committee. The
committee found the physical hardware quite impressive. The enthusiasm
of the Hanford staff and our visiting installation teams was much in
evidence and deeply impressed the committee.
Front Office:
-------------
(J. Berry)
The past two weeks have been really busy in the front office. Last week
everyone received their P-Cards and have been inquiring on how to
log-on, and get started. I have helped with several people up here,
and
things seem to be running rather smoothly on the P-Card Front so far.
I have made a few reconciliations without many problems.
Things have been really busy with the NSF Review happening here, but
oddly enough I have also been able to get caught up on some paper work
(Thanks to Liz and Terri for helping!). As far as paying invoices and
POs, I have sent over 130 invoices out
to Dorothy in the last 10 days.
I hope to get out another 30 or so tomorrow. I have been paying a lot
of the 'regular' monthly bills on my P-Card. The average amount of
invoices that we receive (strictly by mail) is about 60 a week. We
have
also been receiving several statements that need to be verified, and
then the usual stuff (magazines, letters, etc.). We are also receiving
and distributing (back and forth) the submittals and RFI's for the
new
LIGO staging building and the LIGO water modifications.
Thanks everyone for being patient with Liz and I this week. We feel
that things went pretty smoothly for such a large crowd, and we
couldn't have done it without your help!!
Seismic Isolation Installation:
-------------------------------
(C. Gray, H. Radkins)
LHO: Most activities this week have been in support of the HAM
installation effort. A problem with the scissors tables on HAM 7 was
uncovered and traced back to the manufacturer; they are correcting
their ways. The crossbeams on HAM 7 are installed and connected to
the
support tubes. All the fixturing was then moved to HAM 9 for the next
installation. A Bellows Guard was tried out on HAM7 and looks to offer
desired protection for Bellows. Larry Jones is going to have more made
for all the HAMs and BSCs. Work on HAM9 has begun. Doors are removed
and Support Tubes, Support Table, and Bellows are ready for initial
installation today.
(GHS note: Thanks to Phil, the promised HAM9 work
is shown below. Can you identify the bunny suited members of LIGO?)
With help from visitors and some new Optics Plates, adapter plates are
now aligned on all the 2K HAMs and we are starting on the 4K.
Apollo modified the BSC Pier Positioning Jig to help clear some of the
BSC framework; this will allow us to locate the Piers as required and
not be a risk to the chamber. Additionally, Apollo has completed the
drilling for, and embedding of, anchor bolts throughout LHO with only
one hit item.
Also, the floors are all roughened for grout adherence. With just a
couple areas still needed for cable tray installation, this clears
the
way for BSC Pier positioning and grouting for LHO.
HYTEC: HYTEC pulled their four airbearings for inspection and
found
'scars'--they are being sent back to Specialty Components. This is
possibly the source of the 'stiction' that was occuring. The reason
is
likely bad air. All the piers have been grouted for the BSC 1st article
and set up continues for the dynamic tests.
Optics & Lasers:
----------------
(D. Cook)
I spent time this week sponsoring a Standard Operating Procedure for
the 700mWatt NPRO laser to able it to be used in the Optics Lab and
completing the new laser safety power circuits etc. I also spent time
with various visitors that were here for the NSF review, walking them
the Optics and Vacuum Prep Labs. Visitors from Livingston had a chance
to preview how we resolved things like water purification, safety
issues, optic cleaning processes and equipment, vacuum baking of
components, reviewing SOS suspended optics, the PSL installation,
detector installations which will give them a "heads-up" on what to
expect. I was able to lend some hands-on assistance to some of our
visiting staff who were doing double duty this week. The NSF review
occupied center stage for most.
Computing Systems:
------------------
(C. Patton)
For the NSF Review, I have added several new user accounts, provided
temporary IP addresses for people to connect their laptops to our
network, and I helped demonstrate our EPICS Control System software
and
displays.
I have also followed-up on trying to get a demo color laser for us to
try. I have requested quotes for a service contract on our printers.
Also, ordered site licenses for WinZip and Secure Shell, and ordered
Framemaker 5.5 for our Unix system, and followed-up on orders for
Framemaker 5.5 for our PCs and Eudora E-mail site license.
Bake Oven:
----------
(K. Ryan)
This week Bake Load #2 consisting of three HAM bellows was completed.
Load #3, also consisting of three HAM bellows, was loaded. The process
is not routine yet and some minor problems have developed, i.e. both
load #1 and #2 developed air leaks during the cool down portion of
their respective heating profiles. I do not attribute these to anything
endemic in our temperature ramp rates or process but rather dumb luck.
We still don't have our parts tables and solvents etc. and are not
stocked for all materials but we are "getting there"!
Beam-Tube Bake Out:
-------------------
(M. Lubinski, M. Guenther, and W. Althouse)
The Cryopumps and Turbo pumps at ports Y2-1 and 9 were turned off
10/27/98, then the following entry was made, "09:17 10/27/98 The
project is shut down for overall tape backup of the system. This
concludes data logging for Module HY2". The data system has now
been
moved to Y1 and we will be setting up for the next bake.
The Turbos and Cryopumps from ports Y2-1 and 9 are in the process of
being moved to Y1.
The cooling water system for the powers supplies for the Y1 bake have
been filled and are running we are checking for leaks during this
period.
The local Public Utility District has come out and begun removing
power from Y2 at ports Y2-2, 3, 4, 7, and 8. These transformers will
be moved for the X-1 bake.
Slade Maurer began work this week as an assistant systems administrator
maintaining the computer network. Slade is a senior majoring in computer
science at Southeastern Louisiana University. He will work with us
ten
hours per week.
40 m Interferometer (Nergis Mavalvala)
1) Power budget/ifo losses/matching:
Cavity visibility (resonant reflectivity) using both DC and RF
measurements coupled with cavity linewidth measurements confirm
that the modematching to the interferometer is good but that
mirror losses are higher than previously assumed. The mode
matching is better than 90% but the cavity resonant reflectivity
is measured to be between 77% and 79% rather than the expected 11%.
This indicates that the losses in the arm cavities are higher than
expected. The same measurements were repeated for the south arm
and the results are consistent with those made on the east arm.
----------------------------------------------
Interferometer Sensing and Control -- M Zucker
(WBS 1.2.1.1.6, 1.2.1.1.7)
----------------------------------------------
Lock Acquisition (B Ware)
-------------------------
After discussion of the lock acquisition at MIT last week, spent the
week trying to resolve all questions about sign flips and gain changes
from state to state (answer: I don't know yet). This involves,
among
other things, running very long transfer function simulations of all
three states in SMAC (7 days and counting on three Ultra-30s.
Hope I
got all the parameters right). Also implemented more realistic
triggers to go from state to state and began exploring the sensitivity
to the triggers used and when they occur. I did what I hope is
the
final modification to SMAC to upgrade it completely from Matlab v4
to
v5, and now SMAC also works at MIT. I don't know why this wasn't
done
previously, as it was a fairly simple change, probably much less
difficult than the workaround implemented to avoid the change.
ISC Supervisory Controls (E Daw/N Mavalvala/P Fritschel)
--------------------------------------------------------
E Daw:
o I received Wind River Tornado and WinView software at MIT.
o I reconfigured fantasy.mit.edu for its new role as the host for
Tornado. The internal hard disk was backed up to tape, and also dumped
to an external disk, so that fantasy can be rebooted as a network
machine in its 'old' state whenever necessary. Its normal state from
now on will be as a stand alone machine without shared directories
with other MIT LIGO machines. It will be a dedicated machine for
development of code for the ISC supervisory VME CPU and for GDS
diagnostic tools.
o I wrote C code for estimating power spectra incorporating the 'fftw'
(fastest fourier transform in the west) self optimizing FFT
algorithm. This software is intended for use with the GDS LIGO on line
diagnostic suite. So far my software incorporates windowing, handles
errors in a manner compatible with GUIs, and can output power spectra
with different normalizations (RMS, peak), (PSD, amplitude per bin)
-
this list will be extended.
NM & PF:
o Calculated wavefront sensing alignment signals for the acquisition
states of the interferometer. With this info, we made a detailed
schedule for all the servo state changes required in the
interferometer length & alignment lock acquisition procedure. This
will now need to be implemented by the ISC supervisory controls.
o Measured the acoustic isolation provided by the recently
received table enclosure for the ISC sensing tables. The enclosure
(lined with additional acoustic damping material) provides a valuable
15-20 dB of broadband isolation above ~100 Hz.
-------------------------------------------
Lasers and Optics -- D. Shoemaker for J. Camp
(1.2.1.1.2, 1.2.1.1.3, 1.2.1.1.4,1.2.1.1.5)
--------------------------------------------
Pre-stabilized Laser (PSL)
==========================
- A number of problems continue with the installation of the PSL on
the 2k
IFO. Amplitude modulation was observed after the 21.5 MHz electro-optic
modulator (EOM) and this could not be tuned away with a half-waveplate
in
front of the EOM. Other possible sources of optical feedback
will have to
be tracked down.
In addition two closely spaced TEM00 modes were observed
through
the reference cavity, even when no rf was applied to the 21.5 MHz EOM.
This
was drastically reduced when the VME crate was turned off. It
is suspected
that there is some pick up by cables running close to the VME crate.
- Installation of the PSL is on hold until next week.
Input Optics
============
Input optics assembly (2-k IFO):
Task
Status
__________________________________________________
PSL IOO installation
- optics on table underway
- periscope on table complete
- beam alignment 11/10
- beam characterization 11/10
Vacuum Prep
- suspensions
complete
- nonsuspended optics underway
- suspended small optics underway
- riser block MMT2
in shop
- suspended MMT3 1/6
Mode-matching bullseye sensor tabletop experiment:
We are continuing with experiments and analyzing the way to minimize
the
transverse effect of the lens dithering. The lock-in signal of the
dithering lens does not provide a converging point for this alignment.
Higher order harmonics has to be monitored at the same time.
High-power testing:
We finally obtained satisfactory data for thermal lensing in fused silica
(Suprasil, manufactured by Heraeus), measured by a Shack-Hartman wavefront
detector. The data are consistent with each other among a number of
different runs made over three days. The keys to the measurement of
thermal lensing in a material of very low absorption seem to be (1)
to
optimize the probe laser's intensity and (2) to optimize the heating
beam
size on the sample, so that the sensitivity may be increased. It seems
also important to average image files over an appropriate number in
order
to eliminate the influence of the probe laser's jitter (beam wandering).
>From the spatial profile of the measured thermal lens we estimated
absorption in the fused silica sample. All the data show an absorption
coefficient between 10 - 20 ppm/cm, and the average of these data is
15
ppm/cm. This value is very close to the value of 15.1 ppm/cm estimated
by
Claude Boccara et. al. using a diferent method (beam deflection technique).
Core Optics Support
====================
BEAM-DUMPS:
The shop is machining the redesigned generic beam-dump. Ara is working
on
the specialty beam-dump for GB RMHR3 in HAM3 .
ITM BAFFLES:
Angel has redesigned the arm cavity baffle which is mounted in the
manifold
spools at the mid stations in the x and y arms, to eliminate the need
for a
cryopump baffle in the mid station. He is making the same redesign
to the
end station arm cavity baffle, to eliminate the need for a cryopump
baffle
in the end station also.
ETM and PO Telescope-
CC Development is completing the working drawings for the ETM and PO
telescopes. The finite element analyses of the
mechanical vibration modes of the structures is in process by an outside
vendor.
MOCK-UP
Progress is on hold.
PO MIRROR
Ken M. has tested the preliminary one-axis flexure design. Modifications
will be made, and a 2-axis flexure will be constructed and tested.
CONICAL BAFFLE
Craig is completing the design of a cryopump baffle which will be placed
in
the spool pieces A1-A and A1-B in the vertex station. The redesign
of the
arm cavity baffles eliminated the need for cryopump baffles in the
mid and
end stations.
TEST EQUIPMENT
Jonathan has accepted the alignment telescopes from Davidson Optronics,
and
has verified their operation with the eyepiece camera.
INTEGRATED LAYOUT DRAWING
Mike S. has been working with Paul to incorporate the current COS beam
dump, baffle, and telescope design into the ILD for the vertex, mid
station
and end station.
COS FINAL DESIGN REVIEW
Mike S. has been working frantically on the write-up for the COS FDR,
to be
held the middle
of November.
--------------------------
Isolation Group -- D. Shoemaker for M. Fine
--------------------------
Core Optics/Metrology (G. Billingsly)
Calibration of flat C continues with the CSIRO approach of measurements
of a
very good optic (FM02) at random locations. Several mysteries
have come up
and some have been solved, including; replacement of 2 springs
on the Core
Optics mount, re machining of 3 interfering pieces on the Core Optics
mount,
redeployment of the magic-bubble-wrap isolation system (!) for the
air column
between the reference and test piece. The earthquake at Big Bear
was
observed with interest. Other noise sources are not so easy to
identify.
4ITM02 is awaiting certification at CSIRO, and should be shipped this
week.
We are working out the schedule for delivery of the remaining optics.
---------------------------------------------------------
Detector Systems Engineering -- D. Shoemaker/D Coyne
(WBS 1.2.1.1.9)
---------------------------------------------------------
Global Diagnostics System (Daniel Sigg)
--------------------------------------
Discussions with Lazzarini, Coyne, and Shoemaker on LDAS/GDS interaction
and cooperative effort.
Physics Environment Monitor (Alex Marin)
-------------------------------------------
More PEM equipment has been ordered as follows (Matt Smith):
- Electromagnetic shakers (LA)
- Outside TRIATEK temeperature sensors (WA and LA)
- RF broadband receivers and antennas (LA)
- SRS signal generators (LA)
Matt will be in Hanford between 11/9-11/20/98.
We are updating the 2km WA and 4km LA PEM installation plan,
according to the last version of the installation plan.
Optical Contamination (Daqun Li)
--------------------------------
For the first time, the transmission map of a REO 1" flat optic,
typically used in our contamination cavities, was obtained with the
Loss
Scanner which has been recently automated. The entire scanning
area is
11 mm by 11 mm with a scanning stepsize of 1 mm (the beam waist on
the
mirror is ~0.5 mm). The mean transmission over the entire scanning
area
was found to be 73 ppm with peak-to-peak transmission variation of
20 ppm and standard deviation of 3 ppm. The mean transmission
and peak-
to-peak transmission variation seem to agree well with the transmission
losses obtained in ringdown measurements among our contamination cavities.
All the three contamination cavities are off-line without light
illumination. The contaminated mirrors, taken out of cavity 2,
were
given to Rai Weiss for further diagnosis. The air baked steels
were also
taken out of this cavity and a new set of mirrors were then installed.
This cavity is pumping now and subject to requalification. The
other two
cavities are awaiting the turbo pump to be released from cavity 2 in
order
to load next testing materials.
-----------------------------------------
Control and Data System -- R. Bork
(WBS 1.2.2)
-------------------------------------------
Suspension
===============================
- 50 stuffed Satellite amplifiers boards have been shipped from the
vendor
and
are due at Caltech on 10/30.
- Testing of LOS controllers continues.
- The prototype of the suspension DAQ whitening board is fully operational.
Slight changes will be required for the production boards.
- Preparations are being made for next week's visit to Hanford. Activities
planned are:
- Complete installation of IOO suspension rack and
componnets
- Pull field cables for IOO suspension system
- Test all internal and external rack wiring and
cabling
- Begin test of IOO suspension software and operator
screens.
Vac Controls:
=================================
work on modifying cold cathode controls.
Data Acquisition
=================================
Working problems with second ICS110b ADC and VMIC 5588 Solaris
drivers. Integration of Caltech and Hanford systems continues this
week.
Network
==================================
Multi-mode fibres pulled between Mass Storage Room and 4k, and between
4k and 2k IFO. Cat 5, fibre and co-axial pulled between MSR and Control
Room.
Control Room
===================================
3 Sun Workstations running in control room.
General.
==================================
Provided NSF with tour of control room, controls systems and DAQS.
FMCS
==================================
Installed second FMCS PC.
LSC Photodiodes
==================================
Documentation for the existing photodiodes has been completed and is
being
put into DCC. Joe is beginning the modifications to the final PD design.
Timing System
==================================
JXI is working on completing the firmware for the GPS Master timing
boards
that are now overdue. Delivery of the first two units is eminent. Work
here
is progressing on a Sync Error circuit to ensure that the GPS Masters
and
other parts of the system do not lose sync.
| CR-980041 | WBS 1.2.1 | Seismic Isolation System, Left Handed Spring Seats | S. Whitcomb |
| CR-980042 | WBS 1.1.2 | Beam Tube Module Testing and Equipment Purchase | L. Jones |
| CR-980043 | WBS 1.1.2 | Cancellation of Beam Tube Module Alignment Checks | L. Jones |
| CR-980044 | WBS 1.4.4 | General Computing Caltech | L. Wallace |
| CR-980045 | WBS 1.2.1 | Seismic Isolation System In-vacuum Components | S. Whitcomb |
| CR-980046 | WBS 1.2.1 | Seismic Isolation System Final Design Costs | S. Whitcomb |
| CR-980047 | WBS 1.2.1 | Seismic Isolation System Scissors Tables Second Source | S. Whitcomb |
| Action No. | Description | Responsibility | Assigned Date | Due Date |
| 1 | Prepare Operations Budgets for FY 1999 | Lindquist | August 6, 1998 | November 5, 1998 |
| 10 | Procedure to Cover Late Charges for Invoice Payments | Jasnow | August 27, 1998 | November 5, 1998 |
| 17 | Louisiana Road Access | M. Coles/G. Stapfer | October 8, 1998 | November 12, 1998 |
| 18 | Acquire Mail Codes for Sites | E. Jasnow | October 15, 1998 | CLOSED |
| 19 | Consider Lawsuit Against Panel Manufacturer at Livingston | R. Pool/E. Jasnow | October 15, 1998 | November 19, 1998 |
| 20 | Schedule Meeting on Shadow Accounting System for Operations | P. Lindquist | October 15, 1998 | November 12, 1998 |
Assisted the Mechanical Engineer with packaging and shipping of six (6) cartes to Astro Pak (Attn: Steven Adkinson) Downey, CA. via CALTECH transportation.
Assisted the Optical Engineer with packaging and shipping of optical items to the Hanford Observatory (Attn: Haisheng Rong) via Federal Express.
Visited the Defense Reutilization Material Office (DRMO) at Barstow, CA. to sign for a Forklift ($80.000) and assisted in the loading for transporting to the Livingston Observatory with expect arrival date NLT 11/3/98.
| C | Contractual/Procurement | 158 |
| D | Drawings and CAD | 3 |
| E | Engineering Documentation | 37 |
| G | Graphics/Presentations | 0 |
| L | Letters | 38 |
| M | Management/Policy | 7 |
| P | Publications/Formal Notes | 0 |
| T | Technical Notes, Informal | 4 |
[Estimated activity (these are partial weeks. Data was not available
for full week.) -pel]
| WE Date | Incoming Invoices and Receivers | Wire Transfers | Large Contract Invoices | New Purchase Ortders |
| 10/08/98 | 248 | 2 | 9 | 155 |
| 10/15/98 | 225 | 0 | 4 | 157 |
| 10/22/98 | 247 | 0 | 1 | 58 |
| 10/29/98 | 182 | 1 | 4 | 42 |
Prepared an August 1998 to September 1998 EAC comparison.
Preparation of the September 1998 Monthly Progress Report to the NSF is in progress.
Advanced calendars in COBRA and recalculated earned value milestone percentages for the October 1998 reporting period. Printed out earned value worksheets and first draft schedules for update by task managers. Initiated update of the schedule value of milestones for the facilities and vacuum equipment effort.
>From: Florence Kaufman <fkaufman@ligo.caltech.edu>
The Caltech Passport credit card purchasing program is now in full effect at Hanford, with nine account managers holding these cards. It is anticipated that this program will significantly reduce paperwork, and associated delays, and substantially improve the speed in paying vendors.
Bonnie Wascom, administrator for the Livingston site, took the Passport credit card class on Tuesday, October 27, and a class for all of the Livingston account managers is scheduled for sometime in March 1999.
LIGO QA has also been working with the DCC (L. Turner) to "audit" the
PSI Hanford site Vacuum Equipment "End-Item" documentation submitted per
the contract SOW and CDRL. So far, the audit has found the documentation
submitted todate to be through, reasonably well organized, and "readable".
No report received.
For additional information about this report, contact sanders@ligo.caltech.edu