The Project Control Meeting
Agenda for Monday October 12, 1998 will be:
(Meeting time: 10:30 am Pacific Time)
=========================================================
LIGO Hanford Observatory (LHO) Operations (F. Raab)
=========================================================
General Items:
--------------
(Fred Raab)
BIG NEWS: Seismic installation into the vacuum
chambers has begun!!!
Now it's our guys in the funny suits! (See Seismic
installation,
below and picture above.)
I am back to work on fostering relations with area schools. I have set
up a meeting with members of the Science Education Group at Pacific
Northwest National Labs (PNNL) to discuss possibilities for LHO to
team up with their very successful programs to involve area school
teachers in scientific research - typically through summer internships.
(Last year I cajoled the superintendents of the six school districts
surrounding LHO to send teachers from their districts to a "brain-
storming" workshop to advise me on how LIGO could help them enrich
their teaching programs. The top item on the teachers' wish list was
summer internship opportunities and they all spoke highly of the PNNL
program.) We plan to discuss prospects for cooperation next summer.
I also have a meeting set with Charles Bickenheuser, an English teacher
at Pasco High School. The city of Pasco is the center of a large
Hispanic population in Franklin County, many of whom are descended
from formerly migrant agricultural workers who settled in this area.
Mr. Bickenheuser started using science stories as a focus for his
writing classes, partly for the "wow" factor but also realizing that
his students as a group are not typically given much encouragement
to
pursue technical careers. This has now evolved into a science club
with
small resources but big ambitions. Last year they built a 10", F/12
telescope with which they are pursuing astrophotography! Charles and
I have spoken in the past of a joint science club effort and will
pursue this further this year.
This past week Richard McCarthy was also working on relations with
local schools. He spent an afternoon talking with Dr. Lee
Phillip of WSU Tri-Cities touring WSU Electrical Engineering facilities
and discussing curriculum emphasis at their campus. Dr. Phillip was
very helpful and informative. In the future we may be able to work
with them on some projects. Richard also spent some time at Richland
High School discussing possible involvement of students at LHO.
Possibilities discussed included science classes or clubs getting
involved with work at the Observatory.
We have also expended significant effort getting ready for installation
of new software (and training) so we can revamp our purchasing system.
The basic system (called "Passport") will allow us to use credit cards
for the hundreds of small purchases that now typically require purchase
orders. This should streamline purchasing, maker it much faster,
cheaper (in terms of manpower) and better (in terms of less stress
on people who like to get work done). The training seesion requires
us
to set up hubs and networking for nine computers, plus a VGA projector.
Christine Patton is working the networking and computing logistics.
Richard McCarthy is trying to chase down the projection system.
Renting fairly advanced presentation equipment in our small
community has proved daunting. However a small Richland firm will
supply us with a projector for training next week. We will also talk
to
them about possible solutions to the projection system in the control
room.
Seismic Isolation Installation:
-------------------------------
(C. Gray, H. Radkins)
Hugh assisted Mark Barton as he made yaw and shear tests of right
handed, left handed, and mixed handed springs. A first cut of the
results suggest the use of both handed springs reduces the yaw to
10% of sysmetrically oriented one handed springs. Larry Jones has
suggested a new approach to the Bellows protection based on the
40m scheme. We will test a single piece guard that is flexed
open
for installation and is then clamped in place.
BSC: The elevations and positions of the first two BSC SEI Piers
were set on BSC4. The Pier Centering Jig was not used to install
the piers but was used with success to position the two pier
relative to the chamber and to each other.
HAM: We set positioning scribes on the HAM7 piers for later use in
locating the x-y translation stage mounting plate. This could have
been done at a later date but we wanted to have something in place
before other installation might make optical surveying problematic.
Scissors Tables are on the way!
HYTEC: Actuation testing is ongoing with problems being worked
out
on supplier QC and airbearing 'stiction'. Four Scissors Tables were
shipped to Hanford 10-6 for use in HAM7. Lots of drawing QC being
done. Final bolts for HAM packages are in house and are being
kitted
for LHO.
Dennis Coyne and Stan Whitcomb arrived for work with Seismic
installation for HAM7 and joined with Rick Savage and Corey Gray to
start installation on WHAM7. Doors were removed and installation
was begun on the Support Tubes, Support Table, and Bellows. As of
Wednesday night (10/7), all the Bellows were on (not torqued). Once
another check of the level of the Support Table is made and the
Bellows are torqued down, doors will be installed back on chamber
and it will be pumped down and leak tested.
Optics & Lasers:
----------------
(D. Cook)
We are finalizing the PSL enclosure, outfitting it with proper height
stools, tables, permanent laser safety signs and emergency shut-off
buttons,lighting electrical etc. The LHO Laser Safety Plan has been
changed and submitted for approvals. The Standard Operating Procedure
for operating the 2K PSL laser in the Laser area enclosure will go
into effect by the end of the week barring unforeseen delays. The LIGO
Hanford Observatory had some recent safety related incidences which
had a profound effect on the site.
I speak mainly about the site laser safety here, when I say that when
we work with the various laser systems, the governing LHO Laser Safety
Plan and Standard Operating Procedures will be taken very seriously.
We will be strict about following the procedures. Please take the
appropriate time needed to understand the latest version of LIGO
Hanford Laser Safety Plan LIGO M980042-B-W which will hopefully be
available by 10-16-98 from DCC. All of the existing Standard Operating
Procedures will follow shortly as some are being updated.
I hope to get the optical comparator reassembled and calibrated next
week. We are hoping that it will be a useful tool to assemble
suspension optic components. We have ordered an additional low powered
HeNe laser for alignment purposes. An additional shoe scrubber with
vacuum for the LVEA's second access door is on it's way. Particle
counts continue to show improvements in the LVEA. Addition lab
supplies and equipment continue to arrive.
Computing Systems:
------------------
(C. Patton)
The Passport software which will be used with the new credit cards for
account managers here at LHO, was shipped up from Caltech and is being
installed on a few PCs to check it out. Next week Criselda from
Caltech will hold a training session here at LHO. I have been getting
everything ready for that. Partly in preparation for this training
session, I will be upgrading the front office, Jill's, PC.
It looks like the T1 line is now official! I have searched the
Washington state map and have picked out 254 mountain and lake names
which will be tied to the T1 IP addresses and used to name our
computers and peripherals. We actually have been assigned two subnets
for a total of 510 IP addresses, however, I think 254 is enough to
start with. Besides, I have used every mountain, lake and stream name
on the map, the next step would be to use cities and towns!
Electronics/Electrical Systems:
-------------------------------
(R. McCarthy)
The cable tray installation has finally begun. Sun River has started
installation around BSC one so we can accept their design and finish
procurement of materials for the belts around the BSC's. The
installation
should proceed quickly now that the supports are finally painted.
Worked a great deal with Doug Cook on the PSL Laser enclosure. Trying
to
make it a safe and workable solution.
WE finally made some headway with the manufacturer of the battery operated
EXIT lights on sight. We have had a quite a few fail over this
past year
and the installation contractor was unable to remedy the situation.
After
multiple phone calls to the manufacturer it was discovered that their
marketing team made an error and the EXIT lights we have are not compatible
with the battery system we have. In order to rectify this the
manufacturer
will be sending me replacement circuit boards for the lights.
They will
also be sending new batteries to replace the bad batch we received
with the
initial shipment.
And as always carried out duties to proper maintenance on equipment
and
that we remain in compliance with OSHA in regards to new installations
and
safety systems.
Beam-Tube Bake Out:
-------------------
(M. Lubinski, M. Guenther, K. Stiff and W. Althouse)
We have been leak checking the VAT valves (10" port valves) that were
adjusted by the VAT technicians. We have completed all the valves on
X2
and found only one that leaked at port X2-5. The leak was from the
bellows seal gasket area. We obtained a new gasket from VAT and have
repaired the leak. The leak check was okay.
Power was turned off to the DC power supplies and to all of the
blankets Friday (10/2/98). The tube cooled down over the weekend and
has reached a level of 19-21 degrees C. This will vary with ambient
temperature within the BT enclosure. We have also valved off the
Cryopumps at ports Y2-2, 3, 4, 6, 7, 8. The Cryopump at port
Y2-6 has
been removed and we are installing the "post bake" RGA at this port.
This RGA will be in the "counter" mode during this time for more
sensitive measurement.
Procurement of support equipment continues. We are also developing plans
for bakeout at the Livingston site in detail in coordination with Mark
Lubinski.
Dianne Winston, State Representative for St. Tammany Parish, visited
us
this week for a tour. She is very interested in educational outreach
opportunities relating to LIGO that would involve the St. Tammany schools.
Fortunately, the road was again flooded when she came. It probably
helps
for members of the legislature to see why we need a better road.
Livingston Installation (Allen Sibley)
The back fill of the x arm is in process and should be completed on
Thursday. This is in preparation for GNB's arrival on Tuesday of next
week,
for assessment and repair of the damaged mid point valve. The back
fill has
proceeded well and after about 50 hrs. is now at 570 torr. PSI has
installed
the old CBI BDF in the mid station building and is cleaning the
building
and installing a temporary clean room. Work should be finished by the
end of
this week.
Beam Tube (Larry Jones)
a. Livingston Installation
CBI performed the Y2 module accum and global calibration accum and posted
the data on the LIGO net. They are preparing for performing the same
tests
on module Y1 and hope to finish them by early next week. Weiss will
be
evaluating the data for acceptability.
Hanford Construction (Otto Matherny)
Levernier
No new developments
OTHER ITEMS
Water Modification Contract
All the submittals sent to Parsons were reviewed by Parsons and returned
to
Apollo. The water line to the new staging building is 90% complete,
the
foundation for the new tank is formed and ready for concrete.
Staging Building
George Grant Construction Company is preparing the detailed schedule
and the
schedule of values.
Livingston Construction (Gerry Stapfer)
During the recent storms we found that the buildings are still leaking.
The
present situation of continued leaks is unacceptable and we are in
contact
with Parsons to investigate if the construction of the buildings was
per the
design or if the design requires to be modified.
From: Fred B. Asiri [mailto:fba@ligo.caltech.edu]
Sent: Thursday, October 08, 1998 4:00 PM
>
> > 1.1.3 & 1.1.4 BTE and Civil Construction (Fred Asiri)
> >
Issues:
> > Hanford:
>
> 1. New Staging and Storage Building, pre-construction
meeting
took place with George Grant Construction at the site last
> > Livingston:
>
>
> 1. The asbuilt drawings have been received and will be
distributed
to the site today.
> 2. I will be at the Livingston site next Thursday and
Friday. To
> go over the close-out issues for the
Buildings and Infrastructure
> Contract.
3. Parson proceeding with redesign for an above-grade vault for
for the site
communication. The new enclosure will extend out from the perimeter
of the
existing vault by at least 2 ft on all side to allow for a 90 degree
bends
to PVC conduit on each side. At least 4 ft of straight run will be
added to
conduit to bring it to about the grade level. The fiber optic contractor
need to allow two more 90 degree bend.
4. Rain leakage at OBS/LVEA. I have discussed the problem with
Parsons and site personnel. So far the contractor is taking a patchwork
approach to fixing the leak. Parsons has reviewed the design drawings
and
shop drawings by an architect specialized and experienced in this area
who
was not been involved in the design of LIGO. He is going to the Livingston
site to perform the detail field survey of the problem areas, to determine
the root cause of problem and to recommend repair /fix to the problem.
----------------------------------------------------
DETECTOR GROUP -- Whitcomb/Shoemaker
(WBS 1.2, 1.3)
----------------------------------------------------
40m Prototype (Nergis Mavalvala)
There were two experiments running in parallel at the 40 m this
week:
1) We are trying to make a power budget for the interferometer
based on several measurements. It has been previously observed
that the full power-recycled FP interferometer has a prefered
robust locking state when the cavity mirrors are noticeably
misaligned. We believe the misalignment introduces losses which
change the carrier coupling from near critical to under-coupled,
affecting the sensor signals at the reflection port. Somewhat
contrary to this, the visibility (reflectivity of the locked
interferometer) is measured to be 40%. To decouple ifo
reflectivity from mode mismatch (light in higher-order modes
that does not couple into the ifo can be a significant
contributor to the reflected light power, though 40% !???),
we are trying to make an independent measurement of the mode
matching by offseting the frequency of the RF PM sidebands so
that one of them resonates at the TEM 20/02/11 frequency in
an arm cavity and measuring the transmitted power at RF
frequencies. We are in the process of understanding our
measurements quantitatively, especially difficult if the ifo
reflected power is comprised of a bundle of "dirt" modes.
2) Meanwhile, since the alignment state of the interferometer
leads to ambiguities in these and other measurements, we are in
the process of implementing orientation control of the cavity
end mirrors using wavefront sensor signals. This feedback is
taking some electronics reengineering since (i) the end mirror
suspension controllers do not have a DC actuation path readily
available and (ii) we need to "gracefully" deactivate the local
orientation controls as the WFS controls kick in after longitudinal
lock is acquired. We are hoping to cure the most significant
misalignment effects by using a 4-degree-of-freedom wavefront
control system: the pitch/yaw of the end mirror differential mode
misalignments and recycling mirror
misalignments.
----------------------------------------------
Interferometer Sensing and Control -- M Zucker
(WBS 1.2.1.1.6, 1.2.1.1.7)
----------------------------------------------
Interferometer sense/control (Zucker)
---------------------------------------------
LSC lock acquisition (Ware)
---------------------------
Continued working on switching controllers, understanding sign flips
in different states, extracting actual controllers from SMAC idealized
controllers.
LSC control code development (Zucker for Fritschel, Daw)
--------------------------------------------------------
Continued work on code architecture and test plan. Initiated
procurement of Wind River / VXWorks software
development environment licenses for MIT. The vendors are
providing this SW at a significant discount.
ASC wavefront sensing (Mavalvala)
----------------------------------------------
Beam reducing telescope data were received from Mike S. (COS)
and are being incorporated into the design of the ASC WFS Guoy
phase telescopes for the antisymmetric and pick-off beams.
The WFS for the mode cleaner is also being worked to transform
the sensing basis in terms of the input beam misalignment (vs.
cavity mirror misalignment).
ASC Design and Fabrication (K.Mason, M. McInnis)
---------------------------------------------------
A softwall cleanroom was built up and placed in the ISC Table assembly
room. The room is now complete and assembly has started.
A grout plate template has been designed and given to a machine shop.
The template will be complete Monday and shipped overnight to Hanford.
The Mounts to adapt the autocollimator to the theodolite are complete.
We will assemble and test next week.
ISC fabrication (M. Smith)
--------------------------
Completed the Optical Lever Mounting Wedges for WBSC7 and WBSC8.
The
drawings for these and the ones for WBSC4 are being sent out today
for
quotes. Design of the bridges for the ITM will now begin.
Received the machined boxes for the optical lever quad photo diode,
and can
start assembly when we get the photo diode board.
Received all the machined parts for IOT7 tables. The only remaining
items are the optical shutter and q-switch, and of course the enclosure.
It was found today that a small number of riser posts were not made
of
stainless steel (used carbon steel by mistake). The vendor is remaking
them and they will be ready next week.
Designed a photo diode holder for aligning the laser beam for the IOT
tables. Received quotes and initiated the purchase order.
-------------------------------------------
Lasers and Optics -- J. Camp
(1.2.1.1.2, 1.2.1.1.3, 1.2.1.1.4,1.2.1.1.5)
--------------------------------------------
Prestabilized Laser -- Peter King
--------------------------------------------
- A pre-modecleaner has been recycled by replacing the PZT which was
epoxied onto the body of the pre-modecleaner with VacSeal. This
involved
removing the VacSeal, which was done with a heat gun and epoxying on
a new
PZT and mirror.
- Vacuum chambers for the PSL reference cavities have been ordered.
- Beam propagation measurements have been performed on the 10-W laser
currently in the PSL Lab (#104). The results show that the beam
from the
laser is astigmatic. A pair of cylindrical lenses will be used
to try to
circularize the output of the laser. All of the 10-W lasers exhibited
some
astigmatism, however correcting for this has not been looked at until
now.
Input/Output Optics -- Dave Reitze, UF
-----------------------------------------
Hanford 2 km Installation
Working out optics cleaning procedures with Helena trying to determine
the
reason why the optics don't come clean at Hanford (whereas they do
at
Caltech).
Mode Matching Measurment
With larger dynamic range of the pre-mode cleaner length control, the
alignment and mode matching to the reference cavity was achieved. While
the mode cleaner locks to the laser frequency, the laser is locked
to the
reference cavity simultaneously. Since the reference cavity is
not
suspended and is very sensitive to the acoustical excitation, the coupled
loops becomes less stable than when they functioned separately. The
mode
cleaner remains locked indefinitely while the reference cavity loses
lock
in the presence of acoustic noise (talking) . Qi-Ze is working
on the
improvement of the servo loop and the tools for fine alignment of the
lenses to the beam.
Procurement -
The 2 km mode cleaner curved mirrors have been reworked by GO and will
ship to REO for recoating. All of the 4 km optics are also polished.
Received the components of vacuum-use halfwave plates (8 sets) and
polarizers (two sets) from Karl Lambrecht for bake out. We are planning
to
ship back the components to Karl Lambrecht after baking for final
assembly. To keep the vacuum compatibility, we discussed with Karl
Lambrecht the environment for the final assemble. KL has flow benches
compatible to the class 100 level. We have sent several sets of coats,
hats, shoecovers, gloves and masks to them for optics handling. We
also
told them the correct shipping protocols.
Core Optics Procurement and Metrology -- GariLynn Billingsley
-------------------------------------------------------------
The IR interferometer was realigned on Sunday and Monday of this week.
Acceptance testing of the realigned system took place Monday through
Thursday. It appears as though the system is Finally ready for
use.
Consecutive 3 flat measurements done last night show a repeatability
of
less than 1 nanometer rms. Comparison with 3 flat measurements
done in
Tucson show a repeatability of approximately 1 nm rms. We are
moving
ahead with the test process.
Core Optics Coatings -- Helena Armandula
--------------------------------------------------
REO Contract - COC's coatings: Inspection of four 2ITM's under a dark
field
microscope, were done in ~15 regions of diam 2mm in the central
7 cm. area.
Three showed about 100 defects bigger than 2.5 microns.
One of them, 2ITM04, showed significant less defects, about 35
defect points. Also, ETM03 was inspected in the same fashion, showing
fewer
defect points, about 25. We plan on inspecting all the coated optics
received to attempt to co-relate the visual defects with scatter.
Inspected all coated Steering Mirrors received from the University
of Florida.
All of them show a minimal amount of scatter before and after cleaning.
We
are still characterizing the mirrors. After an initial washing and
inspection they will be shipped to Hanford on Monday.
Indium Seals: We are in the process of placing an order to aluminize
the end
of some magnets to improve the magnet/dumbbell bond.
Core Optics Support -- Michael Smith
------------------------------------
BEAM-DUMPS:
Ara is completing the shop drawings for the vertical support structure
for
the generic beam-dump. Mike S. has re-calculated the expected resonant
frequencies and the design appears to be stiff enough. All drawings
will be
released to the shop by early next week.
Ara has begun the design of a specialty beam-dump which will be
incorporated into the elliptical baffle mounted to the ITM LOS structure.
ITM BAFFLES:
Angel has completed a preliminary layout of ITM-y baffle. Everything
works
okay, but the optical lever beam holes in the baffle will have to be
moved.
ETM and PO Telescope-
A final design review for the mechanical design of the PO telescope
was
held by CC Development at CIT on Friday 10/25/98. Several recommended
design changes will be incorporated and presented for final approval.
The
final design review of the ETM telescope will be held at CIT on 10/9/98.
A
preliminary report on the tolerance requirements of the PO telescope
was
received from Optics 1. The useful results of the tolerance analysis
will
be incorporated into the working drawings for the PO telescope housing,
and
into the procurement specifications for the optical elements. The tolerance
analysis for the ETM telescope will be completed in about a week.
FARADAY ISOLATOR SYSTEM
Awaiting the quotation from the vendor. Irena is preparing a sole-source
procurement package.
COS VIEWPORTS
Awaiting the quotation from the vendor. Irena is preparing a sole-source
procurement package.
MOCK-UP
The mounting structure for the BSC SEI table was completed, and the
SEI
table is suspended.
PO BEAM PATHS
Mike S. provided a listing of the PO beam path lengths to Nergis for
ASC use.
OPTICAL LEVER BEAMS
Mike S. and Angel are in the process of verifying the ISC optical lever
beam paths, using 3D Mechanical Desktop.
PO MIRROR
Ken M. is back in the fold, working on the design of the pick-off mirrors,
and assisting in providing additional data to CC Development for the
design
of the PO and ETM telescopes.
CONICAL BAFFLE
Craig C. has begun the design of the conical baffles which are mounted
in
front of the cryopump.
--------------------------
Isolation Group -- M. Fine
--------------------------
Seismic Design (Mike Fine)
--------------------------------------
1. Air Bearing Testing:
Hytec is still having problems with stiction in several of the air
bearings
under full load at 150 psi. Specialty Components believes that
there must be
something trapped inside the air bearings. Hytec is investigating
this
possibility this week. We would like to clear this issue so that
the
production order can be released.
2. Rack Testing/Debug:
Hytec is still encountering some hardware fault situations with the
Galil
amplifiers used in the motor drive system. These problems are
slowing being
resolved. Some of the of the shelf hardware is of dubious quality.
Hytec
will speak to their suppliers about these concerns. The W stages have
been
successfully run. The test of yaw motion of the system is expected
to
be completed by the end of this week.
Suspension -- (Janeen Hazel/Mark Barton/Mike Fine)
-------------------------------------------------------------------
1. LOS Welded Structure:
Mike visted Brookfield this Monday and inspected the 1st article weld
after
incorporating the groove for ease of cleaning and the "J" shape weld
prep.
All the 8 welds joining the brackets to the legs show full penetration
and
are free of visible cracks. Of the 4 sensor/actuator bracket inspected
the
worst distortion is .033" variation on the profile across the width.
The
parallelism of the earthquake stop bracket and the adjacent leg surface
is
within 1/2 degree for the front brackets and 1 degree for the rear
brackets.
The authorization was given to Brookfield to proceed with the production
and
the delivery of the 1st 2 LOS1 units are now expected in the 1st week
of
Nov.
2. Alignment and Assembly Fixtures:
Superior Jig has delivered two alignment fixtures and one lift table
to
Caltech
with remaining lift table due next week along with the two support
beams.
Schober's agreed to deliver all parts by Oct 30, including clamps to
hole
suspensions to optical tables, BS suspension blocks and BS
fixtures.
---------------------------------------------------------
Detector Systems Engineering -- D. Shoemaker/D Coyne
(WBS 1.2.1.1.9)
---------------------------------------------------------
Global Diagnostics System (Daniel Sigg)
--------------------------------------
No report this week.
Physics Environment Monitor (dhs for Alex Marin)
-------------------------------------------
We have chosen the combination of Wilcoxson accelerometers and Endevco
signal conditioners for the broad-band seismic sensing on the test
mass
pier supports. (Alex Marin is on vacation for 2 weeks.)
Optical Contamination (Daqun Li)
--------------------------------
Cavity one: recently loaded with teflon wires soldered with connectors.
Initial ringdown and mode spacing data are good, consistent with the
previous data for this cavity.
Cavity two: recently loaded with air baked steel. Initial ringdown
and mode spacing data are bad, ~17 ppm increase in total cavity loss
and ~10 ppm increase in absorption loss, as compared to the previous
data of viton which were got in the same cavity prior to the air baked
steel. Ringdowns of higher order modes indicate that the losses
are
not localized, but spread over at least several mm of the mirror surface.
It should be noted that viton data were taken with the chamber
pumped with a turbo pump (the ion pump could not function with viton)
while the data for air baked steel were taken with the chamber pumped
solely by the ion pump. It may be the vacuum pumping system has
an effect on this problem because by venting and repumping the chamber
with a turbo pump, the losses were reduced by ~30%. (Or this effect
may
be due to some residue from the viton being pumped away.) Also, the
vacuum
level reached with the ion pump for this cavity is a factor of ~10
times higher than the other cavities, which may indicate a problem
with
the ion pump. I am planning to take a few days data with/without the
turbo
pump to see any difference between the two pumps. Then, after changing
mirrors, the viton test will be repeated, and the air baked steel
measurement will start again.
Cavity three: empty. Ringdown and mode spacing data are good with
a
quieter ringdown detector recently installed. This cavity needs
a week
or two to complete its qualification process.
-----------------------------------------
Control and Data System -- R. Bork
(WBS 1.2.2)
-------------------------------------------
Suspension
=====================================
- The contract for stuffing of 50 satellite amplifiers has been placed.
Boards
should be complete by 10/30.
- Testing of the LOS controllers continues. 25 SOS controllers are
operational.
- The prototype DAQ whitenning card for the suspension signals has
been
stuffed
and will be tested next week.
- Installation of cables for IOO suspensions rescheduled for week of
Nov.1,
pending installation of cable tray to HAM7.
IOO
=================
- The mode cleaner ASC servo amplifier has been tested and is complete.
- EO Shutter Controller: Received and installed high voltage power
supplies
from
Ultravolt. Still waiting for a couple of high voltage diodes from VMI
to form
the protective circuit for the high voltage power supplies in use.
ASC/LSC
========
- We are in the process of building up the teststand to simulate the
ASC
system.
This includes 4 pentek boards, reflective memory modules, two crates
and two
CPUs. This test stand will be used to verify timing, synchronization,
noise
performance, etc. for the front end servo processing.
- An interface meeting has been scheduled at MIT for 10/21-10/22. Lock
acquistion implementation strategies will be one of the main topics
discussed.
In addition the reflect. memory interface between the front end servo
processors
and the supervisory controller will be defined in greater detail.
Timing System
================
- Latest GPS receivers have been delayed due to "higher priority" client
at
vendor. Still hope to have first units by end of next week.
- Clock fanout and synchronization modules under test.
Data Acquisition
=================
- Shipped Sun450 server to Hanford; second round of software
integration/test at
Hanford Oct. 15 thru Oct. 20.
- VMIC provided an updated driver for their reflected memory; still
has
problems
with interrupts on Sun. We are using work around of polling for flag
indicating
new data ready until VMIC can get the interrupts fixed.
| 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 |
| Action No. | Description | Responsibility | Assigned Date | Due Date |
| 1 | Prepare Operations Budgets for FY 1999 | Lindquist | August 6, 1998 | October 22, 1998 |
| 4 | Proceed with Credit Cards for Sites | Jasnow | August 6, 1998 | October 15, 1998 |
| 5 | Determine how we pay BO tax due State of Washington | Jasnow | August 6, 1998 | Closed |
| 7 | Funding for Louisiana Access Road | Stapfer | August 20, 1998 | Closed |
| 10 | Procedure to Cover Late Charges for Invoice Payments | Jasnow | August 27, 1998 | October 22, 1998 |
| 14 | Secure Domain Name for Livingston System | G. Sanders | September 24, 1998 | Closed |
| 15 | Set up Off Campus Accounts for Site Travel | P. Lindquist | September 24, 1998 | Closed |
| 16 | Provide list of numbers to be used for installation travel (to be placed on LIGO internal Web site) | P. Lindquist | October 8, 1998 | October 15, 1998 |
| 17 | Prepare response to LSU regarding road | B. Barish | October 8, 1998 | October 15, 1998 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Technical Notes/Informal (T) | 4 |
Five photo- and viewgraph presentations were assembled for lecture use.
I have updated the LIGO Project Signature Authorization list (includes all newly opened LIGO accounts) and e-mailed it out for review on 10/7/98. I requested all input be given to me no later than 10/9/98. On Monday I plan to give it to Dr. Barish for signature.
I made a file of all "Off-Site Installation Accounts" and gave it to Barbara Kratochwill to attach to the "Travel to Sites Procedure" located on the LIGO internal web site (see site telecon action #16 above).
I am updating the LIGO salary file to be used in the preparation of the Operations budgets.
| Date | Incoming Invoices and Receivers | Wire Transfers | Large Contract Invoices | New Purchase Ortders |
| 10/5/98 | 187 | 1 paid, 1 requested | 3 | 45 |
| 10/7/98 | 16 | 0 | 5 | 0 |
| 10/8/98 | 45 | 1 paid | 1 | 110 |
| Totals | 248 | 2 | 9 | 155 |
Continued to input status received to date from task managers. Completed the schedule value of milestones for facilities and vacuum equipment effort.
Advanced the calendars in COBRA and posted earned value for LIGO PMB 3 and 4. Received and downloaded actual costs through September 1998 file from CIT finance into COBRA. Revised the invalid estimate dates and printed out the EAC worksheets for distribution.
Replanned the 5B592 [Beam Tube Bake] work package.
Received September Schedule inputs and began updating the Ligo Open Plan Pro schedule for both Facilities and Detector.
Worked on the Quarterly NSF report. Updated the CSSR of the overall project as well as a breakout CSSR for the individual systems to be used for the NSF presentations. Produced reports not normally used for monthly reporting but required for the NSF quarterly.
Began producing schedule plots of Facilities and Detector. Created new plot format for Facilities which combines all activities into one chart for easy reference.
Modification No. 15 to the PSI contract is being prepared to cover several change order requests, including the installation of the vacuum system hardware at MIT.
The job walk for the mechanical maintenance contract was held at Livingston on Monday, October 5, with four contractors present. Proposals are due on Thursday, October 15, with the evaluation committee scheduled to convene on Tuesday, November 3 in Pasadena.
The FY 1999 Operations Work Plan is being reworked. The end-of-August Quarterly Report will be finalized this week. Contributions or comments on the draft version are still welcome.
1.4.3.1 Systems Engineering & Integration (AL,
DC)
__Analyses:
The database for the BT bake is now accessible
using a garphical front end which runs within
netscape. Data may be downloaded as excel-readable
text files. Bruce Sears (SRL) and Roy
Williams(CACR) deserve the credit.
__Reliability: Nothing to report
__Integration Support:
SEISMIC TABLE BALANCE WEIGHTS
Vendor has been selected
and order is
being prepared for
delivery to start
hopefully within two weeks or so, to receive 1000#
(quantity required
for first two
HAM chambers). Balance will scheduled for delivery
soon after.
ELEVATED PLATFORMS
The purchased, extended top, 3 step platform
appears to be a
feasible way to install
and align optical components. Evaluation will be
continuing for into
next week.
__Mock-ups:
MOCKUP AREA
The BSC Optical (49.5" dia) platform has been
installed in the
wooden chamber
model. Trial runs for installation & alignment
tests is expected to
start next week.
X-BEAM & Y-BEAM SPOOL BAFFLES
Work on detail drawings was is scheduled to
restart (#4) tomorrow,
FRIDAY.
OPTOMECHANICAL INTEGRATED LAYOUTS
The plan view for the LVEA in Hanford was
tentatively released this
week. The
elevation views should be available for release in
the next two weeks.
1.4.3.3 Modeling & Data Analysis (KB/HY/AL/SA)
Hiro:
multi mode field implementation in e2e (BB)
Multi mode implementation is going on well, and it
will take
more time to finalize, but basic tools are almost
ready.
"lens" - a new primitive module has been
introduced
in order to do higher-order mode-matching
calculations at
the coupling mirrors or at ordinary lenses. Tests
on coupled
cavities performed. Results show "lens" is
interacting well
(with accuracy) with other optical modules.
Some tests on m+n=3 order modes due to mirror
rotations
have been performed. Some time was spent on
cleaning up
various classes and modules.
mechanics modules interface in e2e (HY)
It turned out that the interace between the e2e
environment
and Chella's mechanics code needed some revision
to cover
complicated configurations. A new strategy has
been discussed
with Matt and a revision is going on.
Kent:
Data Analysis:
Kent Blackburn:
- Met with Tom and Albert to discuss potential
roles LDAS group and its
schedule could have in support of GDS.
- Met with three candidates for data analysis
software development. At
this time we do not have a strong prospect, but
are still interviewing.
- Worked primarily on two documents: "The generic
API's baseline require-
ments" and "The generic API's baseline
specification". The requirements
document almost complete, the specification
still needs work. Several
meetings were held with Phil and Dave to hash
out details of these two
documents. They are to be sent as background
materials to the NSF in
praparation for the review.
Philip Ehrens:
- Worked with Kent Blackburn and Dave Farnham to
prepare "The Generic API's
"baseline-specification""
- Rationalized the socket handling functions for
the
genericAPI.tcl script, making the resource files
and
calling conventions more consistent among
related
procedure groups.
Dave Farnham:
- Added sendElement, receiveElement, getElement, &
putElement commands
to generic API.
- Met with Kent & Phil to discuss the Generic API
base-line
specification.
- Modified xml classes to return exceptions to the
Tcl layer.
Anderson:
Re-investigated optical tape as a possible
archival media for LIGO. Since
the last contact in January'99 LOTS has acquired 2
government
contracts and plans to demonstrate a lab system
later this month. If the
technology comes to market in time it offers an
order of magnitude savings
in media costs as well as a substantial bandwidth
improvement over standard
magnetic tape recording technology. [AL Note:
I
will have an opportunity to visit LOTS next week].
Investigated some aspects of LIGO network security
and found one machine
that was broken into, 27 accounts that are not
password protected, and
several accounts with easily guess-able passwords.
Reading up on XML as a possible LIGO data format
with particular emphasis
on storing large binary data files.
1.4.4.2 General Computing (LW/TE/SS/BK)
MIT:
Nothing to report.
Hanford:
0. [AL Note] We have received official
notification from NSF and DOE that the DOE/NSF MOU
for Esnet access by LIGO has been authorized. We
have received 510 IP addresses. Now we need to
work through the logistics of WAN implementation.
1. Installing new software to be used with new
credit cards for account
managers. Working with Caltech to get software
and to setup everything
for a training session to be held next week.
2. Upgrading J. Berry's PC to newer, faster,
current version of system
and application software.
3. Assigned 254 Washington mountain and lake
names to new T1 subnet IP
addresses. These will be the computer names when
the T1 goes online.
4. Dave B. has the Autoclient pkg. working again.
A number of patches
had to be installed along with certain setup
procedures before he was
able to get things working on the new Ultra units.
Livingston:
1. Working on getting modem pool installed.
Presently, planning on getting
Techmaster to do the installation.
2. Preparing for mail/web server installation.
Larry W., Barbara K. and
Tom E. plan on meeting at the Livingston
Observatory Oct. 15-17 to start
installing the servers.
CIT:
1. (Barbara K.)Finished adding keywords to DCC web
application. New pages will be
installed soon.
2. (Barbara K. )Began work to integrate electronic
document index, DCC database,
and DCCweb applications. Attended planning
meeting. Reviewed programs written by
the student Rao 1) to maintain the
dcc/docs/current directory, and 2) to
produce an HTML version of the electronic document
index. Investigated
adding the electronic subject headings to the DCC
database.
3. (Barbara K.)Made a number of web site changes
including adding the new travel
procedures and a stub for the Amaldi conference.
Added a download for the
Livingston screen saver. Made several quick
changes.
4. Installation and debugging performed on pc's
located in labs at Lauritsen and
the subbasement of Bridge.
5. Multiple PC installations. The P5-90's are no
longer able to support the new
programs being put on them. We are in the process
of replacing a number of the
P5-90's with faster units. Some of the P5-90's
being replaced will be shipped to
the observatories (not to be used as replacements
for planned computers these are
in addition to the planned number), they may be
used for e-mail, netscape and word
processing.
6. A number of cable runs were made for computer
movement taking place.
7. Finished installation of color printer in
Millikan. Currently, setting up
computers to have access to that printer.
8. A couple of monitors have been replaced. Both
PC and SUN monitors are starting
to go out. Looking at both repair and replacement
costs for the future.
9. Multiple e-mail accounts worked on. As well as
modifying accounts Suresh has
been working on getting the aliases reorganized.
10. Multiple purchases are in place for both
hardware and software. Issues on the
maintenance contract for the SUN E3500 have been
clarified. Still working the
issue on the Ultra 60 problem at Hanford.
11. Working out some of the logistics to get the
new IP addresses for Hanford
going. There are some scheduling issues because of
travel, meetings and
conferences but it appears that the new IP
addresses should be ready for use by
the end of the month.
For I. Petrac did change order No. 3 to Schober Machine & Engineering, change order No. 1 to Superior Jig, Inc., change order No. 6 to Brookfield, change order No. 28 to MIT. Did change order No. 5 to K. Creath, "walked-through" is change order to accelerate an invoice payment.
Did letters to three bidders of RFQ IP-303 (Scissors Table Assemblies) Re: Notice of Selection of Hand Precision Machining, Inc.; also did letter to Hand Precision. Did PO PC281196 with CC Design Development, Inc. for Development & Delivery of End Test Mass & Pick-off Telescope Mechanical Drawings.
For P. Lindquist distributed Draft end of August Quarterly Report.
For S. Meshkov provided Visitor Proposal pages for revision; both hard copy and electronic versions.
Set up teleconference for the 2nd Detector Systems Preliminary Design Review.
Distributed: Change order No. 1 to Smithsonian Institute., and change order No. 6 to Brookfield.
Irene Baldon
Arranged and processed the paper work for 19 new trips to various locations. Only a couple of the 19 trips arranged this week were for the NSF Review in Hanford, WA. Hotel reservations (I have a block of 40 rooms at the Shilo Inn at $45.25 per night) and 5 van rentals have been arranged for. I'm looking for volunteer van drivers. If you can drive a van for me I would greatly appreciate it. Please let me know as soon as you can. These vans do not require any special license.
Worked on the ever present backlog of Expense Reports and completed 26 reports.
Performed miscellaneous duties as requested by various members of the LIGO Project here at Caltech, as well as for members of the staffs of each of the two (2) sites.
Prepared and distributed the Weekly Travel/Vacation Itinerary Report for LIGO Staff and Visitors.
Processed Hourly Payroll, incorporating various recent changes, new hires, terminations and the processing of Vacation/Sick Leave accounting.
Dorothy Lloyd is not here today.
Elizabeth Wood
Continued with the preparations for the NSF site review up at Hanford, including trying to find out just how many are coming and where we're going to put all the meeting groups.
Prepared and submitted a job requisition for an undergraduate student to work in Livingston.
Dealt with facilities requests for Bridge and Millikan.
Discussed the possibility of combining the LSC and LRC databases into one great big multi-purpose database with addresses, emails, and fax numbers. Stay tuned.
Dealt with the usual personnel matters.
For additional information about this report, contact sanders@ligo.caltech.edu