The Project Control Meeting
Agenda for Monday September 28,
1998 will be a Cost and Schedule Review
(Meeting time: 10:00 am Pacific Time)
Special Items:
Date: Thu, 24 Sep 1998 15:53:44 -0700
From: Fred Raab <raab_f@ligo.caltech.edu>
General Items:
--------------
Front Office:
-------------
(J. Berry)
Two weeks ago, I was in Pasadena for the Passport Class (our credit
card purchasing program). I think that the Passport system is going
to
be extremely advantagous to us here at Hanford, and the software is
very easy to learn and user friendly. Can't wait to get it loaded up
here!
This week I have been busy processing invoices, PO/PR's, and ATM
purchases.. I also sent in the reimbursement for our Petty Cash
account. As far as numbers go, I have processed in the past two
weeks
(mostly this week due to the holiday and traveling last week):
Entered 46 new PO/PR's in
my database,
Sent Dot 61 Invoices/Pkg
Slips to be paid,
Processed 26 ATM charges,
Processed 32 Invoices thru
Petty Cash
I have also been busy shopping/stocking up the two apts that we are
supplying for our visitors. They are almost fully self sufficient
(like at home). If you are one of our visitors currently staying or
planning on staying in either apt, please let me know if I have
forgotten anything.
Bake Oven:
----------
(K. Ryan)
Until recently, it was thought the calibration of the Bake Oven RGA
was complete and understood. However, late last week I discovered
that the electron multiplier gain value used during the previous
calibration determination was not optimized for the partial pressure
values that will be looked at when qualifying bake loads.
This had the effect of producing unnecessarily high noise levels.
These were of the same order of magnitude as the smallest signals we
hoped to measure. As a result, it was necessary to alter this
parameter and, in doing so, recalibrate. This was done and now I
believe that the RGA is setup correctly. More optimization may be
possible but at least the room temperature noise floor is well below
the least significant signal.
I will now work an putting together a working procedure that will
include:
Venting (Bake Oven system or any of it's three subsystems
(volumes))
Valving (Various open/closed status of valves for
routine
data collection)
Data File Generation/Manipulation (paths, naming
conventions
& importing)
Heater Controller Programming (program various ramp/soak
profiles)
RGA Calibration
Safety Issues
Belljar Flanging
Hoisting
Parts Loading (not cleaning see LIGO-9600022)
Remote monitoring
Maintenance
etc.
Seismic Isolation Installation:
-------------------------------
(C. Gray, H. Radkins)
Stan Whitcomb arrived to offer assistance.
Rough draft of HAM SEI installation has been passed around.
The 2K HAM Piers have been positioned; additionally the Adapter Plates
have been aligned on HAM 7 and a new method of alignment is being
checked out on HAM 8. If this proves accurate enough, we will eliminate
the optical surveying required for alignment on the HAMs.
Scissors Tables, next components due for installation on HAM7, have
been delayed on arrival at Hanford several weeks. Current game
plan
is to install Support Tubes and cleaned/leak-tested Bellows in to HAM7
and have it leak tested.
Hanford has received all the Grout Plates, Spherical Bearings, and
Crossbeams (except for the 2 BSC Crossbeams at HYTEC) for both 2K and
4k IFOs. These have been staged around the facility.
The BSC Pier Centering Jig Assembly setup numbers have been checked
and
corrected by HYTEC. We can now set up the Jig and lay out anchor
bolt
holes.
Dennis Coyne has arrived to offer assistance with SEI work.
Due to the arrival of hardware, the dates for installing SEI
components into HAM7 have been pushed back. Here is a schedule
for
installation events on HAM7:
* Grouting of HAM7 (&possibly other 2k) piers---> (week of 9/28)
* Opening of HAM7----> (10/5-10/?)
This includes either:
(a)installing the Support Tubes, Bellows (and possibly
Support
Table) and performing
a leak test--mainly for the Bellows.
(b)installing everything up to the Optics Table
and performing
a leak test (assembling the actuation
stacks concurrently)
* Assembling out of vacuum components (ie. actuation stacks, X-beams,
& V-Blocks)---> (10/12-16)
Electrical feed throughs have been partially installed into HAM 7 and
will also be installed into HAM 8 & 9.
SEI: The marks for anchor bolt holes for BSC Piers have started to
appear on the floor of the LVEA! Completed the FDR for BSC hardware,
only a couple of items on hold for 1st Article testing at HYTEC.
Protection for the bellows has been designed and is circulating for
review.
ASC: We are surveying in the LVEA to locate the grout plates for the
Optical Levers.
BSC 1st-Article Test:
---------------------
(H. Radkins)
HYTEC has been making final checks on drawings and building the bolt
kits; they should send a HAM kit to LHO for check out shortly.
The BSC assembly document is in progress; there is no release time
forcast at the moment. The Scissors Tables are not expected out
of
the machine shop until the end of September followed by a couple days
of assembly and shipping. Some 'stiction' of the air-bearing
has been
observed and HYTEC is investigating why. Actuation testing is
in the
planning and setup stage.
Optics & Lasers:
----------------
(D. Cook)
We have managed to bring the DI water system up to a measured 15
Megohm quality at six dispensing stations by continually
recirculating the water back to the purification station and by
utilizing proper plumbing materials etc. The station produces water
between 17 and 18 Megohm, measured at the source.
I will be recording particle counts in the following areas again:
1/ Under the 2K PSL laser enclosure.
2/ Under the 4K PSL laser enclosure.
3/ Under the HAM 7 soft wall enclosure.
4/ In the LVEA near the HAM 7 and PSL setup.
5/ In the Optics Lab
6/ In the Vacuum Prep. Lab.
7/ Two additional locations in the LVEA.
We have been running the floor scrubber in the LVEA on a regular basis
as well as vacuuming with a HEPA filtered vacuum, additional wet
mopping of several areas to improve cleanliness. Shortly after this
next burst of construction, shoe covers and tacky mats will be in
order. We will only be entering through two controlled entries for
both
cleanliness and laser safety. It may be possible to omit coating or
covering the floors.
Laser safety signs are being assembled and installed. The PSL laser
safety enclosure arrived on site Saturday and was assembled and
installed. We had erected a temporary enclosure, along with Temporary
Standard Operating Procedures until then. It didn't take long for it
to
take on the name of "Shanty Town". (It was reminiscent of a bunch of
kids building a fort in the back yard). It is, however doing safely
what it was intended to do. "Thanks" go out to the PSL Group for their
help and cooperation while we erected the enclosure.
Mike Smith and Jonathan Kern spent some time with me for a heads-up
review for the COS installation requirements.
The Florida IOO group is working on the SOS in the Optics lab.
They have a suspended a 3" optic and have successfully demonstrated
the
control system, which displays both in the lab and in the Control room.
We continue to receive supplies, equipment and components daily.
The Florida IOO group is working on the SOS in the Optics lab.
We continue to receive supplies, equipment and components daily.
Computing Systems:
------------------
(C. Patton)
Two Sun workstations have been setup in the Control Room. One
is
connected to the CDS network and (for now) one is connected to the
General Computing network. The cables are laying on top of the
floor
and the network connections are CAT5, until the holes can be drilled
in the floor tiles.
The .cshrc_global is being sourced by all users now. There are
still
some intermitten problems. They are hard to track down because
they
come and go and seem to fix themselves if the user logs in and out
a
few times. I think they are being caused by the automount not
mounting
directories immediately when requested. I'm still trying to figure
out
how to fix it. However, anyone typing matlab, mathematica, netscape,
etc. should see the appropriate software execute. Users logging
into
the server should also get a ligo applications menu, from which they
can
select the software applications. I'm still working on getting
the ligo
application menu on the other Unix workstations.
Electronics/Electrical Systems
------------------------------
(R. McCarthy)
Met with Sun River Electric to discuss various aspects of the Cable
Tray installation. The work should begin the week of Sept. 19th.
Assisted the PSL team with the initial set up of the PSL.
Worked on multiple phone system problems.
Worked with Valley electric on the trouble shooting of chilled water
pumps at the mid and end stations.
Beam-Tube Bake Out:
-------------------
(M. Lubinski, M. Guenther, K. Stiff and W. Althouse)
(F. Raab, reporting)
The tube is hot once again after a full-day shutdown last Thursday to
remove a failed cryopump (2nd unit to die!), regenerate 4 remaining
crypumps in beam tube enclosure, bring in an insulation crew to add
insulation to the Y-2 module fixed supports and reconfigure heating
blankets at pump ports along the beam tube enclosure (adding new
heaters and control circuits) to try to even out temperatures. To do
this, the power supplies were shut down and locked out from about 7
am,
when work started inside the tube enclosure, until about 10 pm when
the
last working cryopump was restored to operation and we could lock up
the beam tube enclosure. (We were limited by a lack of pumping capacity
- many of our auxiliary turbopump stands are in constant use by our
contractors at both Hanford and Livingston). Tube temperature dropped
from about 150 C to about 65 C during this operation and it took until
Monday to get back close to operating temperature.
The regeneration solved the problem of excess radiative coupling to
the
cryo cold plates which had started to overwhelm the refrigeration
capacity of the cryopumps. Cold plate temperatures are now stable
again. The new heating circuits installed took some adjustments in
control settings during this week, but we now appear to have good
temperatures at most ports. The insulation work and raising the average
tube temperature to 155-156 C has succeeded in getting the lowest
temp readings on the fixed supports to the "lowest temp" requirement
for the bakeout. The failed cryopumps were shipped out, diagnosed and
repaired. Both units failed due to helium leaks in the pressure gauges.
We expect them repaired units to arrive on site in separate shipments
in the morning and afternoon of 9/18. We are preparing people and
material to shut down bakeout again to reinstall these pumps as they
come off the trucks. We hope to be bake to baking by the evening of
9/18. Recovery should be faster as I believe we can have far fewer
off-line hours this time.
Rai Weiss and Cecil Franklin are up here to help with bakeout tasks.
We are trying to clean up some technical issues that will allow us
to
set a time for terminating this first bakeout. A remaining problem
to be fixed after all cryos are up is to diagnose and fix some low
temperatures on a port valve. Then we can get several contiguous (and
hopefully unventful) days of data with our full pumping configuration
to fit some trends and make predicitons. We then need to bake our
existing RGA system and install a 2nd unit (as yet unexposed to beam
tube effluents).
All in all this first bakeout has been effective at giving both the
equipment and manpower a thorough shakedown, as expected. Considering
the sheer tonnage of equipment and numbers of items used in this
effort, we are doing reasonably well. By round two, things should be
pretty polished!
Water influx through the conduit which connects exterior pullboxes to
the
control room is an ongoing problem. We have been vacuuming the water
out
from under the raised floor and, if it is a dry day tomorrow, we will
bail
the pull boxes to see if we can at least put a temporary plug in the
conduit until the pull boxes are raised.
Anthony Rizzi has begun to work with Alex Marin on assembly of the weather
stations.
Warren Johnson, Roger McNeil and Bob Svoboda spent Thursday morning
here.
We had more detailed discussions about how they (Roger and Bob) could
get
involved. Bob committed to immediately begin spending every thursday
here
on site (!). We will set up an LSU visitor office here to encourage
this.
Mignon Morgan, Program Coordinator for East Baton Rouge Parish's NSF
funded
science resource program, visited LIGO Wednesday. She had participated
in
Jerry Pine's CAPSI program at Caltech and has set up a program in Baton
Rouge that is similar to the one that Caltech assists in the Pasadena
public schools. She had many good suggestions for contacts and ways
to
begin reaching out to the EBR schools.
Four physics faculty from the Louisiana School for Math, Science, and
the
Arts visited Thursday afternoon to discuss how they can participate
with
their students in LIGO. This is a public residential high school in
Natchitoches (about a 4 hour drive from Livingston) that focusses on
math
and science and recruits from the top 5% of students around the state.
It
is a sister school to the Illinois Academy that Leon Lederman has some
involvement with. (Caltech LIGO students Yale Wang and Michael Hochberg
are
graduates of this school.) They are extremely interested in LIGO and
would
like to send high school students here immediately for visits and tutorials
about LIGO. They are starting up a program with Roger McNeil to do
some
similar activities at LSU. They require their students to conduct a
special
project during a one-week break following Mardi Gras. We came up with
a
number of activities that would be suitable for students to participate
in
at that level and which we will refine further. A strong advantage
of their
participation is that there is no startup or additional operating costs
and
travel arrangements are already being made by LSU in connection with
Roger
McNeil's program. There is also the possibility to develop "special
interest" projects that could be done by the students during periodic
three
day weekends for students that live close to Livingston.
WBS 1.1.1 Vacuum Equipment(Worden)
GNB has completed their portion of the work on all
but 4 valves at Hanford. Also, PSI has performed
the
soft closure test in the right end station. With
the
valve hot, a delta P of 10^-5 torr was maintained
across
the valve with only the weight of the gate carriage
holding the gate closed.
1. Gate Valves:
a. WGV11 (Y-end) Complete.
b. WGV12 (Y-mid BT) Complete.
c. WGV17 (Y-end BT) Complete.
d. WGV14 (X-mid) Complete.
e. WGV18 (Y-mid) Ready for in-situ leak test
f. WGV20 (X-end) Complete.
g. WGV16 (X-mid BT) Complete.
h. WGV15 (X-mid) Complete.
i. WGV19 (X-end BT) Complete.
j. WGV3 (LVEA-48) Ready for in-situ leak test.
k. WGV5 (LVEA-44) Waiting for bellows.
l. WGV10 (Y-mid) Waiting for bellows.
m. WGV6 (LVEA-BT) Ready for in-situ leak test.
n. WGV8 (LVEA-BT) Ready for in-situ leak test.
o. WGV1 (LVEA-48) 5 cycles complete. Ready for in-situ
leak test.
p. WGV13 (X-mid BT) Complete.
q. WGV4 (LVEA-48) Ready for in-situ leak test.
r. WGV7 (LVEA-44) Waiting for bellows.
s. WGV9 (Y-mid) Waiting for bellows and ball screw.
t. WGV2 (LVEA-48) Ready for 5 cycle test.
Date: Wed, 23 Sep 1998 16:11:53 -0700 (PDT)
From: Larry Jones <ljones@acrux>
a. Livingston Installation
The preview accumulation on the Y arm is being performed
during the night of 9/23. A minor incident had occurred
on approx. 9/17, when a hose was removed from a
Type B
pump port hardware setup without the isolation valve
(B4)
being securely closed. This vented the Y arm from
the -8
torr range to the -4 torr range. Recovery took a
day or
two to pump down again.
Leak checks were completed on the Y arm midstation
valve,
with no problems found.
Even though the turbo carts at Livingston have been
reworked to correct the logic that allowed module
venting
if the pump was restarted without closing B1, it's
still
important to close B1 before any change at the turbo
cart.
It was discovered that a "low speed" shutdown of
the turbo
closes the automatic valve as intended; however,
switching
the three position rotary switch from "turbo" to
"off"
passes through the "roughing" position, which reopens
the
automatic valve, venting the port.
b. Other Issues: VAT Valve Adjustments
VAT valve adjustments at Hanford are nearly complete.
Date: Wed, 23 Sep 1998 11:05:38 -0700 (PDT)
From: "Fred B. Asiri" <fba@ligo.caltech.edu>
> 1.1.3 & 1.1.4 BTE and Civil Construction (Fred Asiri)
>
> >>Issues:
> Hanford:
1. New Staging and Storage Building, request for approval
of
contract has been sent to NSF. Pending
NSF approval to award
the contract to George Grant Construction.
2. The asbuilt drawings in"pdf" fornmat for the Hanford
site
has been completed.
> Livingston:
1. The asbuilt drawing is being prepared by Parsons.
They will be
completed in by this Friday.
2. Hensel Phelps (Genral Contractor for Buildings)
has been put
on notice concerning continuing
evidence of roof and building leaks
at the corner station. Also, they
have been notified about the
blistering of the side wall pannels.
In addition to formal letter
by Parsons, Mel Weingart will
call Hensel Phelps main office
to express Parsons concerns about
the above continuing problems
and ask for a speedy action by
them.
3. I have asked Parsons to extend Bob Beter
( Parsons Field Engineer)
to stay on site at least
until Oct.15, 1998.
Date: Thu, 24 Sep 1998 20:43:10 -0400
From: David Shoemaker <dhs@ligo.mit.edu>
----------------------------------------------------
DETECTOR GROUP -- Whitcomb/Shoemaker
(WBS 1.2, 1.3)
----------------------------------------------------
#DHS We wish Jennifer all the best; no 40m report this week.
----------------------------------------------
Interferometer Sensing and Control -- M Zucker
(WBS 1.2.1.1.6, 1.2.1.1.7)
----------------------------------------------
Initial alignment installation (Zucker)
----------------------------------------
MZ met with Kevin Roush of Rogers Surveying at LHO to obtain final
as-built results for LVEA/VEA initial alignment survey. IAM markers
were
all laid per plan except for 3; IAM-4 interior marker had to be moved
slightly to avoid a pipe, and the 2 primary exterior beam tube markers
for the corner (IAM-3 and IAM-12) were installed at the emergency egress
points rather than at the pump port access doors (i.e., 360 feet short).
While this in principle reduces the baseline of the main IAS azimuth
shot by about 1/2, Kevin indicates that our net end-use accuracy may
be
unchanged since the reference monuments available at this location
are
expected to be of higher quality (about half the estimated systematic
error in net position).
Hugh Radkins started laying out optical lever grout plates for us using
a rented Sokkia total station theodolite in the LVEA. We are still
waiting for Caltech to cut a PO for the mounting hardware. Hugh can
work
around this temporarily but it is a source of frustration.
8 of the 9 MMT-type optical lever stands arrived from the vendor. (#9
(Y
end station) is being held at MIT for fit check of mating assemblies.)
They were packaged and crated improperly and arrived badly banged up.
Paint and catalyst are being sent up to LHO to touch them up; we're
dropping the vendor from future bidding.
The MMT3 optical lever laser and receiver assemblies arrived at LHO
from
MIT. They arrived in good shape. MZ tested optical alignment,
power
and beam quality in the cleanroom; all OK.
Also received 3 each video camera port housings and chamber illuminators
at LHO from MIT (all req'd for IO installation); also in good shape.
MZ and Dave Barker tested a Sony XC-75 beam monitoring camera with the
Fore Systems ATM video transmission system. Video performance was not
adequate using the Sun software decompression (too jerky), but was
excellent using a Fore hardware decompressor. Dave and Rolf are
looking at
getting this kind of hardware decompressor on a PCI card to go in the
Sun. In parallel we are carrying a plan to pull a few coax lines from
the
LVEA to the control room and (possibly) occupy a dedicated video fiber
from
each end/mid station to handle the 5 most critical video channels per
IFO.
MZ delivered final viewport installation drawings to S. Whitcomb and
walked through installation. Fritschel and Daw are working on
installing some ports Thurs. and Friday on WHAM7 and 8.
IAS and WFS fabrication (Zucker for Mason, McInnes and Smith)
--------------------------------------------
KM completed drawings for theodolite autocollimator adaptation and
issued for fabrication. MS continued procurement and misc. designs
for IOT7 WFS table, plus BSC-type optical lever support design.
MM assembled, tested and shipped 8 assemblies of 4 types to site
(see above).
ISC controls implementation (MZ)
-----------------------------
Held meetings 9/22 and 9/23 at LHO to map out software implementation
for
ISC and GDS interface thereto. We accomplished our objectives, including
- adopted modular hw/sw architecture compatible with
DAQ and GDS
systems
- agreed on primary software requirements
- developed outlines for software module interface
control documents
- divided work among sites and workers
In particular Fritschel and Daw will tackle supervisory control and
GDS/DAQ interface modules at MIT while Heefner and Robison will code
the
front end control algorithms at Caltech. We will put together a complete
VxWorks development system at MIT to allow concurrent code development
and cross-comparison. We are tentatively heading for an integrated
system test for April '99.
Also while we were together Dale Ouimette, Dave Barker and Daniel Sigg
gave tutorials and status reports on the timing, DAQ and GDS systems,
respectively. Lori also gave Peter and Ed some extremely valuable
intro lessons in Epics etc.
LSC lock acquisition (Ware)
---------------------------
No report.
-------------------------------------------
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
--------------------------------------------
- The laser area enclosure has been erected over the 2k IFO IOO/PSL
optical
table. This enclosure permits unattended running of the 10-W
laser.
Operation of the 10-W laser is now covered by the LIGO Hanford SOP.
The erection of the laser area enclosure notes the
demise of the
temporary laser enclosure, affectionately known as "Shanty Town".
A piece
of civil engineering not seen since the days of the pyramids and the
height
of the Roman Empire.
- The 10-W laser (#103) shipped up from Caltech was replaced with the
unit
at the site (#102) because of an observed degradation in the output
power
and beam quality of the laser. Despite a careful realignment
of the laser,
the output power was below 10 W. It is suspected that one of
the thin film
polarizers was misaligned during shipping.
- The pre-modecleaner has been installed on the optical table.
Input/Output Optics -- Dave Reitze, UF
-----------------------------------------
No report received.
Core Optics Procurement and Metrology -- GariLynn Billingsley
-------------------------------------------------------------
The IR interferometer is scheduled for delivery September 25th.
Acceptance testing will start on the 26th.
Acceptance testing at Veeco concluded after one week on September 22nd.
Action items remaining were concerned mostly with software fixes.
One
major hardware issue remains: There is not enough attenuation
in the
current design to allow for testing of HR surfaces. This was
discovered
September 22nd. Veeco demonstrated an approach for fixing this
problem,
it was found to not degrade the performance of the interferometer.
They
are working on implementing the solution, it will not be ready for
CIT
acceptance testing this weekend, but system stability should be
demonstrated without it.
CSIRO has shipped BS05, and is busy repolishing BS01-04.
NIST has completed measurement on SPETM07 and 08, they are both quite
smooth, we still need to see data on the radius of curvature.
Heraeus is keeping us posted on status of the "SV" material, which has
low
absorption. Currently they quote 7 months delivery and prices
comparable
to what we paid for our current glass.
Core Optics Coatings -- Helena Armandula
--------------------------------------------------
REO Contract - COS's coatings. Four ITM's have been coated; they are
undergoing annealing and they will be shipped to Caltech early next
week.
Early inspection at REO showed they were within specs. We are
prepared to
support REO with their QA procedures and cleaning process on all future
coatings.
Indium seals: Working on a repeatable process.
Core Optics Support -- Michael Smith
------------------------------------
BEAM-DUMPS:
The redesigned beam-dump has been checked, and the glass support structure
stiffness appears to be adequate. However, the vertical support structure
which allows the glass structure to tilt was not rigid enough, and
will be
redesigned by Ara. The redesign will also simplify the mounting structure
to the horizontal cross beam. The hinged brackets for mounting the
horizontal cross beam to the BSC walls are being designed.
ITM BAFFLE:
A. Rosa has completed the design of the COC baffle in the mid-station
and
end-station. The design is identical for the X and Y arms. However,
a
recent discussion with Mike Z. indicates that the baffle needs to be
moved
slightly and modified so that the reflection of the IFO beam off the
baffle
surface which hits the WBE-5 manifold wall can be viewed through an
optical
port, to assist in the initial pointing of the IFO beam prior to lock
acquisition. Similarly, in the mid and end stations, the image of the
reflected beam from the surface of the baffle needs to be visible through
an oppropriate optical port.
ETM and PO Telescope-
A preliminary design review for the mechanical design of the PO telescope
will be held by CC Development at CIT on Friday 9/25/98.
Optics 1 was tasked to perform a mechanical tolerance analysis
of the PO and ETM telescopes. The results will be completed by 10/2/98,
and
will be incorporated into the final desigin of the PO and ETM telescopes.
Angel is completing a 3D outline drawing of the ETM telescope and mounting
structure, which will be located on the SEI platform in the mid and
end
station BSC chambers as additional design data for the ETM telescope
optical train design.
FARADAY ISOLATOR SYSTEM
The half-wave plate will be incorporated into the specification for
the
Faraday Isolator, and made part of the procurement package.
INSTALLATION PLAN
Mike S. and Jonathan spent two days at the Hanford site to determine
the
logistics of installing the COS equipment.
--------------------------
Isolation Group -- M. Fine
--------------------------
Seismic Design (Mike Fine)
--------------------------------------
1. Air Bearing Performance Testing:
Hytec has been having some problems with stiction in the air bearings.
The latest plan has been to remove some of the mass and see if
they can be floated. The mass elements were removed from the
system.
The air bearings continued to show evidence of stiction between two
of the
bearing surfaces. Specialty Components gave Hytec the go-ahead
to disregard
the stiction and move the system. During the past several days,
the air
bearings have been on regularly. The performance appears to have
improved
because all four bearings appear to be floating without evidence of
stiction.
The suspicion now is that there was some trapped debris and/or moisture
inside
the bearings reducing the bearings lift capacity. The bearings
are currently
supporting more than the HAM load, at 120 psi. Hytec's next step is
to
investigate the BSC loading conditions and make appropriate recommendations.
2. BSC Coarse Actuation Testing:
Hytec has successfully driven the actuation system 12700 microns
#DHS: that's half an inch,
I think
in a single
direction without any sign of binding. The system has been moved
in
horizontal directions, U and V. Hytec will be driving in the
vertical
direction next week. A full range of motion translation in all
directions and rotational motion tests will follow.
3. BSC Structure FDR:
The BSC structure FDR was held this Tuesday. All structural (Allied)
components
are cleared for production except BSC downtube for which Hytec raised
concerns about the weld quality. We maight want to explore the option
of drawn tube or forging.
Suspension -- (Janeen Hazel/Mark Barton/Mike Fine)
-------------------------------------------------------------------
1. LOS Welded Structure:
Received the quotes for LOS2 and LOS3 fabrication from Brookfield.
They are
~$3600/weldment more than an LOS1 because the quantities are small
(20 LOS1s
compared to 4 LOS2s and 3LOS3s). Waiting for more back-up information
before
making change order to the PO. Brookfield is 4 weeks behind in completing
a
successful welded structure with drain slotted brackets. They
are due to
have
one complete next week.
2. Alignment Fixtures:
Janeen visited Superior Jig Wednesday to status their progress and
troubleshoot
realtime. She also reviewed with the machinist in charge their follow-on
order for guide rod fixtures. They will be delivering the alignment
fixtures
on time next week.
3. LOS Fixtures:
Received copper caps for earthquake stop tips. The soft copper will
act as
a shock absorber on the end of the silver plated stainless screws.
Janeen
will
have them annealed to make them softer.
---------------------------------------------------------
Detector Systems Engineering -- D. Shoemaker/D Coyne
(WBS 1.2.1.1.9)
---------------------------------------------------------
Global Diagnostics System (Daniel Sigg)
--------------------------------------
Tested the stand-alone NTP server; works fine.
Finished the GDS side of the interface code to the network data
server; and implemented a reflective memory copy routine using
remote procedure calls to get channel data for test purposes.
Wrote the (GDS) test point interface code. Test point are used to
organize the many internal signals of the digital ISC servo systems.
Test points can be set and reset dynamically. When set the
corresponding time series are copied into reflective memory and can
be looked at through the network data server.
Ed D. performed some more tests with Labview, this time using code
from the GDS system. No problems were encountered in calling
external GDS routines from Labview and passing parameters/data
forth and back.
Peter F. investigated analysis algorithms needed for performing
diagnostics tests, i.e. filter/decimation, down-conversion, FFT,
cross-correlations, etc.
Physics Environment Monitor (Alex Marin)
-------------------------------------------
Shourov continue to work on the custom made signal
conditioner/amplifier/antialias filter which can be
used for magnetometers, accelerometers and seismometers.
The system will be soon tested at Hanford.
We are planning now the seismic and magnetic measurements
to
be performed at Hanford and Livingston. Some of them will be
performed simmulataneously (using two GPS systems).
One of us (AM) was in Livingston. Anthony Rizzi
was
appointed by Mark Coles to be the Livingston PEM liaison. There
were few discussions related to the PEM equipment installation.
In particular we discussed the weather monitor locations, as
well as the seismic sensor deliveries (seismometers) to be used for
monitoring the sites.
Also, a group from SLU will install next spring
a custom
made magnetometer used by AF for ionosphere studies. The advertized
sensitivity is of 1 pTesla at low frequency.
Optical Contamination (Daqun Li)
--------------------------------
The overall ringdown and mode spacing data of viton have been analysed
with the results forwarded to members of the Vacuum Review Board
for
final approval of viton before changing to the next test material ("dirty"
aluminum and air baked steel) with this cavity.
The ringdown data of the empty cavity (cavity 3) once again jumped up
and down wildly, 2 ppm in total cavity loss in two days (not in two
weeks
like last time). This instability problem is under investigation
by either
monitoring the chamber temperature (The fact is chamber is temperature
stabilized) while taking ringdown data or replacing the ringdown detector
with a quieter detector.
The PC assigned to the Loss Scanner has been finally set functioning
after tedious hardware and software installations and configurations.
This computer has two serial ports, one GPIB board and one multi-channel
data acquisition board ready for programming.
-----------------------------------------
Control and Data System -- R. Bork
(WBS 1.2.2)
-------------------------------------------
Suspension
==================================
- The suspension test stand in the Hanford optics lab is now operational.
The
test stand and operator displays were used to hang and balance the
a small
optic.
- The suspenion DAQ daughter card (whitening filter) boards have been
received. One should be stuffed and tested next week.
- 50 production satellite amplifier boards have been received and will
be
sent
out for stuffing next week.
ASC/LSC
====================================
- An ISC meeting was held at Hanford on 9/22 and 23. The initial architecture
for the ASC and LSC controls was agreed upon. Ed and Peter will be
investigating
and developing the requirements for the "Master CPU" and GDS interface.
Jay,
Dale and Lori will be investigating and developing the requirements
for the
front end servo controllers. The structure of the reflective memory
module
that is the interface between these two systems is currently being
developed.
- Two optical lever PD boards have been stuffed and will be sent to
MIT next
week. 23 additional boards have been received and will be stuffed as
time
permits.
PSL
===========
1. At the time of writing, there is light on the PMC cavity and
we are
close (1-2 Hrs) to attempting to lock the PMC servo. The PSL
electronics
are essentially complete but largely untested with light at this time.
2. Some minor troubleshooting is still in progress for the PSL
electronics
including such things as ADC channels not reading correctly and binary
input module channel assignment problem.
3. We (the PSL team) will be leaving Hanford on Friday and anticipate
returning to Hanford for testing after a week back at Caltech.
4. The prototype Pockel Cell Driver was delivered to Hanford on Monday.
It is
ready to test on the PSL.
Data Acquisition
=================
- Met with LDAS group to discuss possibility of CDS Network Data Server
(NDS)
sending data out on the net with the LDAS XML format. It was decided
instead
that the NDS would provide an option to send data out in FRAME format,
the
FRAME containing only those data channels requested for the time period
requested by the client.
- Continuing software development, with a goal of moving the DAQS server
and
controller hardware/software to Hanford week of October 12.
- Fabrication of cables for connection of DAQS interface panel to ADC
modules by
outside vendor should start next week.
- Request for quotation on LEMO cable fab (for connection of suspension
controllers and GPS timing to DAQS) is out; all materials on hand and
cable
fab
should begin next week as well.
IOO
===================
Corrections have been made to the MC Demod board layout. Monday our
PC
layout expert will check it over again and we will try to get it out
for fab
next week. The EO Shutter Control is waiting for new HV supplies to
arrive.
Timing System
======================
We begin testing the Level 2 clock fanout today. The clock tester boards
arrive. We will load one and test it. In about a week we should be
testing
the whole GPS clock fanout system with a GPS module. GDS is planning
to use
an ISC-115 to generate test signals. We are checking the requirements
for
the clock timing from the GPS clock fanout. There may be another module
to
build.
| 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 |
| Action No. | Description | Responsibility | Assigned Date | Due Date |
| 1 | Prepare Operations Work Plan Budgets for FY 1999 Proposal | Lindquist | August 6, 1998 | October 1, 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 | October 8, 1998 |
| 7 | Funding for Louisiana Access Road | Stapfer | August 20, 1998 | October 8, 1998 |
| 9 | Move Responsibility for Hanford Travel to Hanford | Jasnow/Lindquist | August 27, 1998 | Closed |
| 10 | Procedure to Cover Late Charges for Invoice Payments | Jasnow | August 27, 1998 | October 8, 1998 |
| 13 | Form Letter for Requesting Travel to the Sites | F. Raab | September 10, 1998 | Closed |
| 14 | Secure Domain Name for Livingston System | G. Sanders | September 24, 1998 | October 1, 1998 |
| 15 | Set up Off-Campus Accounts for Site Travel | P. Lindquist | September 24, 1998 | October 1, 1998 |
Visited the Defense Reutilization Material Office (DRMO) at Keelser AFB on September 17, 1998 and acquired the following items: Distortion Indicator (1 each @ $3142.73), Electrical Test Set (1 each @ $5142.24), Multimeter (1 each @ $1750.00), Spectrum Analyzer (3 each @ $10659.53 x 3 = $31978.59), and Oscilloscope (1 each @ $1066.05), totalling $43,078.61.
Prepared and forwarded a Transfer Order (Standard Form 122) and a Screener Tally Request (DRMO Form 103) to the National Science Foundation's Property Administrator for Signature.
Completed the actual cost to date reconciliation between LIGO and Caltech finance reports. Still outstanding is the $2.6K difference in account 5N510 which Cindy and I are working on.
Completed the budget replan effort for the COS and Suspension Fabrication accounts in COBRA. Incorporated any comments from draft reports and finalized the Cost Perfromance Reports and Scheduled/Performed/Actuals (SPA) reports and distributed to Task Managers. Continued to work with the auditor on getting the actual costs into the correct accounts and correcting the beginning balances on some work packages.
Initiated update of the Responsibility Assignment Matrix (RAM) and the Contingency Log with August 1998 data.
Began preparation of the presentation materials for the Cost/ Schedule
Review on Monday, September 28.
Finished updating the ISC schedule. Final schedule was delivered to the task manager for review.
Facilities schedules were updated, Detector and Facilities schedules were merged and a new PLM chart was created. Schedule delay charts were created from data gathered from the PLM for use in Monday's Cost/Schedule review.
Archiving the August schedule. In process of creating a hardcopy of the August Detector and Facilities schedule. When completed the files will be backed up and stored electronically as well.
We have received NSF approval of the proposed contract for the Hanford Staging Building with George Grant Construction. The contract will be submitted for approval here.
A contract modification is being issued to DEMCO to add the construction funds agreed to by the CCB to cover electricity at Livingston for the remainder of FY98 and the first half of FY99.
A purchase order is being prepared for MCA Communications to provide the fiber optics and telephone trunk lines for Livingston. This purchase order wil be for about $78,000.
Modification No. 13 is being prepared for the CB&I contract to cover various items, in the amount of $140,000.
Additional funding in the amount of $30,000 is being provided to Parsons to cover finishing activities at Livingston.
A consulting agreement in the amount of $4,000, plus travel, is being prepared for Philip Krider to perform a lightning protection audit at both sites.
The auditor has reviewed the beginning balances for a number of accounts. The beginning balance for 5D532 Supplies and Expenses appears to include a number of entries for petty cash reflecting the use of the checking account in Livingston. Since this is an overhead bearing account, this appears to be an error and is being looked at.
We held a meeting to discuss simplifications of the process of moving unliquidated encumbrances between accounts. The outcome is that Michael Butler will prepare a form with the required information to be filled out by the task manager or subcontract manager. This form CANNOT be used to add funds or to move funds to an account not previously identified on the Purchase Order.
This sytem is fraught with hidden hazards. Any attempt to move actual costs requires multiple steps: 1) create a commitment in the account to which the actual costs will be moved, 2) move the costs, 3) relieve the commitment in the account from which the costs were moved. All of this happens in IFIS, the Financial computer database. However, these changes arel not reflected in PPS, the Procurements database. This means that subsequent attempts to pay against this purchase order could easily generate an "insufficient funds" message in PPS. Any CREDIT in IFIS is NOT reflected in PPS. I don't know how to resolve this problem! Previous requests by Accounts Payable to ACS to fix the problem have drawn the response that ORACLE is coming and they will not allocate the resources to fix the old system.
Still waiting for some draft material for the end-of-August Quarterly Report.
1.4.3 Systems Engineering
1.4.3.1 Systems Engineering & Integration (AL, DC)
__Integration Related Activities:
LLO Cable Tray Estimate
Bill Baldwin prepared a "should-cost" estimate for the LLO CDS
cable
trays. The estimated the length of the cable trays required in the
LLO is
1685 linear feet. Based on an inflated installation cost per
foot that may
be 125% higher than the LHO rate of $33.74 per linear foot, the "should"
cost
estimate for LLO is comfortably within budget.
Nomenclature Document
Bill Baldwin is putting finishing touches on the latest revision of
this
document.
__Analyses: Still working with Sears and Williams on providing web
access to the BT Bakeout DB. Lazzarini verified that the GUI front
end
(not yet conendcted to the DB) could run on tristan.it.edu as a tclet
within netscape (needs tcl plugin). If you are keenly interested please
see
http:\\www.ligo.caltech.edu/~lazz/bakeoutcodes/bakeoutTcl.html
[AL NOTE: no guarantees implied or given -- at least not yet].
__Reliability:
Continued gathering and reading available documentation on the
Integrated Sensing and Control System (ISC) in support of the Fault
Tree/Availability Analysis.=A0 Developed initial=
Fault Tree structure for Wave Front Sensing at Hanford Observatory.
In support of the Wave Front Sensing fault trees, I performed
reliability predictions using RELEX 217 on the Sensor Head electronics
and the Demodulator Module
__Integrated Layout/Drawings:
X-arm & Y-arm SPOOL BAFFLES
Detail drawings are in process. No completion schedule
determined at
this time.
SEISMIC BALANCE WEIGHTS
All quotes have been received and vendor selection
is in process.
Deliveries to start in October.
__Mock-ups:
ELEVATED PLATFORMS
Sample platform scheduled for delivery next Tuesday,
approx..
Alternate platform in discussion stage.
1.4.3.3 Modeling & Data Analysis (KB/HY/AL/SA)
Hiro;
multi mode implementation in Adlib
* All the primitives for performing field operations (i.e., field_gen,
sideband_gen, phase_adder, power_meter, pd_demod - the detector,
propagator, mirror) have been upgraded so that, in one run,
they can
EITHER (i) handle single_mode field, OR (ii) handle multimode
field or
single_mode field by treating the latter as a special case of
multimode
field [this way(ii) of treating single-mode field is computationally
expensive but the difference may go away after we start using
Blitz++
library - once that happens, Adlib will be more developer-friendly].
* Power_meter module is upgraded so that the user may get power
in any frequency or any mode or in a range of modes or just
the total power
in all frequencies and/or modes... basically whatever power
he/she wishes
to measure.
* In mirror, for the time being, only the rotation operations have
been
incorporated (although we are ready with beam-shift matrices
whose
algebraic validation was completed) in order to keep our step-by-step
validation task simple.
* Validation being done with just-simple or more complicated experiments
...
Alfi - GUI for e2e
* Code revision is going on.
mechanics
* Cella is working on his mechanics simulation engine.
* e2e codes have been transfered to Cella's machine with instructions
how
to build binaries.
* prepared simple example description files, inputs and instructions.
Administrative
* Ed worked installing softwares on Spica.
Anderson:
Continuing to integrate SRL/LIGO networks. It is now rather painless
to
connect an SRL machine into the LIGO network and continue to get the
majority of network services from SRL.
Phil Ehrens:
* Installed more than 30 packages onto SPICA, including
Tcl/Tk, BLT, Expect, TclX, so on.
* Social Engineered a copy of the unreleased XML library
for Tcl. Yay!
* Met with Kent and Dave and discussed the design and
implementation of the Generic API.
Dave Farnham:
* This past week I have continued work on the light-weight data
format classes. I have added support for writing the data in
base64 with compression (provided by zlib).
* Working with Phil Ehrens, we have been able to transfer ADC Data
from the C++ layer to the Tcl layer using XML.
Kent Blackburn:
* Met with several members of the data analysis group to sort out
issues associated with the LIGO light-weight data format.
* Met with the CDS group to understand the data distribution needs
that are beginning to develop at the sights and find the best
near term solutions for those needs.
* Met with Dave and Phil on two separate occasions to discuss details
of the specific requirements for the genericAPI.
* Wrote of a "GenericAPI's base requirements" document and distributed
to LDAS group members.
* Met with Ed to discuss how to proceed with the installation of the
development utilities on SPICA and how best to make these available
to developers.
* Tested a tclet for the bakeout data and identified several puts
bugs that will not work under Windows.
1.4.4.2 General Computing (LW/TE/SS/BK)
MIT:
1. Continuing to upgrade machines to Solaris 2.6.
2. Installed Netscape 4.06.[AL NOTE: plus tcl plugin]
Hanford:
1. The .cshrc_global is being sourced by all user accounts.
There are
still some intermitten problems, but most application setups and global
aliases seem to be working.
2. The service contract for the E3000 server has finally arrived,
thanks to Larry Wallace.
3. Added quite a few new user accounts. Helped visitors
get their
laptops working on our network.
Livingston:
1. Interviewed a candidate to work part-time assisting in the system
administration duties.
2. Installation of the new PC's is taking place.
CIT:
1. Samantha continued on updating the documentation for the GC computers.
2. Multiple printer fixes. Also, were able to refurbish an old color
printer
which has been given to DCC to alleviate some of the work load on the
basement
color printer.
3. Put a few more computers on the 115 subnet which also required running
more network lines.
4. Resolved multiple purchase/contract issues. Still trying to resolve
the DOA
Ultra 60 at Hanford issue.
5. (Barbara K.) Installed application to search DCC database on internal
web
site. Had to fix two problems 1) access to electronic documents
from
workstations, and 2) file access privileges. Thanks to Dave Shoemaker
for
testing.
6. (Barbara K.)Investigated problems with DCC database when a document
number
needs to be changed.
7. (Barbara K.)Made several quick web page changes.
8. Updated some of the WEB access tables.
9. Added, modified, and removed a number of users. Working on preparations
for the large number of visitors that will be appearing in the next
few
months.
10. In the process of loading the latest set up Solaris patches so they
can
be installed over the next month.
Dorothy Lloyd
Continued processing heavy load of purchase requisitions, POs, change orders, check request, etc. as well as an extremely heavy load of invoices.
Followed up and tracked problems with invoice payments.
Continued to monitor and support the temp.
Irene Baldon
Arrange and processed the paper work for 17 new trips to various locations, including overseas.
Assisted some Oversight Committee members with travel and/or information regarding their meeting in Hanford on October 29th.
Started preparations for travel, hotel reservations (I have a block of 40 rooms at the Shilo Inn) and van (6) rentals for the NSF Review being held in Hanford on October 27th and 28th. Once again as soon as I know who will be attending the meetings I will ask for volunteers as van drivers.
Worked on the ever present backlog of Expense Reports and completed 39 reports. Hopefully I can do the same or more this coming week.
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.
Rita Torres
Just before and just after a week's vacation, the following took place.
For I. Petrac did final edits to Brookfield Machine change order No. 5.
For P. Lindquist distributed Draft ‘99 Operations Work Plan, and Construction Project Beginning Balances.
For W. Tyler formatted procedure M980101, distributed that and M980086 for review and comment. Also sent updated document list to Livingston.
Arranged for an exit eye exam. Reserved conference rooms for upcoming meetings, distributed memo Re: E980238 for D. Coyne/A. Lazzarini. Placed helpful labels on new copier in my office.
Elizabeth K. Wood
Arranged with Bill Kells to give tours in October of the 40M to two groups: one from CalState Northridge and one from a high school.
Met with Albert and John Saris about hiring programmers and databasers for LIGO. Also communicated with a hiring firm who has supplied us with a few resumes to consider.
Made travel arrangements to go to Hanford at the end of October.
Made a personnel request to HR for a temp to help Dot out from under her mountain of paperwork.
Continued making preparations for the NSF site review at Hanford.
Dealt with the usual personnel items.
For additional information about this report, contact sanders@ligo.caltech.edu