The Project Control Meeting
Agenda for Monday February 8, 1999 will be:
(Meeting time: 10:30 am Pacific Time)
http://www.ligo.caltech.edu/LIGO_web/9901news/9901main.html
Weekly
Report Highlights
Christmas colors in the LHO bake oven
First attempts to install large optics reveal lessons
First attempts at initial alignment at LHO
Are we using the wrong coax at GHz frequencies?
General Items:
--------------
(Fred Raab)
Facilities:
-----------
O. Matherny
Water System modification: Apollo is 82% complete with the water modification
project. The 8000 gallon tank was transported back to the factory for
re work.
It is scheduled to be back on site by the end of next week.
New staging Building: George Grant Construction Company placed the concrete
for the entire floor.
Compressors: We are in process of trying to get our money back from
Kaser, since they guaranteed that we will never get any oil in our
air lines.
No progress since last week.
Bake Oven:
----------
(K. Ryan)
LHO Vacuum Bake Oven A load #13 consisting of the
disassembled IO Baffle was
released yesterday. The RGA scan of this load
showed nothing unusual but the
visual inspection of the individual parts showed
that some of the silver plated
fasteners comprising part of the load had turned
green! Additionally, the
silver plated fasteners connecting the vacuum
bake oven parts rack
(semi-permanent part of the oven) to the baseplate
had turned green and red!!
The silver plated parts rack fasteners not located
near the baseplate did
not change color. This has never been observed
here before. Especially curious
is the fact that these parts rack fasteners have
seen many vacuum bake, heating
and venting (same N2 bottle as used with load
#13) cycles of various
temperatures and durations without the slightest
hint of a color change.
My initial theory is that the source of the reactant
may be the wire seal
gasket used for this load. It was the first gasket
of a new batch just received
and it too showed a dramatic color change on
the surface exposed to the vacuum
(from copper to bright red). This theory is perhaps
supported by the fact that
this wire seal was located very near those fasteners
that showed a color
change and relatively far from those which did
not show any change. Another
observation is that the loads prior to this one
consisted of optics (i.e.
vacseal) and that load #13 was the first > 80C
bake after a "vacseal" load. The
reasoning being that outgassing products from
the vacseal had been
contaminating the inner surfaces of the vacuum
bake oven and that a chemical
reaction took place during load #13 at its higher
bake temp of 120C.
Load #14 (rebake) consisting of one 10" and two 3" optics is underway
and
will be released on Sunday.
Seismic Isolation Installation:
-------------------------------
(C. Gray, H. Radkins)
HAM10 work: Crossbeams were installed for HAM 10. This is just a background
activity now because of more pressing work on HAM 7-9 and BSC work.
Crossbeams
are not connected to Support Tubes (which are still on jacks); need
to have
Scissors Tables prepared for taking load before Crossbeam/Support Tube
connection made. Other than that, installation of stacks for
HAM10 will not
take place until end of Feb. early March.
HAM7 work: Weights (500 lbs) installed--"permanent" and removable ones.
This
completes Seismic work for HAM7.
HAM8 work: All "permanent" and removable weights (500 lbs) installed.
Air
Bearings activated and leveling/elevation setting of Optics Table took
place. Clamps for electrical cabling were replaced. This
completes Seismic work for HAM8.
HAM9 work: Air Bearings installed. Doors removed--this was noteworthy
because
we didn't have to remove the addition to walkway which was installed
last week. which is fairly close to HAM9's eastern door. "Permanent"
and removable weights were installed (490 lbs). Some of the electrical
cabling was installed; one problem found was that some of the threaded
holes for the clamps were not threaded--workaround is being made.
BSC: No installation activities to report for the BSC other than again
the
checking off of items needed and preparations being made for the in-vacuum
installation to begin next week in WBSC8.
The mock alignment of MMT3 was completed on 1-30 with a few problems
identified for consideration; otherwise, the LASER autocollimater worked
fine at the distance planned.
Optics & Lasers:
----------------
(D. Cook)
Due to a lot of unfortunate
mishaps and unforeseen problems the MMT3 and RM
optics, as well as the IOO optics installations
were set back. As with
other first time events Murphy reared his ugly
head and pointed out our
short comings. Hopefully we will be installing
these components and doing
the initial alignment starting on Monday the
8th. We are making some new
installation tooling to assist in the placing
and alignment of the MMT3 and
RM optics into the HAMs. We did do a dry run
using the spare MMT3 that went
well and we were able to align it etc. This next
week should show a lot of
positive progress as a large number of people
gain a lot of experience in
different areas and will be available as stand-ins
if necessary.
Electronics/Electrical Systems:
-------------------------------
(R. McCarthy)
The cables for the PEM exterior temperature sensors have been installed
in
all five buildings.
A temporary setup of a seismometer and tiltmeter has been installed
in the
LVEA. The equipment is wired to the DCU and should be producing data
in
the near future.
Ran and termininated suspension cables from the CDS racks to the BSC's
for
FM1 FM2, ITM1, ITM2, and BSC4 satallite modules.
Thier are now functioning phones in each mid and
end station, located in
the Mechanical room. The number are 372-8236
X-mid, 372-8238 X-end,
372-8237 Y-mid, 372-8239 Y-end.
Beam-Tube Bake Out:
-------------------
(M. Lubinski, M. Guenther, and W. Althouse)
On Tuesday(2/2/99) at 18:32
we turned power on and commenced heating X1
module to 150C. We currently have the RGA monitoring
the tube. We did
have some difficulty with the RGA because of
a leak. This has prevented us
from getting a satisfactory calibration. We are
going to fix this and
rerun the calibration.
All of the transformers and the two power trailers have been moved from
Y1
to X2 and powered up.
Beam tube bakeout preparation: (Cecil Franklin, Kerry Stiff): We have completed the installation of all Beam Tube wall thermocouples on all four (4) modules. The beam tube is now ready for the Insulation Contractor. We have mailed out (5) five bid package from the Livingston site via certified mail. All five conformation cards have been signed and returned. We continue to work on the many task at hand in preparation for the Pre- Bid site walk schedule for 2-10-99. We are in the process of defining how to provide 4000 sq ft of storage space for the insulation contractor on-site. One option is to temporarily store the VE heater blankets off-site.
Optics & Vacuum Labs: (Jonathan Kern): The Culligan RO/DI
is on line, but still producing 10 meg-ohm water. Culligan was on site
yesterday and has ordered
new fittings to house the resistivity probe. Most of the optics hardware
has now been received from Opto-Sigma. Tool and component cabinets were
ordered this
week from LISTA. EXCEL has installed the laser safety sign and curtain
interlock. Capital Welding's rep is here today to spec out regulators and
filters for plumbing the labs with N2 lines. I'm planning to place them
in each fume hood, by the optics cleaning bench, near the bake oven, and
two in the overhead trays in each lab. If anyone thinks they are needed
someplace else let me know. The vendor is re-quoting the Laser Safety Enclosure,
incorporating a 2000cfm blower at Peter and Rick's suggestion. McBain
Instruments has markedly upped the price for our Dark Field microscope.
Helena Armandula is finding out how much use it is getting at Hanford.
Except for the translating stage McBain has plenty of parts so we've decided
the order can wait.I'm also working with Jordan and Mike Smith in support
of COS. Allen Sibley used his "persuasive" ways to have Varian fabricate
a 10" conflat viewport (at no cost) having a 2.5 inch clear aperture with
a fluorel o-ring seal to a 3 inch optical window. We tested the helium
leak rate and found it to be below < 10^-9 Torr-l/sec. This looks like
a workable alternative to the ISI metallized window sealing technique.
Allen suggested an improvement, adapting standard zero-length reducing
conflats to the task using bolted retainers rather than the threaded ring
I used in the prototype. I'm ordering components this week and we'll have
the machining done locally. I've prepared a spec for the windows alone
and sent them out for bid.
Facilities (Gery Stapfer): The mechanical contractor (Bernhard)
is conntinuing the work on the punch list. We have found several misswired
connections and an defective damper in the west end station as part of
a building control training session with Siemens. The asphalt contractor
has now completed the patches around the electrical
vaults along the service road. All the hardware for the BT enclosure
doors has arrived and WWC is in the process of installing and cheking fo
correct operation. We received the quote for fixing
the west end station wall paneles from Sicord. The cost will be less than
$5000.00 to get the bullet holes fixed. The sewage treatment plant
is back into normal operation. This is just in time, as the Louisiana State
Environmental people will be here this Friday to inspect our discharge
water.
Seismic Installation (Rich Riesen): Coring, roughing, and anchor bolt placement is complete for all piers in the LVEA. All grout plates have been staged. All piers have been cleaned and oxy-solved. Similar work at the X and Y stations is in progress. All staging of piers will be complete by 2/5.
Vacuum equipment (Allen Sibley): The lifting mast was erected and anchored. The cable tray for the oven signals and controls is now complete. Allen also assembled the documentation for the VE internal survey monuments that will be used in the LVEA and VEA's.
40 m Interferometer (Nergis Mavalvala)
---------------------------------------
The 40m is still vented. All four test masses were cleaned
and recleaned using CO2 snowflakes. The variable attenuator
was installed in the recycling cavity. Shutters were installed
in front of all test masses. In air alignment was completed
and chamber checkouts begun but the pumpdown is held up by
possible problems in the East End "shark". The
ancient shark
module, with an apparent history of failures, is being
diagnosed. (Our shark is not a fish with big dorsal fin, but
in fact an LED-photodiode device that is partially obscured by
the test mass. It detects test mass position on the shadow
sensing principle and is used for velocity damping of some
antique 40m suspensions.
The throughput through the in-vacuum Pockels cell
was measured
to be ~25%, compared to ~50% during an August
1998 vent. Another
cause of anxiety...
----------------------------------------------
Interferometer Sensing and Control -- M Zucker
(WBS 1.2.1.1.6, 1.2.1.1.7)
----------------------------------------------
ISC initial alignment (K. Mason, M. McInnes)
------------------------------------------------
The MMT3 optic was not available
to align, so we went through a trial
alignment in Hanford showing Hugh Radkins how
to use our alignment
equipment. After running through the alignment
procedure, the beam from
the autocollimator was on target in every axis
except vertical, with the
vertical axis off 85 mm. This discrepancy has
not been found yet. A
final position and orientation for MMT3 is being
calculated by UFL,
after which Hugh will set up the alignment equipment
and verify the
laser beam from the autocollimator gives us the
correct position.
The MMT3 optical lever was powered up and aligned to the trial MMT3
optic. The laser and photodiode were connected temporarily and found
to
be working properly.
Four kinematic base plates for the optical levers were shipped to
Hanford and should arrive next week.
#MZ note: With Allen Sibley and Jonathan Kern's
help we've agreed to
try and use the precision civil construction
monuments laid at LLO
during building erection to bootstrap the initial
alignment process
there. We are hopeful that this can save
us considerable time, money
and (most important) uncertainty over the relatively
complex process
required at LHO.
ISC supervisory control code development (Ed Daw)
-------------------------------------------------
This week I ironed out a problem with our GPS unit at MIT -
the cable from the antenna was too lossy at the
GPS civilian
frequency of 1.57542 GHz. RG58 cable loses 30dB
per 100ft
at this frequency. I am replacing the antenna
downlead with
RG-8/U or similar.
#MZ note: do LHO/LLO installations
with RG-58 suffer this problem?
Should we upgrade to (proactively)
improve reliability?
Secondly, I have been working with Peter Fritschel on naming
conventions for the ISC test points and data channels, and on
finalizing the form of the header files common between the
ASC front end servos and the back end ddcu.
ISC implementation (P. Fritschel)
---------------------------------
o Worked on a plan for the installation and testing of the mode cleaner
detection and controls system; distributed and discussed it with the
IOO folk.
o Working on the ASC EPICS controls for the upcoming test at Caltech.
ISC fabrication (M. Smith)
---------------------------
Optical levers;
Two pairs of optical levers were installed onto WBSC4. The wedges
for the
optical levers to WBSC7 were installed. There were some minor modifactions
needed but were easily made. The optical lever wedge required at WBSC8
was
placed on order with southbridge machine.
ISCT7 table assembly;
I placed the order for the mirrors and the quarter wave plate with
CVI,
placed the order for the Newport parts and placed the order for Coherent.
These should take care of new items needed. The rest should be
available
from current supply.
I started drilling holes into the optical enclosure for the accoustical
blankets. Hopefully I will finish it before the weekend.
Need to get new
accoustical blankets made because the vendor shipped the wrong type
and
need to remake them. Should be done in about two weeks.
-------------------------------------------
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)
--------------------------------------------
Lightwave 10W Laser Contract -- Jordan Camp
_____________________________________________
Examination of the 10W laser (#103) returned to
LW because of power degradation
has shown that 4 of the 8 power amplifier 20W
diode bars have degraded. LW is
pursuing this with SDL, the diode vendor.
The 20W diodes are used extensively
in LW's product line. We are monitoring the power output of #104, which
has
been running for 8 days with no change in power.
A serivce/production contract review meeting has been tentatively scheduled
at Caltech for Feb. 25. We will discuss performance of the 10W lasers,
reliability issues, production of future lasers, and our requested
enhancements of future lasers, including better intensity noise performance
(LW is looking at developing a new master oscillator
laser with lower
intensity noise, apparently having been stimulated
by our enhancement request.)
Prestabilized Laser -- Peter King
--------------------------------------------
- Measurements have/are being done to characterize the intensity
stabilization acousto-optic modulator (AOM). If the modulation
frequency of
the rf drive to the AOM is varied and the response of a photodetector
monitoring the undiffracted output is measured, what is observed is
an
approximate 10 dB roll off at 100 kHz. This is expected to be
flat. The
reasons for this result are not understood. Separate measurements
of the
rf driver and rf amplifier show that their individual responses are
flat
but when coupled to the AOM the result is not flat. The manufacturer,
Isomet, will be quizzed on this some time today.
- Components for the LLO 4k IFO are being assembled. Approximately
half of
the VME based electronics have been stuffed. All the optical
mounting
hardware is in hand.
- More pre-modecleaner bodies are in the process of being ordered from
United Lens Co., who supplied the other bodies.
- REO has been contacted about manufacturing the other PSL reference cavities.
- The PSL turbo pump stand used for evacuating the PSL reference cavity
vacuum chambers is being cleaned and baked. The vacuum equipment
suffered
from some contamination during the 2k IFO PSL deployment.
Input/Output Optics -- Dave Reitze, UF
-----------------------------------------
Task
Current Completion Date
__________________________________________________
PSL IOO installation
- optics on table
complete
- periscope on table
complete
- beam alignment
complete
- beam characterization
in progress (2/15)
Vacuum Prep
- suspensions
complete
- nonsuspended optics
complete
- suspended small optics
2/8
- suspended MMT3
2/5
In Vacuum Optics Installation 2/15
In Vacuum Alignment 2/15
Mode Cleaner Characterization 4/15
------------------------------------------------
Installation -
Towards the end of last week, four of the IOO SOS's have been assembled,
mirrors hung, and OSEMs installed. These are MMT1, MCFM-2, SM1, and
SM2.
MMT2 is ready to be hung, but MCFM-1 and MCCM had problems with magnets
falling off. (MMT = Mode Matching Telescope; MCFM = Mode Cleaner Flat
Mirror; MCCM = Mode Cleaner Curved Mirror) The magnets have been
reglued,
and the two mirrors are in the bake oven at LHO, with removal scheduled
on
the weekend. Qize Shu is at LHO and he, Haisheng, and Malik will rehang
these.
We developed a reproducible
test of glued magnet strength that we call the
"razor blade test." The procedure:
1. Clean a single-edged razor blade with acetone
and isopropanol.
2. Hold the blade with gloved hands,
_________________
best done by grasping the blade
-->|_________________|<--
between thumb and forefinger
|
|
as sketched at right.
| | |
|
3. Position the flat of the blade
|_________________|
above the end of the magnet and carefully
lower it towards the magnet til it sticks on
the end.
4. Let go of the blade, so that it is supported
by the magnet.
5. Pull the blade off the magnet. You can twist
the blade as you pull it or
pull it straight off. The latter requires considerably
more force, enough
to move a 3" mirror around in its container but
not enough to support the
mirror.
This test produced 1 failure last week in the
3" mirror magnets. This optic
had been cleaned. 2 Other magnets fell off during
cleaning, before they
could be tested.
We've started doing the test after gluing, after bakeout, and after cleaning.
Faraday assembly -
We have most of the parts to assemble the Faraday isolator cleaned and
at
LHO. The 8-32 socket set screws needed to assemble the polarizer and
wave
plate mounts for the Faraday should arrive this week.
We measured the single-pass isolation ratio of the Faraday rotator that
had been baked. The measurement was made at Hanford on the PSL table
using
the real PSL beam. In a power range of 2.9 W - 5.6 W, the single pass
isolation was better than 40 dB (LIGO requirement = 35 dB).
Non suspended mirror mounts -
The 2" mirrors have been cleaned and the mounts assembled. One mirror
was
installed to check fit. (It was OK) and then removed. The mirrors can
be
put in the mounts as they are needed in the chamber.
Opto-mechanical -
This week Aaron have been working on what I
hope are final revisions
on HAM 7 and 8, and reconciling the global coordinate with those that
Mike
Smith has.
Core Optics Procurement and Metrology -- GariLynn Billingsley
-------------------------------------------------------------
We are in the process of determining if measurements of 45 degree
components (FM, BS) are necessary at 45 degrees. A 45 degree
measurement is subject to more noise than a 0 degree measurement due
to
turbulence in the path length. The method is to compare measurements
taken at both angles. We are shipping 2ITM01 on Feb. 9th.
And plan to
ship FM01 by Feb. 17th.
Core Optics Coatings -- Helena Armandula
--------------------------------------------------
We have thought about the possibility of cleaning
the optics here. We did not pursued the idea because :
1) our facilities in here are short in space - we are going to take-up
a
day anyway and also need two people for the task
2) to cement the magnets and have a good bond, a fresh, cleaned surface
is
required. No matter how well we protect the surface, if the part is
not
kept under vacuum after cleaning, dust and hydrocarbons from the air
are
going to sit on the surface, that means, that before cementing the
magnets,
the surface has to get wiped with alcohol and acetone. If cleaning
streaks
(marks) from this cleaning are left in the mirror and are baked, they
will
be difficult to remove later.
Core Optics Support -- Michael Smith
------------------------------------
BEAM-DUMPS
Craig C. has completed elevation and plan view layouts of all
the cavity beam dumps in the BSC chambers. He is in the process
of
releasing shop drawings for the cavity beam dump assemblies.
PO TELESCOPE
All the parts for the PO telescope are being fabricated. Ken M. calculated
the cg location and weight of the telescope and beam steering optics
on
HAM9, to enable placement of the balancing weights.
ETM TELESCOPE
Ken M. is reviewing the shop drawings from CC Development.
PO MIRROR
Ken M. is still working on the mounting base of the PO mirror assembly
for
placement next to the LOS structures on the SEI platforms.
BEAM STEERING MIRROR and PERISCOPE
A slight modification to the steering mirror mount is being made by
the
vendor Dynamic Light. The replacement parts will be shipped early next
week.
VACUUM WINDOW
Jonathan and Allen Sibley tested a proposed design for the vacuum window,
which utilizes a standard conflat viewport with a fluorel o-ring seal
for
the 3 inch optical window. The helium leak rate was < 10^-9
Torr-l/sec.
This looks like a workable alternative to the ISI metallized window
sealing
technique. Standard
zero-length reducing conflats will be used to retain the window, as
well as
to provide a vacuum-tight protective cover for the window during
installation and vacuum chamber leak testing procedures. Jonathan has
prepared a spec for the
separate window and will send it out for bid.
NEW CONICAL BAFFLE at MID STATION
Design is pending.
TRIPLE FLEXURE BRACKET for BEAM DUMP
Mike S. completed the design and analysis of the triple flexure joint
for
attaching the cavity beam dump horizontal support structure to the
BSC
chamber walls.
ELLIPTICAL BAFFLE/BEAM DUMP
A purchase order has been issued to ASCO Engineering for the mechanical
assembly. And a purchase order has been issued to Hydratech for the
glass
fabrication.
IO BAFFLE, 2K
The parts for the IO baffle are scheduled for assembly on 2/5/99. A
set of
assembly drawings and instructions was sent to Betsy Weaver on 2/5/99.
A
complete documentation package will be released by the end of this
week.
ITM/ETM ARM CAVITY BAFFLE
Angel and Mike S. have almost completed the redesign of the ITMx baffle.
A
universal design for the metal support assembly is being implemented,
which
is identical for the x and y arms, and for the vertex and end stations.
The
glass portion of the baffle is different for the vertex and for the
end
station.
IFO OPTICAL COORDINATES
A considerable discussion has ensued over the correct global coordinates
and the orientations of the various SEI platforms, initiated with the
recent widespread discussion of the IOO mode matching telescope
configuration. It appears that a concensus has been reached. Mike S.
is in
the process of releasing a specification document based on input from
the
various task groups which summarizes the global coordinates of all
the
optical elements in the IFO optical train, and which describes the
global
positions of the optical centerlines of the 2K and 4K beams throughout
the
entire IFO.
INSTRUMENTATION BEAM
The ITM baffle and the ETM baffle have an in-line 3.25 inch diameter
hole
which will provide a clear line of sight down the entire length of
the 4K
beam tube beyond BSC2 and BSC4. The clear line of sight is below the
level
of the HAM SEI tables and therefore is blocked from HAM1 and HAM7.
INSTALLATION PLAN
item
completion date bake @ LHO install
date
Mode cleaner baffle
12/30/98
NA
?
IO baffle
1/11/99 1/28/99
2/5/99
Elliptical baffle
2/23/99 2/25/99
--------------------------
Isolation Group -- M. Fine
--------------------------
Seismic Design (Mike Fine)
--------------------------------------
1. Coarse Actuator Components:
Hand Precision began manufacturing the Air Bearing Mounting Plates.
We may
have a problem with the Daedal actuator shipment. Hytec has yet received
a confirmation of the delivery date for these actuators and will keep
us
informed of the progress.
2. Rack Assembly:
Progress is continuing on the electronics rack. The side panel layout
and
wiring is complete with the exception of the wiring to the pneumatics.
The
internal relays of the MUX are wired and have been installed on the
rack. The
MUX to NextStep amplifiers are being installed early this week.
The computer
will be installed then and connected to internal wiring. The electronics
are
expected to be completed (no debugging) at the end of this week, at
which
time, the electronic debugging and pneumatic installation can take
place. We
anticipate that the rack will be ready for electronic burn-in and system
level
testing by next week.
3. Near-Term SEI Hardware Delivery Schedule:
7 HAM bellows (Hanford)
2/5/99
2nd set of BSC in-vacuo hardware (Handord)
2/17/99
3rd set of BSC in-vacuo hardware (Hanford)
2/17/99
1 set HAM in-vacuo hardware (Livingston)
3/5/99
Suspension -- (Janeen Hazel/Mark Barton/Mike Fine)
-------------------------------------------------------------------
1. LOS Structure:
Brookfield has sent the reworked RM structure. It will be cleaned and
prepared
to go into oven on Friday night or Saturday morning. It can be at Hanford
on
next Thursday or Friday.
Brookfield sent the reworked RM structure to CIT last friday but the
structure had a rust-like residue inside of the legs and
stiffeners and on some of the brackets. Brookfield and its
subcontractor, Westfield Plating, insist that the part was pickled
before shipment. The structure was pickled again on Tuesday
morning by Priority Plating and the red residue is gone. It was
put in oven A Tuesday afternoon. It should be in Hanford Monday or
Tuesday, 2/8 or 2/9. Another D960133 LOS1 is being baked with it.
2. SUS Hardware Delivery:
SUS Structure Delivery Dates: [numbers in parentheses are quantities.]
LOS1(for ETM, ITM, MMT): 2/5(3), 2/12(2), 2/19(2),
2/26(1)
LOS2(for BS): 1st artcle on 2/15(2), 2/28(1)
LOS3(for FM): 2/12(2)*, 2/28(1)
---------------------------------------------------------
Detector Systems Engineering -- D. Shoemaker/D Coyne
(WBS 1.2.1.1.9)
---------------------------------------------------------
Global Diagnostics System (Daniel Sigg, John Zweizig)
------------------------------------------------------
Global Diagnostics System
(Daniel Sigg, John Zweizig)
John Zweizig
I continued to discuss the online analysis functions and data types
and
procedures for their implementation.
I Discussed with Database and LDAS experts about the structure of the
database
tables needed to record parameters, e.g. to trigger/filter applications.
These tables must make sense for the database and must be useful to
both
LDAS and GDS. I designed and started implementation of a parameter
storage
and access mechanism that is compatible with this database model (the
"access method" is used to set/save the parameter values in the application
memory, while the database stores the parameter settings with the triggers
generated by the application).
I continued work on defining and implementing the trigger reporting
software
that will be used to generate triggers, and the trigger broker that
will
distribute the triggers to the operator and to the meta-database.
Daniel Sigg
Worked on documentation. Talked with Steve Penn from Syracuse on how
to
get involved in diagnostic software development.
Physics Environmental Monitor(Matt Smith, David Shoemaker & Alex
Marin)
-----------------------------------------------------------------------
The delivery schedule (unchanged) is posted at :
http://web.mit.edu/marin/www/PEM_Delivery.html
Last week all the PEM team was working in Hanford. Matt is still there now.
1. The RGA was moved from BSC4 to HAM 11. We
will try to leak
check the RGA volume this week.
2. As mentioned last week, we tested the PZT shaker
assembly. We notice
that the initial reaction mass was to heavy.
- A new reaction masses for the PZT shakers were
designed and purchased.
- The electromagnetic shaker assembly was reworked
at the
local machine shop which will enable easier assembly.
- The spacers for the PEM interface plates were
ordered last week with a
two week lead time, so they should be ready for
installation into
HAM 7, 8, 9, and 10 next week.
3. A seismometer and a tiltmeter were installed
into the rack 2X1 for
temporary use and testing. Cables were routed to
rack 2X5 (three for the
seimometer marked Vert, North, Est and three for
the tiltmeter: 1 for x,
2 for y direction and 3 for temperature sensor).
Optical Contamination (Daqun Li)
--------------------------------
The viton pieces were removed from cavity one because no contamination
was observed with their presence in the cavity. However, the cavity
mirrors were found contaminated locally on the coating surfaces (5
ppm in
total surface absorption vs 1 ppm background) after viton's removal.
The
localized contamination was confirmed by measuring the losses at different
areas of the mirrors with a slight mirror rotations, and also by measuring
the losses around the same areas with a higher-order mode beam. So
far it
is not clear where the contamination came from and why it is localized.
The
matter is under investigation.
Still preparing to conduct the CO2 cleaning qualification with one of
the
contamination cavities.
Data taking is still going for air baked steel currently residing in
cavity
two with no contamination observed so far.
-----------------------------------------
Control and Data System -- R. Bork
(WBS 1.2.2)
-------------------------------------------
Near Term Installation
=======================
- Feb 6: Rolf at Hanford to finish initial DAQ for LVEA 2k signals.
- Feb 15-19: Jay, Dale & Paul at Hanford to finish IO ASC; install
Length
controls for mode cleaner; install large optic suspension controllers.
Data Acquisition
=================
- Finishing up drawing for rack 2X5 (PEM and IO data acq.)
- Completed data router and Data Client (software which allows users
to select
their channels of interest and have them stored in their selected
files/formats). Software will be installed at Hanford next week.
- Placed orders for Livingston VME equipment
Control Area / Networking
==========================
- Sun workstations for Livingston control room should arrive Livingston
2/5.
Input Optics
=======================================
- All database records, state code and operator screens for the 2K
IO controls
are complete and have been tested at Caltech. They will be tested in
Hanford
starting 2/15.
- Internal rack cables for rack 2X6 will be fab'd next week. and will
be
installed starting 2/15.
Suspension
========================================
- DAQ daughter cards for the 2K LOS controllers are tested and ready
to be
installed in Hanford.
- LOS controllers for rack 2X14 are being tested and should be ready
for
shipment next week.
- Field cabling for 2K LVEA LOS systems have been pulled, but not terminated.
- Internal rack cabling for rack 2X14 is being fab'd and will be installed
starting 2/15.
- Satellite amplifier chassis for the 2K LOS systems are being engraved
and
will
be ready by 2/5. Six amplifiers will be assembled and tested next week
and
shiped to Hanford for installation starting 2/15.
ASC/LSC
=========================================
- ASC front end software is being fine tuned and modified in preparation
for the
integrated tests to be conducted at Caltech starting on 2/22.
- Initial testing of LSC front end software running on multiple DSPs
in
parallel
has begun. A solution using multiple baja 4700s was tried but does
not
appear to
be
feasible as a solution for the LSC front end software.
The following change request has been submitted:
| CR-990001 | WBS 1.3 | Return Unused Budget for Construction Related R&D to Contingency | P. Lindquist |
| Action No. | Description | Responsibility | Assigned Date | Due Date |
| 17 | Louisiana Road Access | M. Coles/G. Stapfer | October 8, 1998 | January 28, 1999 |
| 19 | Consider Lawsuit Against Panel Manufacturer at Livingston | R. Pool/E. Jasnow | October 15, 1998 | January 28, 1999 |
| 21 | Letterhead and Business Cards for Sites | F. Raab/M. Coles | November 5, 1998 | February 18, 1999 |
| 27 | Acquire Design for Site Signs | P. Lindquist/E. Jasnow | January 28, 1999 | April 15, 1999 |
| 28 | Requirements for Site Dedication Support | M. Coles/F. Raab | January 28, 1999 | November 4, 1999 |
Preparing a Standard Form (SF122) to the National Science Foundation to acquire three(3) pick-up trucks and one (1) stake body truck from the Defense Reutilization Marketing Office (DRMO) China Lake, Ca. for use at the LIGO Livingston Observatory, expected delivery date 8-12 February 1999. Once received all requires Caltech's Insurance certificates will be issued.
Requesting an additional six (6) set of Government License Plates for the NSF for the following equipment two (2) Bake-out Trailers located in Hanford and the remaining four (4) set will be for the newly acquired truck at the Livingston Facility.
| WE Date | Incoming Invoices and Receivers | Wire Transfers | Large Contract Invoices | New Purchase Orders |
| 12/3/98 | 186 | 2 | 15 | 102 |
| 12/10/98 | 175 | 0 | 6 | 90 |
| 12/17/98 | 125 | 0 | 12 | 28 |
| 12/29/98
(two weeks) |
164 | 0 | 21 | 3 |
| 1/7/99 | 75 | 2 | 10 | 66 |
| 1/14/99 | 161 | 0 | 32 | 27 |
| 1/21/99 | 80 | 0 | 16 | 30 |
| 1/28/99 | 199 | 1 | 22 | 60 |
| 2/4/99 | 163 | 2 | 4 | 13 |
The IFB for insulation of the beam tube at Livingston has been released. A pre-bid conference and job walk has been scheduled for February 10, with bid opening scheduled for February 24.
Preliminary discussions are being held with designers for the purpose of producing permanent signs at the entrance to both sites. It is planned to have two separate competitions, one at each site, using a common set of graphics guidelines furnished by the project.
* Simulation
= Rick Savage visited CIT and started to construct the PSL subsystem.
The schedule of the future development is discussed.
= As a part of PSL, there is a pre-mode-cleaner. The slipping of x-axis
is necessary to properly handle odd number of mirror systems.
This is
set properly for primitive mirror reflections so that triangle
mode
cleaner can be simulated using primitive mirrors.
A summation cavity module for the mode cleaner using the standard
modal
expansion is being developed by Biplab. This will be used for
the
validation of the IOO version of mode cleaner.
= Rizzi Anthony came to CIT, and learned about E2E. The E2E software
on
Livingston is updated to the latest.
= Telescope and detector modules are built.
= Internal modification of Adlib was done to provide a new service.
= Jim rewrote the twiddle manual and Jim and Hiro discussed about the
release version of twiddle.
= Tomaru, a student of TAMA, will come to Caltech in the week of February
15 to learn about the FFT program which was installed in TAMA
last
November when Hiro visited TAMA.
= Hiro and Mike Hrynevych discussed about the FFT run using the real
LIGO
phase map. Hiro will setup stuff for Mike to start running the
FFT
program.
* LIGO Dana Analysis and Acquisition
* (JKB) Met with JZ, EM, XH to discuss table
design for the
GDS triggers. These table designs will also be useful
for the LDAS events. The meeting produced a design that
is more efficient than had been previously proposed.
* (JKB) Wrote a LDAS reliability section for
the PDR which
explains how the LDAS will find its software resources
and what the behavior will be when things enter an
abnormal state. Most of this is handled by the managerAPI.
* (JKB) Carried out several interviews with
software developers.
* (JKB) Met with Ed Maros to discuss the configuration
of the LDAS
system and how LDAS resources will be shared amoung the
LDAS hardware platforms.
* (PSE) Continued to work on polishing the
managerAPI.tcl.
* (PSE) Modified TclDOC to handle Tcl namespaces.
* (PSE) Began to work on the metadataAPI.
* (PSE) Coded a small GUI for Ed to use in
developing the
shared object code for the matadata API.
* (PSE) Installed some software on spica.
* (DF) I have continued working on the FrameCPP
library. It
is approximately 90% complete at this time and is under-
going testing.
* (DF) I am continuing to work on the Frame
API, this is also
being used to test FrameCPP.
* (EM) I mostly worked ont the metadataAPI
this past week.
(1) Configured to use autoconfig and automake to simplify the
building process.
(2) Wrapped the api into a package.
* (EM) Explored the possibilities of cfengine
for keeping a network
of machine properly configured.
* (EM) Started thinking about the file structure
of the LDAS user
system vs. the developement system.
* Computing
MIT:
The Livingston modem pool unit is being shipped to Hanford from MIT.
MIT has received their SUN upgrades.
Livingston:
Waiting for monitor replacements on the new SUN units that have been
received.
Tom is working on getting the new units OS installed and is setting
up the
NIS+ tables to accommodate the new systems.
There is a meeting scheduled for Feb. 24th with LSU, Bell South and
LIGO
representatives to discuss vBNS and fiber installation to the Observatory.
Hanford:
Larry Wallace is working on getting the email server setup for LHO.
Followed up on the replacement AutoCAD key, they are still promising
it
any day now. Followed up on orders for more network hubs, should
be
here this week. The High School student helpers have gotten the
tables
put together and the P5-90 PCs setup. They had to reinstall Windows
and install the usual e-mail and Xwindows software. The two P5-90s
should be in the LVEA for general use by the end of this week.
Larry installed new patches on the web server, installed a few NIS+
scripts on the server and updated a number of items to improve
connectivity between the web server and main GC server.
Larry met with PNNL to discuss network connectivity. PNNL is in the
process of installing a direct OC3 connection to Seattle (via the
University). They are also working on getting a direct connection to
the
vBNS cloud as well as the NTON cloud. Cullen was passing the information
on to see if LIGO was interested in getting on the new network
connection. A number of people at LIGO will have to go over the material
and more information gathered before an official response is made.
CIT:
The group is currently working on the new e-mail server to replace the
sparc5 unit known as acrux. We have decided to install qmail to see
if it
will ease some of the e-mail configuration issues.
Along with the new e-mail unit a number of new workstations have been
installed and work is going on to upgrade the unit named ligo.
Suresh and Larry are working on a number of new procurements which include
workstations, PC's, networking equipment and other misc. pieces that
are
being installed.
Sean has been able to load a new OS rev. on to the Livingston box which
was needed before putting on the latest revision of the OS. Also, he
and Larry
have upgraded the memory on the Livingston box.
In the process of adding a couple more modem lines.
Barbara K. Enhanced the DCC process for repairing a keyword. Began
to add
a companion process to repair the author and distribution tables.
Added
some defensive programming. Bundled both processes along with
the
2-keyword-search tool onto a tab form and installed it as a Utilities
item on the main
switchboard.
Began investigating changes to DCC for Y2K. According to the
documentation, all the date fields should work as they are now defined.
Data entry edits need to change and a sort field may need to be added.
Installed the January issue of the newsletter on the web site.
Spent time
on several quick Amaldi items and on the Operational Procedures list.
A number of new accounts have been added.
Working a number of LDAS issues both at Hanford and CIT.
From: Irene Baldon <baldon@ligo.caltech.edu>
PLEASE NOTE: As of today I have no backlog. All Expense
Reports turned in
have been completed and are in the hands of Travel Audit or out for
signature
and or signature approval. My backlog remains ZERO.
Worked on the paper work for various new trips taken recently (16 Purchase
Requisitions and 12 Advance Requests). There are 16 additional
new trips
pending
completion of travel arrangements. Completed 13 Expense Reports,
some of these
were still not taped or completed by the Traveler. Received in
the late
afternoon
mail (yesterday Feb. 3rd) 7 new Expense Reports. These will be
completed today
and sent for approval and then forwarded to Travel Audit. As
a result of the
push a couple
of weeks ago, I have had extensive recording, filing and distribution
to do
this week, especially incoming Expense Checks.
Prepared Travel/Vacation Itinerary for the Week of February 2nd, 1999.
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.
From: torres <torres@ligo.caltech.edu>
For I. Petrac formatted MOUs with University of Texas, and with TAMA;
created folders to keep documents. Edits of MOUs ensued.
Compared files, then recorded files on disks for L. Jones. Coordinated
laser training. Prepared binders to hold reports (August thru
October
1998) for P. Lindquist. Helped Y. Kommemi to print shipping labels.
Obtained more helpful info on Project '98.
For W. Tyler/M. Zydowicz did updates to Safety Manual. The manual
had 57
pages to start, it now has 44 pages. Also input specification
for O-Ring
procurement.
From: Dot Lloyd <dot@ligo.caltech.edu>
Continued to work on heavy load of paperwork with problems needing to
be
resolved and processed many invoices and receivers for payment (see
Cost
Schedule Control Systems report submitted by Britt Leonhardt for further
details). Processed the usual heavy load of purchase requisitions,
POs,
change orders, etc. and did some data entry. Continued to monitor and
support the temp.
For additional information about this report, contact sanders@ligo.caltech.edu