The Project Control Meeting
Agenda for Monday May 17, 1999 will be:
(Meeting time: 10:30 am Pacific Time)
Weekly
Report Highlights
Ready to resume bonding of magnets
Water System modification: The contract is complete. We are waiting
for
the State health department to approve the system.
New staging Building: The contractor is installing the siding,
the roofing is complete,
and the sheet rock is being installed in the office area.
Compressors: No change, the contractors are pointing fingers at
each
other. Will take a little more time to sort it out.
Bake Oven:
----------
(K. Ryan)
LHO Vacuum Bake Oven A load #30 consisting of Kapton cables and seismic
leg element safety pins (both types) was released this week. The RGA
has
been unsteady as of late and it became necessary for this load to utilize
more than one post bake scan (scan log). The nature of the problem
is the
result of having to consistantly increase the electron multiplier voltage
bias to ever larger values in order to maintain the nominal sensitivity.
Removal of the RGA and or replacement may be required but, as of today,
load #31 is going ahead as normal.
Seismic Isolation Installation:
-------------------------------
(C. Gray, H. Radkins)
Work on BSC 7 continued this week eventhough Mr. Radkins was sidelined
due
to a horse riding accident. BSC 7 activities were as follows:
"Loosely" installed a 16.5" gasket we forgot about last week.
Down Tube was installed onto the Support Tubes. There were some
difficulties in making the connection with one of the Support Tubes--it
was
slightly rotated out of place, but we managed fine. One of the thru
holes
on the Down Tube/Support Table (for connection to the Support Tubes)
was
too small for one of the 36 each 3/8" bolts to pass thru. This should
not
be a significant problem, but we will need to notify Allied,
the manufacturer of the component.
Remaining pair of Bellows were partially installed; Support Tubes were
centered vertically w.r.t. the D-nozzles; Support Tube/Down Tube assembly
was connected to the SEI external components via the
V-Blocks/"Pillow Blocks".
Near-term tasks are buttoning up the Bellows and Re-installing the Dome
for
a leak test over the weekend.
Spent some time checking out the DAQ viewer software in the control
room
with the help of Gabriella Gonzales. We mainly took a look at what
instruments we currently have on line, such as a Seismometer out in
the
LVEA. Were not able to access the GRASP program however. Checking out
GRASP
and possibly setting up a second Seismometer in the LVEA are possible
tasks
for next week.
Would like to send out a Big Thanks to Ed Kruzel, Malik Rakhmanov, and
Betsy Weaver for all of the assistance they offered this week.
PreStabilized Laser:
--------------------
(Rick Savage)
Optics:
---------------------
(D. Cook & B. Weaver)
Doug has been working with the IOO group, removing
the Small Optic
Suspensions, from HAM 7 and measuring and replacing
the OSEMs. These are
the reworked OSEMs that have now had their visible
light filters removed.
We will be changing the OSEMs in MMT3 this week
as well, but work be done
in situ. Larry's new platforms and "Belly Bar"
were a great help with the
long reaches over delicate set-ups.
Doug is continuing with the LOS installation written procedures and
the
fixture changes. Still making some improvements to the labs and ordering
supplies.
This morning Bartie helped Betsy finish loading the 27 remaining beam
dump
glass pieces into the vacuum bake oven. Betsy spent the last two days
cleaning this glass, as well as the 40 two-inch steering mirrors. It
was
decided, though that these mirrors were clean enough to not be baked
(as
the bake oven may actually get the mirrors more dirty) because they
are
polished on all sides. Betsy repackaged the mirrors for further processing
when the time comes. Expect this load to be released Monday or so.
Computing Systems:
------------------
(C. Patton)
Larry Wallace and Albert Lazzarini were here most of the week.
Worked
with them on LDAS and General Computing connection issues and getting
a
Sun 450 computer for the GC network for data analysis. Worked
with
Larry getting the email server working.
Electronics & Electrical Systems:
---------------------------------
(R. McCarthy)
The PEM seismometer and tilt meter have been installed in the "Beer
Garden"
area. All they require is power from the rack; this will be installed
early
next week.
We spent much of the week working with Rich Abbott and Peter King on
the
change out of the VCO on the PSL table. Josh worked with Rich and gained
some valuable insights into the operation of the PSL electronics.
Control-Room Scoops:
--------------------
(compiled by F. Raab)
Robert Schofield (University of Oregon):
Last week with lots of help from Dave Barker, Daniel, Richard and Josh,
I
brought up the EPICS dust monitoring system in the corner LVEA. At
present
dust levels at seven locations are being monitored from a screen in
the
control room and stored in trend frames.
Nearly real time data from the dust monitors, as well as from the weather
station that I got going previously, are available on Dave Barker's
web
page (select PEM and DESC):
http://blue.ligo-wa.caltech.edu/perl/epics.pl
Beam-Tube Bake Out:
-------------------
(M. Lubinski, M. Guenther, and W. Althouse)
We found that the leak at X2-3 was on the 13.25" conflat flange at the
12:00 O'clock position. There was a very small imperfection in
the knife
edge of the flange. We replaced the flange and gasket at this
port and
then performed a leak check and it passed. We have re baked the
port and
currently checking for any sign of a leak via the RGA. John Worden
has
been able to repair the flange. We leak tested it and it passed.
We
obtained a sample(with the help of Larry Jones) from one of the Cryopumps
for an "FTIR". This sample was darker in color than previous
samples and
had a small amount of sediment in the bottom of the bottle. We
continue to
ready all bake equipment for shipment to Livingston.
Electrical Engineering: Preparation of as-built documentation is ongoing. Material take-offs and ordering for the cable tray in the corner station is complete (except for misc. hardware and supports). Still working on the water seepage into the Mass Storage Room and Control Room. CDS supporting work: Juilien is finishing the drawings for our GPS antenna locations. We will eventually post those drawings on our CDS web site. EE lab: Continue to receive parts ordered recently for the EE lab and keep the lab facilities well maintained. (Rus Wooley, Juilien Svoboda)
Optics & Vacuum Labs: Lab DI water system is doing great; we've been consistently better than 18 meg-ohm for the last week. Our first optics were processed in the labs; we cleaned a batch of 12 ISC viewports, as well as 2 for the PSL reference cavity. Tom Evans is baking them presently. I also used the machine shop for the first time to fabricate some parts for fixtures to stack the viewports in the bake-oven. Received the transducer for the large ultrasonic cleaner and we fitted all the components into a 35 gallon, 24 x 30" tub. We'll give it a dry (rather wet) run this morning. I also discovered through a process of elimination that the Liquinox waste we have been discharging into the sewer treatment plant appear to be the cause of the foaming we've been observing. Seems like this rather benign soap is injuring the 'bugs in the treatment plant by lofting them in the head of soap foam, where they are dying. I'm going to stop discharging Liquinox into the drains for a few days and see if in fact it has been the culprit. Continued to setup the shop area, and also straighten and re-arrange the staging building with Rich. Worked with Coastal Bridge to dress the parking lot and access road behind the staging building by spreading crushed stone, and placed drainage lines under same. Ordered 2-30x72" optical breadboards for the additional flowbenches. (Jonathan Kern)
Beam tube bakeout: The Power Supplies cables were received from Hanford and have been staged along the X-Arm location, at the first turn around. We continue to re-assemble the power supply trailers,and associate equipment and piping. We are in the process of inventorying all shipments from Hanford that have been off-loaded inside the Staging building. (Franklin, Stiff)
Facilities: Coastal Bridge Co. has completed the placing of gravel around the end station. This allowed the sheet metal contractor to start fixing the bullet holes at the west end station. The recent heavy rains indicated that there appears to be still a smallleak at the joint of the LVEA and the storage area. We also found seepage of water to the sunken floor in the control room and the tape storage room. Part of the seepage was coming from the underground conduit. We are investigating several fixes to the problem. One scenario might be a sump pump located in the pullbox.
The scheduled Crane Safety Training session was completed, all LLO personnel having attended the session. During a demonstration of the "daily hands on inspection" of the crane, we found one of the wire ropes in need of replacement. The new rope is on order and will be replaced. (Stapfer)
Weather Station/Suspension Test Stand. Complete check of rain
gauge and epics interface during storm this week. Previously unknown problem
found. Debug underway. Checking and Documenting C code about 30% complete.
GRASP - 40m tapes recieved. Frame reading utility for analyzing
LIGO and 40m frames obtained and applied to efforts to read LIGO Livingston
frame data into GRASP. Editing of GRASP code underway to allow reading
of LIGO frames. (Rizzi)
----------------------------------------------------
DETECTOR GROUP -- Whitcomb/Shoemaker
(WBS 1.2, 1.3)
----------------------------------------------------
----------------------------------------------
Interferometer Sensing and Control -- M Zucker
(WBS 1.2.1.1.6, 1.2.1.1.7)
----------------------------------------------
Interferometer sense/control (Zucker)
----------------------------------------
Equipment delivery status:
Relatively little remains for the 2k at LHO (most stuff already
shipped). Support tables for ETM optical levers are due
1 July, and
some late optics required to complete ISCT9 and ISCT10 are due
mid-June.
Optical lever, video and illuminator components are shipping to LLO
continuously as they are ready.
Site installation activity:
E. Kruzel is at LHO completing the ISC table assembly cleanroom in the
LVEA and doing final rework on the recycling mirror optical lever
transmitter mount.
N. Mavalvala is at LHO working with PSL and IO groups on noise issues.
ISC Optics Table Design (K.Mason)
----------------------------------------
Continued designing optic layouts for the ISC Tables. Detail
drawings
and assembly drawings still need to be completed.
#MZ note: this should be the last significant
round of revisions for
the ISC10 layout, except that
a specialized variant will be
developed to support the single-arm
locking test.
Optical lever fabrication (MZ for M. MacInnis)
----------------------------------------------
Assembly of LLO optical lever transmitter and receiver assemblies is
in
progress and nearly complete.
ISC fabrication (M. Smith)
--------------------------
Tested 8 photodiodes after I had assembled them into their mechanical
enclosures. One diode did not work, s/n 106. I did not
troubleshoot
this board yet. The eight good photodiode assemblies were installed
into the optical levers (by Myron) and will be sent to LA sometime
in the
near future. I will install the remaining 3 good boards into
the
optical levers that are in Hanford, on my next trip- May 24-June 5.
I designed the last optical lever wedge that is for the 4K beamsplitter
and sent the drawings out for quote. I should be able to place
the
order for these by next week.
Gave Ed Kruzel some instructions on reworking some of the optical lever
parts on the BSC4.
ISC implementation (P. Fritschel)
---------------------------------
o Reviewed the design of ISCT10 (the antisymmetric port sensing
table) with Ken & Mike; continued building, with the End-to-End
tools, a lock acquisition model of the interferometer.
ISC supervisory control and diagnostics development (E. Daw)
------------------------------------------------------------
This week I was preparing for the Hanford gds/isc supervisory
crate integration test at Hanford. My equipment is on its way -
I will be departing for Hanford on Sunday 16th. The scope
of the test is to integrate the global diagnostic system
software and hardware with the ISC supervisory crate and
the data acquisition system.
ISC installation & commissioning (N. Mavalvala)
-------------------------------------------------
I am at Hanford working on IO stuff mainly, swapping out OSEM heads
the defiltered variety, etc. I was here to do some other RFAM and
beam profile measurements with the IO folks but presently the laser
beam is not available. We'll probably resume that at the end of this
week.
-------------------------------------------
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 LHO 2k IFO PSL has been retrofitted with a new voltage controlled
oscillator (VCO) for the frequency shifter. The EPICS records
have been
updated to reflect the hardware changes.
The PSL has been re-locked to the reference cavity,
using the new
VCO, without any problems.
Using the pre-modecleaner (PMC) as an analyzer cavity,
the PSL
response as an actuator was measured. The requirement for the
PSL is that
the magnitude response should be flat to within 2 dB and that the phase
lag at 100 kHz be less than 20 degrees. Prior to installation
of the new
VCO, the magnitude response was within specification and the phase
lag at
100 kHz was approximately 45 degrees. With the new VCO, the magnitude
response was still within specification and the phase lag at 100 kHz
was
approximately 35 degrees.
- The DAQ hardware is being installed on the PSL, using a generic DAQ
interface board. Photodetector signals that previously were routed
directly to the ADCs now are connected to the ADCs via the DAQ interface.
Testing of the connections is expected to be completed by the end of
today.
Input/Output Optics -- Dave Reitze, UF
-----------------------------------------
Hanford 2-k IOO
- Optic gluing fixture
Both SOS fixtures have been finished and will be shipped to Hanford today.
- OSEM modification
Removed filters from OSEMS. The procedure was as follows: Using a sharp
knife and tweezers, we first peel the filter off the sticky tape between
the filter and the sensor. Then by the same method, we removed the
sticky
tape. Next by a thin swab, we wiped off the glue residue (coming from
the
sticky tape) attached on the detector surface.
We have removed filters from six sets of OSEMs (1 set for 1 SOS) and
cleaned them. Three sets of these cleaned OSEMS have been placed to
SM1,
SM2 and MMT1, respectively.
When replacing the OSEMs, we tested the magnet bondings (we use an Allen
key to test the bonding in the same way as the razor blade test). All
bondings on SM1 and SM2 passed the test. (We forgot to test the bondings
on MMT1).
PSL Table Modifications -
We discussed with rick Savage how to attenuate PSL on the PSL/IOO table
before the polarizer placed in front of the first IOO EOM. We
agreed on
placing additional cubic polarizer after the 1/2-wave plate placed
at the
PSL/IOO handoff point. The insertion of the polarizer will requires
us to
realign the beam. We also agreed on making new beam blocks for cubic
polarizers. The new beam block will block beam rejected by the polarizer.
- Bonding Test Program
Haisheng has completed the bond testing program by measuring the
strength of the bonds after baking and post-cleaning in liquinox.
Livingston 4-k IOO.
These tests showed clear evidence that the cleaning
process weakens the
Epoxy bond. Since the magnet-Epoxy bond is the
weakest, further
investigation will be focused on this joint.
- SOS construction
The SOSs will be shipped to LLO and LHO for the 4k instruments early
next
week.
Core Optics Procurement and Metrology -- GariLynn Billingsley
-------------------------------------------------------------
We have spent a considerable time analyzing the data from our
measurements of BS01 using our nearly completed 20°C three flat
test
results. We believe BS01 has a Side one radius of curvature of
-140km
with a rough uncertainty of +74km -44km. This uncertainty band
puts it
within reach of the specification: >720km cc and >200km cx.
For more detail on the measurement and analysis read on....
The piece measures 13nm more sag convex than it did before coating.
The
back side was measured off the AR coating at 0° angle of incidence.
The
data set was not of the best quality, but side 2 appears to be roughly
50nm more concave than it was before coating. The side 1 coatings
are
known to be compressive, the change in curvature for both sides is
most
likely dominated by this effect.
There is disagreement in calculated radius of curvature between
measurements at 45° and 0° angle of incidence for the beamsplitter.
The
45° measurement is assumed to be correct, as
this is the orientation for which the BS coating was designed.
There
was agreement between these two measurements for the Folding mirror.
We
believe that the 0° and 45° measurements of the Folding mirror
agree
because, for an HR mirror, most of the reflection takes place within
the
first few layers. This is not the case for a Beamsplitter.
The data used in this analysis were taken at 45° angle of incidence
and
include clocking positions of 0° 90° and 180°. Horizontal
profiles were
used and the ROCs were calculated from the measured sag. The
horizontal
data were much more reasonable and repeatable than the vertical, perhaps
due to their relative immunity to thermal gradients within the
enclosure.
UNCERTAINTY SUMMARY
For this particular Beamsplitter radius of curvature (140Km) the errors
we have currently accounted for add as follows:
± 10km
Uncertainty in 45° angle of incidence
± 4km
Fit to curve
+ 60km - 30km Uncertainty in curvature (6nm) of reference
flats (two
used here)
± 0.100km
Uncertainty due to pixelization
Core Optics Coatings -- Helena Armandula
--------------------------------------------------
Bonding issues: We are ready
to reassume the bonding of magnet assemblies
to optics.
After Haisheng's meticulous testing (also Sany's),
we have a good
understanding of the properties and limitations
of Vac Seal.
We learned important facts: oven cure at 100
degrees C for 2 hrs. produces
a stronger bond; immersion in DI water and Liquinox
cleaning solution
degrades the bonds.
As result we modified our bonding and cleaning
processes and manufactured
new fixtures to accommodate the changes. The
new bonding procedure also
incorporates steps to diminish and prevent contamination.
The effects of the new, revised cleaning procedure
have been validated by a
scatter test. Three mirrors with a generous amount
of Vac Seal went
thorough the oven cure and vacuum bake steps.
One of them was checked for
scatter before, and after the process, without
showing any surface scatter
deterioration. We are in the process of performing
cavity ring downs in the
other 2 mirrors.
Next week we'll have plenty of activity at Hanford
while successfully
implementing all these changes.
REO contract - COC's coating: We scheduled our
last coating runs for the
first week in June. We'll coat four 4ITM's (01,
02, 03, 06); three SPETM's
(01, 05, 07)
Also scheduled to coat are 4 sets of parabolas
for COS beam reducing
telescope.
Core Optics Support -- Michael Smith
------------------------------------
PO TELESCOPE
SORL has almost completed polishing two parents for the secondary mirror.
If all goes well they will segment and finish 6 sets of primary and
secondary mirrors by the last week in May. REO is scheduled to coat
4 sets
of mirrors the first week of June. Ken M. is revising the production
drawings for the PO telescope prior to fabricating the production run.
ETM TELESCOPE
Fabrication of a first article ETM Telescope is complete and delivery
is
expected by 5/14/99.
PO MIRRORS
The remaining rework will be completed 5/14/99 for the 2K PO mirror
assemblies.
CAVITY BEAM DUMP
Paul K. and Craig C. have completed the detail drawings for the beam
dump
support structures in BSC8. Request for quotes for the support structures
are being received. Fabrication will begin on 5/17/99. The detailing
of the
support structures for BSC4 is in progress. A production run of cavity
beam
dump housings in in process. The glass for the plate beam dumps has
been
cut and shipped to the coater for AR coatings.
VACUUM WINDOW
Varian is remaking the con-flat o-ring groove parts due to their fab
error.
Part numbers have been scribed on the windows, and they are awaiting
shipment to Jonathan K. in LLO for clean, bake, assembly, and leak
test of
the completed window assemblies.
COS IR ALIGNMENT BEAM
Mike S. has revised the illumination requirements for the projected
alignment reticles on the ghost beams and pick-off beams, based on
recent
measurements of the throughput through the alignment telescope and
associated optical elements. A 100mW IR source is required to provide
adequate illumination for viewing with a commercially available
surveillance camera. The eye safety measures associated with this 100mW
IR
source are being discussed.
INSTALLATION PLAN
item
completion install
Mode cleaner baffle
done
done
IO baffle
done
done
Elliptical baffle 2KRM, HAM9
done
on hold
Elliptical baffle 2KITMy, BSC8 done
on hold
Beam dump BSAR3, BSC8
6/1
?
Beam dump FMYX, BSC8
6/1
?
Beam dump FMYY, BSC8
6/1
?
Beam dump 4KITMHR3, BSC8
6/1
?
Beam dump 4KITMHR4, BSC8
6/1
?
PO mirror 2KITMx, BSC4
5/21
?
PO mirror 2KITMy, BSC4
5/21
?
Beam dump RMHR3, BSC4
?
Beam dump BSHR3P-2, BSC4
?
Beam dump ITMXAR1, BSC4
?
Beam dump ITMXAR4, BSC4
?
Beam dump ITMXAR4, BSC4
?
Beam dump ITMXAR4, BSC4
?
Beam dump ITMyAR1, BSC4
?
Beam dump ITMyAR4, BSC4
?
Elliptical baffle 2KITMx, BSC7 done
on hold
Beam dump FMXX, BSC7
?
Beam dump FMXY, BSC7
?
PO mirror BS, BSC7
5/21
?
PO Tel, APS, HAM10
mirrors 6/14
?
ETM Tel
fab complete
?
--------------------------
Isolation Group -- M. Fine
--------------------------
Seismic Design (Mike Fine)
--------------------------------------
1. Fine X Stages:
Hytec has asked Hand Precision to complete the first set of 4 fine
stages by
Mid-May. There has apparently been some miss-communication because
Hand
Precision is making the first fine stage assembly and not all four
that
will be required. The impact of this will delay the delivery
of the first
four stages until the end of May. Hand Precision is going to
do everything
they can to complete this job, as quickly as possible. However, it
is unlikely
that we will receive all four assemblies earlier than first of June.
2. Scissors Tables:
We currently have four scissors tables at Hytec. And they are is working
to
assemble for the first BSC installation at LLO. Hytec does not
have any
additional tables that will be ready for shipment by this coming Friday.
Hand precision has not started working on the next 16 tables that are
due
by the end of this month. They have said they will complete them
by the
end of May. Hytec has received all of the remaining Superior Jig scissors
tables. Each of these will be assembled as HAM units and shipped to
LHO at
the earliest time.
3. Near-Term SEI Hardware Delivery Schedule:
2 sets of HAM springs (Livingston)
5/17/99
2 BSC Downtubes (Hanford)
5/14/99
Suspension -- (Janeen Hazel/Mark Barton/Mike Fine)
-------------------------------------------------------------------
1. Report from Janeen:
-An acceptance to ship was sent to Brookfield for the last structure.
-Working on redesign of LOS BS fixtures. Supporting fabrication of
SOS
and LOS fixtures.
-Helena removed the filters from the present photodiodes. They have
been
sent back to Oliver. More LEDs have been procured and delivered to
Caltech.
The fixture design to test the LEDs and photodiodes was received by
CES this
Wednesdaydhs.
---------------------------------------------------------
Detector Systems Engineering -- D. Shoemaker/D Coyne
(WBS 1.2.1.1.9)
---------------------------------------------------------
Global Diagnostics System
(Daniel Sigg, John Zweizig)
Completed the FDR successfully.
We have installed the DMT software on a console machine at LHO. The
installation of the FrameCPP library required that we first install
the
egcs compiler on the CDS file server. The egcs-1.1.2 compilers and
libraries are now available in /opt/CDS/b/egcs/. There is still an
incompatibility somewhere in the egcs/framecpp installation evidenced
by
the refusal of the framecpp shared library to link with the c++ standard
library shared object. The incompatibility can be avoided by using
the
static framecpp library, but this problem should nonetheless be
investigated and remedied.
The DMT software is now running on node control3 and seems to be working
well. We have reproduced Bruce Allen's seismometer spectra on-line
using
root macros. The next project is to plot the time variation of seismometer
RMS within specific frequency bands.
Started the implementation of the sine response test. Reading in
the parameters, calculating the measurement intervals, setting up the
excitation channels, the measurement channels and the synchronization
points has been completed.
Started to integrate the NDS interface for obtaining channel information
into the diagnostics channel information API.
Physics Environmental Monitor(Matt Smith, David Shoemaker & Alex
Marin)
-----------------------------------------------------------------------
1.The delivery schedule is posted at :
http://web.mit.edu/marin/www/PEM_Delivery.html
2. Accelerometer positions and locations are posted
at
http://web.mit.edu/marin/www/Accel_Cable.html
More work has been done for the detailed PEM channel count for
LLO. The prelimary list has been circulated. Also we worked towards
the
completion of the muon detector design. Discussion were held related
to
the possibility of using ADCs with faster sampling rates, such as 1Mhz.
An alternative design is under investigation (with Rolf and Ralph).
Started to originate assembly drawings for all of the PEM equipment
as
it is installed at the sites. The goal is to have one drawing
that
integrates each component in its specific position and have individual
assembly drawings for a specific sensor. For example, there will
be one
drawing showing how the microphone is assembled, identifying all the
components that relate to the assembly while the PEM drawing will show
the completed assembly at ALL of its locations.
One of the two parts for the microphone is on order. The second
piece
has not come back from quote yet. I am working on the assembly
drawings
as stated above.
Matt will be at Hanford for two weeks, May 24 - June 4 to help any on
site
work. He is planning on installing the PEM stay clear zone railings.
Install the PEM interface plates on HAM 7, 10 and BSC4. Install
Beam
tube interface plates with accelerometers and temperature/humidity
sensors.
Optical Contamination (Steve Bell)
--------------------------------
The revised cleaning procedure was tested. 2 1" mirrors had vacseal
epoxy
applied to them and then were oven baked. The mirrors were then cleaned
according to the revised cleaning procedure, and absorption measurements
were made in a contamination cavity. No increase in absorption was
found.
-----------------------------------------
Control and Data System -- R. Bork
(WBS 1.2.2)
-------------------------------------------
Near Term Installation
=======================
- May 17 to 21: Rolf @Hanford for GDS/DAQS/ISC integration.
- May 24 to June 4: Rich @Livingston for continued PSL installation.
PSL
****************************************************
1. Finished installation of the Frequency shifting VCO/AOM.
Remeasured
the transfer functions and found that the phase is now only about 15
degrees over budget at 100 KHz. The installation of a little
compensation
in the VCO circuit will probably reclaim the missing 15 degrees without
much trouble.
2. Installed the new data acquisition system for the PSL.
We are in the
process of checking the system.
3. Upgraded the PID controller in the rack used for the Tidal
servo.
4. Cleaned up much ugly wiring that has grown in the rack.
LSC CDS: (Dale)
===============
The LSC Photodiode PCB Layout is still in checkout phase. There were
a
number of inconsistencies in the documentation that necessitates checking
every component. I am having to change components in some instances.
I am
also working on the 130 dB suppression filter for the LSC.
Timing System: (Dale)
===============
The final four GPS Receivers have arrived from JXI. The first 10 GPS
Clock
Driver boards should be here today. We will stuff and test them here
over
the next couple of weeks.
ASC: (Jay)
==============================
- The WFS whitening and interface baord layout is complete and being
checked.
The gerber files should be sent to the vendor for fab early next week.
- Design of the WFS dewhitening board has been started. The schematics
should be
ready for review early next week.
- A prototype of the QPD amplifier has been tested and appears to meet
the
requirements for noise, bandwidth, etc.
- Progress on some of the designs required for the LHO 2K one arm test
has
been
slowed by LLO suspension system designs and testing of suspension controllers.
- Design of the Bull's eye detector PD amplifier is on hold for requirements.
Suspension: (Jay)
==============================
- System and rack drawings for the LLO COS suspension rack are complete.
Fabrication of the cross connect and wiring harness has been started
and
should
be complete in ~1 week.
- Testing of SOS and LOS controllers for LLO has been restarted.
Data Acquisition: (Rolf/Alex)
=============================
- Completed designs for integration of GDS signals; coding started
and will be
tested with GDS and ISC supervisor systems at Hanford next week.
- jdClient and web data server now will collect and deliver "designer"
frames.
Software is operational and being tested on the 40m system. Working
on putting
request limits into the software such that "extreme" data requests
are
rejected.
- Loaner 500MHz Pentium III VME processor board should arrive today;
Plan to
benchmark on LSC servo code, our most time critical application.
DAQ Antialiasing Filter: (S. Liu)
=================================
BNC Version - design for the new circuit board using Frequency Devices
D68L8EX eight pole, 6 zero elliptic 850 Hz low-pass filter is complete.
Fred will order the new circuit boards before the week ends.
LEMO Version - Fred will copy what I did for the BNC version and change
its
input connectors to LEMO to compete the task. He should be able to
complete
the board modification and order the circuit boards within the next
couple
of weeks.
| CR-990001 | WBS 1.3 | Return Unused Budget for Construction Related R&D to Contingency | P. Lindquist |
| CR-990005 | WBS 1.1.4 | Livingston Site Fiber Optics Cable Installation | F. Asiri |
| CR-990010 | WBS 1.4.4 | Tape Drives for LDAS Hanford and Livingston Observatories | A. Lazzarini |
| CR-990011 | WBS 1.1.1 | Stiles, Scaffolding, Vacuum Cleaning | J. Worden |
Assisted the Detector Group with packaging and shipping of forty Sensor/Actuator Head Assemblies to Oliver McCullough, San Luis Obispo, CA. Account 5F518.
Assisted the Optic Engineer with packaging and shipping of hardware to Physical Electronics (attn: Doug Christansen) of Eden Prairie, MN. Safe arrival confirmation received. Account 5F514.
Assisted the Detector Group with packaging and shipping of two Flourel Shims to Hanford, attn: L. Jones, and to Livingston, attn: D. Coyne. Account 5F511.
Note: Any excess equipment, operational
or not, must be disposed of in accordance with government regulations.
Interpretation: please do not dispose in the nearest refuse container!
Talk to Ed.
DOCUMENT CONTROL
CENTER (Turner)
From: Sarita Moore<moore_s@ligo.caltech.edu>
Press here for ACCOUNTS PAYABLE HISTORY DATA.
From: Kris Duncan <kris@ligo.caltech.edu>
GNB completed their QA inspection and measurements of the Livingston replacement Fluorel gate seals. He Leak Testing completed the vacuum bakeout of two gate seal samples. The baked and unbaked samples were shipped to Rai Weiss for his evaluation and approval of this vendor. All of the bakeout will be completed by next Tuesday.
No report.
adlib - Misc (Hiro)
A bug in modeler_freq is fixed which generated frequency domain data
output in
wrong order.
PF's swept sine code is going to be used in modeler_freq for faster
calculation of xfer
function.
Digitizer implementation is going on.
Meeting on May 17 and 18 is announced.
adlib - document (Biplab)
Biplab is woring to update the e2e documents.
PSL (Biplab, Rick, Anthony)
Biplab and Rick are working on improving the PSL subsystem modeling.
Anthony is
thinking about the tidal effect.
alfi : Ed
Added base comment to Setting window
Working on displaying default values based on most recent changes.
[AL note: We have made an offer to a programmer
to support Hiro's work. This is
because we have been needing Ed Maros's repertoire
of skills in data analysis development: unix administration; database tools;
etc.]
* (JKB) LDAS focus continued to tackle the problems with the
IBM database driver shared object and the object space shared
object. Mary was able to find a third party driver which has
fixed the problem! We are once again moving in the direction
forward progress.
* (JKB) Held a teleconference with GDS team at Hanford to discuss
integration of their software into a CVS server repository.
This
has been configured. D. Sigg and J. Zweizig have been provided
with instructions on the use of the code management system and
a repository directory configured for their software.
* (MB) Reviewed LDAS documentation related to the overall design
and specifics of individual APIs.
* (MB) Configured my unix development environment on the Suns to
be consistent with other LDAS software developers.
* (MB) Met with Kent, Phil and Dave to discuss technical issues
associated with the genericAPI and other components of LDAS.
* (MB) Met with Dave to learn about the LIGO development environment
and software tools being used by the LDAS.
* (MB) Received instructions on the LightweightAPI which I will be
developing TCL shared object libraries in support using the
XML
parsing C++ object library from IBM.
* (ML) Worked with Ed on problem of genericAPI interference with db
open in metadataAPI. Preloading of DB2 odbc libraries did not
eliminate the problem. Another alternative is to download
an ODBC driver for DB2 from OpenLink software and use it
as a driver instead of the IBM driver. Using metadataAPI that
Ed
developed a few weeks ago with genericAPI /ldcg/lib,
Summary of results:
driver manager/driver genericAPI
metadataAPI result
IBM DM and driver not loaded
loaded db open ok
genericAPI can
be loaded afterwards
IBM DM and driver loaded
loaded db open fails
with IM004
iODBC DM and openlink loaded
loaded db open ok, but got
SQL S1000
unable to find db
name may need to
compile with iODBC
(Ed will enable this)
IBM DM and openlink loaded
loaded db open ok, SQL ok
driver
* (ML) Committed metadataAPI scripts and regression test script to
check out SQL functions and data socket on the metadataAPI.
These were developed against shared objects in /ldcg/lib.
* (DF) Finished the ILWD update. The ILWD library now supports
everything in the Generic API specification plus an lstring
tag (for string types). Additionally, the external & string
tags support the base64 format and compression.
* (DF) Updated the ldas general library. I modified the LdasException
class to support also returning an error code (instead of just
an
error message).
* (DF) Checked in all of the new code into CVS and installed the
shared objects & libraries on spica (under /ldcg).
The Generic
API now includes threaded versions of several commands.
* (PSE) Re-compiled Tcl and Tk version 8.1 on SPICA with
gcc AND the gnu linker. This was done to replace a bad
installation which had been compiled using gcc, but linked
with the solaris linker /usr/ccs/ld. The Tkcon console
still uses Tcl/Tk-8.0.4plus, as does Expect.
The tclsh and wish executables are version 8.1, and the
genericAPI.so and frameAPI.so are linked against the 8.1
libraries. Since Dave was able to test the new thread
functionality in the genericAPI.so successfully, I believe
the installation is a good one. Tcl and Tk 8.1 were built
with threads.
* (PSE) Continued to work on an alpha release of the managerAPI
and frameAPI which can process user request for reduced frames.
* (XHU) finished GDS trigger ilwd file.
* (XHU) worked on LDAS event ilwd file.
* (EM) Split dbEasy into two classes; dbEasy and dbEasyStmt
* (BS) Maintenance and upgrading of Ilog software.
Fixed minor bugs and am implementing an auto-update feature.
* (BS) Majordomo Installation and Configuration
Installing and configuring majordomo for Ligo use.
Walid:
I have carried out a survey of all the known radio pulsars and have
estimated their maximum GW emission based on their spin-down rates.
I have
used the Taylor et. al. model of the galactic free electron density
to
calculated a distance from the DM measurement. I will expand
this list to
include a class of accreting X-ray sources, which could also be strong
GW
emitters. The purpose of this study is to identify those CW candidates
for which we can set a meaningful upper limits in the early stages
of
a LIGO-I run.
Lazzarini: Met at LHO with Barker and Patton to discuss with them the phased implementation of LDAS and how that will evolve and may affect them.
Livingston:
Nothing to report
Hanford:
Larry Wallace and Albert Lazzarini were here most of the week.
Christine, Dave,
Fred and Daniel, worked with them on LDAS and General Computing connection
issues and getting a Sun 450 computer for the GC network for data analysis.
[AL note: we coordinated with Fred Raab to identify the GC budget element
for LHO under which
a general purpose compute engine could be procured. This system will
reside outside LDAS and outside CDS and be useful for code and algorithm
development by local and visiting scientistific staff].
Christine worked with Larry getting the email server working. The
server is now
working and the process of getting the
Hanford e-mail accounts moved is in
process.
Albert and Larry met with Cullen Tollbom and John McCoy, of Battelle,
to discuss
network connectivity and what some of the changes are going to be over
the next
few years. We will be talking with them again in a few months, after
they have
made their 0C3 connection to Seattle. [AL note: once the OC3 link is
in place, we have several
options to proceed along if we want to increase our bandwidth. Tollbom
indicated that at present
our PEAK periods of traffic on ESnet account for ~500kb/s or ~1/3 of
the T1 [theoretical] BW. I have asked him to provide us with regular (weekly?)
reports of LHO traffic on ESnet. This will be useful for two reasons: it
will give us a "heads-up" when we start to bump the BW limit; the trend
history will also allow us to scale to future needs and also justify needed
growth when the time comes].
CIT:
(Barbara)
Installed the web application for the LSC 6-month progress reports
on the
Amaldi server. We are still making last minute changes here and
there. I
investigated our options for allowing graphics to be submitted via
the web
form and then incorporated into the report. We now have 4 WebBase
licenses
-- my development license, a private and a public web server license,
and
the bakeout license that Roy Williams and Bill Althouse are using.
I have finished 2 spreadsheets showing the proposed configurations for
our
public and internal web services. I need to do a third from the
hardware
viewpoint and to write a little prose to go along with the spreadsheets.
Suresh and Sean spent this week mainly on implementing various blocks
of a
security hole that the hacker exploited to enter our systems. Solaris
2.6
security patches are currently being installed in all the Sun systems.
Many of
the are being rebuilt. Many users have already changed their network
password
and others are still being waited on.
Once again we must iterate that the users should not use the same password
on
their various accounts. Their LIGO account password should be different
than
their other account passwords (such as CCO accounts).
Sean has also started rebuilding the replacement for CDS's server, kater.
Worked a number of procurement issues.
Rita Torres
For I Petrac did change order No. 3 to MIT, the PX version, and formatted
accompanying Excel sheet. Did change order No. 4 to Allied Engineering,
then distributed after signature. Did transmittal letters for 11 MOUs,
distributed copies, then prepared packages to sent MOUs via FedEx.
For S. Whitcomb completed input to forms for CRDF, distributed after signature then sent original to Arlington, VA. For D. Coyne set up telecon for GDS final design review on 5/7.
Ongoing updates to site trips schedule. Attended the division workshop on Oracle, then met briefly with E. Jasnow for clarification.
Irene Baldon
Worked on preparing the paper work for various new trips taken recently (26 Purchase Requisitions and 14 Advance Requests). There are 24 additional new trips in various stages pending completion of travel arrangements.
Completed all of SURF Travel except for the 1 student coming from Belgrade, Yugoslavia. His participating in the 1999 SURF Program is becoming doubtful since I haven't been able to contact him for about a week. The SURF schedule is from June 14th thru August 20th and many of LIGO's members are acting as Mentors.
Completed 16 Expense Reports, some of which were extensive, involving 2 or more pages each. Many of these reports were still not taped or completed by the Traveler, and required additional time for completion. Also worked on a number of problem issues which required a good portion of my time.
Received, but not yet completed my audit, 20 Expense Reports. These should be completed in next couple of days, barring unexpected delays. I'm holding 5 expense reports which require additional information and/or missing receipts from the traveler.
Completed 1 Foreign Visitor trip which required extensively planning and coordination as well as the paper work involved. One new trip is pending final determination of flights and dates.
Prepared Travel/Vacation Itinerary for the Week of May 10th, 1999.
Performed miscellaneous duties as requested by various members of the LIGO Project here at Caltech, as well as from members of the staffs of each of the two (2) sites.
Dorothy Lloyd
Continued to process heavy load of invoices for payment, and tracked and followed up on various invoice problems. Processed the usual heavy load of POs, reqs, change orders, check request, etc. (for further details see Cost Schedule Control System Report by Sarita Moore).
Continue to monitor and support the temp.
Elizabeth K. Wood
Attended a meeting led by PMA's own Alan Rice to discuss ORACLE and the new changes to time keeping.
Got Ed Jasnow a signature card so he can sign PO's in Gary's absence.
Worked on the usual personnel items.
Did a salary survey for Joann in the PMA office. Also, updated Cindy on current salaries in LIGO.
Am helping Irene catch up on travel reimbursements.
NEW! E-TICKET RIDE at 315 S. Wilson! Spent lunchtime Wednesday with a garage door repairperson as he repaired the unliftable 315 S. Wilson garage door. The spring (installed by the builder of the garage) is the wrong kind. Nonetheless, the garage door is now openable. However, because of the spring tension, as one lifts, the door becomes easier and easier to open. So easy, in fact, that about halfway up, if one does not hang on tightly to the handle or rope, the door will go flying through the back of the garage. Perhaps we could charge twenty-five cents a ride. . .
For additional information about this report, contact sanders@ligo.caltech.edu