The Project Control Meeting
Agenda for Monday May 25, 1998 will be:
WBS 1.1.1 Vacuum Equipment(Worden)
1. Gate Valves:
The valve inspection/repair is underway and paying
off:
a. WGV20 (X-End station valve) has been pulled and
now
has a new bellows installed as well as a new lead
screw.
This valve was known to have a leaky bellows and
had
previously caused PSI to stop work in the end station.
Leak testing is underway in the test stand.
b. The mechanical stops were welded in place.
c. The lead screw was replaced because it was about
0.01 inch
oversize (1.500 inch).
d. The inner O-ring groove was found to be out of
spec and
as a result it was easy to pull the O-ring out.
GNB is investigating
the possibility of a "knurling" type of operation
on a lathe that
may prove to be the best fix of this error.
e. While the gate solution is firmed up WGV20 will
be reinserted
into the system and WGV19(Beam tube valve/end station)
will be
pulled. If all goes well PSI/GNB will move over
to the Y-end station
next week.
f. We will begin venting the Y-2 BT module this
week.
2. Installation activities:(Worden for Kyle Ryan)
All stations - Paint touch-up is occuring at all
LN tanks.
Many entry doors have also been repainted.
X-arm end station:
GNB valve work ongoing.
X-arm mid station:
Also, waiting for GNB repair/retrofit.
Corner Station:
The left beam manifold is cool and RGA spectra are
being
collected. Looks pretty clean so far. The bake on
the diagonal
(2km IF) will begin next week. Most blankets are
installed and checked
out.
Y-arm mid station:
GNB valve work will move here after the Y-end station.
Y-arm end station:
Next in line for GNB Valve work. PSI has completed
the LN2 consumption test. Rates are consistent with
our
estimates - 4.3 gallons of liquid per hour. This
will
give us more than 100 days hold time with a "clean"
pump.
Livingston Site (Allen Sibley)
PSI completed installation of major vacuum equipment in the X-Arm End
Station this week; line was checked and approved by LIGO. The
2500 liter
per second ion pump and associated valves were also installed.
Work in the
Y-Arm End Station began Monday with preliminary placement of the 80K
pump
and BSC chamber.
A purchase order has been placed with Excel Electrical for additional
vacuum equipment work required. A purchase order was also issued
for time
and material work by Excel for LIGO interface work.
1.1.2 Beam Tube (L. Jones)
a. Tube section fabrication status, Magnolia
Beach shop
(running totals):
Leak Leak
Formed Tested Failures Cleaned Shipped
as of 5/12: 400
400 0 400 364
as of 5/19: 400
400 0 400
N/A
b. Tube section installation
status (Livingston site):
(running totals):
Inside Leak Leak
Final
Welded
Repairs Tested Failures Aligned
as of 5/12*: 360 21
359 0 0
as of 5/19*: 377 21
376 0 0
* Includes gate valves as the
finish "tube sections"'
Installation will be complete
when weld, leak test,
and alignment all reach 404.
Initial analysis of the first
X arm accumulation indicates an
air signature of the order of E-5 tl/s, which would
be the
largest at this pumping time of the modules tested
to date.
This analysis will be improved when the global calibration
accumulation will be analyzed and cracking pattern
calibration
results are factored in. CBI is already performing
bagging
tests of pump port valves and will be making a special
bagging
test of the mid station GNB valve bellows.
BDF air flow performance since
5/12:
Particulates (0.5u)/cu ft: 101
(max., any day)
Dew Point, degrees F: 3-9
Temperature, degrees F: 61-64
Of the 375 tube sections installed,
347 have now been covered
with enclosure sections.
CBI has requested permission to host a luncheon for
the Livingston
Site Boilermaker craft worker using the Maintenance
Building; this
request has been granted.
c. Planned meetings:
6/2/98: monthly project status review, Livingston site
7/1/98: Completion Review, Livingston site (performed
early due to manpower availability)
1.1.3 & 1.1.4 BTE and Civil Construction (Fred Asiri)
>>Issues:
Hanford:
1. Water System Integration: All necessary documents
are in
Caltech. Request for Quote will be issued
by Ed Jasnow, shortly.
An announcement requesting potential
bidders to advise Caltech
of their interest for the receiving
the water integration package
was posted in the local newspaper at
the Hanford area on
May 18, 1998. A list of interested companies
(9 Cos.) has been prepared
and
submitted to Ed for issue of RFQ.
2. Final Vane Axial Fan Testing: The vane actuator
for fan
#2 has been re-installed. The final
field test documents were
received from the contractor and were
submitted for review and comments.
Livingston:
1.HVAC Chilled Water Coils/Fins Condensation: Water
is
blowing off horizontal fins past collection
pans and on the floor.
Coils were installed incorrectly (vertical instead of
horizontal).
General contractor has formally been informed
and has been asked to
reorient the coils per the manufacturer's installation
instruction
and its Mechanical subcontractor's responsibility
to correct the
problem. Bernhard Mechanical (subcontractor) has started to
fix-up
the problem.
2.Vane Axial Fan Testing: Contractor has forwarded
the fan test
data to Parsons. P. MacCalden of Parsons
is reviewing the fan
test data. Up-on completion of his review,
he will release the
final report to Caltech.
3. John E. Chance and Associate Inc. has been selected
to perform the
QA. for Beam Tube and Vacuum equipment
alignments. A Draft Contract
has been prepared and will be reviewed with the John E.
Chance representative
at the site.
4.I have talked with Ron May of DEMCO, regarding
the power quality and
billing rates. Ron has asked to a day or so to look into this
matter. He will
meet to discuss these matters at the site this Thursday.
I am at the Livingston site through this Friday.
Livingston Construction (Gerry Stapfer)
WEATHER. The site has not received any rain during
this period. We re
having a veritable drought.
HENSEL PHELPS
--Working on outstanding notice to comply and punch out items.
Putting
together as builts and O & M manuals.
BERNHARD MECHANICAL CONTRACTORS-held a meeting to coordinate the reworking
of coils in the HVAC system.
AVALL0NE ARCHITECTURAL SPECIALTIES--replaced break metal and fixed
hardware
at the front entrance to the OSB.
WOODROW WILSON
--Installing B unit doors and hardware along Arm 2.
--Grouting , patching bug holes and caulking around the installed BTE's
along Arm 1.
COASTAL BRIDGE--has installed approximately 558 on Arm
1.
As of today, 2,581 BTE's have been cast ,
2224 BTE's approved and 1848
BTE's have been installed.
Issues
Power problems between Demco and Trane causing the
chiller shutdowns.
LA. State Fire Marshall compliance list.
Reinstallation of the Air Coils for HVAC system.
Date: Thu, 21 May 1998 23:06:45 -0400
From: David Shoemaker <dhs@ligo.mit.edu>
----------------------------------------------------
DETECTOR GROUP -- Whitcomb/Shoemaker
(WBS 1.2, 1.3)
----------------------------------------------------
-----------------------------------------------
Implementation Group -- Mark Coles/Fred Raab
-----------------------------------------------
40m (Jennifer Logan)
--------------------
We replaced the failed Pockel cell with the test cell which had been
in
the 40m for the same length of time but had suffered no degradation.
During the vent to carry out this replacement we looked again for signs
of parasitic fringes at the refelction port of the interferometer.
They were indeed still there at some level. Our investigations
have
led us to believe that the fringes are due to light reflecting from
the
last mode matching lens in the system interfering with light reflected
directly back from the recycling mirror. We tried to shim the lens
but
to not very much effect (the mount does not lend itself to shimming).
At the moment we do not really know at what level these fringes become
a problem. We are considering replacing the lens which is
plano-convex, with an acromat.
(GHS question: Is there a lesson for LIGO IFO
optics mounts? Ability to
adjust the way Jenny would have liked in the
40 Meter?)
Work continues on the wave front sensing, in particular locking two
degrees
of freedom of the power recycled Michelson.
Keith's undergraduate student from Michigan, Jamie Rollins, has now
joined us and is working on designing an intra-vacuum beam block.
This
will be of great use when we want to study configurations such as the
power recycled Michelson, without constantly misalgning mirrors and
then
having to realign them.
----------------------------------------------
Interferometer Sensing and Control -- M Zucker
(WBS 1.2.1.1.6, 1.2.1.1.7)
----------------------------------------------
ASC Initial Alignment (K. Mason)
--------------------------------------
A design for the IOT7 enclosure, periscope column, and beam tubes has
been done with detailed drawings on the enclosure and periscope column
sent out for quote. This design uses the same beam tube interface
as
used on the optical levers, with the periscoping mirrors inside the
enclosure.
Purchase requisitions have been issued for the optical lever laser and
photodetector assemblies.
#MZ note: orders for illuminator
lamps, beam expanders, most of
the CCD video cameras, and
all the silicon and InGaAs
photodiodes LIGO (I) could
ever want are also now wending
their way through Caltech
purchasing (we hope).
ISC design/fab (Fritschel/Mavalvala)
-------------------------------------
o Gathered technical specifications on an autocollimator that looks
to be suitable for the IAS work. This is a new product being put out
by Micro-Controle (French version of Newport), which should be
available in June. The major unique feature of this device is that
it can autocollimate an optic that has very low reflectivity (2%)
at its laser diode wavelength of 670 nm.
#MZ note: Just for the record,
sometimes we DO get lucky.
LIGO IR
high reflectors look like windows
(R ~ 4%)
at 670 nm, and nobody makes an IR
laser autocollimator.
o Orders for various ASC equipment have been generated.
o More work done on the servo modeling of the differential length
degrees-of-freedom, specifically on the requirements of the analog
whitening and de-whitening filters.
o Electro-optic shutter: The EO crystal was returned to the vendor
a couple of weeks ago, after Haisheng found that the half-wave
voltage was much higher than the spec. The vendor found that the
problem was the crystal was 2mm shorter than the design length.
They are making us a replacement of proper length.
LSC acquisition control design (Ware)
-------------------------------------
Resolved most of the problems with comparing the new SMAC transfer
function phase output to Twiddle. They seem to agree, with a
couple
of exceptions probably attributable to differing conventions.
They
differ, however, from some of the transfer functions which were being
used to design controllers, so I'm changing the Design Tool to reflect
this. A bit more SMAC specific work to be done here involving
the
little l degrees of freedom. For the novice, I'm returning to
improving the big L controllers using this new information, making
sure that everything is consistent.
PNI mixed-signal length control experiment (Fritschel/Daw)
---------------------------------------------------------
o Ed D has been working on additions to the digital servo code.
As reported last week, the PNI has been locked with the digital
servo, but this was a special 'acquisition' servo, and it bypassed
the DAC de-whitening filter to have more control range for
acquisition. The new code is intended to allow us to switch from
this mode to a 'detection mode', where the de-whitening filter is
switch in and more gain is put into the digital section.
o Brian has made some measurements of the sensitivity of the
interferometer to fluctuations of the input beam direction ('beam
jitter'). Preliminary results indicate that beam jitter is
not the source of the excess noise seen between 100-400 Hz.
-------------------------------------------
Lasers and Optics -- dhs for J. Camp
(1.2.1.1.2, 1.2.1.1.3, 1.2.1.1.4,1.2.1.1.5)
--------------------------------------------
10 W Laser Contract -- Jordan Camp
------------------------------------
Nothing to report.
Prestabilized Laser -- Peter King
--------------------------------------------
- Characterization measurements of the current shunt actuator have been
made. R. Abbott has modelled the actuator in Matlab and has designed
a
tentative servo loop using it. The model predicts that using
the current
shunt actuator for modulating the current to the power amplifier pump
diodes should enable the PSL to satisfy its intensity noise requirements.
The characterization measurements, to date, have
been performed on the
Alpha-1 10-W laser without any detrimental effects. Tests of
a slightly
improved current shunt should be completed by the next reporting period.
(GHS note: A nice piece of work...)
Input/Output Optics -- Dave Reitze, UF
-----------------------------------------
Jordan Camp is visiting the UF group this week.
Mode matching measurements
This week we are putting together the Bullseye photodide, the head board,
the demodulation board and the computer ADC board. The head board
tuning
is underway. We use amplitude modulated light focusing on individual
segments of the photodiode and detect the RF output (rectified) while
sweeping the modulation frequency. This process may take another few
days
to complete, but certainly we are getting closer to the real bullseye
signal testing.
Optics Procurement
We have received master plates from GO used for polishing for all of
the
MMT mirrors. The Russian group is in the process of measuring the
wavefront quality and radii of curvature.
Discussions with Dale Ness at REO indicate that we will be able to coat
all of the 2 km IOO optics in July.
Good news: Karl Lambrecht finally says that they can make a calcite
polarizer without using any epoxy. They have made a sample and are
now
testing its performance.
Mechanical -
Aaron Bengston has left the group to pursue other interests. We
will miss
his capabilities and positive attitude. All of the in-HAM drawings
have
been sent to Paul Kabot and put under configuration control.
High Power Testing -
Waiting on AOM delivery to measure power dependent transfer
functions and thermal lensing.
Considered the resolution of our Shack-Hartmann detector. It seems that
theoretically it can be used to measure thermal lensing of the fused
silica sample if its absorbance is ~10 ppm/cm. To increase the sensitivity
of the slope measurement, it is necessary to focus the YAG beam (to
make
the thermal lens diameter smaller relative to the probe beam diameter
so
that the slope of the thermal lens may be enhanced).
Core Optics Procurement and Metrology -- GariLynn Billingsley
-------------------------------------------------------------
No report received.
Core Optics Coatings -- Helena Armandula
--------------------------------------------------
REO - COC coatings: 4 ETM optics are coated both sides. They are within
specs. and look very clean. They need annealing and final inspection
before
they get shipped to Pasadena by the end of the week (5/12). FM substrates
are getting coated next, after completion of a calibration run.
Cleaning procedures: Cleaned some 3" mirrors coated at 514nm. by REO
(old
test pieces), with good, consistent results. However, we were unable
to test
3" mirrors coated at 1064nm. by CVI because the coating came off during
the
cleaning process. We did not have any problems with REO coated mirrors
after
several cleaning tests. In order to validate the cleaning procedure
with
absorption measurements, 3" substrates and a pathfinder blank will
be coated
at 1064nm. by REO. Also, had magnets epoxied to a 3" mirror, to test
cleaning procedures in assembled optics.
Core Optics Support -- Michael Smith
------------------------------------
Mike is on vacation this week.
--------------------------
Isolation Group -- M. Fine
--------------------------
Seismic Design (Mike Fine)
--------------------------------------
1. In-Vacuum Hardware:
A potential interference on the HAM support table was uncovered this
past week. The support table is roughly 1.5 cm from the wall.
However with the addition of the pitch and roll requirements as well
as
uncertainty in the vacuum wall location and other tolerances, there
might not be adequate margin during coarse actuation. We are
looking at a number of ways that the problem can be solved. The
best solution appears to be to raise the support table with shims off
of
the support tube, and correspondingly reduce the shim thickness used
on
the stacks. In addition, a chamfer will be cut on the corner of the
support table to further increase the allowable room. These are
minor changes and will be evaluated on the first build of the HAM to
assess the problem. Allied has been instructed to machine the chamfer
to
0.75 cm.
2. 1st Article Springs:
Hytec has completed testing 90 springs and shipped the first batch
of
80 springs to Astro Pak for chemical cleaning. After cleaning Astro
Pak
will send the springs to Hanford (around 6/5).
3. Actuator Component Testing:
The actuator testing is progressing. The linear tables are currently
being tested and the scissors table tests are to begin next week.
The Dillon load frame has arrived at Hytec. The spring tests (used
for the scissors table) are currently in progress.
Suspension -- (Janeen Hazel/Mark Barton/Mike Fine)
-------------------------------------------------------------------
1. LOS Fabrication:
We received the first height adapter last week from Brrokfield. Bill
Tyler wrote up an inspection report and faxed it to Brookfield on
Monday detailing the issues we had - especially their signoff of the
first article when there were out-of-spec dimensions.
2. LOS Fixtures and Assembly Fixtures:
Janeen reviewed the first article Macor sensor/acuator heads from
Progressive Technology and found them satisfactory. A piece of the
alum oxide sample has been sent to get a GDMS analysis done.
---------------------------------------------------------
Detector Systems Engineering -- D. Shoemaker/D Coyne
(WBS 1.2.1.1.9)
---------------------------------------------------------
Global Diagnostics System
(Rolf Bork, Paul Govereau, Mark Pratt, David Shoemaker, Daniel Sigg)
--------------------------------------------------------------------
DS has finished a first edition of the diagnostics scheduler.
MP is
working an rewrite of the controller for the Stanford DS340 signal
generator that will allow control over rs232 or ethernet. The
EPICS
controller for the first edition of the digital excitation engine is
complete. It's finals week and PG hasn't been around much.
Physics Environment Monitor (Alex Marin)
-------------------------------------------
- Working on the software for the 1st SEI/HAM test
- Orders and tests of the PEM components
- Working on the electrical mounting scheme of various
PEM
components
- Shourov and Sarah are working on the magnetic
corelations
between the two sites. It looks that there
are some interesting
events. Sarah will graduate soon with a thesis
on this subject.
Optical Contamination (Daqun Li)
---------------------
spacer of cavity one for
requalification. Initial ringdown and mode spacing measurements
suggest total cavity loss of 138+/-0.1 ppm and total cavity absorption
loss of 1.0+/-0.1 ppm (not as 4 ppm as previously detected).
This
cavity remains locked since Yesterday and day to day data taking is
underway.
Work still continues on characterizing Loss Scanner with different
optics and qualifying cleaning procedures with this instrument.
-----------------------------------------
Control and Data System -- R. Bork
(WBS 1.2.2)
-------------------------------------------
Hanford
=========
- Connected CDS backbone network to FMCS; FMCS now operational from
control
room.
- T1 local connection installation complete. Working with PNL for
Internet connectivity.
- Control room furniture procurement held up; need to convince Caltech
procurement that we can use GSA pricing.
Livingston Vacuum Controls
===========================
- Livingston racks complete and ready to move into place when PSI is
ready.
- Updating Livingston drawing set to "as builts".
Data Acquisition
=================
- In process of performing tests on ICS110B ADC modules w/anti-aliasing
filters
- VMIC has completed beta version of software drivers for PCI reflected
memory
boards to go into our Sun stations; should be delivered in next two
weeks.
PSL
======
1. Continued work on the intensity stabilization of the PSL.
The newly
designed current shunt power adjust actuator is functioning as designed
and
a stanford research lock of intensity has been achieved using this
new
actuator. A servo has been designed that uses this actuator but
it requires
that the gain of the current shunt be increased by a factor of 100.
The
current shunted around the laser diodes will remain the same at DC
and a
zero has been added to prevent offsets from changing laser power in
the AC
coupled servo. Once a measurement has been done that shows the
sucessful
increase in gain the servo will be cut on the circuit board mill and
tested.
GPS CDS: (D. Ouimette)
======================
We have received the quotes for GPS modules from Brandywine (JXI's
sole
distributor). Promised delivery is 3 weeks for the slave modules which
need
no modification and 9 weeks for the modified master modules. I spoke
to JXI
regarding the bad experience that Aricebo had with deliveries (or lack
thereof). This is a complaint about Brandywine that A. Lazzarini brought
to
my attention. Brandywine uses two manufacturers, JXI and a company
in
England. The company in England is the one that received a large navy
contract and the large sums of money involved apparently had the effect
of
reducing Aricebo's order to insignificance. Ok, I'm reading between
the
lines here. But I think that is the gist of it. Our order would be
from JXI
(through Brandywine) and should not be affected.
We have invested a fair amount of time working with JXI to get a system
that
meets our requirements. To get a comparison I talked to Rick Dielman
at
TRUETIME regarding our requirements. He will be quoting the same system
within a few days.
IO CDS: (D. Ouimette)
======================
Xing Fei is reworking some details for the demodulator prototype that
we are
going to build in the shop. The EOM controller PCB is 90% complete
but needs
our CAD expert to finish the details. We will then send it out for
one
prototype board. RF photodiodes are being assembled and tested.
Suspension
==============================
- FDR for SUS electronics held 5/20/98.
- LOS controller boards are out for fab and should be returned by mid-June
fully
stuffed.
- SOS Controller board fab contract will be awarded by next week.
- Satellite amplifer board layout is complete.
- WA 2K LVEA CO rack cross connect wiring 75% complete.
| CR-970037 Rev A | WBS 1.4.3 | LIGO Data Analysis System (LDAS) |
| CR-980007 Rev A | WBS 1.1.5 | Beam Tube Bake, Adjust Budgets to reflect experience |
| CR-980011 Rev A | WBS 1.1.5 | Beam Tube Bake, Electrical Power |
| CR-980015 | WBS 1.1.1 | Miscellaneous Vacuum Equipment Mods to reflect changes to the PSI payment milestones |
| CR-980016 | WBS 1.1.4 | On-site Telephones, Hanford |
| CR-980017 | WBS 1.2.2 | CDS Spares, Suspension Test Stands, Travel (Partially Approved) |
| CR-980018 | WBS 1.1.3 | Asphalt Surface for Service Roads at Livingston |
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
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| Technical Notes/Informal (T) | 5 |
ACTIVITIES
Copied and assembled all MOU's, MOU attachments, and the current six-month progress report for each.
Made some headway into entering the document backlog into the database.
Bob Vincent is currently at Hanford providing LIGO QA support/assistance
during the start up of the site valve inspection and rework. Completion
of the first two 44 inch valves has been delayed due to late tooling/jig
deliveries to Hanford, but the effort is expected to recover some of the
time as the process "bugs" are worked out. The first gate inspected was
found to have some oversized o-ring groove areas (o-ring pulled out easily)
and areas of "peening" rework. This gate will be replaced.
1.4.3 Systems Engineering
1.4.3.1 Systems Engineering & Integration (AL, BB, CC, JK, DC)
__Integration Planning: Baldwin is in Hanford to walk the site for the
cable tray design.
__Analyses: Completed the analysis for Detector IAS of the as-built
BT/VE interface marker locations at Hanford. Available as :
http://docuserv.ligo.caltech.edu/~coyne/docs/T980044.pdf
Summary of results:
[1] RMS fit to two orthogonal axes: .0052m(!)
[2] Vertex Location: h = 142.554m (above ellipsoid)
lat =
N042d 27' 18.5280"
long = W119d
24' 27.5657"
[3] X arm bearing (geodetic) N35.9994W, dips .0006195 radians below local horizon
[4] Y arm bearing (geodetic) S54.0006W, dips .0000125 radians below local horizon
__Reliability: Nothing to report
__Integrated Layout/Drawings:
HAM 84" ACCESS & 14" ("E") NOZZLE GUARDS W/COVERS
Drawings are being evaluated by Rick Savage.
ASC OPTICAL LEVER LAYOUT
This project is now on temporary hold due to the
possible
change to the Louvre Baffles in spools numbers BE-5
& BE-6. No
date of completion is projected. However will probably be laying out
Ken Masons levers & the spools just to get a jump on as much of
the
vertex area in 3-D as we can since we have a temporary body who can
do
it, maybe sometime next week.
WASHINGTON OPTOMECHANICAL ILDs
The Mid Station xref's are set up waiting for input
from the
various groups (IOO, ISC,COS). When time permits,
will also set
up End Stations.
PSL/IOO XREF LAYOUTS FOR ILDs
Recieved plan & elevation layouts from Aaron
@ UFL for the
PSL/IOO Optical Tables & Hams 1&7 (4k &
2k). Also have new 2k
optical layouts as well as a plan drawing of the enclosure. The vertex
plan is now tentatively up to date except for a few missing beams.
After a couple of short term projects will start the elevations. They
could be up dated by the first week in June.
Received and reworked a PEM sensor drawing file for the Washington
corner ILD. The file has been copied to the sysint file system
and
xref'd to a revision in progress of the ILD. The mid and end station
ILDs have also been recently revised and readme files have been created
to record revision history and other information for the drawings.
A
readme file will also be created for the corner ILD.
Trained new lab technician on assembly of COC Carriers.
Still working on the LOS (Large Optic Suspension) drawings when time
permits. Limited progress so far this week.
__Mock-ups:
ELEVATED PLATFORM FOR MOCK UPS
Other projects have still been pushing this project
to the
rear, but will now try to finalize purchasing
information in
the next week or so and obtain some viable prototypes.
1.4.3.3 Modeling & Data Analysis (KB/HY/AL/SA)
Yamamoto:
A step-by-step plan to implement the modal model in e2e has been
written down and being finalized by Biplab, Matt and Hiro. The
documentations in /home/e2e/Software/docs/e2e/e2e_manuals/ are updated
to include these plans, to reflect the modifications of the modules
and
to expand the contents.
Validation of the mode decomposition matrix and the single mode version
of the e2e is pushed further by Biplab and Hiro. The spectrum analyzer
code of e2e was improved and bug-fixed.
Ed tracked down two major bugs in Alfi. With their elimination, Alfi
now supports arbitrary deep reads and the deletion of components
properly removes connections.
Ed is testing egcs 1.0.3, and will implement officially after
validation is over.
Ray Beausoleil has delivered the final version of his Spatiotemporal
Model, the program code and documentation. They are available in
/home/ligo/codebase/simulation/RayB-Model/. Read RevHistory in this
directory for details. The new docuent is in
/home/ligo/codebase/simulation/RayB-Model/docs. The code has been
compiled and run on SUN machine for one test case, and the output was
confirmed to be the same as Ray's result on his PC.
Cella, Albert, Somuya and Hiro (in various combinations of these) met
and discussed about the SEI/SUS modeling.
Hiro worked with Brent to modify the Twiddle code so that Brent can
compare the SMAC output with Twiddle include phase information.
Blackburn:
KB met worked with Stuart Anderson this week to test porting the
socket++ class library to the IBM, HP and SGI. The code did not work
on
these platforms for a variety of reasons...incompatibilities with
header files all the way to triggering bugs in compilers. This was
a
disappointment given that the code was originally developed on an IBM.
KB spent some time studing the portability issues of the BSD socket
and
located some simple C++ class libraries for sockets that didn't support
the interface at the level of the socket++ code. KB also located
a
commercial socket class library which is available on a 30 day trial
basis and may provide source code. The pricing and details have not
been checked yet.
KB met with Bruce Sears to discuss the JAVA socket class and his recent
progress with TCL/TK client server models.
KB met with the President of Alta Tech Inc and the LA Sales rep to
learn more about a 2ftx2ftx2.5ft cube sold by the company that houses
8
DEC Alphas or 8 pentium II motherboards, power, switch, cabling for
$15K with 128MB of RAM and 6GB HD per cpu. THis is a very attractive
price and packaging which should be considered for the sites where
space is at a premium. The units run linux and have additional admin
tools that allow remote monitoring of temps, power, etc within the
units (more metadata).
KB repeated a calculation of the North East Zenith unit vectors at the
request of Albert Lazzarini. KB took a completely different approach
to
the solution so it was a good check of the results with Albert's. These
calculations were used to locate the orientation of the arms at the
sites.
We are setting up interviews with candidate programmers/dbms designers
for LDAS development effort.
Majid:
Continued to collaborate with the VIRGO team to add I/O functionality
for the Frame Class Library. It is now possible to write Frames,
containing a subset of Frame modules.
Worked on WFS digital control software, implementing a basis
transformation and an IIR digital filter to control high frequency
noise in the control loop.
Started to write a document, describing the Reflective Memory network
implementation in a self-contained package that I had recently
developed.
Anderson:
I have been attempting to coordinate activities to get the RAID box
and
two servers up and running next week at the 40m. It looks like that
problem is well in hand now.
I have been working with FFTW to test its correctness on distributed
FFT's using MPI. I hope to switch from testing/bug reporting to
benchmarking on a few machines later today. This will be helpful for
scoping out the LIGO pulsar search problem.
Bruce Sears (SRL):
1. "version 0" ligo client/server implementation completed.
2. Prepared document outlining client/manager/server system to be
implemented next, after discussion with appropriate
parties.
COLLABORATIVE RESEARCH (LS Finn, Mohanty, Mukherjee, Romano)
Finn out of town -- no report received
1.4.4.2 General Computing (LW/TE)
MIT: 1. Preparing for move. Starting July 14 thru July 17.
Livingston: Nothing to report
Hanford: 1. The hardware for the T1 unit has been installed and
temporary addresses are being setup for testing.
[AL Note: J. Donegan of SDSC has been notified that soon we will be
ready to start "tests" of LHO<->PNNL<->SDSC<->CACR/CIT traffic.
2. Working on new purchases and preparing for SURF students.
3. Christine Patton is handling multiple issues for the equipment at
Hanford and is in the process of getting necessary items such as the
tape robot and software upgrades.
4. Put in a service request on the E3000 service contract to get the
free upgrade to Solaris 2.6. Should arrive next week.
5. Installed the CD drive on another Ultra-10 destined for Livingston,
but shipped here by mistake. Shipped it to Louisiana.
CIT:
1. Multiple PRs sent in for hardware, hardware upgrades and software.
2. Swapped out the two bad tape drives on the tape robot. We were able
to do the swap without taking the server down which was a surprise.
3. Returned acrux to the computer room after making sure the new FORE
3850 box was working properly.
4. Installed a couple of Ultra 10s . Installed a Sparc 10 in the 40M
and updated the Sparc 5 in the 40M North Annex.
5. Multiple fixes on the email aliases and built the lho-all, llo-all
aliases to handle all of the people at the Hanford and Livingston
Observatories.
6. Multiple PC fixes. Most were application problems with a few
machines having some hardware problems.
7. Various meetings and planning sessions were held concerning the move
to the Library and the 2nd floor of West Bridge.
8. Barbara K. finished another iteration of the Outgassing database.
Met with Albert to reconcile the numbers. We will be making more
changes to refine the formulas.
9. Barbara returned to work on the Requisitions database for Dot.
Imported the Vendor and Staff tables into Access and set up their entry
forms. Working now on import procedures for main database and
log
spreadsheets. Identifying discrepancies, e.g. requisitions
without
vendor table entries, etc.
10. For the website: (Barbara)
- changes to the LIGO Talks page for David Shoemaker
- tried to
help the reporter from Spokane who was looking for
a graphic
for his LIGO article
11. Reworked the network cabling and fanout boxes to go into one rack
in the 40M. This was done in preperation for two new computers and
a
raid system install at the 40M.
Sanders:
During the past week I continued the development of a prototype Linux
system:
1. I succeeded in making ppp connections. The documented Red Hat method
does not work, but the use of the minicom utility followed by root
implementation of the ppp daemon does work. For use by the non-expert,
this will have to be automated by a script invoked by an icon on the
desktop.
2. I performed NFS mounts of LIGO file systems onto my Linux file
system.
3. I achieved an understanding and workaround of the instabilities I
had been observing occasionally in my installation of XFree86 (which
is
due to interaction with the Toshiba display bios which will be
irrelevant for LIGO desktop systems). Linux includes virtual consoles
which are great for working around these instabilities.
4. I have run the usual desktop Solaris tools through an Xsession
(calendar, mailtool, file manager, xterm,...) but did not succeed with
maker or Island Draw. This is likely related to the interaction with
the X server and can be set up properly. All use of the X capability
required disabling access controls to the local X server by using xhost
+.
Explicitly listing nodes to be allowed
access was not reliable in permitting selective access control.
This may be my novice Unix status. The window
styles under Linux fvwm2 for the Solaris tools was not as nice
as under Solaris
or Windows/Exceed. For example, the calendar manager editor dialog
box
would not undock or close separately from calendar manager in total.
Perhaps this can be controlled in fvwm2, or by use of another window
manager, or under Common Desktop Environment (see below).
5. I configured local printer services for a postscript printer
and
tested these (remote will be next).
6. I did a complete installation of TriTeal Common Desktop
Environment. This kind of environment is essential for wide use
in
LIGO as most of our staff will want to work through a Windows or
Mac-like desktop, shielded from the Unix command-line. This test failed
utterly in a very unstable interaction with the X server and the
Toshiba bios. I had to back out of the installation laboriously using
the Red Hat Package Manager by uninstalling each of the packages
following along the package dependency chain. This would not
have been
possible under Solaris and would have likely required a reinstallation
of the whole system from scratch. Hat's off to Red Hat for an important
tool which should spread in the Unix world. I will try KDE on the
Toshiba and delay CDE untill I move to a fixed desktop with a more
conventional display bios.
I find Linux, when on the LIGO network using ethernet, to be a much
faster system to use for typical client applications. It is a much
more
difficult system to use on a laptop and my preliminary conclusion is
to
warn prospective users of such a combination to stay away from Linux
unless you like nursing your system.
My next steps are to carefully audit this installation to understand
it
fully, exercise it on the LIGO network, and then move on to install
the
NYS implementation of client NIS+. Then I will test Applixware's office
suite. There will be no progress next week as I will be traveling.
Date: Thu, 21 May 1998 10:34:07 -0700
From: Elizabeth Wood <ewood@ligo.caltech.edu>
Irene Baldon
Arranged and processed most of the paper work for 15 trips.
Worked on the ever present backlog of Expense Reports and
completed a significant amount of reports.
Have been working with Ken Libbrecht on arranging travel for a
number of Undergrads (15) participating in the LIGO/REU/SURF
1998 Summer Program here at Caltech and LIGO/Hanford, WA.
Eleven (11) will be working here at Caltech and four (4) at Hanford.
These students will be coming from as far away as England and
Puerto Rico.
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 both Hourly and Staff Payrolls (due to early submission
of the Staff Payroll because of the Holiday weekend), incorporating
various recent changes, new hires and the processing of Vacation/
Sick Leave accounting.
Rita Torres
For I. Petrac did change order No. 1 to Pegasus; prepared FedEx
package to send NSF then did internal distribution. Did edits
to
KTI contract and letter to FedEx an advance copy of the contract
to NSF.
For E. Jasnow obtained material, ID numbers, etc., for upcoming
IFBs and an RFQ. Parsons created some material which they
gave us on disk, however I need to reformat to work in FrameMaker.
Finalized reformatting GPs for the Sun River contract (~2 hours).
Did letter and prepared FedEx package to obtain Sun River signature
on the contract; also did purchase requisition. Did PC269547
with
BOC Gases for supply of liquid nitrogen to Livingston site.
For W. Tyler did procedure M980131 for moving clean rooms, and
M980132 for O-ring installation.
Dorothy Lloyd
Continued processing the constantly growing requests for PR's. Processed
POs,
Change Orders, Check Request, etc. as well as an extremely heavy load
of
invoices. Followed up and tracked many problems with invoice payments.
Monitored and gave support to the temp who has been assigned to me.
Provided
clerical support where needed.
Elizabeth Wood
Updated LIGO PAN forms for regular employees to reflect new account numbers.
Worked with Gary on the short term and long term space plan of LIGO.
Toured
the second floor of West Bridge and the new office space to be opened
up
there. Discussed and toured the move to sixth floor of Millikan
with the
physics office, including getting new phones and keys.
Met with Marty Garcia and Brad Smith of Physical Plant to discuss the
possibility of dividing room 102 in two and adding another door.
Continuing my regular Friday meetings with Miriam Beltran del Rio in
HR to
keep abreast of what HR is doing.
=========================================================
LIGO Hanford Observatory (LHO) Operations (R. Savage and F. Raab)
=========================================================
General Items:
--------------
The pace of detector-related activities is noticeably picking up.
L. Jones is here assisting with a
drawing check for SEI HAM 1st article test components and to work with
Matt Smith who is
here to measure the outgasing levels of the SEI HAM support tubes.
A. Arodzero from U. of O.
is here to assist with that task and PEM in general, B. Althouse is
was working on the beam tube
bake and B. Baldwin was up to work on the cable tray layouts.
Lab Setup:
----------
(D. Cook)
Optics Lab counter tops are here. The truck driver bringing the casework
called and said to look for him late Thursday night or Friday morning.
It
looks like the casework installation is on for this weekend. Some of
the
power receptacles were moved today in preparation for the casework
installation. Laser Safety curtains should be installed by Thursday
also.
The Beam Scan software has been installed on the Optics Lab computer
and it
tested out ok. Some progress has been made toward the Contamination
Control
Procedures, such as a preliminary Quality Control System for the ordering
and storage of clean room, bake-out, and vacuum preparation products.
Also
some beginning procedures for when and where gowning attire is required
for
our current needs as well as for the longer term. Lab components continue
to
arrive.
HAM 1st-Article Test:
---------------------
(C. Gray, H. Radkins, D. Hall, R. Savage, L. Jones)
Arranged for weekly cleaning of Test Area. Cleaning will take
place every
Friday at 3pm and will be supervised.
Booties are being obtained to reduce tracking of dust into Test Area.
HAM Support Brackets have been modified.
HAM Rail System constructed for fit check.
Engineering Change Requests being made for various out of vacuum comments(Piers,
Cross
Beams, etc.)
From H. Radkins:
The survey equipment PO is in the system; should own all these items by the first of June.
With Rick Savage checked the interference problem of the HAM Shell/Support
Table. Found
the clearance of the HAM shell at 4" above the 'E' nozzle centerline
to be 55.156" +.125 -0.
With Larry Jones and Corey Gray, checked some overall dimensions for
the HAM SEI relative to
the HAM design. Found only a few minor details requiring action.
With Larry Jones, Corey Gray, and Rick Savage, worked through our procedure
to insure our
objectives of the SEI system are achieved. That procedure has
been outlined and the details are
being thought through.
Beam-Tube Bake Out:
-------------------
(M. Lubinski, M. Guenther, K. Stiff and W. Althouse)
Electrical Support Services Contract:
The Electrical Contractor (Sun River) is on site and has begun work.
Sun
River is currently working on getting temporary power set up on the
beam
tube and the DC power supplies.
Cryopumps:
We will begin installation of these pumps next week.
RGA:
Nothing to report.
Data Acquisition and Temperature Control System:
I/O box wiring has been verified and the boxes will be left in a powered
up
condition. Data cable construction is continues and will be completed
next week.
Software development continues with alarm configuration, data
logging,power supply control and screen refinement.
Photon calibrator
-----------------
(D. Sigg)
The 980nm laser diode was setup in the optics lab for testing. On the
bright side:
- the output power was about 500mW at the highest current setting,
- the external modulation input could be used to generate AM light
with a modulation depth of about 90% and
- the calibrated integrating sphere clearly detected the signal.
On the not so bright side:
- the output mode leaving the fiber is not of very good quality and
will need further spatial filtering,
- the output power was only half of the manufacturer specifications
and
- for some reason the calibration numbers for the integrating sphere
don't seem to add up.
Thanks Doug for getting the lab up and running.
For additional information about this report, contact sanders@ligo.caltech.edu