The Project Control Meeting for Monday, June 22 will not be held due to extensive travel by participants.
WBS 1.1.1 Vacuum Equipment (Kyle Ryan)
X-arm end station:
BOC Edwards was on site to modify the "safety
valve" switches on the STPH2000C turbo pump carts.
Originally, this valve would automatically close
to isolate the foreline from the volume being pumped
by the turbo (while in the "open" position) when the
turbo was being shut down. The problem was that this
valve would then open as soon as the turbo stopped
"braking", thus venting the volume of interest through
the roughing pump! The fix was to install a three
position switch where pos #1 closes the valve regardless,
pos #2 closes the valve until the turbo stops braking
then opens again and pos #3 which closes the valve
only when the pump develops a problem (such as excessive
vibration or the foreline pressure is too high) and
remains closed even after the turbo stops braking.
X-arm mid station:
Nothing to report.
Corner Station:
PSI completed the bake of the diagonal section. John
Worden accepted the vacuum performance. The bake of
the right BT manifold has begun.
Y-arm mid station:
GNB is ready to install a new gate into the Y-2 BT
44" gate valve. This new series of gate has the "dove-
tail" O-ring grooves machined close to the "tight side"
of the originally specified tolorance and does not differ
in thickness (the original gates were ~0.030" thinner
in the region outside of the outer O-ring).
Y-arm end station:
Nothing to report.
1.1.2 Beam Tube (L. Jones)
a. Tube section installation status
(Livingston site):
(running totals):
Inside Leak Leak Final
Welded Repairs Tested Failures Aligned
as of 6/9*: 404 23 404 0 0
as of 6/16*: 404 23 404 0 0
* Includes gate valves as the
finish "tube sections"'
Installation will be complete
when weld, leak test,
and alignment all reach 404.
CBI has completed the corings
of the X arm enclosure covers
and has cored 9 of the 32 planned
of the Y arm. All support
adjustments on the X arm have
been completed and all of the
control supports on the Y arm
have been adjusted; the balance
of the Y arm supports are in the
process of being adjusted
(on the basis of laser and stringline
measurements between
control supports). The direct
GPS measurements of the tube
at control supports is scheduled
to start on the X arm on 6/17.
Steve Hand has given notice of
his separation from CBI:
originally scheduled for 6/26,
now negotiated to 7/2/98;
he's taken a position as a manufacturing
engineer with a
smaller competitor to CBI in Houston.
He is looking forward
to keeping his family in a fixed
location. This is a cause
for concern, since Steve is CBI's
GPS guru, and the direct
GPS measurements have not yet
started. However, Dennis
Dickenson (Steve's deputy) has
made most of the field
measurements and has post processed
25% of the HA data
and 90% of the LI data; he should
provide good continuity.
Buboltz is assigning Rich Roche
to the alignment task and
he will be trained by Hand in
the time remaining. Buboltz
is stressing depth and understanding
in this training, at
the cost of quantity of supports
measured.
Site power failures continue to
plague the X arm pump cart
operations. The end station turbo
pump reported failed last
week was restarted with a reset
button after the pump cart
was removed from the pump port
(tight surroundings at that
position would not permit opening
the control panel while
installed). Also, the limit of
3 soft landings per battery
is probably in error; this is
not in the turbo pump manual.
The manual does state that the
expected battery life is one
year, which expires in 9/98.
A scaffold platform has been installed
at the mid station
gate valve and PSI is removing
the pullies and clutch from
the top of the valve. CBI will
adapt the top of the valve
to a pump and pull a vacuum on
the stem bellows to exclude
it as a leak source during the
next module accumulation air
signature tests.
b. Planned meetings:
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: Parsons provided a sketch (SK-WA-CE-2W)
showing
water supply for the Staging/Storage building. This consists
of a 2" PVC pipe starts from the maintenance building
and terminates
at south side of the access road. This sketch with the
list of
questions and answers that were asked during the pre bid
meeting
will be issued as modification to the to the bid package
shortly.
>
> 2. Karl Drobny of Parsons completed his duty as Construction Manager
for the BTE and Civil Construction successfully as of
June 17, 98.
>
> Livingston:
> 1.HVAC Chilled Water Coils/Fins Condensation: Bernhard Mechanical
continuing rework (reorienting) the air cooling coils per
manufacturer's
installation instruction.
2. Electric Power Quality: A meeting has been arranged with
representives from DEMCO (Electric power provider), Kai
Ramsing of
Parsons, Gerry Stapfer and me at this Friday. Purpose
of this
meeting is to discuss and resolve the issues related to
quality and
reliablity
of the electric power, as well as to discuss the DEMCO's
plan for mitigating the above issues.
Hanford Construction (Otto Matherny)
Levernier
The Levernier Infrastructure contract
is nearing completion. There
are 17 items that remain to be satisfied,
all of which are relatively
minor. For this work we are still holding
over $700,000.00 in
retainage.
No change since last week.
OTHER ITEMS
1) There are some birds that do not like the
caulking in between the
beam Tube Enclosures and
are taking it upon themselves to peck
the caulking out. Funny
but costly.
2) In process of issuing an addendum to the
Water System Modification
contract package.
3) In process of assembling the new building
and the maintenance
contract packages.
Livingston Construction (Gerry Stapfer)
HENSEL PHELPS
--Working on outstanding notice to comply and punch out items.
Completing as builts and warranties.
--BERNHARD MECHANICAL CONTRACTORS-continuing the reworking of
coils in the HVAC system.
Completed air coils in AHU's 1 and 2.
WOODROW WILSON
--Installing B unit doors and hardware along Arm 1.
--Grouting , patching bug holes and caulking around the installed BTE's
along Arm 1.
COASTAL BRIDGE-- ALL ENCLOSURES HAVE BEEN INSTALLED ON
BOTH ARMS
--Asphalting service road along Arm 2 has been completed
Date: Thu, 18 Jun 1998 17:49:54 -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 are now persuing the parallel paths of further detailed study of
the
power recyled Michelson (PRM) and of lock acquisition investigations
of
the interferometer as a whole. The observed recycling gain for
the PRM
is ~ 4.5 which is lower than we expect and Bill is leading a detailed
study to try to find out why this is. Lock acquistion studies
commenced
on Friday for the first time in several months (recent focus has been
on
the wavefront sensing on the PRM) and lock sections of several minutes
were obtained. We are working on extending this in preparation
for
starting wavefront sensing on the further degrees of freedom of the
interferometer.
----------------------------------------------
Interferometer Sensing and Control -- M Zucker
(WBS 1.2.1.1.6, 1.2.1.1.7)
----------------------------------------------
ASC Initial Alignment (K. Mason)
------------------------------------
Carlin Machine has recieved all purchase orders for machined parts
and
has assured us they will make our July 15th delivery date.
A layout drawing of IOT7 has been completed and is awaiting review to
begin detailing.
Lock acquisition design (Ware)
---------------------------------
Explored the phase space of controllers (a few different points,
anyway). Modified SMAC to display phases in dynamic mode (better
for
looking at recycling cavity stuff). Worked on understanding the
effect of initial conditions on lock acquisition. Also on
understanding some of the more deeply weird choices made by the
original designers of SMAC (there's gotta be a reason, right?).
Continued documentation.
ISC design/testing (Fritschel/Mavalvala)
--------------------------------------
LSC Detection Mode Controls:
We have been working on understanding and improving the Lp/mode
cleaner length crossover in the common-mode servo.
A revised estimate for the vertical 'bounce' mode was added to
both the differential-mode and common-mode servo models. With
these revised estimates the bounce mode now dominates the rms
in all signals and, in the differential-mode, exceeds the
requirements. We are looking into adding a resonant gain stage
at 13 Hz to suppress it.
Continued to write the final design document.
LSC PNI mixed-signal loop test (Fritschel)
--------------------------------------
o Tracked down and fixed a problem with the local oscillator feeding
one of the Michelson demodulators.
o Still working on coding for implementation of the test pont signal
injection & readout.
o Measured the closed loop gain of the Michelson loop under
digital control using analog test points and the HP signal analyzer.
The unity gain frequency of the loop is about 500 Hz; the phase margin
is fairly low, and we plan on making some changes to the digital
filter to improve it.
-------------------------------------------
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 intensity of the PSL has been stabilized with an acousto-optic
modulator (AOM). A simple one pole filter with a gain of 66 dB
and a
corner frequency of 100 Hz brought the PSL to within a factor of 3-4
of the
PSL requirement, as measured by an outside-the-loop photodetector.
The use
of an AOM is the fallback plan for the PSL.
- The double-pass phase delay for the frequency shifter was measured
to be
401 ns, corresponding to approximately 15 degrees at 100 kHz.
- The optical layout of the frequency shifter has been modified to use
a
shorter radius of curvature concave mirror in order to make the PSL
optical
layout more compact.
Input/Output Optics -- Dave Reitze, UF
-----------------------------------------
Mode Matching -
After implementing whitening filters, getting an automated data
acquisition system running, and chasing down some pesky electronics
problems (one bad connection on a connector), measurements of the mode
matching are underway. One of the mode-matching lenses is being
dithered
at 0.1 Hz and a signal is evident. However, a large component of the
signal is a TEM 01 signal (due to a combination of misalignemnt and
a less
than perfect NPRO mode); work is underway to re-align to push down
the TEM
01 signals.
Procurement -
Many components have arrived for the IOO optics on the PSL table.
In
addition, the non-suspended (in-vacuum) mirror mounts have been serialized
and shipped to CIT for bake-out. REO is currently coating all
of the
in-vacuum 2" beam-routing mirrors.
Mode Matching Telescope -
THe Russian phase interferometer has been used to measure the radii
of
curvature of the MMT3 test piece at several different positions on
the
optic (because of the relatively small RC, they can only measure 1
cm
aperatures). Nevertheless, the results are quite encouraging
- the RC for
all of the tested areas falls within 0.01 % (about the limit of
measurement error) of each other and of the specified value.
High Power Testing -
We set up a vacuum chamber to measure thermal lensing in the EOT Faraday
under LIGO vacuum conditions. Before making a vacuum, we made
measurement
at the max YAG power. This showed the optical path change of 70 nm
at over
the YAG waist (1.5 mm), which is the same as the measurement we made
for
the FDD. Then we evacuated the chamber and repeated the same measurement
under the same optical arrangement. The result showed the same optical
path change as the atmospheric case.
Core Optics Procurement and Metrology -- GariLynn Billingsley
-------------------------------------------------------------
2 BS have arrived from CSIRO and been shipped to REO. 2 2ITMs
are to
arrive here the afternoon of the 18th, these will be inspected then
shipped
immediately to REO. The remaining 2ITMs and 2 BS are to
ship this week,
and should arrive at CIT by 3 July at the latest.
All utilities and instrumentation necessary for operation of the IR
interferometer are scheduled for completion before the end of June,
this
supports our schedule for calibration and for testing of the coated
COCs.
Core Optics Coatings -- Helena Armandula
--------------------------------------------------
REO contract - COC's coating: Received two RM's coated and two more
are in
transit to Caltech. Two paired SPETM's (002 and 003), are being coated
at
this time.
Other REO coatings: Sent a RFQ to coat six 3" optics and one pathfinder
to
validate cleaning procedures under loss scanner.
Sent a RFQ to manufacture and coat several 2" mirrors to be used by
M.
Smith. Peter King's substrates have been coated and are ready to be
shipped
to Caltech.
Hanford Lab.: Working with D. Cook on water system issues.
Cleaning procedures: Cemented some magnet assemblies to an optic to
test
once again the cleaning process. The assembled optic is being vacuum
baked
to outgas the epoxy, expect to have information about optic contamination
and cleaning after epoxy bake by the end of the week.
Indium pressure seals: Ordered indium, developed some cleaning steps
for the
aluminum dumbbells.
Core Optics Support -- Michael Smith
------------------------------------
PO TELESCOPE MOCK-UP/PROTOTYPE:
K. Mailand has given an order for one set of PO telescope aluminum
supports
and gimbal mounts to the shop. He is working on the details of the
PO
telescope secondary mirror mount, which will be sent out for prototype
fabrication.
BEAM-DUMPS:
A. Badalian is working on a universal mounting support structure for
the
beam dumps in the BSC chamber, which will reduce the complexity of
the
previous unique mounting structure for each specific beam-dump. The
potential interference with the FMy lever beam passing through the
optical
port in BSC8 has not yet been checked.
PO TELESCOPE MIRRORS:
D. Rose has completed specification drawings for the parabolic primary
and
secondary mirrors of the PO telescope. M. Smith has prepared specification
documents.
ETM PO BEAM:
D. Rose has developed an ASAP model of the pupil relay for the ETM
PO beam.
He is in the process of evaluating the image quality and displacement
linearity.
ASAP OPTICAL MODELING:
BRO has not satisfactorily resolved plot conversion difficulties to
AUTO
CAD. Our present recourse is to plot smaller regions to ensure plot
accuracy. D. Rose has entered the most recent 2K and 4K IOO ASAP data
into
the ASAP ILD.
FARADAY ISOLATOR:
M. Smith has completed a specification document and a sole-source
justification for the Faraday rotator. It was decided to specify the
polarizers separately from the rotator.
STEERING MIRRORS:
M. Smith has given a specification for 2in steering mirrors for the
PO
beams to H. Armandula. She will coordinate purchasing the blanks and
coating by REO.
--------------------------
Isolation Group -- M. Fine
--------------------------
Seismic Design (Mike Fine)
--------------------------------------
1. Coil Spring Testing:
The temperature controlled enclosure has now been operational at Hytec.
The temperature inside is stable within 0.1 degree C of 21 degrees.
Testing is progressing; Hytec should be ready soon for another shipment
to
Astropak. They have examined a few more springs (the "rejects"
from the
first shipment) for aluminum tube spacing (by locating the kinks in
the
outer tube). The results are fairly conclusive in confirming the suspicion
that contacts between sucessive aluminum pieces is in large part responsible
for the lower damping observed on some springs.
2. Coarse Actuator:
Rack-based computer has arrived at Hytec and they have installed the
Galil
controller board and a current version of the CAS software. From now
on,
coarse actuation tests will be performed using this computer system.
The prototype stainless steel scissors table is currently being tested.
The purchase order for the pneumatic components has been placed. The
PO
includes all the pneumatic components necessary for the first
article prototype at Hytec. In addition, the multiplexing components
have
been purchase in order to test the functionality of the pneumatic
multiplexing system. The pneumatic hardware is expected early
next week.
3. Air Bearing Assembly
Specialty Components has completed the machining operations and have
sent
the bearings to be hard coated. They will be lapped and shipped
at the end
of this process. It appears that the bearings will be finished
and shipped
to Hytec early next week.
Suspension -- (Janeen Hazel/Mark Barton/Mike Fine)
-------------------------------------------------------------------
1. LOS Fabrication:
The structure first article has been received from Brookfield. The
initial
inspection has revealed several discrepancies; most notable is the
incorrect machining of the compound angles on the support brackets.
Janeen
has arranged to have the article CMM-inspected at JPL next week.
2. Alignment Fixture:
We held a kick-off meeting with Superior this Tuesday. CDI's Keith
Swords
came out for the meeting. Superior had assigned a machinist to each
of the
four fixtures and each man was quite thorough in going over the print
and
asking questions. The big issues were the ones we already knew about
- the
overall length of the inside of the BSC chambers at the rim with regards
to
the support beam and the problem with the 200 piece minimum/48 week
lead
time for the stainless bearings in the alignment fixture.
Janeen will be working these issues, along with a number of others
in the
coming week.
---------------------------------------------------------
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)
--------------------------------------------------------------------
No report received.
Physics Environment Monitor (Alex Marin)
-------------------------------------------
AM is in Hanford setting up the PEM carts. The first PEM/DAQ cart was
assembled
is is working fine. The second system (LA PC ) will be assembled this
week
as well.
Both systems will be used for the first article HAM/SEI tests.
Some of the weather monitor components will be tested by Ray (U of
Oregon) and
we will also discuss the magnetic excitation system.
Optical Contamination (Daqun Li)
--------------------------------
Cavity 2, loaded with a batch of viton ~25% of the surface area of
material in a BSC, continues to slowly pump down. It will be
ready to start exposure testing in ~ 1 week.
-----------------------------------------
Control and Data System -- R. Bork
(WBS 1.2.2)
-------------------------------------------
Hanford
========
- Watchdog boards have been installed into all Vacuum Control racks.
Software drivers have been installed. Watchdog relays will be used
when the
necessary rewiring has been completed.
- CDS network in Right Mid station was cut due to cable damage by the
clean room assembly. Cable was freed and repaired.
- ATM video from the Right End Station has been stable for over a week.
Tests are being planned to determine if the software decompression
routines
are fast enough to register a fast mode change of the laser.
- Corner station weather station has been wired to the Mass Storage
Room
controller. System is ready for RS232 interface to EPICS.
DAQS
=====
- Reflective memory and DAQ Controller documents at first draft stage.
Programming using this design has started.
- ICS110B returned from factory. Still unable to get data from the unit.
Work continues with ICS to determine what the problem is.
- New 40m system ready for installation once the differential Ultra
SCSI
board
(needed to connect to new RAID system) arrives. New features of the
system:
- Architecture: Reflected memory net direct to Sun server (replacing
fast
ethernet). Along with higher performance, we no longer experience the
network
hangup problems experienced with the fast ethernet, which has caused
the
present
system to crash at random times.
- Framebuilder: Now runs on the Sun Ultra. Interface for configuration
and
operation is through 'Sun Java Server' and Netscape. Frame configuration
information is kept in 'MySQL', a free-ware database, with TCL/TK based
forms.
- Network Data Server: All data requests are made through a
network data
server, which replaces direct file access by user processes.
- EPICS Data Collection Unit (EDCU): DAQS now able to acquire
data from
EPICS
based control systems across the CDS network.
- Data viewer: Several new features:
- Waterfall plots
- Carpet plots
- Correlations
- Trend data
- Multiple overlaid plots (signal vs time
and FFT modes)
- 'Scope Trigger' mode (stops realtime display
on user defined trigger)
- Persistence mode
- Xmgr data analysis features remain interactive
while viewer is running
Suspensions
============
- In process of testing first production LOS controller (50% complete).
- Satellite module being stuffed.
- Production SOS controllers should arrive early next week.
PSL
=====
- No report: R. Abbott is out this week.
ASC
=====
- Finished designs for demodulator boards and quad photodiode boards.
Input Optics:
=============
1) EO Shutter Control prototype PCB is on order. Due next Monday.
2) Mode Cleaner Length Servo: Xing has got the demodulator prototype
working
and is debugging the programmable gain control using a STAMP chip.
Timing Systems:
================
The Level 1 clock fanout design is done. The design of a GPS clock
test
module is done. This will be used to test the timing of the Level 1
and 2
fanout modules. The Level 2 fanout is almost complete. Will finish
when Dale
returns at the end of the month.
| CR-980019 | WBS 1.2.1 | Development and Qualification of Core Optics Components (COC) Cleaning Procedures | J. Camp |
| CR-980020 | WBS 1.2.1 | Additional Lasers and Laser Support | J. Camp |
| CR-980021 | WBS 1.2.1 | Laser/Optics Staffing | J. Camp |
| C | Contractual/Procurement | 94 |
| D | Drawings & CAD | 84 |
| E | Engineering Documentation | 20 |
| G | Graphics/Presentations | 1 |
| L | Letters | 6 |
| M | Management or Policy | 26 |
| P | Publications/Formal Notes | 0 |
| T | Technical Notes, Informal | 4 |
1.4.3 Systems Engineering
1.4.3.1 Systems Engineering & Integration (AL, BB, PK, CC, JK, DC)
Cable Tray Specification
The first draft specification has been reviewed and changes to the
second draft are in progress. Paul Kabot continues to progress
on the
tray layout drawings. All drawings in the specification will
be
released LIGO drawings. The text for the second draft will be
finished
tomorrow afternoon.
ELEVATED PLATFORM FOR MOCK UPS
Layout of a platform which attaches to the flange of the HAM chamber,
has been delayed due to other priorities. Should be able to find some
time to make a sketch suitable for a wood mock up next week.
ASC LEVER LAYOUT
The lever beams in BSC 8 clear the Ghost Beam Dumps. The path layouts
in spools numbers BE-5 & BE-6, and BSCs # 3 & #7 had been delayed
but
now that Louvre Baffle design is determined, should be able to start
this layout possibly, next week. Also anticipate new ISC input in the
next week or so.
WASHINGTON OPTOMECHANICAL ILD'S
The Mid & End Station xref's are still on temporary hold waiting
for
input from the various groups (IOO, ISC,COS).
PSL/IOO XREF LAYOUTS FOR ILD'S
New plan layout for the PSL/IOO Optical Tables & Hams 1,2,7, &
8 (4k &
2k) are finished. Elevations need some minor adjustments for
completion.
OPTOMECHANICAL ILD LAYOUTS
As soon as a few more layouts are updated, the Opto-Mech ILD's will
be
revised to next engineering release as well as being presented on the
new (minor changes) drawing template.
CABLE TRAY LAYOUT ILD'S
The rough draft of the plan (sheet 1 of a bunch) will be done tomorrow,
Friday. Next will be the elevations which will probably be started
Tuesday or Wednesday of next week. Bill Baldwin already has various
section cuts completed, so a great deal has already been done.
SEISMIC TABLE BALANCE WEIGHTS
Blanks, cut & chamfered, were delivered to Mike Gerfens group in
Central Engineering yesterday, Wednesday. The parts are scheduled to
be
finished by next Tuesday or Wednesday and given to Yehuda for cleaning
& to Ed for shipping to Hanford , by 7/3/98.
RELIABILITY
Nothing significant to report.
1.4.3.3 Modeling & Data Analysis (KB / HY / AL)
Hiro:
Simulation general
Ed finished the work to implement the dynamic lodaing of modules. This
makes it easy to add new modules and revise existing modules. The speed
overhead is minial and the symbolic debugging is effectively fully
supported. This makes the module development even modular, and Ed is
writing examples and documents how to write a new module. This will
include a wrapper to let one use C and FORTRAN to write the code part
of the new module.
Alfi
A few bugs have been fixed. A strategy has been planned to support
multiple subgroups and to let programmers easily add new primitives.
The definition of the modules and shared objects can be located in
various directories in the E2E_PATH. E.g., PSL and COC can have their
primitives and box files, and they are properly recognized by alfi
and
adlib.
Mode support in adlib
The implementation of a single mode field as a template class of more
generic field has been finished, including the validation and speed
testing. There is a 10-20% overhead due to the use of template when
compiled without optimization, but the overhead is gone when compiled
with optimization. The details of the field generation, supporting
both
scalar and multimode field and proper propagation of the field was
discussed, designed and documented.
Adlib code validation
Scalar field optics code validation has been finished up to coupled
cavity using primitive mirrors and summation cavities. Some changes
were needed in the summation cavity to make it work as a part of
coupled cavity. digital_filter did not work for some filter when
the
time step is very small. This has been fixed by adopting long double,
in stead of double. This will be supported as an option.
Documentation
End to End model tutorial document is written, and will be available
next monday,
/home/e2e/Software/docs/e2e/e2e_manuals/T980051-GettingStarted.fm5
SEI/SUS
Somuya found some extra calculation needed, and the implementation of
a
simple pendulum in the e2e model was postponed until he finishes the
work, supposedly not long.
Blackburn:
Philip Ehrens started working with LIGO this week. He is positioning
himself to become LIGO's TCL/TK/Tclet Guru. Everyone should stop by
the graduate student's office on the 3rd floor and welcome Phil when
you get a chance. Here are his bullets for this week:
* Familiarized myself with the Solaris OS and the computers on the network.
* Installed some software which I am already familiar with from Linux
(the
MC file browser, the VIM5.1 text editor, the rxvt color terminal,
pgp, and
Tcl/Tk release 8p2).
* Read the document "LIGO Data Analysis System Software..." and began
to read
The document "White Paper Outlining the Data Analysis System...".
* Began to study Tcl, Using "Effective Tcl/Tk Programming" as a guide.
KB met with Stuart Anderson and the service representative from PMD
to
tackle some of the problems associated with our new RAID system. This
is the second representative we have seen concerning the RAID system
and the flux of information and results from having met with the rep
this week were greatly improved from the experiences of last week.
See
Stuart's report for more information.
KB put together the quarterly report for the LDAS Software Group this
week. This is a consolidation of work carried out by KB, Roy Williams,
Bruce Sears and Walid Majid.
KB just recieved the C++ Component Series from ObjectSpace this week.
This package includes a "Standard Toolkit", "Helper Toolkit", "Thread
Toolkit", "Time Toolkit", "IO Toolkit", "Streaming Toolkit", "File
Toolkit", "Pipe Toolkit", "Network Toolkit", "Security Toolkit",
"Web Toolkit" and "Platform Toolkit for Unix" along with User Guides
and Reference Manuals on a CDROM. These Toolkits are distributed in
encripted source code and for the version that was delivered this
week, I will have to be on a Sun workstation with Solaris 2.4 or 2.5
to be able to decript the source code. A future release will be
shipped that support Solaris 2.5 and Linux. Apparently the package
also works with Windows NT and 95 but I have yet to look into the
details of this. Of all the toolkits provided only the "Network"
is of immediate interest as it provides a C++ socket class library.
KB interviewed two prospective candidates for a position developing
the LIGO database components for the LDAS.
KB was able to get one version of netscape working with both the
acroread plugin and the TCL/TK plugin on his workstation from his
account this week. The integration of these two plugins are in
particularly orthogonal support of each other and making them
match up under Solaris was not easy.
Anderson:
I have worked on installing, configuring, and testing the prototype
data acquisition RAID system.
See, http://www.srl.caltech.edu/personnel/sba/raid
for the current
status and performance numbers.
Collaborative Research (LS Finn, Mohanty, Mukherjee, Romano)
No Report.
1.4.4.2 General Computing (LW / TE / GS)
Sanders:
I made a first attempt to implement client NIS+ services on a Linux
workstation running in our network. This attempt has not succeeded
in
producing a working system but much progress was made.
To do this, I installed the latest alpha versions of the glibc
libraries, nistools, and new pluggable authentication modules (PAM).
I
disabled incompatible features of the password database. I edited the
configuration files for name services and identification of the NIS+
server. Larry then defined my workstations "credentials" in the NIS+
database. I initiated the NIS+ services on the server and created a
rootkey and added a commend to rc.local to synchronize server/client
clocks during
boot.
After rebooting, the client workstation was accessing the NIS+
database for some services but all client workstation logins were
blocked! There are indications of a memory segmentation fault
and the
client's failure to reach the server during the very early stages of
the Linux boot. At that point Larry stepped in to help track down the
problem which is indicated by a system I/O message related to finding
a
route to the server. We have worked together, running the client in
single user mode, to track this down and attempted a number of
fixes
related to the boot cycle initialization files (rc.d) and the order
in
which NIS+ services are looked up locally and at the server. This has
not succeeded. This work will resume after the Hanford safety review
next week.
MIT:
1. Upgraded to Netscape 4.05.
2. Continuing to plan and prepare for our move to our new building.
Livingston:
1. Working on getting the mail/web server setup.
2. Preparing the new IP/Name listing.
Hanford:
1. The Mathematica Network license transfer, Service Contract and
upgrade software arrived Tuesday afternoon. Unfortunately, we
don't
have any documentation and the installation process is not self-
evident. The few instructions that came with the upgrade keep referring
to The System Administrator Guide for instructions on how to run things
like the license manager. The Service Contract does provide technical
support, which is being used to get the upgrade installed and running.
2. The main user account 4GB disk partition, /opt/ligo/a, on the GC
server, ligo168, has been running at >90% full, which has caused some
problems trying to save or move large files. CDS has an external
9GB
disk which is not currently being used, so it was partitioned into
two
4GB slices and the Vacuum Controls software has been moved from the
GC
external disk to the CDS disk.
3. Two more PCs have been setup in the Student's office, they have been
assigned the last two ISDN line IP addresses. There are one or
two IP
addresses that can be made available, if needed. While Larry
Wallace
is here next week, the top priority items will be getting Security
on
the T1 line setup and establishing subnets between the T1 and the ISDN
so that some computers can be moved to the T1 line temporary IP
addresses. Dave Barker is also calling the ISDN provider to get
cost
estimates for additional IP addresses, assuming the T1 permanent IP
addresses may not be available for some time.
CIT:
1. Barbara K. devoted this week to web work:
- worked on a redesign of the home page,
- added Bochner's thesis to the Thesis page (have yet to add it to
Publications page),
- replaced job ad on Livingston page,
- added some conferences to LIGO Talks page, and
- added links to LSC meeting announcement.
2. Barbara K. met with Linda Turner to discuss changes to DCC database
for Traveler forms. We will set up one-to-many links, change
the data
entry forms, and possibly set up some queries/reports for part numbers
and sub-assembly numbers.
3. Barbara K. made minor changes to Outgassing database and put a test
copy on sirius for Albert.
4. Finished redoing the backups on sirius. The backup tapes on the
other servers were found to be ok, just the tapes from sirius had
problems.
5. Larry W. have been working multiple procurement issues. Orders have
been placed or are in the process of going through the system for
workstations, PC's, another server (one to replace the one at Caltech
which will be sent to Livingston), and license upgrades for matlab
and
Frame (Unix versions).
6. A walk through for installing fibers from Millikan to Bridge Annex
has taken place. The installation of new networks in other buildings
may cause a small delay in the Millikan installation but as of now
it
is still on schedule. Millikan should be ready for us to start
moving
into on July 18th.
7. The hardware of a SPARC 5 that had been damaged by a water leak was
rebuilt and Solaris 2.6 was loaded on the system. The rebuild of the
hardware went quite well other than we were sent the wrong CD.
8. A couple more workstations were upgraded to Solaris 2.6. After
getting the new people up to speed on the LIGO procedures that will
be
a high priority for them, getting everyone up to Solaris 2.6.
9. The upgrading of the PC's for the engineers so far has proven to
be
more time consuming than planned. The issue will be addressed again
once the existing upgrade unit is working correctly. Suresh is working
the issue at this time.
10. Once again the PC's were having some problems printing to hp3. A
rebuild of the configuration file resolved the problem.
11. Just as a note another PC had problems after being upgraded to MS
Office 97. For some reason a number of PC's experience problems
after
the upgrade. In most cases reloading the device drivers for the network
card and using explicit commands for the Exceed sessions resolved the
problems the users were having.
Date: Thu, 18 Jun 1998 11:32:27 -0700
From: Elizabeth Wood <ewood@ligo.caltech.edu>
Irene Baldon
Arranged and processed the paper work for 10 trips. Worked on the ever present backlog of Expense Reports and completed a significant amount of reports.
Finalized all the paper work for travel of the Summer Surf Students working here and at Hanford, WA.
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 Student Payroll, incorporating various recent changes, new
hires, terminations and the processing of Vacation/Sick Leave accounting.
Rita Torres
For I. Petrac did change order No. 6 to Breault Research Organization, change order No. 2 to CDI Managed CaddServices. Did letter to transmit an advance copy of change order No. 2 to Pegasus.
For E. Jasnow prepared RFQ EJ-299 for Hanford Mechanical Maintenance.
The camera-ready package
was sent to LHO who is in charge of distributing to bidders.
Requested that LHO send a copy to the DCC.
For B. Tyler, LHO and CIT LIGO management did edits to various safety procedures ready for release. Obtained hard copies of signed/released procedures and have these available in my office; submitted a copy of same to the DCC.
With S. Meshkov updated Visitor Program forms and progress report to
submit to the NSF. The current document is
Revision B.
Printed colored labels for use by Y. Kommemi for the cleaning, baking
and packing operation. Walked around on the 2nd & 3rd floors to capture
names of LIGO people. Name tags will
eventually appear in all of our locations.
INFORMATION
ITS (Information Tech. Systems - formerly CCO) can resolve minor computer
problems free of charge. I recently called them to get sound from
my computer and they responded quickly.
When you email your request (help@cco.caltech.edu)
1) State your operating system (example Windows '95)
2) The specific problem(s)
3) Your email address & phone.
You will be assigned a number so they can follow up your
request.
Elizabeth Wood
Called telecommunications to get Bill Althouse’s voicemail working again. It works now.
Talked to the carpenter shop to get the shelf finally installed in the third floor coffee room. They did it on Tuesday. Finally.
For the Hanford Safety Review Meeting: Prepared ten procedure notebooks. Made reservations for dinner and ordered the food for the breaks and lunches.
Received Jill Berry’s application and part of the I-9 identification for her job.
Attended meeting with Lee Stevens in HR along with Gary in addition to my weekly meeting with Miriam Beltran del Rio.
Made up a list of key holders using Excel to determine holders of LIGO Medeco keys who no longer work for LIGO. We have issued lots and lots of LIGO keys to people who are completely unknown to me. As a result of developing the incoming/termination checklist with Bill Tyler, I will be able to begin to collect stray keys. I have already gotten one from a departing graduated former undergrad.
With Barbara K.’s assistance, we will make a better attempt at keeping the employment opportunities current on the LIGO web page. On the Livingston web site, I found a job that has been closed for a month that had been posted for about a year, apparently unseen by the people we’d like to work with us. Barbara and I discussed moving the employment opportunities to a more visible place on the web page.
Began inquiries into getting tie lines (direct phone lines from Caltech
to Hanford and Livingston). I will need to communicate with individual
long-distance carriers to get the best price. Some may give great
prices, but may not have the facilities to do it.
Dorothy Lloyd
Reconciled March, April and May CA47 Work Order reports.
Prepared report for Purchasing (Jose) on all LIGO procurements since January 1998 over $5K.
Entered AP30 reports into the database. 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.
Continued to monitor and support the temp.
Provided clerical support were needed.
=========================================================
LIGO Hanford Observatory (LHO) Operations (F. Raab)
=========================================================
REU Projects:
-------------
(R. Savage)
RGA ANALYSIS (Betsy Weaver)
This week, Kyle Ryan and I picked up the major components of the bake
oven
hoist from Larsen Machining after they had been sandblasted and
powder-coated "LIGO Blue." They looked great, and now even better,
since
we have loaded them into the bake oven lab room and started assembly.
We
also had to drill holes in the floor to anchor the 14.5 foot high hoist.
With the help of Larry Larsen himself, we have almost finished assembling
the hoist/pulley system. The next step in construction of the
Bake Oven
will be to install the baseplate and bell jar.
PSL CHARACTERIZATION (Janet Casperson)
I have spent the majority of this week in getting the optics lab in
working
order. I helped Rick Savage to connect the laser to the controller
and
chiller and to bind these cables in a compact manner which will not
pose a
trip hazard to workers in the lab. This work has made it possible
for us
to turn on the 10W laser for the first time. I am currently working
on
LabVIEW program which will enable us to monitor the Laser's power over
long
periods of time. Also, I have been working on a calculation which
will
give the focal lengths of the two cylindrical lenses needed to circularize
the 10W laser's output beam.
TECHNICAL SLAB CHARACTERIZATION (T. Islam)
I spent the first few days familiarizing myself with the
equipment and with the papers and reports which dealt with the mechanical
aspects of LIGO. I've gotten a good feel on how those results for LIGO
were derived, and I also think I know how to use the DSA well enough
to
take measurements (working with the accelerometers is another
story).
I'm also looking into an electronic calibration of the accelerometers.
Hopefully I'll be sure to have the accelerometers calibrated by tomorrow,
and by next week I should have an idea on the electronic calibration
as
well as be ready to make preliminary measurements.
ALIGNMENT SENSITIVITY OF ADVANCED INTERFEROMETER
CONFIGURATIONS (M. Zwikel)
My first week here can be divided into two periods. The first
of these
(confusion) ended five minutes ago, and the second just began.
Since
Monday I've been re-deriving some of the basic theoretical calculations
for
the alignment sensitivity model -- phase mod/demodulation, distorted
mirror
operators, et. al. Yesterday and today, Daniel & I setup
the Mathematica
system that I'll be simulating some more advanced alignment problems
on.
Just a little while ago, at the beginning of period two, Daniel explained
the game plan and immediate simulation objectives, so for the remainder
of
today and tomorrow I'll start confirming basic results and experimenting
with small misalignments.
Bake Oven:
----------
(K. Ryan)
As of 6-18-98, the hoist is positioned and anchored
to the floor and the control panel enclosure is
mounted.
All of the outstanding orders have been received
including
the bake blankets. The blankets have not been
"fit" yet
and a few misc. odds & ends still need to be
purchased,
however.
By the end of 6-19-98, I expect
to have the bell jar
attached to the hoist, the base plate stand positioned
and
anchored to the floor, the base plate mounted to
the stand
and some of the internal components installed into
the con-
trol panel. Additionally, we will have "fit"
the blankets
by then.
By the end of 6-25-98, we should
be able to begin
the thermodynamic characterization experimentation
of the
system (fingers crossed!) barring any unforeseen
obstacles.
HAM 1st-Article Test:
---------------------
(C. Gray, H. Radkins)
Results from 1st Test of working with Support Table in the Mock Up:
- One of the carbon steel screws seized in
a Support Tube
- V-Blocks did not allow any movement with
Spherical Bearing; clearance
holes were enlarged, bolt-head clearances
were made, and washers
were acquired
- Forklift Boom had to be clamped to Forklift
for stability
- Some of the lengths given for various screws
from the assembly
drawings
were not correct.
Received first shipments of In-Vacuum components (ie. Springs, Shims, and Seats)
Stan Whitcomb arrived 6/15 to offer his assistance
Reassembled Rail System with new Rail Support pieces. Modifying
of new pieces
should be made to allow adjustment in Pier locations.
2nd Test with Support Table in Mock Up area yielded good results with
the modified
V-Blocks
In-Vacuum hardware (ie. screws) on the way from Hytec
Only two Bellows will be used
Prepared for Final Design Review (FDR) presentation, which will be at
6/19 at 8:30am
Optics & Lasers:
----------------
(D. Cook)
I'm finishing up on the Operational Reports and Documents for the meeting
here on 6/23. I'm also having the Optics Laboratory lights changed
to allow
us to darken portions of the lab to make alignment procedures easier
etc.
I'm still working on the some of the remaining details of the labs,
installing warning signs, labels and layouts, etc. We are still working
out
the details on the clean station of the Optics Lab as far as getting
a
water system on-line. The orders for the Laminar Flow benches and their
tables have been placed. Particle counting continues at various stations
with printed results. I have an additional printer now which I will
attach
to a particle counter and install it in the HAM first article area.
I expect to have the majority of the LHO personnel through a Laser
Training session by today. Most of the current personnel have completed
the
"baseline" eye exam requirements and we have the records on file.
Computing Systems:
------------------
(C. Patton)
The Mathematica Network license transfer, Service Contract and upgrade
software arrived Tuesday afternoon. Unfortunately, we don't have
any
documentation and the installation process is not self-evident.
The few
instructions that came with the upgrade keep referring to The System
Administrator Guide for instructions on how to run things like the
license manager. The Service Contract does provide technical
support,
which is being used to get the upgrade installed and running.
I'm also
ordering a set of documentation.
Our main user account 4GB disk partition, /opt/ligo/a, on the GC server,
ligo168, has been running at >90% full, which has caused some problems
trying to save or move large files. CDS has an external 9GB disk
which
is not currently being used, so it was partitioned into two 4GB slices
and the Vacuum Controls software has been moved from the GC external
disk to the CDS disk. This frees up 4GBs of disk space on the
GC disk.
Daniel Sigg's (the most prolific user of /opt/ligo/a at 1GB) user
account will be moved to the new free space which is now called
/opt/ligo/c. This means the rest of the user's still on /opt/ligo/a
will now have 1GB of free space to work with.
Two more PCs have been setup in the Student's office, they have been
assigned the last two ISDN line IP addresses. There are one or
two IP
addresses that can be made available, if needed. While Larry
Wallace is
here next week, the top priority items will be getting Security on
the
T1 line setup and establishing subnets between the T1 and the ISDN
so
that some computers can be moved to the T1 line temporary IP addresses.
Dave Barker is also calling the ISDN provider to get cost estimates
for
additional IP addresses, assuming the T1 permanent IP addresses may
not
be available for some time.
Electronics:
------------
(R. McCarthy)
Began Assembly of the IOO test stand Rack as well as the SUS Rack assembly.
Worked with PSI on some minor electrical issues.
Cables for the weather stations at each of the buildings were installed
and
terminated at the interface on the roof. Termination in the conorstation
is temporarily installed, waiting Al. plates for mounting of equipment.
Found more Air Terminals on the cornerstation broken. Placed P.O.
to buy
protective tripods to prevent damage to equipment during wind storms.
Had Sun River remove temporary cable that was hanging on the back side
of
Y-mid station.
Continue to recieve equipment for EE-Lab.
**************************************************************************
* Electronics Lab has come together nicely -
a welcome change from the
* "bunker" days of yore!
FJR
**************************************************************************
Beam-Tube Bake Out:
-------------------
(M. Lubinski, M. Guenther, K. Stiff and W. Althouse)
Electrical Support Services Contract (input from Sun River):
Accomplishments:
Two of the DC power supply container/transformer assembly flat bed
trailers
were completed and transported to the LIGO site. Five 45 KVA
transformers
were set up at the designated locations and inspected by Labor and
Industries.
Problems/Concerns:
Some wiring modification corrections are needed in the B-2 Switchgear.
The
modifications are to correct factory wiring problems. The error
was found
when setup for ground fault testing by the testing vendor happened.
(ML note: Power is available at ports Y 2-2, 2-4, 2-5, 2-6, 2-8.
Power at
the DC power supply connections will be done this week. All "B-2"
Switchgear modifications are complete and testing will be complete
prior to
power up of the Switchgear. All of the Cryopump compressors have
been
checked for phase rotation and are correct.)
Sun River has begun laying out the MCM 500 DC power cables and trimming
them to the required length. 3 of the 16 return cables have been
laid.
Cryopumps:
No pump installation occurred this week.
Data Acquisition and Temperature Control System:
Preparations are underway to move of the Bakeout Process Control computer
to the
End Station on "Y" arm. The data cable and I/O Boxes will be
placed along
the length of Y-2 beam tube module, and communications testing with
the
computer will begin.
RGA
The RGA has arrived on site.
****************************************************************************
* It is REALLY impressive to watch the fast progress
of moving things into
* place for the bakeout. To give a feeling for
scale, the bakeout hardware
* convincingly filled up about 2500 sq ft in
the warehouse and the coils
* of cabling filled a comparable area in the
lay-down area. Readiness
* review is June 25. FJR
****************************************************************************
For additional information about this report, contact sanders@ligo.caltech.edu