Week of February 1, 1999

Hello All!
HAPPENINGS:
HOLE DRILLING
Just a reminder...hole drilling is tentatively set for March 15, 1999.
MACHINING OF PRIMARY BEAM LINE TRANSITION CHAMBER
The MST machine shop has expressed some concern over the distorted
material inside the nose of the hemisphere. It appears as though the
hemisphere slipped on a washer or some other surface during machining
and distorted the material closest to the small hole at the base of
the chamber. The major concern is cleanliness, content and structure
of the distorted material and its overall effect on vacuum. The machine
shop, John and I have gone back and forth
with possible repair options. The tentative decision is for the
machine shop to enlarge the small hole to the original size specified
by John for incorporating the nose piece. If possible, the damaged
material will be machined from the inside of the hemisphere (this does
not seem like an easy machining task due to the location of the
material and shape of the hemisphere). If machining of the material
is not possible, we will go back and reconsider the various other
options. All other options increase the size of the machined hole and
increase the OD of the nose piece at the weld edge.
It has also been decided that the chamber will not be electropolished.
The remaining of the inner surface of the chamber is in fairly good
condition and it would take at least three weeks for the polishing.
The machine shop, now, also has primary beamline assembly drawings.
PRIMARY TRANSITION CHAMBER SHUTTER
The rotary feed-thrus for the shutter arm were ordered 1/19 via
purchase order. Purchasing contacted John early this week and
recommended he order them by credit card. The rotarty feed thrue
was ordered on Monday, and arrived on Thursday.
SECONDARY BEAM LINE
John has almost finished the design for the secondary beamline
transition chamber and magnet holder/keeper. The design of the
magnet holder retains nearly 80% of the secondary port viewing area.
Tentatively, the first set of secondary sweep plates are sitting
approx. 25 cm from the inner surface of the machine.
The RPI shop will be machining both pieces.
RPI MACHINE SHOP
Jim is currently working on a plate for the shutter arm.
The rotarty feedthru for the shutter is also in the queue awaiting
modification.
The secondary beamline magnet holder/keeper is also in the shop.
HIGH VOLTAGE SHELF AND HV ENCLOSURE
Both the HV shelf and HV platform are progressing toward a finalized
design. Uday has drawn up a design for the HV enclosure and worked
out the details of material needed. Based on suggestions by Tom
Lovell and availability of material here, the enclosure frame will be
made of unistrut, and the screening which will be fastened inside the
frame will be aluminum expansion metal. Those materials that are not
available here will be ordered by Uday before the end of the week.
The design has also been approved by Tom Lovell.
TRAJECTORY CALCULATIONS FOR THE LEVITATED DIPOLE EXPERIMANT (LDX)
Lei has pretty much gotten the Bfield calculations done. He is now
working on running the trajectory code. The code crashes when he
tries to calculate a trajectory. He is looking into using a debugging
software called dbx.
ROWE CONNECTORS
Paul has confirmed that the connectors ordered are indeed the
connectors we used on the 20kV Treks in Texas. Lei has been working
at modifying the back panels of the Treks and installing the
connectors. Per Pauls suggestions, the connection to the pin on the
Rowe connector, inside the Trek is being
made with a large amount of solder and potted with clear silicone
RTV.
HIBP13 DISK
The disk, for the sun here in WI, arrived Wednesday afternoon.
The machine is still not online. Grant thought that the machine was a
sparc5, but it is an Ultra1. The boot OS is different on the two
machines, so the Ultra1 will not boot since the OS on the disk is that
for a Sparc5 (we realized the problem after a few hours of unsuccessful
boot trials). Grant will send the OS to me and we will try to fix
the disk here.
HIBP PRESENTATION
Stewart Prager has requested an HIBP presentation. After discussion
with Uday and Lei, we asked to decline a presentation. His response
was that we uderestimate our progress and the interest of the MST
group and again requested an update. We agreed that an update on the
hardware would be given on Wednesday, Feb 17 at 4pm. Any suggestions
on content and format are welcome.
IMMEDIATE ACTION ITEMS
_____________________________________________________________________
LEI
LAST MONTH
begin learning to run MST in-progress
THIS WEEK - 2/1/99
Revisit old trajectory calculations complete
to determine secondary sweep location
Work on trajectories for LDX in-progress
Install HV Rowe connectors in 10 and 20kV in-progress
Treks
Modify electronics for primary beam line in-progress
(incorporate beam current readback etc)
_____________________________________________________________________
UDAY
LAST MONTH
fax to Paul inventory of items relocated
to Madison complete
send dimension drawing of interlock and
control panels to John (to be delivered
to Machine shop) complete
THIS WEEK - 2/1/99
Drawings of accelerator control panel
to machine shop complete
Drawings of vacuum interlock boxes to
machine shop complete
Design, order materials, and
pre-fabricate HV cage in-progress
Update/Complete list of HIBP control/readback/
status signals in-progress
Check on status of Rowe HV connector order
(order delivery date was 1/9/99)
Order additional equiptment needed for
computer control (ie. Jorway timing
module, LabView, fiberoptic cable)
Assemble electronics for vacuum controllers
Install into BPM controller additional
connector for Camac read-back
Order additional magnets for the secondary
beamline
_____________________________________________________________________
DIANE
Primary beamline transition chamber
drawings and hemisphere to MST machine shop complete
Order materials needed for primary
transition chamber complete
Review primary tansition chamber snout drawings
with Mark Thomas, deliver drawings to shop complete
Discuss HV platform and support structure with
Tom Lovell complete
THIS WEEK 2/1/99
Secondary bolt hole orientation and nut dimensions
to John complete
Interface with MST machine shop re: primary beam
line transition chamber in-progress
Primary beam line transition chamber assembly
drawings to machine shop complete
HIBP13 disk to Madison complete
Develop a schedule through end of drilling down time
for both us and MST (will give a version
to Tom Lovell) complete/ongoing
HIBP4 up as an X-terminal in-progress
Work on Particle Transport paper in-progress
Write HIBP summary for DOE review complete
Fix OS on hibp13

_____________________________________________________________________
PAUL
THIS WEEK
Make sure that Grant get the Ultra1 OS to Fed Ex today (Friday).
_____________________________________________________________________
KEN
THIS WEEK
Finish measurements of magnet holder fields. We'll need the magnet
holders shipped here next week - the machine shop will need to test
for fit within the PBL nose section. If you're already done with them,
maybe they can be shipped with the Ultra 1 OS cd.

_____________________________________________________________________
JOHN
THIS WEEK
Ship vacuum and accelerator control panels and boxes to Madison.
Finish grid design, assemble shutter assembly.

_____________________________________________________________________

Feel free to contact me by phone (608) 263-2967 or email (diane@hibp)
at any time.
Diane
Week of February 8, 1999
Just a short update this week.
HAPPENINGS:
MACHINING OF PRIMARY BEAM LINE TRANSITION CHAMBER
The machine shop has been working on the primary transition chamber.
It is coming along very well. I drove the hemisphere over to
Waukeshau on Thursday to have it electropolished. Yes, the decision to
electropolish is a change from last weeks e-mail.
We should have it back early next week (I will go back and get it).
It looks as though we will be able to use Johns original nose section
design and not a modified version.
They are working on machining the nose sections, so the arrival of the
magnet holders will be timely.
HIGH VOLTAGE SHELF AND HV ENCLOSURE
Dale Schutte has ordered the material for the HV enclosure. Most
parts will be delivered within the next week or two.
TRAJECTORY CALCULATIONS FOR THE LEVITATED DIPOLE EXPERIMANT (LDX)
Lei is having some discrepancies in field magnitude between the simple
dipole model and the actual LDX field. Any help or suggestions would
be appreciated.
ROWE CONNECTORS
Lei has installed Rowe connectors on the 10 and 20 kV Treks
HIBP13 DISK
We've obtained Ultra OS disks here at WI, and with Grants help have gotten
the Ultra 90% operational. Just a few more things to update and fix.
HIBP PRESENTATION
Working on it. Have decided that it will focus on hardware and that
detailed descriptions of the sweeps, accelerator/HV, analyzer, and
plasma suppression can be presented in future presentations. We will
touch on these topics, but I don't expect to have time to go into them
in any detail.
IMMEDIATE ACTION ITEMS
_____________________________________________________________________
LEI
LAST MONTH
begin learning to run MST in-progress

THIS WEEK - 2/8/99
Work on trajectories for LDX in-progress
Install HV Rowe connectors in 10 and 20kV complete
Treks
Modify electronics for primary beam line in-progress
(incorporate beam current readback etc)
_____________________________________________________________________
UDAY
WEEK of - 2/1/99
Design, order materials, and
pre-fabricate HV cage in-progress
Update/Complete list of HIBP control/readback/
status signals in-progress
Check on status of Rowe HV connector order
(order delivery date was 1/9/99)
Order additional equiptment needed for
computer control (ie. Jorway timing
module, LabView, fiberoptic cable)
Assemble electronics for vacuum controllers
Install into BPM controller additional
connector for Camac read-back
Order additional magnets for the secondary
beamline
_____________________________________________________________________
DIANE
WEEK of - 2/1/99
Interface with MST machine shop re: primary beam
line transition chamber in-progress
Develop a schedule through end of drilling down time
for both us and MST (will give a version
to Tom Lovell) complete/ongoing
HIBP4 up as an X-terminal in-progress
Work on Particle Transport paper in-progress
Fix OS on hibp13 complete
WEEK of 2/8/99
deliver hemisphere for electropolishing complete
work on presentation in-progress
Feel free to contact me by phone (608) 263-2967 or email (diane@hibp)
at any time.

Diane

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