Resistive magnet plans upgrades and new magnets

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POWERED MAGNETS _at_ NHMFL 3rd 4th Grant Cycles
2nd GRANT CYCLE
Jan. 2008
Jan. 2001
33 T, Florida-Bitter magnet - 1996
5th Grant Cycle
Jan 2013
4th Grant Cycle
3rd Grant Cycle
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UPGRADE SCHEDULE
Cell 5 50 mm, 25 T ? 32 T Last Parts Arrive gt
1/1/05 Coils Ready 2/15/05 Installation 3/15/05
4/15/05 Last years Q2 2005 Uncertainties
Schedules of 10 suppliers of 40 line items
12000 pieces.
Cell 7 50 ppm, 23.5 T ? 28 T Heads
Shipped 10/18/04 Design Finished 10/31/04 P.O.s
out 12/31/04 Last Parts arrive gt 5/1/05 Coils
Ready gt 7/1/05 Installation TBD Last years Q4
2005 Uncertainties Suppliers schedules
Cell 8 32 mm, 30 T ? 35 T Last Parts gt
3/1/05 Coils Ready 5/15/05 Installation not
scheduled Last years Q3 2005 Uncertainties
Schedules of 20 suppliers of 80 line items,
15000 pieces.
Cell 9 32 mm, 33 T ? 35 T Installation TBD (Q2
2006?) Last years none Uncertainties 33 T
Lifetime
Cell 12 32 mm, 33 T ? 35 T Installation TBD (Q1
2007?) Last years none Uncertainties 33 T
Lifetime
Cell 15 Hybrid Upgrade HTS Leads ready Q1
2005 Wire arrival Q3 2005 Outsert Coil ready
Q3 2006 Shutdown TBD 47 T
Testing TBD Pursue 50 T! TBD
Cell 10? 50 mm, 32 T (Dil Fridge) Installation 3
rd quarter 2006? Uncertainty Funding
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HOUSING UPGRADES CELLS 5 7
30 mm
250 mm
Heads of Housings in cells 5 7 to be modified
to provide greater strength and 30 mm reduced
distance to field center from top.
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HOUSING UPGRADES CELLS 8, 9, 12
66 mm
Heads of Housings in cells 8, 9, 12, 6 to be
modified to provide greater strength and 66 mm
increased distance to field center.
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FAR-INFRARED SPECTROMETRY
Set of Solenoids with mid-plane split to allow
photon scattering through mid-plane (Voigt
configuration). Sample diameter 5 mm.
Vertical take-off angle 5.7 (f5).
FIRS Challenge Mid-plane region must include
scattering space (vacuum), structure (500 tons),
cooling water (120 l/s), current (20 kA),
insulation, seals, assembly/maintenance plan.
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FIRS MAGNET PRELIMINARY REQUIREMENTS
User Input Needed. Contact B. Brandt, Y.-J.
Wang User (sub-) Committee discussion Q105.
FEATURE REQUIREMENT Pulse Length dc ( 8
hours) Configuration Vertical Split Power 20
MW resistive or 10 MW hybrid Clamping Force 500
600 tons reacted by mid-plate. Sample size 5
mm Slew Rate 1 T/min lt SR lt 0.5 T/s? Central
Field As high as possible Temperature 0.3 Klt
Sample lt 300 K. Cryogenic Vacuum ?1e-5 torr
required for cryogenic insulation. Vibration Sam
ple and optical equipment must be vibration
isolated from the magnet housing. Bore 32 mm ?
film windows.
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FIRS BITTER CONCEPTS
FIRS Challenge Mid-plane region must include
scattering space (vacuum), structure (500 tons),
cooling water (120 l/s), current (20 kA),
insulation, seals, assembly/maintenance plan.
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FIRS POLY-HELIX
The poly-helix concept provides simple, compact
electrical, hydraulic, and structural circuits
for split magnets.
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FIRS POLY-HELIX
Preliminary Stress Plots (MPa) in Innermost
Polyhelix Coil
FIRS Challenge Mid-plane region must include
scattering space (vacuum), structure (500 tons),
cooling water (120 l/s), current (20 kA),
insulation, seals, assembly/maintenance plan.
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FIRS MAGNET ACTION ITEMS

• 1) CONCEPTUAL DESIGN PHASE.
• Florida-Bitter vs. Poly-Helix
• Resistive vs. Hybrid
• Send info to Users (Q1 05)
• Choose bore size. (User Input)
• Finalize requirements. (User Input)
• Schedule Budget
• Concept. Design Review (Q2 05)

• 2) PROTOTYPE PHASE
• Design insert for Cell 4
• Fabricate Test (Q4 05?)

• 3) USER MAGNET PHASE
• Design user magnet (2006?)
• Fabricate user magnet (2007?)

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CONICAL MAGNETS
Magnets with conical bores would facilitate
various photon and neutron scattering
experiments. Florida-Bitter magnet technology
appears to be particularly well suited to this
application. (Not Funded)
30 conical ½-angle
Conical Challenge Housing/structural design
User Input Needed.
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SERIES-CONNECTED HYBRID
Phase I (Conc. Eng. Des.) Funded 7/04 6/06
Connect a 20kA Resistive Magnet in series
with a Superconducting Outsert Magnet For
experiments requiring - high homogeneity
- high temporal stability - long times at
peak field
User Input Needed. Contact J. Miller or T. Cross
Engineering advantages Reduced field on SC
1/3 power of Res-Mag Fits standard cell
45-T Hybrid 32-mm bore 30 MW
Series Connected Hybrid 35 T, High
Homogeneity 40-mm bore 10 MW
35-T All-Resistive 32-mm bore 20 MW
(Possible future inserts)
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SCH FOR SCATTERING
SERIES CONNECTED HYBRIDS (Conical or Split) for
photon or neutron scattering at
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POWERED MAGNET CELLS
Six Resistive Magnets 1 Hybrid are currently
providing field to users. 5 Upgrades, 1
Series-Connected Hybrid and a Far-Infrared
Spectroscopy magnet are under development.
Magnet bores are 32 mm unless noted
otherwise. Items at top of cells exist, those at
bottom are under development.
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NHMFL 45 T Hybrid
Wed. Nov. 10, 256 pm Insert bus bars shorted to
housing resulting in insert power supply trip and
no quench or crowbar of the SC outsert. Wed.
1000 pm Insert coils removed, apparently okay.
Thurs. 400 pm Insert lower housing removed.
Prognosis 1 month to buy materials, machine
parts re-assemble
(File photo)
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Conductor/coil fabrication line at NHMFL
Payoff/tensioner
Cable insertion
Winder
Leak-check station
In-line butt-weld station
Shaping mill
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Layout of conductor/coilfabrication line for
Coil-A rebuild
Tube welding and leak test
Cable insertion
Tube shaping
Takeup/payoff
Work benches
Storage
Storage
Winding
VPI
Heat treatment
278 m2 with bridge crane
10 m
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50 mm SCHEDULE Installation April 05. Promised
to Users NSF Q205
Schedule dependent upon disk stamping, disk
machining, disk silver plating, modification of
housing heads, remake of bore tube, rework of
electrodes.
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32 mm SCHEDULE Promised to Users NSF Q305