Transcript Magnet design and optimization

Applied superconductivity group
L. García-Tabarés, F. Toral, I. Rodriguez
CIEMAT, I/2008
Outline

CIEMAT
 Applied Superconductivity Group
 On-going projects
 Future projects
Outline

CIEMAT
 Applied Superconductivity Group
 On-going projects
 Future projects
SOME FACTS ABOUT CIEMAT
Public Research Institution (OPI) dealing with Energy and
Environment pertaining to the Ministry of Science and
Education
Annual
budgeted expenses
about 80 million euros
65%
transferred from
the State
Human
Resources
Remaining revenues
from R&D activities
and technical services
1,400 workers
about half of which have university degrees
30% civil servants 70% contracted
4
CIEMAT RESEARCH CENTERS
CENER-CIEMAT
Center for Renewable
Energy Development
(CEDER)
NAVARRA
SORIA
MADRID
Moncloa Center
EXTREMADURA
ALMERÍA
Plataforma Solar
de Almería (PSA)
* Others under
construction
5
R&D ACTIVITIES AT CIEMAT
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Renewable Energies
Fusion by Magnetic Confinement
Radiation Protection and Radiation Dosimetry
Materials Behaviour in Power Plants
Radioactive Waste Management
Environmental Behaviour of pollutants
Molecular and Cellular Biology
Combustion and Gasification Technologies
Computing and Communications Technologies
Experimental High Energy Physics
 International collaborations at CERN, DESY, NASA,…
 Applied Superconductivity Laboratory CIEMAT-CEDEX
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CIEMAT HUMAN RESOURCES FOR ACCELERATORS
ACCELERATORS
GROUP
APPLIED
SUPERCONDUCTIVITY
GROUP
CREATION: 2006
CREATION : 1996 (CEDEX/CIEMAT)
PRESENT SIZE: 8 PEOPLE
PRESENT SIZE : 14 PEOPLE
OBJECTIVE 2010: 23 PEOPLE
OBJECTIVE 2010: 17 PEOPLE
FUTURE ASSIGNED ACTIVITIES
* Beam dynamics
* Machine design
* Radiofrequency
* High Vacuum
* Instrumentation
* Installation and Commissioning
ASSIGNED ACTIVITIES
* Design and fabrication of Superconducting systems
(Magnets included)
* Design and fabrication of Resistive Magnets
* Design and fabrication of Pulsed Magnets
* Other accelerator components
Outline

CIEMAT
 Applied Superconductivity Group
 On-going projects
 Future projects
Applied Superconductivity Group
 Aim:
Scientific and technical research on applied superconductivity.
 Structure:
 There is a common laboratory shared by two Institutes: CIEMAT-CEDEX
 CIEMAT contribution consists of 8 people while CEDEX one is 5.
 CIEMAT site is mainly devoted to calculation, design and fabrication, whereas
CEDEX one focuses on assembly and testing.
 The group has been working under this framework since 1996.
Capabilities
 Calculation:
 Electromagnetic
low frequency).

Mechanical
 Quench
devices).

analysis
(high
and
analysis.
modelling
(superconducting
Prototyping:
 Design and
tooling.
fabrication
follow-up
of
 Fabrication
follow-up
and
assembly
of electromechanical devices.


Coil
winding.
Testing:
 Superconductivity
Laboratory:
two
cryostats,
a
GM
cryocooler,
power
supplies up to 2000 A.
List of developments
 High Temperature Superconductors:
 Warm bore solenoid (gyrotron upgrade TJII)
 HTS current leads (LHC, TESLA500)
 Bearings (ACE2 Superconductor)
 Low Temperature Superconductors:
 SMES (AMAS500)
 Magnets for LHC: tuning quadrupole, 2 trim quadrupole, superferric octupole,
and tests of correctors (sextupoles, decapoles, octupoles).
 Magnet package for TESLA500 and XFEL.
 Design of the EFDA (European Fusion Development Agreement) dipole.
 Design of high field magnets for NED (Next European Dipole) program.
 Cryogenics (XFEL, AMS)
Outline
 CIEMAT
 Applied Superconductivity Group
 On-going projects
 Future projects
TESLA500
Calculation and detailed design of a combined superconducting prototype
magnet for TESLA500: a quadrupole and two dipoles. (2002-04)
Parameter
Quadrupole
Nominal current
Bore diameter
Number of turns
Bare wire
Insulated wire
Cu/Sc ratio
Main field
Magnetic length
First multipole**
Second multipole**
Third multipole**
2-D peak field
3-D peak field
Working point@2K
Self inductance
100
90
50x16
0.42x0.63
0.46x0.69
1.84
60
588
0.4348
35.845
1.056
3.20
3.62
49.5
2.35
Inner
dipole
40
114.56
111x1
0.42x0.63
0.46x0.69
1.84
0.140
588
-0.23
-146.32
-0.160
-15.5*
0.0332
Outer
dipole
40
118.02
114x1
0.42x0.63
0.46x0.69
1.84
0.144
588
1.34
-143.42
-0.175
-14.8*
0.0364
Units
A
mm
mm
mm
T/m - T
mm
unit
unit
unit
T
T
%
H
ILC
 The TESLA500 prototype magnet will be
tested in SLAC to carefully measure:
 The stability of the magnetic axis (should
be better than 5 microns according to ILC
requirements).
 The field quality at
(persistent currents effect).
low
currents
 An Expression of Interest have been sent to
the Global Design Effort group concerning the
engineering design of the main linac magnet.
XFEL contribution (I)
Design of a combined superferric magnet (2005).
Fabrication of four prototypes (starting in 2006).
COIL
Winding type
Coil inner diameter
Nominal current
Nominal gradient
Magnetic length
Number of turns
Wire diameter (bare/insulated)
Copper to superconductor ratio
RRR
Filament diameter
Twist pitch
Iron yoke length
Coil length
Stored magnetic energy at 50A
Self inductance at 50A
Integrated strength at 50A
Integrated b6 at 50A
Integrated b10 at 50A
Coil peak field
Working point on load line 4.2K
Saturation at 50 A (integrated)
QUAD
Superferric
94.4
50
35
169.6
646 (34x19)
0.4/0.438
1.35
>70
35
50
145
200.6
1462
1.17
5.976
1.87
-2.75
2.47
45
3.9
INNER
OUTER
DIPOLE
DIPOLE
COS-
COS-
83.6
88.5
50
50
0.04
0.04
203.7
205
36
37
0.7/1.03
1.8
<100
<20
25
140
230
230
0.96e-3
0.00815
1.07e-3
0.00820
1.5
1.6
9.0
10.1
mm
A
T/m
mm
mm
micron
mm
mm
mm
J
H
T--Tm
units
units
T
%
%
XFEL contribution (II)
Fabrication and test of the first prototype (2007)
fn ame  "HH _1 00 52 0 07 _0 94 9"
1.06
0.126
1.04
0.124
1.02
gdl/I
gdl/I/.1223
0.122
1
0.12
0.98
0.118
0.96
0.116
0.114
60
40
0 - 50
50 - 0
0 - -50
-50 - 0
0 - 50
20
0
I [A]
20
40
60
0.94
60
40
0 - 50
50 - 0
0 - -50
-50 - 0
0 - 50
20
0
I [A]
20
40
60
HTS magnet for a
gyrotron upgrade

Design
cryostat
2005)
and
fabrication
of
a
for a cryocooler (CIEMAT,

Fabrication
and
testing
coils (CIEMAT, 2005-06)

Design
of
a
HTS
solenoid
for
a
gyrotron
upgrade:
2T,
150
mm
aperture. (CIEMAT, 2007)
of
HTS
Next European Dipole
Phase I: characterization and fabrication of
high current density Nb3Sn cable, besides
conceptual studies on high field magnet
design.
q Contribution to the Working Group on
Magnet Design and Optimization.
Phase II (FP7): design and fabrication of
Nb3Sn corrector magnets for future particle
accelerators or upgrades.
Outline
 CIEMAT
 Applied Superconductivity Group
 On-going projects
 Future projects
Possible future contributions to
large facilities (I)
 XFEL:
• Superconducting magnets and power supplies
• Intersections
 LHC UPGRADE:
• NbTi corrector magnet package (in collaboration with Rutherford
Appleton Laboratory).
 IFMIF (International Fusion Materials Irradiation Facility):
• Magnets for DTL (not decided if superconducting or resistive yet)
Possible future contributions to
large facilities (II)
 FAIR:
• EoI on 10th December 2007: Superconducting magnets are our
preferred candidate to start with (as long as our accelerators group
has just been created).
 Super-FRS
superconducting
multiplets
(quadrupoles,
correctors, etc). A new facility would be needed for vertical
assembly of 6 meter long cryostats.
 NESR/RESR resistive magnets and other components can be
a later contribution once the accelerator group is settled and the
rings defined.
 In any case, the scope of both developments should be in
accordance with the financial contribution expressed by our
funding agency.
• A Super-FRS magnet prototype development could be started on
April 2008. It could be a type 3 quadrupole (0.8 m with octupole, PSP
2.4.2.2.3) or a sextupole (PSP 2.4.2.3.2).
Possible future contributions to
large facilities (III)
 FAIR:
• Proposed schedule for the quadrupole prototype. A preliminary
calculation was developed in St. Petersburg and a conceptual design
was done by Toshiba
2008
Q2 Q3 Q4
Calculation
review
Detailed
design
Tooling
design
Tooling
fabrication
Coil
fabrication
Laminations
fabrication
Assembly
Q1
2009
Q2 Q3
Q4
Q1
2010
Q2 Q3
Q4