Superconducting Combined Function Magnet System for

Microsoft PowerPoint - CERN-Saclay-RAL_compressed [Compatibility Mode]Beam LineBeam Line
Toru Ogitsu, Yasuhiro Makida, KenToru Ogitsu, Yasuhiro Makida, Ken--ichi Sasaki, ichi Sasaki, Toru Ogitsu, Yasuhiro Makida, KenToru Ogitsu, Yasuhiro Makida, Ken--ichi Sasaki, ichi Sasaki,
TatsushiTatsushi Nakamoto, Hirokatsu Ohata, NobuhiroNakamoto, Hirokatsu Ohata, Nobuhiro Kimura, Kimura,
TakahiroTakahiro Okamura, Akio Terashima, YasuoOkamura, Akio Terashima, Yasuo Ajima, Ajima,
NorioNorio Higashi, Takayuki Tomaru, MasahisHigashi, Takayuki Tomaru, Masahis Iida, Iida,
KenichiKenichi Tanaka, OsamuTanaka, Osamu Araoka, ShojiAraoka, Shoji Suzuki, Akira Suzuki, Akira
Yamamoto, TakashiYamamoto, Takashi Kobayashi, AtsukoKobayashi, Atsuko Ichikawa, Ichikawa,
TakeshiTakeshi Nakadaira, KenNakadaira, Ken Sakashita, TakuyaSakashita, Takuya Hasegawa, Hasegawa,
YoshiakiYoshiaki Fujii, HidekazuFujii, Hidekazu KakunoKakuno
TokaiTokai--toto--Kamioka (T2K) long baseline neutrino Kamioka (T2K) long baseline neutrino oscillation experimentoscillation experiment
2
GoalGoal Discover Discover ννννννννe app.e app. νµνµ disapp. meas.disapp. meas.
Intense narrow spectrum Intense narrow spectrum νµνµ beam beam from Jfrom J--PARC MRPARC MR OffOff--axis w/ 2~2.5deg axis w/ 2~2.5deg
Tuned at osci. max.Tuned at osci. max.
SK: largest, high PID performanceSK: largest, high PID performance
LHC&JLHC&J--PARC Neutrino SC SystemPARC Neutrino SC System
ComparisonComparison Size 27km vs 150mSize 27km vs 150m
Number of Magnets ~5000? Vs ~30Number of Magnets ~5000? Vs ~30
Inductance and Stored EnergyInductance and Stored Energy
LHCLHC sectorsector: 15.1H, 1.2GJ: 15.1H, 1.2GJ
JJ--PARC: 0.4H, 10MJ(50GeV), 5MJ(30GeV)PARC: 0.4H, 10MJ(50GeV), 5MJ(30GeV) JJ--PARC: 0.4H, 10MJ(50GeV), 5MJ(30GeV)PARC: 0.4H, 10MJ(50GeV), 5MJ(30GeV)
Helium InventoryHelium Inventory
LHC(overallLHC(overall: 56: 56NmNm33
JJ--PARC: 4000NmPARC: 4000Nm33
Neutrino Beams
(to Kamioka)
Bird’s eye photo in January of 2008 JFY2009 Beams
Hadron Exp. Facility
UA1 magnet
Decay volume
Beam dump
[email protected]@Prep.
[email protected]@FF.
(1W/m @ ARC)(1W/m @ ARC)
Beam Monitors Intensity (CT) 5 Beam position (ESM) 21 Profile (SSEM) 19 Profile (OTR@target) 1 Beam loss monitor 50
11 NC mags
10 NC mags
But they are expensive and also takes time… I don’t like it…
We need SUPERCONDUCTING MAGNET system to bend 50 GeV proton
ARC SectionARC Section
Final Focusing SectionFinal Focusing Section
28 SC combined func magnets (SCFM) (+3 SC corr mags from BNL)
10 NC mags
6
bend 50 GeV proton with 100m R for future multi-MW option.
Strong Request on Cost and Schedule Strong Request on Cost and Schedule 20D+20Q > 28 SCFM20D+20Q > 28 SCFM
Optimize Cost & Schedule Optimize Cost & Schedule
Combined Function Combined Function MagnetMagnet ConceptConcept
Current
Distribution
RHIC DX +
Aluminum Coller
L-R Asymmetry Coil
Iron Yoke
Lock Key
Mech. Design:Mech. Design:
S.C. Cable for LHCS.C. Cable for LHC--DipoleDipole--Outer (strand: LHC leftover) Outer (strand: LHC leftover)
w/ MQXA Insulationw/ MQXA Insulation
SpecificationSpecification
Tmax:Tmax: < < 55..00KK
Dipole Field:Dipole Field: 22..59 59 TT
Quad. Field:Quad. Field: 1818..6 6 T/mT/m
Field Error:Field Error: < < 1010^--33
Op. Current:Op. Current: 7345 A7345 A
Op. Margin:Op. Margin: 72%72%
Inductance:Inductance: 14.3 mH14.3 mH
# of Magnet:# of Magnet: 2828
SC Cable:SC Cable: NbTi/Cu NbTi/Cu
Rutherford Type CableRutherford Type Cable
for LHC Dipole Outerfor LHC Dipole Outer--LL
3D-SS 3D-LE 3D-RE 3D-Integral
EnoughEnough
• • Peak field at conductor in straight section is Peak field at conductor in straight section is 44..6 6 T at T at 50 50 GeV.GeV.
• • Load line ratios at Load line ratios at 5 5 K for K for 40 40 & & 50 50 GeV are GeV are 58 58 % & % & 72 72 %, respectively.%, respectively.
• • Field quality within a tolerance of Field quality within a tolerance of 1010--33 is acceptable.is acceptable.
Development of Development of Prototype Superconducting Prototype Superconducting Combined Function MagnetCombined Function Magnet
@ KEK@ KEK Development of LeftDevelopment of Left--Right Asymmetry Single Layer CoilRight Asymmetry Single Layer Coil
Coil DesignCoil Design
Coil WindingCoil Winding
Plastic CollarPlastic Collar
Development of Magnet Structure and AssemblyDevelopment of Magnet Structure and Assembly
Yoke StackYoke Stack
• Off• Off--center magnetic polecenter magnetic pole LeftLeft--right asymmetryright asymmetry
• Different thickness of wedges for both sides• Different thickness of wedges for both sides
Asymmetric mech. propertyAsymmetric mech. property
• Cured with wedges and the pole spacer• Cured with wedges and the pole spacer
No collar insertion No collar insertion
Circular key
For excitation : ~30 MPaFor excitation : ~30 MPa
For cool down : ~20 MPaFor cool down : ~20 MPa 50 MPa required50 MPa required
PrePre--stress of 80 MPa given by Yoking Processstress of 80 MPa given by Yoking Process
Coil overCoil over--size of 0.7 mm & 1.0 mmsize of 0.7 mm & 1.0 mm
0.7 mm 1.0 mmCoil Over-size
GFRP Wedges and SpacersGFRP Wedges and Spacers
•• End spacers: G10 (CNC file)End spacers: G10 (CNC file)
•• Ramp box: G10Ramp box: G10 •• Wedges: G11Wedges: G11 Size ToleranceSize Tolerance
Target: < 0.05 mmTarget: < 0.05 mm
Actual: 0.1 mm Actual: 0.1 mm
*Coil Pre*Coil Pre--stress tolerance after yoking:stress tolerance after yoking:
50 MPa < Coil Prestress < 100 MPa50 MPa < Coil Prestress < 100 MPa
Verified by Verified by practice coil practice coil
windingwinding and and mechanical mechanical
short model studyshort model study
Coil Winding ToolCoil Winding Tool Cable TensionerCable Tensioner
MandrelMandrel
Turning TableTurning TableTurning TableTurning Table
Alignment of pole Alignment of pole
spacer by keyspacer by key
Insertion of Insertion of
Coil Winding for Prototype MagnetCoil Winding for Prototype Magnet
•Coil with pre•Coil with pre--pregnant Epoxy pregnant Epoxy
resin cured at 400K for 5 hours.resin cured at 400K for 5 hours.
• Asymmetric coil oversize • Asymmetric coil oversize
determined by 2 sets of shims.determined by 2 sets of shims.
Oversize@Oversize@Oversize@Oversize@ LowLowLowLow----FieldFieldFieldField
0.7 mm0.7 mm0.7 mm0.7 mm
Shim 1 mm
prototypeprototype
0.8
1
1.2
Low Field Side@Top Coil High Field Side@Top Coil Low Field Side@Top Coil#2 High Field Side@Top Coil#2 Low Field Side@Bottom Coil High Field Side@Bottom Coil
Coil Size MeasurementCoil Size Measurement
Strain gages on the press-bars
Coil size vs. StressCoil size vs. Stress Shim 1 mm
Shim
0
0.2
0.4
0.6
Median plane
Cured bottom coil on the mandrel. Several Cured bottom coil on the mandrel. Several
sets of strain gauges are installed on the sets of strain gauges are installed on the
presspress--bars in both sides to measure coil bars in both sides to measure coil
stress during the coil size measurement.stress during the coil size measurement.
0.8
1
1.2
Coil size vs. StressCoil size vs. Stress Shim 0.5 mm
Shim
0
0.2
0.4
0.6
Median plane
0.8
1
1.2
Coil size vs. StressCoil size vs. Stress
0 20 40 60 80 100 -0.2
0
0.2
0.4
0.6
Expected preExpected pre--stress of 60stress of 60--80 MPa 80 MPa
after magnet assembly is similar to after magnet assembly is similar to
the design value of 80 MPa. the design value of 80 MPa.
GlassGlass--reinforcedreinforced PhenolicPhenolic ThermosetsThermosets
&&
Size control is very important!!Size control is very important!!
R&D to search the most appropriate R&D to search the most appropriate
condition needs 18 months.condition needs 18 months.
Molding jig was designed with taking Molding jig was designed with taking
into account the consistent into account the consistent
deformation. deformation.
• Std. Deviation: ~50 • Std. Deviation: ~50 µµµµµµµµmm
GlassGlass--reinforcedreinforced PhenolicPhenolic ThermosetsThermosets
Rin=Rin=102102 mm,mm, t=t=2020 mm,mm, L=L= 100100 mmmm
*PM*PM96409640 suppliedsupplied byby SumitomoSumitomo Bakelite,Bakelite,
andand fabricatedfabricated byby ArisawaArisawa
@ KEK@ KEK Development of LeftDevelopment of Left--Right Asymmetry Single Layer CoilRight Asymmetry Single Layer Coil
Coil DesignCoil Design
GFRP Wedges & SpacersGFRP Wedges & Spacers GFRP Wedges & SpacersGFRP Wedges & Spacers
Coil WindingCoil Winding
Development of Magnet Structure and AssemblyDevelopment of Magnet Structure and Assembly
YokingYoking
Top Yoke InstallationTop Yoke Installation
Top Collar InstallationTop Collar Installation
Top lead Collar InstallationTop lead Collar Installation
Top Yoke Installation CompleteTop Yoke Installation Complete
YokingYoking --PressPress-- Press Bar InstallationPress Bar Installation
0
10
20
30
40
50
60
70
C a p . G
measurementmeasurement
Top Hat Installation Top Hat Installation 2300 2300 ton oil press system ton oil press system
Yoking Yoking --KeyingKeying--
Key InsertionKey Insertion
Key pushingKey pushing CompleteComplete
Shell WeldingShell Welding Longitudinal shell welding by a set of two Longitudinal shell welding by a set of two
automated welding machines.automated welding machines.
Final AssemblyFinal Assembly
EndEnd--ring weldingring welding
Leads connection by soldering.Leads connection by soldering.
Excitation Test of the Excitation Test of the 11st Prototypest Prototype
Installation into cryostat,
IIopop = 7345 A @ 50 GeV (and I= 7345 A @ 50 GeV (and Imaxmax = 7,700 A) reached with no quench, on March 4, 2005 = 7,700 A) reached with no quench, on March 4, 2005
Measurement Computation
B3 (T•m) -220.6*10-4 -293.6*10-4
B4 (T•m) -5.9*10-4 -20.1*10-4
B5 (T•m) -51.9*10-4 -30.6*10-4
B (T•m) -75.2*10-4 -62.8 *10-4
Participating members
Record of Record of
Field Measurement Result
Mass production Mass production
Mitsubishi ElectricMitsubishi Electric
25
30
35
Magnet
Yoke sizeYoke size
Shell sizeShell size
Cold Test at KEKCold Test at KEK
Presented by OkamuraPresented by Okamura (Wednesday Poster)(Wednesday Poster)
0
5
10
15
20
N u
m b
er P
ro d
u ce
100
110
120
70
80
90
100
P re
st re
Influence to Field Quality by Coil Prestress
Warm Field MeasurementWarm Field Measurement
-0.00119
-0.001185
-0.00118
-0.001175
-0.00117
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31
B1
B1
-0.000015
-0.00001
-5E-06
-2E-20
5E-06
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31
A1
A1
-2E-07
3E-07
8E-07
A2
0.000428
0.0004285
0.000429
B2
-1.2E-06
-7E-07
-2E-07
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31
A2
0.0004265
0.000427
0.0004275
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31
B2
0.547
0.548
0.549
0.55
0.551
0.552
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31
ang
ang
Common baseline: LHC cryostat: Reduce Cost and RiskCommon baseline: LHC cryostat: Reduce Cost and Risk
Common Parts Common Parts advantage of LHC mass productionadvantage of LHC mass production
( Production under CERN criteria )
32
Influence of Neutron to Cold Influence of Neutron to Cold
DiodeDiode
by D. Hagedornby D. Hagedorn
Change Forward Change Forward
1
2
3
4
5
6
Fluence [n/cm 2 ]
characteristics
To Spectrum Equivalent Dose [Gy] Using LHC Arc Quad Using LHC Arc Quad
AssemblyAssembly
100
200
300
400
500
600
Tw-limit
Direct Winding on Copper Bobbinn
Cold test for Quench Performance
Warm MFM for Integral Field Quality
Parameter Average Value Std. Dev.
B1 Integral 2.34 Tm/kA 22.4•10-4 Tm/kA
A1 Integral 2.32 Tm/kA 32.3•10-4 Tm/kA
B1-A1 angle -1.4 mrad 2.2 mrad
Refrigeration SystemRefrigeration System
CommissioningCommissioning
Started in End of Started in End of Dec 2008Dec 2008
Refrigerator TestRefrigerator Test & Magnet & Magnet
Cool DownCool Down
300
Refrigeration Refrigeration
Power ~ 1.5kWPower ~ 1.5kW
Cool Down Cool Down Magnet By Magnet By about 10 daysabout 10 days
0
50
100
150
200
250
300
Liq. level
Ref. Outlet
Ref. Inlet
3rd cryo
7th cryo
T em
p er
at u
Pressure DropPressure Drop
----steady state mode (230 g/sec ~ 330 g/sec)steady state mode (230 g/sec ~ 330 g/sec)----
Magnet-supply ReturnMagnet-Return
4
TRT-
Supply
TRT-
Return
3.5
3.5
Pressures at Cernox sensors can be obtained from above figure.
Wall Friction Coefficient, λ, is treated as adjustable parameter.
Heat Heat LoadLoad
4.50004.60004.70004.80004.90005.00005.10005.2000
0 20 40 60 80 100 120 140Position [m ]Temperature (TCX-MD) [K]
0L/m in 50L/m in 25L/m in 50L/m in 69.9 L/m in
Position [m ] Magnet String
140 W Transfer Line
50 W Current Lead
60 W @ 0 flow 0 W @ 70 L/min 100 L/min @ 4kA
0.050.0100.0150.0200.0250.0300.0350.0
0 20 40 60 80 100C L M ass Flow Rate (L/m in) Heat Load (W)
Total Heat Load 14-C C FM sSensible Heat Transfer (W ) Total Heat Load (with SHe pum p)
Quench Protection TestQuench Protection Test
MSS (Magnet Safety System)
Heater Induced QuenchHeater Induced Quench
Quench RecoveryQuench Recovery
• Quench Detectortrigger
4000
4500
5000
9
10
SC-Supply
Unit5-Supply
MD.IA_TCX701MD
Cool Down after QuenchCool Down after Quench Quench Test at 4400A (30GeV nominal)Quench Test at 4400A (30GeV nominal)
Normal case (4 magnets) : ~2 hour to recoverNormal case (4 magnets) : ~2 hour to recover
Extraordinary case (all magnets) : ~6 hour to recoverExtraordinary case (all magnets) : ~6 hour to recover
Quench!
No false quench detection by system shut down
0
500
1000
1500
2000
2500
3000
3500
4000
4
5
6
7
8
10 20 30 40 50 60 70 80 90 100
P /S
T2K beamline started operation!T2K beamline started operation! FIRST SHOT after turning on SC magnets at 19:09, Apr.23, 2009
Muon Monitor Signal Behind 5GeV equiv material (dump)
Beam profile monitor signal
Silicon
Scintillator
TT22K beamline started operation!K beamline started operation! After ~10 shots for tuning, proton beam hit around target center
MR intensity
Muon monitor signal
Muon monitor profile
Beam induced quench eventuallyBeam induced quench eventually
S S
E M
1 0
S S
E M
1 1
S S
E M
1 2
S S
E M
1 3
-20
-10
0
10
20
30
40
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
SC 4436 A
SC 4406 A
SC 4376 A
SC 4360 A
SC 4350 A
SC 4320 A
SC 4280 A
SC 4240 A
SC 4200 A
SC 4160 A
SC Part
-5
-4
-3
-2
-1
0
1
2
3
4
5
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
SC 4436 A
SC 4406 A
SC 4376 A
SC 4360 A
SC 4350 A
SC 4320 A
SC 4280 A
SC 4240 A
SC 4200 A
SC 4160 A
SC Part
0
1
2
3
4
5
6
7
8
9
10
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
SC 4436 A
SC 4406 A
SC 4376 A
SC 4360 A
SC 4350 A
SC 4320 A
SC 4280 A
SC 4240 A
SC 4200 A
SC 4160 A
0
1
1
2
2
3
3
4
4
5
5
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
SC 4436 A
SC 4406 A
SC 4376 A
SC 4360 A
SC 4350 A
SC 4320 A
SC 4280 A
SC 4240 A
SC 4200 A
SC 4160 A
SC Part
Beam Induced quenchBeam Induced quench Partial beam loss observed at 4200 APartial beam loss observed at 4200 A
At around SCR2~SCR4At around SCR2~SCR4
Full beam loss observed at 4160 AFull beam loss observed at 4160 A
Beam loss in between SCR2 ~ SCR4Beam loss in between SCR2 ~ SCR4
Quench at SCR3FQuench at SCR3F
No damage observedNo damage observed
ConclusionConclusion A SCFM with Single Layer Coil Winding is DevelopedA SCFM with Single Layer Coil Winding is Developed
Good Cost & Time Saving with Optimum ConditionGood Cost & Time Saving with Optimum Condition
Half Cell = one SCFM; Dipole > QuadrupoleHalf Cell = one SCFM; Dipole > Quadrupole
Draw backDraw back
D/Q ratio fixedD/Q ratio fixed It appears to be OKIt appears to be OK
International CollaborationInternational Collaboration
Construction Completed on ScheduleConstruction Completed on Schedule Construction Completed on ScheduleConstruction Completed on Schedule
Commissioning on goingCommissioning on going No major problem with hardware commissioningNo major problem with hardware commissioning
Minor problem associate with corrector current leadMinor problem associate with corrector current lead scheduled to be fixed in this summerscheduled to be fixed in this summer
Beam Commissioning went smoothlyBeam Commissioning went smoothly
Beam went through SC arc with the first attemptBeam went through SC arc with the first attempt
Beam behaved as expected (almost)Beam behaved as expected (almost)
Beam induced quench > quench protection works OKBeam induced quench > quench protection works OK
Application of SCFM 1Application of SCFM 1 Good Cost & Time Saving Good Cost & Time Saving
with Optimum Conditionwith Optimum Condition Half Cell = one SCFMHalf Cell = one SCFM
Dipole > QuadrupoleDipole > Quadrupole
For Beam LineFor Beam Line Already good enough?Already good enough?
So far so good.So far so good.
For Accelerator RingFor Accelerator Ring
Q D D D
SCFM SCFM SCFM
For Accelerator RingFor Accelerator Ring Needs more study on Needs more study on
field qualityfield quality
Special AcceleratorSpecial Accelerator Muon Acceleration FFAG?Muon Acceleration FFAG?
Show Off
SCFM
Application of SCFM 2Application of SCFM 2 Good Cost & Time Saving Good Cost & Time Saving
with Optimum Conditionwith Optimum Condition Half Cell = one SCFMHalf Cell = one SCFM
So far so goodSo far so good
For Accelerator RingFor Accelerator Ring
Dipole >> Quadrupole For Accelerator RingFor Accelerator Ring
Needs more study on Needs more study on
Special AcceleratorSpecial Accelerator Muon Acceleration FFAG?Muon Acceleration FFAG? Complexity
Simplicit
y
Dipole << Quadrupole
Application of SCFM 3Application of SCFM 3 A SCFM with Single Layer A SCFM with Single Layer
Coil Winding is DevelopedCoil Winding is Developed
Good Cost & Time Saving Good Cost & Time Saving with Optimum Conditionwith Optimum Condition Half Cell = one SCFMHalf Cell = one SCFM
80mm
R500mm
Aluminum Coller
So far so goodSo far so good
For Accelerator RingFor Accelerator Ring Needs more study on Needs more study on
Neutrino production Neutrino production magnets show good magnets show good reproducibility reproducibility
= there are some hope= there are some hope
Special AcceleratorSpecial Accelerator Muon Acceleration FFAG?Muon Acceleration FFAG?
Risk
TaiyoTaiyo--Nissan (Linde)Nissan (Linde)
JAEAJAEA TaiyoTaiyo--Nissan (Linde)Nissan (Linde) JECC TorishaJECC Torisha Hayakawa RubberHayakawa Rubber REPICREPIC KANEKAKANEKA BAYARDS (Holland)BAYARDS (Holland)BAYARDS (Holland)BAYARDS (Holland)BAYARDS (Holland)BAYARDS (Holland)BAYARDS (Holland)BAYARDS (Holland) FCM (spain)FCM (spain) etc.etc.
JAEAJAEA JJ--PARC CenterPARC Center Takasaki Advanced Radiation Research Takasaki Advanced Radiation Research
CenterCenter BNLBNL CERNCERN SaclaySaclay Criticism
Appreciation
AcknowledgmentAcknowledgment KEKKEK
JAEAJAEA JFEJFE TaiyoTaiyo--Nissan (Linde)Nissan (Linde) JECC TorishaJECC Torisha Hayakawa RubberHayakawa Rubber REPICREPIC KANEKAKANEKA BAYARDS (Holland)BAYARDS (Holland)BAYARDS (Holland)BAYARDS (Holland)BAYARDS (Holland)BAYARDS (Holland)BAYARDS (Holland)BAYARDS (Holland) FCM (spain)FCM (spain) etc.etc.
CenterCenter BNLBNL CERNCERN
Lyn Evans, Philip Bryant, Thomas Taylor, Lyn Evans, Philip Bryant, Thomas Taylor, Lloyd Ralph Williams, Olivier Denis, Lloyd Ralph Williams, Olivier Denis, DietrichDietrich HagedornHagedornAlain Gharib, Alain Gharib, BlazejBlazej SkoczenSkoczen
SaclaySaclay
AcknowledgmentAcknowledgment KEKKEK
JAEAJAEA JFEJFE TaiyoTaiyo--Nissan (Linde)Nissan (Linde) JECC TorishaJECC Torisha Hayakawa RubberHayakawa Rubber REPICREPIC KANEKAKANEKA BAYARDS (Holland)BAYARDS (Holland)BAYARDS (Holland)BAYARDS (Holland)BAYARDS (Holland)BAYARDS (Holland)BAYARDS (Holland)BAYARDS (Holland) FCM (spain)FCM (spain) etc.etc.
CenterCenter BNLBNL CERNCERN SaclaySaclay
JeanJean--Paul Charrier, Thierry Boussuge, Paul Charrier, Thierry Boussuge, Andre Bouty, Andre Bouty, JeanJean--François Gournay,François Gournay, Chantal Meuris, Chantal Meuris, Frédéric MoliniéFrédéric Molinié
JFY 2001JFY 200110 Cell FODO10 Cell FODO 20 Dipole + 20 Quads = 40 20 Dipole + 20 Quads = 40
MagnetsMagnets
Quadrupole: 36T/m*0.9mQuadrupole: 36T/m*0.9mIchikawa w/ help DoornbosIchikawa w/ help Doornbos
Optics with 14 DoubletsOptics with 14 Doublets
beambeam
Arc
Section
Hor.
Vert.

w/ help Doornbos, Noumi, Oide
Arc Section OpticsArc Section Optics 14 doublets; 28 SCFM14 doublets; 28 SCFM
Optimized Collimator in Prep. Sec.Optimized Collimator in Prep. Sec. Minimize risk to Arc SectionMinimize risk to Arc Section
SDXSFX Beam Direction

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Superconducting Combined Function Magnet System for