cern · .,-.'1'.0 .,-. ' 0 5 10 15 20 1980 1990 2000 2010 2020 2030 sc accelerator...
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0
5
10
15
20
1980 1990 2000 2010 2020 2030
SC AcceleratorSC Low-beta InsertionPlan
Ope
ratio
n Fi
eld
(T)
Year
LHC 11T DS Dipole
HL-LHC Low-bata Quads.
HE-LHC
LHC 7TeV
LHC 3.5TeVRHIC
KEKB
SSC (Cancel)
HERATRISTAN
LEPTevatron
ISR
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– – – – μ μ
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–
–
YBCO
CeO2
Gd2Zr2O7
HastelloyNi alloy substrate
Middle layer (buffer)
ReBCO
Ag/Cu
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0.5
0.6
0.7
0.8
0.9
1
1.1
I c/I c
0
Applied strain (%)
εirr
Δ(Ic/Ic0)>1%(b)
77 K
0 0.2 0.4 0.6 0.8 1.21
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Ongoing
Completed
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Technical objective: develop technology base for the Long Quadrupole • Evaluation of conductor and cable performance • Development and optimization of coil fabrication procedures • Comparison of mechanical design concepts & support structures
Magnet parameters: • 1 m length, 90 mm aperture, cos2θ coil geometry
Goal: predictable and reproducible performance above 200 T/m (10-11T)
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Nb
Ta
Nb or Ta
0
500
1000
1500
2000
2500
3000
6 8 10 12 14 16 18
Non
-Cu
Jc (A
/mm
2 )
B (T)
K1
K3
K4
4.2 K
K2
Nb3Sn(OST-RRP)
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10
20
00 200 400
Operating Current (A)
Mag
netic
Fie
ld (T
)
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1
2
3
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~55 mm
~64 mm
½ midsert insert
Conductor: High strength 2G HTS (YBCO)from SuperPower with ~45 μm Copper.
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