1. FCC-related R&D in KEK and Japan

2. R&D Status Two projects on going (Founded by JST and AMED)
JST: Med Field HTS Mag. For Small Acc.; ~1MCHF/y * (5+5)y
AMED: Med Field HTS Mag. for Medical Acc.; ~1MCHF/y * 3y
Several Proposals to JSPS
JSPS: Advanced Conductor Development for High Field App.
Nb3Sn and HTS; ~3MCHF/y * 5y
JSPS: HTS High Field Magnet Development for Future Acc.
ReBCO cable; ~2MCHF overall 5y
Nb3Sn Development Efforts by Private Companies
KSL/JASTEC, SH Copper, and Furukawa

3. R&D Status Two projects on going (Founded by JST and AMED)
JST: Med Field HTS Mag. For Small Acc.; ~1MCHF/y * (5+5)y
AMED: Med Field HTS Mag. for Medical Acc.; ~1MCHF/y * 3y
Several Proposals to JSPS
JSPS: Advanced Conductor R&D for High Field App.
Nb3Sn and HTS; ~3MCHF/y * 5y
JSPS: HTS High Field Magnet Development for Future Acc.
ReBCO cable; ~2MCHF overall 5y
Nb3Sn Development Efforts by Private Companies
KSL/JASTEC, SH Copper, and Furukawa

4. Major projects in Japan for HTS accelerator magnets R&D
S-Innovation project
Funded by JST / MEXT
Kyoto U., Toshiba, KEK, KURRI, NIRS, JAEA
Fundamental technology R&D
A-MED (NIH like org.) project
Toshiba, Kyoto U., KEK
Dipole magnet for rotating gantry for carbon cancer therapy
Mitsubishi Electric, universities
Dipole magnet for synchrotron
N. Amamiya
2014
Model Magnet for FFAG (TOSHIBA)
Medium Field Applications for Small Accelerators
Superconducting Gantry (TOSHIBA)

5. R&D Status Two projects on going (Founded by JST and AMED)
JST: Med Field HTS Mag. For Small Acc.; ~1MCHF/y * (5+5)y
AMED: Med Field HTS Mag. for Medical Acc.; ~1MCHF/y * 3y
Several Proposals to JSPS
JSPS: Advanced Conductor R&D for High Field App.
Nb3Sn and HTS; ~3MCHF/y * 5y
JSPS: HTS High Field Magnet Development for Future Acc.
ReBCO cable; ~2MCHF overall 5y
Nb3Sn Development Efforts by Private Companies
KSL/JASTEC, SH Copper, and Furukawa

6. Super-electromagnetic Force Science -New Evolution in Superconductors-
Fusion
(DEMO)
Fusion (ITER)
High strength bundled superconducting cables
Academic approach by scientists with different fields
NbTi&Nb3Sn
requirement
Energy production
Science & Technology on
Super High Magnetic Field Superconducting magnet
Accelerator
(LHC)
Future Circular Collider
(FCC)
Control of
Large electromagnetic
force
requirement
High energy science
NbTi
requirement
Industries in Japan (Furukawa, Fujikura, Sumitomo)
High-field Magnet
Superconductor market
FCC
2000t Nb3Sn
500t 　HTS
Super high field
High field science
NbTi, Nb3Sn, HTS

7. Applications REBa2Cu3Oy tapes Bi2Sr2Ca2Cu3Oy tapes Nb3Sn wires Ａ01 Ａ02
Ａ03
Magnet
technology
Strands
Cable
Applications
Nagoya-U, KyuTec, ISTEC, Kyusyu-U, NIMS, Aoyama-U
Kyoto-U, NIFS, Tohoku-U
KEK, NIMS, Tohoku-U, NIFS
High-Jc
Solid states chemistry
Flux pinning
Nano structure
Crystal growth
Scribing/cutting
REBa2Cu3Oy
tapes
Cabling
Electromagnetic effects
Current distribution
Stability
Stress/strain effects
Etc
Design
Winding
Impregnation
Electromagnetic stress
Shielding current
Stability
Protection
Cryogenics
Quench detection
Etc
High-Jc
Solid states chemistry
High pressure oxygen
Chemical doping
Flux pinning
Rolling
Bi2Sr2Ca2Cu3Oy
tapes
High-Jc
Metallurgy
Diffusion process
Internal-Sn process
High-Sn content in Bronze
Stoichiometry
Electromagnetic effects
Current distribution
Stability
Stress/strain effects
Etc
Nb3Sn
wires
drawing
Fujikura, Furukawa, Sumitomo
5mm
Advanced SC wires
Nb3Al, MgB2, Fe-SC

8. Key Members (tentative)
A01: Strands
Y. Yoshida (Nagoya-U): RE123 Crystal growth, APC
K. Matsumoto (KyuTech): Flux pinning, APC
T. Izumi (ISTEC-SRL): RE123 long tape, Scribing
H. Kitaguchi (NIMS): Ag/Bi2223, Nb3Al, Advanced Nb3Sn
A02：Cables
N. Amemiya (kyoto-U): Electromagnetic behaviors, design of HTS cable
H. Oguro (Tohoku-U) : LTS cables
N. Yanagi (NIFS): HTS stacked cables, Large current evaluation
A03：Magnet technology
S. Awaji(Tohoku-U), G. Nishijima (NIMS): High field magnets
T. Ogitsu (KEK): Accelerator magnet
?? (JAEA or NIFS): Fusion magnet
Industries
Fujikura, Furukawa, Sumitomo Electric Industries

9. R&D Status Two projects on going (Founded by JST and AMED)
JST: Med Field HTS Mag. For Small Acc.; ~1MCHF/y * (5+5)y
AMED: Med Field HTS Mag. for Medical Acc.; ~1MCHF/y * 3y
Several Proposals to JSPS
JSPS: Advanced Conductor R&D for High Field App.
Nb3Sn and HTS; ~3MCHF/y * 5y
JSPS: HTS High Field Magnet Development for Future Acc.
ReBCO cable; ~2MCHF overall 5y
Nb3Sn Development Efforts by Private Companies
KSL/JASTEC, SH Copper, and Furukawa

10. HTS High Field Magnet Development for Future Accelerator
HTS Coils with ReBCO Cable
KEK, Kyoto-Univ., Japan
Robinson Inst. NZ
Sub-scale race track coils
Field ~ 15 T
Eventually small cosθ coil
Tested in D1

11. R&D Status Two projects on going (Founded by JST and AMED)
JST: Med Field HTS Mag. For Small Acc.; ~1MCHF/y * (5+5)y
AMED: Med Field HTS Mag. for Medical Acc.; ~1MCHF/y * 3y
Several Proposals to JSPS
JSPS: Advanced Conductor R&D for High Field App.
Nb3Sn and HTS; ~3MCHF/y * 5y
JSPS: HTS High Field Magnet Development for Future Acc.
ReBCO cable; ~2MCHF overall 5y
Nb3Sn Development Efforts by Private Companies
KSL/JASTEC, SH Copper, and Furukawa

12. KSL/JASTEC－Distributed Tin Nb3Sn Wire (DT wire)
Confidential
KSL/JASTEC－Distributed Tin Nb3Sn Wire (DT wire)
Development target :
High Ic wire at high magnetic field for NMR magnet
Nb barrier
Cu/Nb
Multi fimament
Sn in Cu tube
RRR：150～170
Filament diameter : 3μm
(design value)

13. Internal Tin Nb3Sn wire in SH Copper
For high field magnet application, since 2009, we started to develop new type internal tin wire
200mm
Internal Tin
Sn fil. size ~ Nb fil. size. ~ 30μm
Simple structure ⇒Low Cost
No degradation by by cabling
For Ic and RRR

14. Plan & Action Who: In-house development team
and under collaboration with relevant institutes
How: In-house development
Desk research (~Oct 2015)
-> In-house authorization (~Dec 2015)
-> Experiment & Trial production (Jan 2016~)
Furukawa has launched the desk research to come up with breakthrough idea for potential process.
All Rights Reserved, Copyright© FURUKAWA ELECTRIC CO., LTD. 2015

15. Summary for Companies R&D
2 manufacturers use DT (or equivalent)
Demerit:
Lower non cu Jc (for now)
Merit
Less filament coupling (smaller Eff. Fil. Size)
Better RRR (better stability)
Less degradation by cabling (Jc and RRR)
Furukawa
Bronze >> Technology Search

16. Possibility to enhance Nb3Sn R&D
Add extra budget to private companies
Speed up their effort
FCC specific R&D
200 kCHF/y max * ~5y
Budget Source (executed by KEK)
KEK; new budget (combine with HL-LHC?)
JSPS; Advanced Conductor R&D proposal
CERN; commissioned or collaborative research?

17. Possibility to enhance Nb3Sn R&D
Add extra budget to private companies
Speed up their effort
FCC specific R&D
200 kCHF/y max * ~5y
Budget Source (executed by KEK)
KEK; new budget (combine with HL-LHC?)
JSPS; Advanced Conductor R&D proposal
CERN; commissioned or collaborative research?
New addendum?

18. Summary Two projects on going (Founded by JST and AMED)
Med Field HTS Magnet For Small Accelerator
Several Proposals to JSPS
JSPS: Advanced Conductor Development for High Field Applications (including FCC)
JSPS: HTS High Field Magnet Development for Future Acc.
Nb3Sn Development Efforts by Private Companies
KSL/JASTEC, SH Copper, and Furukawa
Possibility to enhance their efforts
Resources (man power and budget)
KEK resources are very limited
Try to Construct All Japan Efforts
We appreciate help from CERN