FCC-related R&D in KEK and Japan

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

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

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 FCC@ASC Model Magnet for FFAG (TOSHIBA) Medium Field Applications for Small Accelerators Superconducting Gantry (TOSHIBA)

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

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

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

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

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

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

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

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)

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

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

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

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?

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?

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