27 August 2017 to 1 September 2017
RAI Congress Center, Amsterdam, The Netherlands
Europe/Amsterdam timezone

Transport properties of commercially available REBCO conductors at 4.2 K

31 Aug 2017, 13:45
1h 45m
Posters Area

Posters Area

Poster Presentation of 1h45m F4 - ReBCO Wires and Cables Thu-Af-Po4.08

Speaker

Mr Kazuki Norimoto (Sophia University)

Description

There is a strong demand for higher field magnets in the various field of science. The development of solenoids capable of generating high magnetic fields of 20–30 T has been ongoing in major high-field laboratories in the worldwide. In the field of high energy accelerator, a 20 T dipole magnet is listed as a candidate for the bending magnet of the Future Circular Collider and the proposed muon collider requires solenoids of 30–50 T. Such field strength exceeds the levels achievable by using low-temperature superconductors. Currently, only high-temperature superconductors have the potential to achieve such field levels. However, there have been limited data on the electrical transport properties of REBCO conductors in high field and at low-temperature. Therefore, as a first step to study the possibility of REBCO-based high-field magnets, we have started the critical current measurements of commercial REBCO conductors in perpendicular fields of up to 18 T at 4.2 K. To perform the measurements of full width conductors (4-mm-wide), we have developed U-shaped sample holders. In these holders, the rather long voltage taps distance of ~30 mm can be taken, and the current transfer length and heating at the current lead joints need not be considered. In this presentation, we will report the transport properties at 4.2 K for conductors from seven different manufacturers (AMSC Co., Fujikura Ltd., SuNAM Co., Ltd., SuperOx Japan LLC, SuperPower Inc., and SWCC Showa Cable Systems Co., Ltd.)

Submitters Country Japan

Primary author

Mr Kazuki Norimoto (Sophia University)

Co-authors

Prof. Kiyosumi Tsuchiya (High Energy Accelerator Research Organization, KEK) Dr Akihiro Kikuchi (National Institute for Material Science, NIMS) Mr Akio Terashima (High Energy Accelerator Research Organization, KEK) Dr Xudong Wang (High Energy Accelerator Research Organization, KEK) Mr Mio Uchida (Sophia University) Dr Shinji Fujita (Fujikra Ltd.)

Presentation Materials