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Your search keyword '"Kawashima, S."' showing total 7 results
Start Over Author "Kawashima, S." Journal ieee transactions on applied superconductivity
7 results on '"Kawashima, S."'

3. Influence of Axial Strain and Transverse Compressive Load on Critical Current of Nb3Sn Wires for the FCC

Author

Nakamoto, M., Sugano, M., Dhakarwal, M., Ogitsu, T., Nishijima, G., Awaji, S., Kawashima, S., Hopkins, S. C., and Ballarino, A.

Abstract

Nb3Sn superconducting wires are under consideration for producing high field accelerator magnets for the proposed Future Circular Collider (FCC) due to their high critical field. R&D studies are ongoing worldwide with a target non-Cu critical current density (Jc) of 1500 A/mm2 at 4.2 K, 16 T. As an accomplishment of this R&D, one of the conductor manufacturers, JASTEC, has developed Nb3Sn wires with non-Cu Jc higher than 1100 A/mm2 at 16 T, 4.2 K by a distributed-tin (DT) method. In high field Nb3Sn magnets, degradation of performance has been frequently reported due to the brittleness of Nb3Sn and the high electromagnetic force. To realize more robust Nb3Sn accelerator magnets, electro-mechanical properties of the conductors should be deeply understood. In this study, the variation of the critical current with mechanical loading is evaluated for a DT Nb3Sn wire in two configurations, i.e., under axial strain and under transverse compression.

Published
2023
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5. Development and performance results of 5 MVA SMES for bridging instantaneous voltage dips

Author

Nagaya, S., Kondo, M., Shikimachi, K., Hanai, S., Ioka, S., Kawashima, S., Inagaki, J., Nakabayashi, H., Tanaka, T., and Hirano, N.

Subjects
Superconducting magnets -- Testing, Superconducting magnets -- Product development, Electric coils -- Testing, Electric coils -- Product development, Magnetic energy storage -- Research, Business, Electronics, Electronics and electrical industries
Abstract

The superconducting magnetic energy storage system (SMES) of output 5 MVA is developed to bridge instantaneous voltage dips. During the field test, it is confirmed that the performance of bridging instantaneous voltage dips by SMEs, the long-term drive reliability and the standby loss charcteristics

Published
2004

6. Newly Designed 3 T MRI Magnet Wound With Bi-2223 Tape Conductors

Author

Terao, Y., primary, Ozaki, O., additional, Ichihara, C., additional, Kawashima, S., additional, Hase, T., additional, Kitaguchi, H., additional, Kobayashi, S., additional, Sato, K., additional, Nakajima, I., additional, Oonishi, N., additional, Poole, M., additional, Takeda, K., additional, Urayama, S., additional, and Fukuyama, H., additional

Published
2013
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