11 T liquid helium-free superconducting magnet

K. Watanabe; S. Awaji; J. Sakuraba; K. Watazawa; T. Hasebe; K. Jikihara; Y. Yamada; M. Ishihara

doi:10.1016/S0011-2275(96)00091-4

11 T liquid helium-free superconducting magnet

K. Watanabe, S. Awaji, J. Sakuraba, K. Watazawa, T. Hasebe, K. Jikihara, Y. Yamada, M. Ishihara

High Field Laboratory for Superconducting Materials

Research output: Contribution to journal › Article › peer-review

53 Citations (Scopus)

Abstract

An 11 T liquid helium-free superconducting magnet designed at 6 K in vacuum using high temperature superconducting current leads was developed. The NbTi/Nb₃Sn coil was conductively cooled down from room temperature to 4.1 K in 40 h by two 4 K GM-cryocoolers. In a performance test, the coil temperature rose to 6.8 K for the inner Nb₃Sn coil and 5.9 K for the outer NbTi coil, while sweeping the field at 5 A min^-1. A central field of 10.7 T in a 52 mm room temperature bore was generated at an operating current of 149 A. Holding the field at 10.5 T was achieved continuously for 24 h at a constant coil temperature of 4.8 K.

Original language	English
Pages (from-to)	1019-1025
Number of pages	7
Journal	Cryogenics
Volume	36
Issue number	12
DOIs	https://doi.org/10.1016/S0011-2275(96)00091-4
Publication status	Published - 1996

Keywords

GM-cryocooler
High field
High temperature superconducting current lead
Superconducting magnet

ASJC Scopus subject areas

Materials Science(all)
Physics and Astronomy(all)

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10.1016/S0011-2275(96)00091-4

Cite this

@article{65b8a2600785491fbab6c9ce7fedac4d,

title = "11 T liquid helium-free superconducting magnet",

abstract = "An 11 T liquid helium-free superconducting magnet designed at 6 K in vacuum using high temperature superconducting current leads was developed. The NbTi/Nb3Sn coil was conductively cooled down from room temperature to 4.1 K in 40 h by two 4 K GM-cryocoolers. In a performance test, the coil temperature rose to 6.8 K for the inner Nb3Sn coil and 5.9 K for the outer NbTi coil, while sweeping the field at 5 A min-1. A central field of 10.7 T in a 52 mm room temperature bore was generated at an operating current of 149 A. Holding the field at 10.5 T was achieved continuously for 24 h at a constant coil temperature of 4.8 K.",

keywords = "GM-cryocooler, High field, High temperature superconducting current lead, Superconducting magnet",

author = "K. Watanabe and S. Awaji and J. Sakuraba and K. Watazawa and T. Hasebe and K. Jikihara and Y. Yamada and M. Ishihara",

note = "Funding Information: We gratefully thank Professor T. Masumoto of IMR for encouraging this project. This work is supported by the Toray Science Foundation, and Grant-in-Aid for Scientific Researchf rom the Ministry of Education, Science and Culture, Japan.",

year = "1996",

doi = "10.1016/S0011-2275(96)00091-4",

language = "English",

volume = "36",

pages = "1019--1025",

journal = "Cryogenics",

issn = "0011-2275",

publisher = "Elsevier Limited",

number = "12",

}

TY - JOUR

T1 - 11 T liquid helium-free superconducting magnet

AU - Watanabe, K.

AU - Awaji, S.

AU - Sakuraba, J.

AU - Watazawa, K.

AU - Hasebe, T.

AU - Jikihara, K.

AU - Yamada, Y.

AU - Ishihara, M.

N1 - Funding Information: We gratefully thank Professor T. Masumoto of IMR for encouraging this project. This work is supported by the Toray Science Foundation, and Grant-in-Aid for Scientific Researchf rom the Ministry of Education, Science and Culture, Japan.

PY - 1996

Y1 - 1996

N2 - An 11 T liquid helium-free superconducting magnet designed at 6 K in vacuum using high temperature superconducting current leads was developed. The NbTi/Nb3Sn coil was conductively cooled down from room temperature to 4.1 K in 40 h by two 4 K GM-cryocoolers. In a performance test, the coil temperature rose to 6.8 K for the inner Nb3Sn coil and 5.9 K for the outer NbTi coil, while sweeping the field at 5 A min-1. A central field of 10.7 T in a 52 mm room temperature bore was generated at an operating current of 149 A. Holding the field at 10.5 T was achieved continuously for 24 h at a constant coil temperature of 4.8 K.

AB - An 11 T liquid helium-free superconducting magnet designed at 6 K in vacuum using high temperature superconducting current leads was developed. The NbTi/Nb3Sn coil was conductively cooled down from room temperature to 4.1 K in 40 h by two 4 K GM-cryocoolers. In a performance test, the coil temperature rose to 6.8 K for the inner Nb3Sn coil and 5.9 K for the outer NbTi coil, while sweeping the field at 5 A min-1. A central field of 10.7 T in a 52 mm room temperature bore was generated at an operating current of 149 A. Holding the field at 10.5 T was achieved continuously for 24 h at a constant coil temperature of 4.8 K.

KW - GM-cryocooler

KW - High field

KW - High temperature superconducting current lead

KW - Superconducting magnet

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U2 - 10.1016/S0011-2275(96)00091-4

DO - 10.1016/S0011-2275(96)00091-4

M3 - Article

AN - SCOPUS:0030416353

VL - 36

SP - 1019

EP - 1025

JO - Cryogenics

JF - Cryogenics

SN - 0011-2275

IS - 12

ER -

11 T liquid helium-free superconducting magnet

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

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