A review article: Compact magnetic field generators containing HTS bulk magnets cooled by refrigerators and their feasible applications

Tetsuo Oka, Jun Ogawa, Satoshi Fukui, Takao Sato, Tomohito Nakano, Kazuya Yokoyama, Takashi Nakamura, Hiroyuki Fujishiro, Koshichi Noto

研究成果: Chapter

1 引用 (Scopus)

抄録

Various types of strong magnetic field generators with use of HTS bulk magnets and the small-scale refrigerators have been actually proposed and experimentally estimated for the feasible applications. The most characteristic feature of bulk magnets is regarded as compact and strong field generators with respect to their magnetic field spaces or their machine structures of themselves. Among them, the magnetic flux density of the face-toface magnetic poles reached 3.2 T and 4.4 T when they were activated by the pulsed field magnetization and the field cooling method, respectively. Furthermore, a very small bulk magnet generating 2.8 T and the system featured by the wide magnetic poles containing seven magnets have been constructed with use of ST pulse tube coolers in order to expand the feasible application areas. On the other hand, although the bulk magnets are characterized by their steep field distributions, we attempted to gain the uniform magnetic field space, and successfully achieved the uniformity of 385 ppm in 4 mm range by combining the deformed magnetic field profiles which generated between the face-to-face magnetic poles. The performances of these unique systems have exceeded those of the conventional electromagnet or any permanent magnets by far, demonstrating the superiority to other strong magnetic field generators.

元の言語English
ホスト出版物のタイトルHigh-Temperature Superconductors
ホスト出版物のサブタイトルOccurrence, Synthesis and Applications
出版者Nova Science Publishers, Inc.
ページ291-306
ページ数16
ISBN(電子版)9781536133424
ISBN(印刷物)9781536133417
出版物ステータスPublished - 2018 1 1
外部発表Yes

Fingerprint

Refrigerators
Magnets
Magnetic fields
Poles
Electromagnets
Magnetic flux
Permanent magnets
Magnetization
Cooling

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)

これを引用

Oka, T., Ogawa, J., Fukui, S., Sato, T., Nakano, T., Yokoyama, K., ... Noto, K. (2018). A review article: Compact magnetic field generators containing HTS bulk magnets cooled by refrigerators and their feasible applications. : High-Temperature Superconductors: Occurrence, Synthesis and Applications (pp. 291-306). Nova Science Publishers, Inc..

A review article : Compact magnetic field generators containing HTS bulk magnets cooled by refrigerators and their feasible applications. / Oka, Tetsuo; Ogawa, Jun; Fukui, Satoshi; Sato, Takao; Nakano, Tomohito; Yokoyama, Kazuya; Nakamura, Takashi; Fujishiro, Hiroyuki; Noto, Koshichi.

High-Temperature Superconductors: Occurrence, Synthesis and Applications. Nova Science Publishers, Inc., 2018. p. 291-306.

研究成果: Chapter

Oka, T, Ogawa, J, Fukui, S, Sato, T, Nakano, T, Yokoyama, K, Nakamura, T, Fujishiro, H & Noto, K 2018, A review article: Compact magnetic field generators containing HTS bulk magnets cooled by refrigerators and their feasible applications. : High-Temperature Superconductors: Occurrence, Synthesis and Applications. Nova Science Publishers, Inc., pp. 291-306.
Oka T, Ogawa J, Fukui S, Sato T, Nakano T, Yokoyama K その他. A review article: Compact magnetic field generators containing HTS bulk magnets cooled by refrigerators and their feasible applications. : High-Temperature Superconductors: Occurrence, Synthesis and Applications. Nova Science Publishers, Inc. 2018. p. 291-306
Oka, Tetsuo ; Ogawa, Jun ; Fukui, Satoshi ; Sato, Takao ; Nakano, Tomohito ; Yokoyama, Kazuya ; Nakamura, Takashi ; Fujishiro, Hiroyuki ; Noto, Koshichi. / A review article : Compact magnetic field generators containing HTS bulk magnets cooled by refrigerators and their feasible applications. High-Temperature Superconductors: Occurrence, Synthesis and Applications. Nova Science Publishers, Inc., 2018. pp. 291-306
@inbook{9c17d4d04e86496dbd7afa7db53b3c74,
title = "A review article: Compact magnetic field generators containing HTS bulk magnets cooled by refrigerators and their feasible applications",
abstract = "Various types of strong magnetic field generators with use of HTS bulk magnets and the small-scale refrigerators have been actually proposed and experimentally estimated for the feasible applications. The most characteristic feature of bulk magnets is regarded as compact and strong field generators with respect to their magnetic field spaces or their machine structures of themselves. Among them, the magnetic flux density of the face-toface magnetic poles reached 3.2 T and 4.4 T when they were activated by the pulsed field magnetization and the field cooling method, respectively. Furthermore, a very small bulk magnet generating 2.8 T and the system featured by the wide magnetic poles containing seven magnets have been constructed with use of ST pulse tube coolers in order to expand the feasible application areas. On the other hand, although the bulk magnets are characterized by their steep field distributions, we attempted to gain the uniform magnetic field space, and successfully achieved the uniformity of 385 ppm in 4 mm range by combining the deformed magnetic field profiles which generated between the face-to-face magnetic poles. The performances of these unique systems have exceeded those of the conventional electromagnet or any permanent magnets by far, demonstrating the superiority to other strong magnetic field generators.",
keywords = "Bulk magnet, High temperature superconductor, Magnetic field trapping, Pulsed field, Refrigerator",
author = "Tetsuo Oka and Jun Ogawa and Satoshi Fukui and Takao Sato and Tomohito Nakano and Kazuya Yokoyama and Takashi Nakamura and Hiroyuki Fujishiro and Koshichi Noto",
year = "2018",
month = "1",
day = "1",
language = "English",
isbn = "9781536133417",
pages = "291--306",
booktitle = "High-Temperature Superconductors",
publisher = "Nova Science Publishers, Inc.",
address = "United States",

}

TY - CHAP

T1 - A review article

T2 - Compact magnetic field generators containing HTS bulk magnets cooled by refrigerators and their feasible applications

AU - Oka, Tetsuo

AU - Ogawa, Jun

AU - Fukui, Satoshi

AU - Sato, Takao

AU - Nakano, Tomohito

AU - Yokoyama, Kazuya

AU - Nakamura, Takashi

AU - Fujishiro, Hiroyuki

AU - Noto, Koshichi

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Various types of strong magnetic field generators with use of HTS bulk magnets and the small-scale refrigerators have been actually proposed and experimentally estimated for the feasible applications. The most characteristic feature of bulk magnets is regarded as compact and strong field generators with respect to their magnetic field spaces or their machine structures of themselves. Among them, the magnetic flux density of the face-toface magnetic poles reached 3.2 T and 4.4 T when they were activated by the pulsed field magnetization and the field cooling method, respectively. Furthermore, a very small bulk magnet generating 2.8 T and the system featured by the wide magnetic poles containing seven magnets have been constructed with use of ST pulse tube coolers in order to expand the feasible application areas. On the other hand, although the bulk magnets are characterized by their steep field distributions, we attempted to gain the uniform magnetic field space, and successfully achieved the uniformity of 385 ppm in 4 mm range by combining the deformed magnetic field profiles which generated between the face-to-face magnetic poles. The performances of these unique systems have exceeded those of the conventional electromagnet or any permanent magnets by far, demonstrating the superiority to other strong magnetic field generators.

AB - Various types of strong magnetic field generators with use of HTS bulk magnets and the small-scale refrigerators have been actually proposed and experimentally estimated for the feasible applications. The most characteristic feature of bulk magnets is regarded as compact and strong field generators with respect to their magnetic field spaces or their machine structures of themselves. Among them, the magnetic flux density of the face-toface magnetic poles reached 3.2 T and 4.4 T when they were activated by the pulsed field magnetization and the field cooling method, respectively. Furthermore, a very small bulk magnet generating 2.8 T and the system featured by the wide magnetic poles containing seven magnets have been constructed with use of ST pulse tube coolers in order to expand the feasible application areas. On the other hand, although the bulk magnets are characterized by their steep field distributions, we attempted to gain the uniform magnetic field space, and successfully achieved the uniformity of 385 ppm in 4 mm range by combining the deformed magnetic field profiles which generated between the face-to-face magnetic poles. The performances of these unique systems have exceeded those of the conventional electromagnet or any permanent magnets by far, demonstrating the superiority to other strong magnetic field generators.

KW - Bulk magnet

KW - High temperature superconductor

KW - Magnetic field trapping

KW - Pulsed field

KW - Refrigerator

UR - http://www.scopus.com/inward/record.url?scp=85048390628&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85048390628&partnerID=8YFLogxK

M3 - Chapter

AN - SCOPUS:85048390628

SN - 9781536133417

SP - 291

EP - 306

BT - High-Temperature Superconductors

PB - Nova Science Publishers, Inc.

ER -