A cryocooler cooled 5 T superconducting magnet with a horizontal and vertical room temperature bore

Kazunori Jikihara, Keiichi Watazawa, Hitoshi Mitsubori, Junji Sakuraba, Yoshiyuki Sugizaki, Tsuginori Hasebc, Hiroshi Okubo, Mamoru Ishihara, K. Watanabe

研究成果: Article査読

8 被引用数 (Scopus)

抄録

We designed and constructed a eryocooler cooled 5 T superconducting magnet with a horizontal room temperature bore of 50 mm and a vertical room temperature bore of 90 mm without liquid helium. The magnet, which is directly cooled by 4 K Gifford-McMahon cryocooler in vacuum, consists of NbTi coil, Bi(2223) bulk current leads and cryostat. The coil with an inner diameter of 130 mm, an outer diameter of 301 mm, a height of 66 mm and a gap of 80 mm is made using NbTi wires and Cu-plated SUS bobbin. Bi(2223) bulk current leads are thin-walled sintered cylindrical tube. The outer diameter, height and weight of the magnet are 510 mm, 730 mm and 260 kg, respectively. The magnet is cooled down to 3.8K in approximately 62 hours. A continuous operation at 5 T, which is generated by an operating current of 122 A, has been performed.

本文言語English
ページ(範囲)423-426
ページ数4
ジャーナルIEEE Transactions on Applied Superconductivity
7
2 PART 1
DOI
出版ステータスPublished - 1997
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 電子工学および電気工学

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