New type superconducting bulk magnet by pulse field magnetizing with usable surface on both sides in open space

Hiroyuki Fujishiro, Atsushi Fujiwara, Tatsuya Tateiwa, Tetsuo Oka, Hidemi Hayashi

Research output: Contribution to journalArticle

8 Citations (Scopus)


A new-type of magnet system using high-Tc superconducting bulks has been developed, in which two aligned bulk disks are cooled down from the side face by thermal conduction and are magnetized along the c-axis in turn employing a split-type pulse coil. The temperature rise ΔT due to the magnetic flux intrusion is relatively small and the trapped field B TP is enhanced in comparison with the conventional bulk magnet system based on a solenoid-type pulse coil. BTP = 3.20 T on the SmBaCuO bulk surface at 50 K and BT4mm = 1.97 T on the vacuum sheath, 4 mm above the bulk surface, have been attained. This type of magnet system, consisting of multi-bulks, with usable surfaces on both sides in open space, can be realized only by use of a split-type pulse coil and has a potential for new application fields.

Original languageEnglish
Article number1643036
Pages (from-to)1080-1083
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Issue number2
Publication statusPublished - 2006 Jun 1



  • Bulk magnet system
  • High-T bulk superconductor
  • Pulse field magnetizing
  • Split coil
  • Temperature rise
  • Trapped field

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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