The generation of 25.05 T using a 5.11 T Bi2Sr 2CaCu2Ox superconducting insert magnet

H. W. Weijers, U. P. Trociewitz, K. Marken, M. Meinesz, H. Miao, J. Schwartz

Research output: Contribution to journalArticlepeer-review

112 Scopus citations


A 25.05 T magnetic field was generated by a 5.11 T superconducting Bi 2Sr2CaCu2Ox insert magnet within a 19.94 T resistive magnet. The Bi2Sr2CaCu2O x magnet is constructed using fully reacted powder-in-tube conductor and insulated stainless steel reinforcement. Three concentric sections are used to minimize the total stress in the Bi2Sr2CaCu 2Ox conductor: two double pancake stacks and an outer layer-wound section. The insert coil operates at 4.2 K in a 0.168 m diameter cryostat fitted to the resistive magnet. Here we provide an overview of the design and construction of the insert and the results of self-field and in-field testing. Mechanical and electrical safety issues, related to testing in a large resistive magnet, are discussed.

Original languageEnglish (US)
Pages (from-to)636-644
Number of pages9
JournalSuperconductor Science and Technology
Issue number4
StatePublished - Apr 2004

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Condensed Matter Physics
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry


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