Design study on future accelerator magnets using largely keystoned cables

K. Ishibashi, K. Kamezawa, A. Katase, A. Terashima, Y. Sakakibara, Y. Funahashi, H. H. Hirabayashi

Research output: Contribution to journalArticlepeer-review


In the near future, superconducting magnets with a small beam aperture will be required for high energy proton colliders. When coils are designed to be self arched over a small beam pipe, it simplifies the magnet construction both in the winding procedure and in the field quality control. Fabrication of these coils requires cables with large keystone angles. A new structure of “braid-in-strands” is devised to produce these cables. Two types of magnet coils are studied for use of these cables. The straight section of a magnet has been fabricated as a preliminary test. Strand positions have all been measured on the cross section of the coil. Magnetic field analysis is made on the basis of the position data of the strands.

Original languageEnglish
Pages (from-to)1628-1631
Number of pages4
JournalIEEE Transactions on Magnetics
Issue number2
Publication statusPublished - Mar 1989

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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