title: No-insulation multi-width winding technique for high temperature superconducting magnet.
abstract: We present aNo-Insulation(NI)Multi-Width(MW) winding technique for an HTS (high temperature superconductor) magnet consisting of double-pancake (DP) coils. The NI enables an HTS magnet self-protecting and the MW minimizes the detrimental anisotropy in current-carrying capacity of HTS tape by assigning tapes of multiple widths to DP coils within a stack, widest tape to the top and bottom sections and the narrowest in the midplane section. This paper presents fabrication and test results of an NI-MW HTS magnet and demonstrates the unique features of the NI-MW technique: self-protecting and enhanced field performance, unattainable with the conventional technique.
authors.affiliation: Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, 170 Albany Street, Cambridge, Massachusetts 02139, USA.
authors.forename: Seungyong
authors.initials: S
authors.lastname: Hahn
authors.forename: Youngjae
authors.initials: Y
authors.lastname: Kim
authors.forename: Dong
authors.initials: D
authors.lastname: Keun Park
authors.forename: Kwangmin
authors.initials: K
authors.lastname: Kim
authors.forename: John P
authors.initials: JP
authors.lastname: Voccio
authors.forename: Juan
authors.initials: J
authors.lastname: Bascuñán
authors.forename: Yukikazu
authors.initials: Y
authors.lastname: Iwasa