title: Demonstration of a Conduction Cooled React and Wind MgB2Coil Segment for MRI Applications.
abstract: This study is a contribution to the development of technology for an MgB2-based, cryogen-free, superconducting magnet for an MRI system. Specifically, we aim to demonstrate that a react and wind coil can be made using high performance in-situ route MgB2conductor, and that the conductor could be operated in conduction mode with low levels of temperature gradient. In this work, an MgB2conductor was used for the winding of a sub-size, MRI-like coil segment. The MgB2coil was wound on a 457 mm ID 101 OFE copper former using a react-and-wind approach. The total length of conductor used was 330 m. The coil was epoxy impregnated and then instrumented for low temperature testing. After the initial cool down (conduction cooling) the coilIcwas measured as a function of temperature (15-30 K), and anIcof 200 A at 15 K was measured.
authors.affiliation: Center for Superconducting and Magnetic Materials, the Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210 USA.
authors.forename: H S
authors.initials: HS
authors.lastname: Kim
authors.affiliation: Center for Superconducting and Magnetic Materials, the Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210 USA.
authors.forename: C
authors.initials: C
authors.lastname: Kovacs
authors.affiliation: Hyper Tech Research Incorporated, 539 Industrial Mile Road, Columbus, Ohio 43228, USA.
authors.forename: M
authors.initials: M
authors.lastname: Rindfleisch
authors.affiliation: Hyper Tech Research Incorporated, 539 Industrial Mile Road, Columbus, Ohio 43228, USA.
authors.forename: J
authors.initials: J
authors.lastname: Yue
authors.affiliation: Hyper Tech Research Incorporated, 539 Industrial Mile Road, Columbus, Ohio 43228, USA.
authors.forename: D
authors.initials: D
authors.lastname: Doll
authors.affiliation: Hyper Tech Research Incorporated, 539 Industrial Mile Road, Columbus, Ohio 43228, USA.
authors.forename: M
authors.initials: M
authors.lastname: Tomsic
authors.affiliation: Center for Superconducting and Magnetic Materials, the Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210 USA.
authors.forename: M D
authors.initials: MD
authors.lastname: Sumption
authors.affiliation: Center for Superconducting and Magnetic Materials, the Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210 USA.
authors.forename: E W
authors.initials: EW
authors.lastname: Collings
keywords: MRI; Magnet; MgB2 coil; conduction cooling