Note: Progress on the use of MgB2 superconducting joint technique for the development of MgB2 magnets for magnetic resonance imaging (MRI)

This note presents a superconducting joint technique for the development of MgB2 magnetic resonance imaging (MRI) magnets. The MgB2 superconducting joint was fabricated by a powder processing method using Mg and B powders to establish a wire–bulk–wire connection. The joint resistance measured using a field-decay method was <10−14 Ω, demonstrating that the proposed joint technique could be employed for developing “next-generation” MgB2 MRI magnets operating in the persistent current mode.