This paper is a contribution to the development of technology for a MgB 2 -based, cryogen-free, and superconducting magnet for an MRI system. Specifically, we aim to demonstrate that a react and wind coil can be made using a high-performance in situ route MgB 2 conductor and that the conductor could be operated in conduction mode with low levels of temperature gradient. In this paper, a MgB 2 conductor was used for the winding of a subsize MRI-like coil segment. The MgB 2 coil was wound on a 457-mm ID 101 OFE copper former using a react-and-wind approach. The total length of the conductor used was 330 m. The coil was epoxy impregnated and then instrumented for low temperature testing. After the initial cooldown (conduction cooling), the coil $I_{c}$ was measured as a function of temperature (15 K–30 K), and an $I_{c}$ of 200 A at 15 K was measured.