This paper is a contribution to the development of technology for a MgB2-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 MgB2 conductor and that the conductor could be operated in conduction mode with low levels of temperature gradient. In this paper, a MgB2 conductor was used for the winding of a subsize MRI-like coil segment. The MgB2 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 Ic was measured as a function of temperature (15 K-30 K), and an Ic of 200 A at 15 K was measured.

中文翻译：

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用于 MRI 应用的传导冷却反应和风 MgB2 线圈段的演示

本文是对用于 MRI 系统的 MgB2 基、无冷冻剂和超导磁体技术开发的贡献。具体来说，我们的目标是证明可以使用高性能原位路径 MgB2 导体制造反应和缠绕线圈，并且该导体可以在低温度梯度的传导模式下运行。在本文中，MgB2 导体用于绕制小型 MRI 类线圈段。MgB2 线圈使用反应和缠绕方法缠绕在 457 毫米 ID 101 OFE 铜线圈架上。所用导体的总长度为 330 m。线圈经过环氧树脂浸渍，然后进行低温测试。在初始冷却（传导冷却）之后，测量线圈 Ic 作为温度的函数 (15 K-30 K)，并在 15 K 下测量到 200 A 的 Ic。