【摘要】 【目的】为了真实反映聚变中子辐照特性损伤，有必要开展高通量聚变中子源的研究。磁约束氘氘聚变中子源预研装置是国际首台可实现场反等离子体大压缩比级联磁压缩的实验装置，作为该装置核心部件之一的磁压缩磁体，设计要求中心磁场的磁感应强度在500μs内从0 T上升至7 T，为此，提出了针对磁压缩磁体导体部分的设计思路。【方法】围绕磁体的导体设计，从导体材料选取、导体匝间距离与导体径向厚度3方面入手，通过有限元仿真软件分析导体应力情况，得到了导体材料电导率、导体匝间距离以及导体径向厚度对导体应力的影响。【结果】确定了下一步磁体的设计思路，即在欧姆损耗允许的范围内适当选择电导率偏低的导体材料,在轴向空间允许的范围内通过增加绝缘层厚度的方式适当增加导体匝间距，在材料许用应力的范围内适当减小导体径向厚度以降低建设成本。【结论】随着中子源预研装置项目的进一步推进，所提出的设计思路可为磁压缩磁体装置的设计提供优化方向。更多还原

【Abstract】 [Objectives] In order to truly reflect the damage characteristic of fusion neutron irradiation,it is necessary to carry out research on high-flux fusion neutron sources.As the first experimental device in the world that can realize cascaded magnetic compression with high compression ratio of field-reversed configuration plasma,the preliminary research device of magnetic confinement deuterium-deuterium fusion neutron source has important scientific significance.As one of the core components of the device,the magnetic compression magnet was designed to increase the magnetic induction intensity of the central magnetic field from 0 T to 7 T within 500 μs.Therefore,a design idea for the conductor part of the magnetic compression magnet was proposed.[Methods] Based on the conductor design of magnet,the conductor stress was analyzed by finite element simulation software from the three aspects of conductor material selection,conductor turn distance and conductor radial thickness.The influence of conductor material conductivity,conductor turn distance and conductor radial thickness on conductor stress was obtained.[Results] The design idea of the next magnet is determined.That is,the conductor material with low conductivity is appropriately selected within the allowable range of ohmic loss,the conductor turn spacing is appropriately increased by increasing the thickness of the insulation layer within the allowable range of axial space,and the radial thickness of the conductor is appropriately reduced within the allowable range of material stress to reduce the construction cost.[Conclusions] With the further development of the preliminary research device of neutron source project,the design ideas proposed in this paper can provide optimization direction for the design of magnetic compression magnet device.更多还原