磁化套筒惯性聚变典型物理过程及特征参量

磁化套筒惯性聚变(MagLIF)结合了传统磁约束聚变(MCF)与惯性约束聚变(ICF)的优势,理论上在有限的驱动能力下可以有效降低聚变实现的难度,具有极大的应用潜力。基于一维集成化物理模型编写了数值模拟程序,以ZR装置典型驱动能力27 MA为出发点,以时间演化为顺序,通过数值模拟系统性地总结分析了典型负载参数下MagLIF构型初始化、加速内爆及迟滞3个关键过程中重要特征参量的分布及演化情况。数值模拟结果有助于理解MagLIF构型从预加热经由燃料压缩到最终发生聚变这一快速而复杂的过程,从而为建立相应的物理图像和认知提供了重要支撑,与传统ICF典型参数的对比也体现了该构型的优势所在,为后续研究奠定了基础。

Physical Process and Characteristic Parameters in Magnetized Liner Inertial Fusion

Magnetized liner inertial fusion(MagLIF)has combined the advantages of the conventional magnetic confinement fusion(MCF)and inertial confinement fusion(ICF),which could reduce the barrier of controlled fusion and has great potential and feasibility for future applications.In this work,a conventional MagLIF configuration is calculated with 27 MA driving current based on one-dimensional simulation code MIST,distributions and evolvement of characteristic parameters(such as density,pressure,temperature and fusion product)are acquired and demonstrated during three stages of MagLIF process,including initialization,implosion and stagnation.The simulation results provide significant data and support for the assessment and analysis of MagLIF process,which would be helpful to understand how MagLIF behaves from preheat through compression into fusion.Comparison of key parameters between MagLIF and traditional ICF also be shown in this work.