Abstract—

The work is aimed at determining parameters of a deuterium-tritium mixture expanding into a vacuum with an external magnetic field, the output of thermonuclear energy from which compensates or exceeds the initial thermal energy of the plasma. This type of assessment is usually based on the Lawson criterion. In the paper the parameters are determined on the basis of the model of adiabatic expansion into the surrounding homogeneous magnetic field of the plasma ball in the magnetohydrodynamic approximation for some special modes of expansion, providing a self-similar distribution of gas-dynamic quantities. The obtained minimum values of the energy expended for the initial heating of the plasma, providing its equality to the resulting integrated fusion energy, are compared with the known estimates within the framework of inertial confinement fusion.

中文翻译：

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氘和Tri混合物的密集等离子体膨胀到有磁场的空旷空间中

摘要—

这项工作旨在确定氘-expanding混合物在外部磁场的作用下扩展为真空的参数，热核能的输出可补偿或超过等离子体的初始热能。这种评估通常基于劳森准则。在本文中，参数是根据磁流体动力学近似中绝热膨胀到等离子球周围均匀磁场的模型确定的，用于某些特殊的膨胀模式，从而提供了气体动力量的自相似分布。在惯性约束聚变的框架内，将获得的用于等离子体初始加热的能量的最小值（与生成的积分聚变能量相等）与已知估计值进行比较。