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Studies of Plasma Confinement and Stability in a Gas Dynamic Trap: Results of 2016 - 2018

机译:气体动力阱中等离子体限制和稳定性的研究:2016年至2018年的结果

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Paper presents a brief overview of the studies carried out in 2016-2018 at the Gas Dynamic Trap device at the Budker Institute. These studies were focused on the experimental substantiation of a new version of the Gas Dynamic Multi-mirror Trap project, which is aimed at developing the key technologies needed to implement a number of thermonuclear applications of linear magnetic traps. The paper reviews the work aimed at stable plasma confinement under auxiliary ECR heating. We showed that a value of on-axis electron temperature up to 450 eV at plasma density 1.2 × 10sup19 /supmsup?3 /supcan be supported steadily. Studies on processes in expanders, which determine the axial thermal conductivity of the plasma, showed that the profile of the electric potential in the expander corresponds to a theory that gives favorable predictions regarding the thermal insulation properties of the expander. It was shown that the density of neutral gas in the expander in the range up to 10sup20 /supmsup?3 /supdoes not have a significant effect on energy confinement in the trap, despite an estimate of the critical density of 10sup18 /supmsup?3/sup.
机译:论文简要介绍了2016-2018年在Budker研究所的Gas Dynamic Trap设备上进行的研究。这些研究的重点是新版气体动态多镜阱项目的实验证据,该项目旨在开发实现线性磁阱的多种热核应用所需的关键技术。本文回顾了旨在在辅助ECR加热下稳定等离子体限制的工作。我们显示,在等离子体密度1.2×10 19 m ?3 时,可以稳定地支持高达450 eV的轴上电子温度值。对确定等离子体轴向热导率的膨胀机过程的研究表明,膨胀机中电势的分布与一个理论有关,该理论给出了有关膨胀机隔热性能的有利预测。结果表明,尽管膨胀器中的中性气体密度达到10 20 m ?3 ,但对捕集阱中的能量限制没有显着影响临界密度的估计值10 18 m ?3

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