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Understanding of edge plasmas in magnetic fusion energy devices

机译：了解磁聚变能量设备中的边缘等离子体

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A limited overview is given of the theoretical understanding of edge plasmas in fusion devices. This plasma occupies the thin region between the hot core plasma and material walls in magnetic confinement devices. The region is typically formed by a change in magnetic topology from close magnetic field lines (i.e. the core region) and open field lines that contact material surfaces (i.e. the scrape-off layer (SOL)), with the most common example being magnetically diverted tokamaks. The physics of this region is determined by the complex interaction of plasma with neutral species in the presence of plasma turbulence, and impurity radiation is often an important component. Recent advances in modelling strong, intermittent micro-turbulent edge-plasma transport are given, as is the closely coupled self-consistent evolution of the edge-plasma profiles in tokamaks. In addition, selected new results are given for the characterization of edge-plasmas behaviour in the areas of edge-pedestal relaxation and SOL transport via edge-localized modes, impurity formation including dust and magnetic field-line stochasticity at the edge of tokamaks.
机译：给出了对融合装置中边缘等离子体的理论理解的有限概述。该等离子体占据了磁性限制装置中热芯等离子体和材料壁之间的薄区域。该区域通常是由磁性拓扑的变化形成的，其中磁场的变化是由闭合磁场线（即核心区域）和与材料表面接触的开放磁场线（即刮除层（SOL））引起的，最常见的示例是磁转向托卡马克该区域的物理性质取决于在等离子体湍流中等离子体与中性物质的复杂相互作用，并且杂质辐射通常是重要的组成部分。给出了建模强的，间歇性的微湍流边缘等离子体传输的最新进展，以及托卡马克中边缘等离子体轮廓的紧密耦合的自洽演变。此外，给出了一些新的结果，用于表征边缘基座弛豫和通过边缘局部化模式进行SOL传输，边缘形成的杂质形成（包括粉尘和托卡马克边缘的磁场线随机性）方面的边缘等离子体行为。

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