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Interpretation of the D-x emission from the high field side of Alcator C-Mod

机译:解释Alcator C-Mod高场侧的D-x发射

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摘要

Measurements from an inner wall mounted scanning Langmuir probe and modelling of D-alpha emission show a sharp fall-off of plasma density in the inboard private flux region. D-alpha emission is modelled using a one-dimensional space, two-dimensional velocity kinetic neutral code in order to track the changes in the density profile while the magnetic topology is changed from single to double null. A sharp density decay is observed to track with the location of the secondary separatrix. The data presented are consistent with a lower level of cross-field transport on field lines in the private flux region restricted to the high field side when compared to cross-field transport on field lines in the low field side scrape-off layer.
机译:从安装在内壁的扫描Langmuir探针进行的测量以及D-alpha发射的模型显示,内侧私人通量区域的等离子体密度急剧下降。 D-alpha发射是使用一维空间,二维速度动力学中性码建模的,以便在磁拓扑结构从单无效变为双无效时跟踪密度分布的变化。观察到急剧的密度衰减,以跟踪次要分离线的位置。与低场侧刮除层中场线上的跨场传输相比,呈现的数据与专用磁通量区域中场线在受限于高场侧的场场传输较低水平相一致。

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