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On secondary electron emission and its semi-empirical description

机译：关于二次电子发射及其半经验描述

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摘要

The description of secondary electron emission, as presented by plasma-material interaction fusion compendia, is demonstrated to be outdated both in its theoretical and experimental aspects. As a consequence, the recommended treatment leads to a strong overestimation of the secondary electron emission yields for tokamak relevant materials. Reliable experimental data-sets, in fusion energy ranges, are identified after a detailed review of a recently updated electron-solid interaction database and previously published experimental results. A novel semi-empirical approach is proposed for the description of the secondary electron emission yield. Application of the approach for a large number of solids reveals an unprecedented agreement with experimental data. The present results can serve as a reliable input for future quantitative investigations of the effect of secondary electron emission on various aspects of scrape-off-layer physics.
机译：由等离子体-材料相互作用融合纲要提出的对二次电子发射的描述在理论和实验方面均已过时。结果，推荐的处理导致对托卡马克相关材料的二次电子发射产率的高估。在详细审查了最近更新的电子-固体相互作用数据库和先前发表的实验结果之后，才能确定在聚变能范围内可靠的实验数据集。提出了一种新颖的半经验方法来描述二次电子发射量。该方法对大量固体的应用揭示了与实验数据前所未有的一致性。目前的结果可以作为可靠的输入，用于未来定量研究二次电子发射对刮除层物理学各个方面的影响。

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