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首页> 外文期刊>Plasma physics and controlled fusion >Comparison of impurity transport model with measurements of He-like spectra of argon at the tokamak TEXTOR
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Comparison of impurity transport model with measurements of He-like spectra of argon at the tokamak TEXTOR

机译：托卡马克TEXTOR上杂质迁移模型与氩气He形谱测量值的比较

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The measured K-alpha spectra of He-like argon were used to determine the densities of H-, He- and Li-like argon ions in ohmically heated plasmas in the tokamak TEXTOR. The obtained ratio of the densities for the Li- and He-like ions shows a significant deviation from coronal equilibrium. In order to interpret these results numerical modelling of the impurity transport was performed by the code RITM with neoclassical and anomalous contributions to the transport coefficients. The measurements show that the transport in the plasma core is much higher than that predicted from the model and has a strong correlation with the line averaged density. This paper also demonstrates the unique ability of the He-like spectra to separate the transport properties and the charge-exchange processes in the plasma.
机译：使用测得的He类氩的K-α光谱确定托卡马克TEXTOR中欧姆加热等离子体中H，He和Li类氩离子的密度。所获得的类Li和He离子的密度比显示出与日冕平衡的显着偏差。为了解释这些结果，使用代码RITM对杂质传输进行了数值建模，并对传输系数进行了新古典和反常的贡献。测量结果表明，等离子体核心中的迁移率远高于模型预测的迁移率，并且与线平均密度具有很强的相关性。本文还展示了类He光谱分离等离子体中的输运性质和电荷交换过程的独特能力。

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