Impact of multifold magnetic structure on spectroscopy analysis in Heliotron J based on EMC3-EIRENE simulation

IF 1.3 4区物理与天体物理 Q3 PHYSICS, FLUIDS & PLASMAS

Contributions to Plasma Physics Pub Date : 2024-04-12 DOI:10.1002/ctpp.202300145

F. Cai, S. Kado, G. Kawamura, C. Feng, R. Matoike, A. Miyashita, S. Ohshima, T. Minami, S. Inagaki, F. Kin, S. Kobayashi, A. Ishizawa, Y. Nakamura, H. Okada, S. Konoshima, T. Mizuuchi, Y. Feng, H. Frerichs, K. Nagasaki

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Abstract

The distribution pattern of the connection length in the divertor region of Heliotron J was calculated by the field line tracing method. A multifold layer structure, characterized by the range of connection length, was revealed to interpret the response of the transport of the lower-charged impurity ions to the divertor structure. Impurity transport simulated by the EMC3-EIRENE code shows that lower-charged impurity ions tend to concentrate in the first multifold layer. This result is consistent with the line-integral extreme ultraviolet spectroscopy measurement, which implies that the impurity's response to the divertor topological structure needs to be considered in interpreting the spectroscopy result.

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基于 EMC3-EIRENE 模拟的多重磁结构对 Heliotron J 光谱分析的影响

利用场线追踪法计算了 Heliotron J 分流区连接长度的分布模式。以连接长度范围为特征的多折叠层结构被揭示出来，以解释低电荷杂质离子的传输对分流结构的响应。EMC3-EIRENE 代码模拟的杂质传输显示，低电荷杂质离子倾向于集中在第一个多折叠层。这一结果与线积分极紫外光谱测量结果一致，这意味着在解释光谱结果时需要考虑杂质对分流器拓扑结构的响应。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Contributions to Plasma Physics 物理-物理：流体与等离子体

CiteScore

2.90

自引率

12.50%

发文量

110

审稿时长

4-8 weeks

期刊介绍： Aims and Scope of Contributions to Plasma Physics: Basic physics of low-temperature plasmas; Strongly correlated non-ideal plasmas; Dusty Plasmas; Plasma discharges - microplasmas, reactive, and atmospheric pressure plasmas; Plasma diagnostics; Plasma-surface interaction; Plasma technology; Plasma medicine.