Studies on EUV spectra from highly charged high Z ions using magnetically confined high temperature plasmas

使用磁约束高温等离子体研究高电荷高 Z 离子的 EUV 光谱

• 批准号: 23740412
• 负责人: SUZUKI CHIHIRO
• 金额: $ 2.58万
• 依托单位: National Institute for Fusion Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23740412/
• 关键词: プラズマ・核融合; 原子・分子物理; 光源技術; 国際情報交換(アイルランド); 国際情報交換（アイルラン ド）; 国際情報交換（アイルランド）; 国際情報交流（アイルランド）

In terms of the development of short wavelength light source and the understanding of impurity behaviors in fusion plasmas, we have observed extreme ultraviolet spectra from highly charged high Z ions of lanthanides, tungsten, bismuth, etc. in optically thin, high temperature plasmas produced in the Large Helical Device (LHD). Spectral feature has drastically changed depending on the electron temperature because of the change in ion abundance. Experimental database has been systematically developed in a wide range of Z. The emission mechanism as well as the dependences on Z and electron temperature has been well understood through the identifications of discrete spectral lines and the comparative analyses with theoretical calculations.

基于短波长光源的发展和对聚变等离子体中杂质行为的理解，我们在大螺旋装置（LHD）产生的光学薄高温等离子体中观测到了镧系元素、钨、铋等高电荷高Z离子的极紫外光谱。由于离子丰度的变化，光谱特征随电子温度的变化而急剧变化。系统地建立了Z.通过对谱线的识别以及与理论计算的对比分析，对发射机制以及Z和电子温度的依赖关系有了较好的了解。

项目成果

EUV spectra from highly charged gadolinium and neodymium ions in LHD and laser produced plasmas

LHD 和激光产生的等离子体中高电荷钆和钕离子的 EUV 光谱

• 发表时间: 2012
• 作者: Takahiro Hamada;Nahoko Nagasaki Tekeuchi;Takehide Kato;Masayuki Fujiwara;Seiji Sonobe;Yoichiro Fukao;Takashi Hashimoto;C. Suzuki
• 通讯作者: C. Suzuki

Observations of EUV spectra from tungsten and lanthanide ions in LHD

LHD 中钨和镧系离子的 EUV 光谱观察

• 发表时间: 2013
• 作者: C. Suzuki;F. Koike;I. Murakami;N. Tamura;S. Sudo;H. A. Sakaue;N. Nakamura;S. Morita;M. Goto;D. Kato;T. Nakano;T. Higashiguchi;C. S. Harte;G. O'Sullivan
• 通讯作者: G. O'Sullivan

Interpretation of spectral emission in the 20 nm region from tungsten ions observed in fusion device plasmas

• DOI: 10.1088/0953-4075/44/17/175004
• 发表时间: 2011-08
• 期刊: Journal of Physics B: Atomic, Molecular and Optical Physics
• 作者: C. Suzuki;C. S. Harte;D. Kilbane;Takako Katō;H. Sakaue;Izumi Murakami;Daiji Kato;K. Sato;Naoki Tamura;Shigeru Sudo;Motoshi Goto;R. D’Arcy;E. Sokell;Gerry O’Sullivan

Observations of EUV spectra from highly charged heavy ions in optically thin plasmas for benchmarking of models

观察光学薄等离子体中高电荷重离子的 EUV 光谱，用于模型基准测试

• 发表时间: 2013
• 作者: C. Suzuki;F. Koike;I. Murakami;N. Tamura;S. Sudo;T. Higashiguchi and G. O'Sullivan
• 通讯作者: T. Higashiguchi and G. O'Sullivan

Interpretation of EUV spectra from tungsten and lanthanide ions observed in the Large Helical Device

对大型螺旋装置中观察到的钨和镧系离子的 EUV 光谱的解释

• 发表时间: 2012
• 作者: C. Suzuki;F. Koike;I. Murakami;N. Tamura;S. Sudo;C. S. Harte;G. O'Sullivan
• 通讯作者: G. O'Sullivan