Spectroscopy of highly charged tungsten ions relevant to fusion plasmas
Spectroscopy of highly charged tungsten ions relevant to fusion plasmas
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DOI：
10.1088/0031-8949/2009/t134/014026
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发表时间：
2009-05
期刊：
影响因子：
2.9
通讯作者：
C. Biedermann;R. Radtke;R. Seidel;T. Pütterich
中科院分区：
文献类型：
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作者：
C. Biedermann;R. Radtke;R. Seidel;T. Pütterich
柏林电子束离子阱是由马克斯-普朗克等离子体物理学研究所建立的，目的是通过测量高电荷离子，特别是钨离子在x射线、极紫外线和可见光谱范围内的辐射，生成原子物理学数据，支持受控核聚变领域的研究。使用EBIT，可以产生、存储和激发特定电荷状态的离子系综，用于光谱研究。采用这种技术，我们已经研究了软X射线线在0.56 nm处从类铜的W 45+到类V的W50+离子起源于3d-4f的过渡，这也是观察到的高温核心等离子体的ASDEX升级托卡马克。进一步的研究集中在类Si的W 60+到类Ne的W 64+钨离子预测占主导地位的核心等离子体的国际热核聚变实验反应堆（ITER），并在0.13 nm处从n=3-2跃迁强烈辐射。
The Berlin electron beam ion trap (EBIT) has been established by the Max-Planck-Institut für Plasmaphysik to generate atomic physics data in support of research in the field of controlled nuclear fusion by measuring the radiation from highly charged ions, particularly tungsten ions, in the x-ray, extreme ultraviolet and visible spectral ranges. With EBIT a selected ensemble of ions in specific charge states can be produced, stored and excited for spectroscopic investigations. Employing this technique, we have investigated the soft x-ray lines at 0.56 nm from Cu-like W45+ to V-like W50+ ions originating from 3d–4f transitions, which also are observed in the high-temperature core plasma of the ASDEX Upgrade tokamak. A further study focuses on Si-like W60+ to Ne-like W64+ tungsten ions predicted to dominate the core plasma of the International Thermonuclear Experimental Reactor (ITER) and radiate strongly at 0.13 nm from n=3–2 transitions.