Development of an experimental database of EUV spectra from highly charged ions of medium to high Z elements in the Large Helical Device plasmas
Development of an experimental database of EUV spectra from highly charged ions of medium to high Z elements in the Large Helical Device plasmas
复制标题
开发大型螺旋装置等离子体中中高 Z 元素的高电荷离子的 EUV 光谱实验数据库
DOI：
10.1002/xrs.3058
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发表时间：
2019
影响因子：
1.2
通讯作者：
O'Sullivan Gerry
中科院分区：
文献类型：
--
作者：
Suzuki Chihiro;Murakami Izumi;Koike Fumihiro;Higashiguchi Takeshi;Sakaue Hiroyuki A.;Tamura Naoki;Sudo Shigeru;O'Sullivan Gerry
我们正在开发一个实验数据库的极紫外光谱从高电荷离子使用光学薄高温等离子体产生的大型螺旋装置。用掠入射光谱仪系统地记录了原子序数为36 ~ 83的多种元素在1-20 nm范围内的光谱。对于从tin开始的更高Z的元素，主要观察到来自mn =4（N-壳层）离子的离散或准连续光谱特征，这取决于等离子体温度，这导致了一些新的光谱线的实验鉴定。另一方面，对于从氪到钌的中等Z元素，主要发射体aren=3（M-壳层）离子。Δn = 0跃迁的计算波长与测量值吻合良好，并且对于与内次壳层激发构型相关的Δn=0跃迁，计算波长系统地向较短波长移动。
We are developing an experimental database of extreme ultraviolet spectra from highly charged ions using optically thin high‐temperature plasmas produced in the Large Helical Device. Spectra from a variety of elements with atomic numbers ranging from 36 to 83 have been systematically recorded in the range of 1–20 nm by a grazing incidence spectrometer. For higherZelements from tin onward, discrete or quasicontinuum spectral features fromn=4 (N‐shell) ions are mainly observed depending upon the plasma temperature, which leads to some new experimental identifications of spectral lines. On the other hand, major emitters aren=3 (M‐shell) ions for mediumZelements from krypton to ruthenium. The calculated wavelengths for Δn≠0 transitions agree well with the measurements and the calculated wavelengths are systematically shifted to shorter wavelengths for Δn=0 transitions associated with inner‐subshell excited configurations.