Spectra of Cd, In, Sb and Te in laser produced plasmas (5-9.2 Å) and survey of 2p6 nl energy levels in the sodium isoelectronic sequence (Zn XX-Nd L)
Spectra of Cd, In, Sb and Te in laser produced plasmas (5-9.2 Å) and survey of 2p6 nl energy levels in the sodium isoelectronic sequence (Zn XX-Nd L)
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DOI：
10.1088/0031-8949/43/1/005
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发表时间：
1991
期刊：
影响因子：
2.9
通讯作者：
I. Matsushima;J. Geindre;C. Chenais-popovics;J. Gauthier;J. Wyart
中科院分区：
文献类型：
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作者：
I. Matsushima;J. Geindre;C. Chenais-popovics;J. Gauthier;J. Wyart
用平面晶体谱仪在5.0 ~ 9.2 A范围内拍摄了倍频Nd: YAG激光（0.53µm, 600 ps, 5 × 1014W cm−2）辐照Cd、In、Sb和Te产生的等离子体发射光谱。通过比较相对论参数势法的实验波长λexp和预测波长λREL，确定了类钠离子从2p6nl（n = 4-7）到2p63l'的跃迁。通过将这些比较扩展到低Z元素的水平，导出了exp - EREL = f(Z)的系统趋势。所得的半经验能量从Zn XX到Nd L列出，并给出了推荐波长和电离极限。简要描述了类镁离子（Cd36+至Te40+）谱与类钠离子谱重叠的一些特征。
The emission spectra of plasma produced by frequency-doubled Nd: YAG laser irradiation (0.53 µm, 600 ps, 5 × 1014W cm−2) of Cd, In, Sb and Te have been photographed in the region 5.0-9.2 A by means of a flat crystal spectrograph. The transitions from 2p6nl(n = 4-7) to 2p63l' in sodium-like ions are identified by comparison between experimental wavelengths λexp and predictions λREL of the relativistic parametric potential method. By extending these comparisons to the levels of lower-Z elements, systematic trends of Eexp - EREL = f(Z) are derived. The resulting semi-empirical energies are listed from Zn XX to Nd L and lead to recommended wavelengths and to ionization limits. Some features of magnesium-like ion spectra (Cd36+ through Te40+) which overlap sodium-like ion spectra, are briefly described.