Analysis of extreme ultraviolet spectra of laser-produced Cd plasmas
Analysis of extreme ultraviolet spectra of laser-produced Cd plasmas
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激光产生的镉等离子体的极紫外光谱分析
DOI：
10.1088/1674-1056/ab8894
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发表时间：
2020-07
影响因子：
1.7
通讯作者：
Dong Chenzhong
中科院分区：
文献类型：
--
作者：
Bakhiet Mohammedelnazier;Su Maogen;Cao Shiquan;Min Qi;Sun Duixiong;He Siqi;Wu Lei;Dong Chenzhong
为了提供有关Cd结构的详细信息，获得更多关于电离度和跃迁类型的信息，以及对激光产生的Cd等离子体的时间演化行为的理解，利用时空分辨激光产生等离子体光谱技术测量了激光产生的Cd（Cd）等离子体在8.4-12 nm区域的极紫外光谱.用相对论相关（HFR）方法，利用科万程序，用Hartree-Fock（HF）方法对光谱特征进行了分析。结果表明，Cd~（9+）到Cd~（13+）的4p-5s共振跃迁序列在该光谱区合并成强谱线。本文报道了Cd~（9+）和Cd~（10+）离子的一些新的光谱特征。基于稳态碰撞辐射模型中激发态之间的归一化玻尔兹曼分布的假设，通过比较实验和模拟光谱得到了等离子体参数。结果，我们成功地再现了不同时间延迟的合成光谱，这与实验结果吻合得很好。分析了等离子体电子温度和电子密度随时间的演化行为。
In order to provide detailed information about Cd structure and gain more insight regarding ionization degrees and types of transition, as well as the understanding of the temporal evolution behavior of laser produced Cd plasmas, extreme ultraviolet spectra of laser-produced cadmium (Cd) plasmas have been measured in the 8.4-12 nm region using spatiotemporally resolved laser-produced plasma spectroscopy technique. Spectral features were analyzed by the Hartree-Fock (HF) method with relativistic correlations (HFR) using the Cowan code. The results showed that the 4p-5s resonance transition arrays from Cd~(9+) to Cd~(13+) merged to form intense lines in this spectral region. A number of new spectral features from Cd~(9+) and Cd~(10+) ions are reported in this study. Based on the assumption of a normalized Boltzmann distribution among the excited states associated with a steady-state collisional-radiative model, the plasma parameters were obtained by comparing the experimental and simulated spectra. As a result, we succeeded in reproducing the synthetic spectra for different time delays, which yielded good agreement with the experiments. The temporal evolution behaviors of electron temperature and electron density of plasma were also analyzed.
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DOI：
10.1116/1.581473
发表时间：
1998-10
期刊：
Journal of Vacuum Science and Technology
影响因子：
--
作者：
Masahiro Suzuki;Takeshi Tanaka;K. Kawabata
通讯作者：
Masahiro Suzuki;Takeshi Tanaka;K. Kawabata
DOI：
10.1088/0022-3700/7/5/002
发表时间：
1974-04
期刊：
Journal of Physics B
影响因子：
--
作者：
M. Even-Zohar;B. Fraenkel;R. Cowan
通讯作者：
M. Even-Zohar;B. Fraenkel;R. Cowan
DOI：
10.1088/0022-3727/2/12/311
发表时间：
1969
期刊：
Journal of Physics D: Applied Physics
影响因子：
--
作者：
N J Peacock;R S Pease
通讯作者：
N J Peacock;R S Pease
影响因子：
2.9
作者：
A. Ryabtsev;E. Kononov
通讯作者：
A. Ryabtsev;E. Kononov
影响因子：
6.3
作者：
I. Grant;B. J. McKenzie;P. Norrington;D. Mayers;N. Pyper
通讯作者：
I. Grant;B. J. McKenzie;P. Norrington;D. Mayers;N. Pyper