| 基于LIBS技术铁等离子体电子温度和电子密度的研究 |
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| 引用本文： | 赵小侠. 基于LIBS技术铁等离子体电子温度和电子密度的研究[J]. 西安文理学院学报, 2011, 0(4): 38-41 |
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| 作者姓名： | 赵小侠 |
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| 作者单位： | 西安文理学院物理学与光电工程系,陕西西安710065 |
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| 基金项目： | 西安文理学院中青年科研基金资助项目（kyc201023） |
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| 摘 要： | 将1 064纳米脉冲Nd：YAG激光器聚焦于铁条表面产生等离子体.利用10条铁原子谱线做出Boltzmann图并求得等离子体的电子温度是6 474 K,同时利于铁原子谱线382.78纳米的Stark展宽求得等离子体的电子密度是2.7×1017cm-3.基于实验结果证明本实验的铁等离子体满足局部热力学平衡.
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| 关 键 词： | LIBS 原子发射光谱 等离子体 |
Measurements of Electron Temperature and Electron Density in the Laser-induced Iron Plasma |
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| ZHAO Xiao-xia. Measurements of Electron Temperature and Electron Density in the Laser-induced Iron Plasma[J]. Journal of Xi‘an University of Arts & Science:Natural Science Edition Edi Edition, 2011, 0(4): 38-41 |
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| Authors: | ZHAO Xiao-xia |
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| Affiliation: | ZHAO Xiao-xia(Department of Physics and Opto-Electronic Engineering,Xi＇an University of Arts and Science,Xi＇an 710065,China) |
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| Abstract: | A 1064 nm pulsed Nd：YAG is used for the ablation of iron bar in air at atmospheric pressure and the characteristics of the laser-induced iron plasma are studied.The iron plasma temperature（6474 K） is inferred by using the Boltzmann plot method with ten neutral iron lines,while the electron density（2.7 × 1017 cm-3） is obtained from the Stark broadening of the profile of Fe I 382.78 nm.The experimental results show that the laser-induced iron plasma is proved to be in local thermodynamic equilibrium. |
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| Keywords: | LIBS atomic emission spectroscopy plasma |
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