| 外加静电场下激光诱导等离子体电子、离子特性的实验研究 |
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| 引用本文： | 郑贤锋,杨锐,唐小闩,季学韩,凤尔银,崔执凤.外加静电场下激光诱导等离子体电子、离子特性的实验研究[J].原子与分子物理学报,2002,19(1):1-5. |
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| 作者姓名： | 郑贤锋 杨锐 唐小闩 季学韩 凤尔银 崔执凤 |
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| 作者单位： | 安徽师范大学物理系光谱与材料研究室,安徽芜湖,241000 |
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| 基金项目： | 国家自然科学基金(29873051),安徽师范大学青年资金(125025) |
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| 摘 要： | 从局部热平衡等离子体的一价铝离子速度服从麦克斯韦-玻尔兹曼分布出发,导出了电流信号的时间演化函数,通过对实验曲线拟合,得到激光诱导铝等离子体中一价铝离子的平动温度.实验研究了电流信号强度与外加电压之间的关系.实验结果说明电流信号强度随外加电压的增加而增大但并非线性增长而且与缓冲气体的性质和靶样品的物理特性有关.
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| 关 键 词： | 激光诱导等离子体 外加电场 电流信号强度 |
| 文章编号： | 1000-0364(2002)01-0001-05 |
| 收稿时间： | 2001/8/30 |
| 修稿时间： | 2001年8月30日 |
An investigation on the electron and ion property of the laser produced plasma under additional static electricity field |
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| ZHEN Xian-feng,YANG Rui,TANG Xiao-shuan,JI Xue-han,FNEG Er-yin,CUI Zhi-feng.An investigation on the electron and ion property of the laser produced plasma under additional static electricity field[J].Journal of Atomic and Molecular Physics,2002,19(1):1-5. |
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| Authors: | ZHEN Xian-feng YANG Rui TANG Xiao-shuan JI Xue-han FNEG Er-yin CUI Zhi-feng |
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| Abstract: | The time-evolved function of the electric current signal is derived from the Maxwell-Boltzmann distribution of ion velocity in the local thermal equilibrium plasma, and by fitting the experimental data the ion temperature is obtained. The relation of the electric current signal to the additional voltage is also investigated, and the experimental results show that the signal intensity increases nonlinearly with the additional voltage and also the buffer gas and the sample properties seriously influence the signal intensity. |
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| Keywords: | Laser produced plasma Electric current signal intensity Additional voltage |
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