玻璃圆环内等离子体鞘层分布

doi:10.3969/j.issn.1000-1565.2016.01.005

河北大学学报(自然科学版) ›› 2016, Vol. 36 ›› Issue (1): 21-25.DOI: 10.3969/j.issn.1000-1565.2016.01.005

玻璃圆环内等离子体鞘层分布

冯帆,张永亮,闫佳,贺亚峰

收稿日期:2015-07-13 出版日期:2016-01-25 发布日期:2016-01-25
通讯作者: 贺亚峰(1978—),男,河北阳原人,河北大学副教授,主要从事尘埃等离子体方向研究.E-mail:heyf@hbu.edu.cn
作者简介:冯帆(1992—),女,河北阳原人,河北大学在读硕士研究生,主要从事尘埃等离子体方向研究. E-mail:812536212@qq.com
基金资助:
国家自然科学基金资助项目(11205044;11405042);河北省自然科学基金资助项目(A2011201006;A2012201015);河北省教育厅基金资助项目(Y2012009);河北省青年拔尖人才基金资助项目;中西部高校综合实力提升工程基金资助项目;河北大学科学研究基金资助项目

On the distribution of plasma sheath in a glass ring

FENG Fan,ZHANG Yongliang,YAN Jia,HE Yafeng

College of Physics Science and Technology, Hebei University, Baoding 071002, China

Received:2015-07-13 Online:2016-01-25 Published:2016-01-25

摘要/Abstract

摘要： 实验利用射频辉光放电产生均匀等离子体,带负电荷的花粉颗粒悬浮在鞘层边界处.通过激光散射法及空间分辨测量得到颗粒的分布,进而得到鞘层分布.实验结果表明,随着玻璃环内径的逐渐增大,颗粒的分布越靠近玻璃环,并且玻璃环中心处等离子体鞘层的凸起越明显.用Matlab可将较大玻璃环内鞘层沿径向分布用四次多项式拟合.实验结果对深入研究尘埃等离子体中带电颗粒的各种复杂运动提供了实验依据.

关键词: 尘埃等离子体, 鞘层分布, 拟合

Abstract: Uniform plasma is produced by using of radio frequency glow discharge,pollen grains charged negatively suspend at the sheath boundary.The distribution of particles is observed by laser scattering method and spatial resolution measurement,and then the distribution of the sheath is obtained.Experimental results show that with increasing the diameter of the ring,the distribution of the particles close to the glass wall and the convex sheath at the center of the glass ring becomes obvious.The radial distribution of sheath within large glass ring can be fitted with a quartic polynomial by using Matlab.Our results could contribute to the study of the complex motion of charged grains in dust plasma.

Key words: dusty plasma, sheath distribution, fitting

中图分类号:

O531

冯帆,张永亮,闫佳,贺亚峰. 玻璃圆环内等离子体鞘层分布[J]. 河北大学学报(自然科学版), 2016, 36(1): 21-25.

FENG Fan,ZHANG Yongliang,YAN Jia,HE Yafeng. On the distribution of plasma sheath in a glass ring[J]. Journal of Hebei University (Natural Science Edition), 2016, 36(1): 21-25.

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玻璃圆环内等离子体鞘层分布

On the distribution of plasma sheath in a glass ring

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