| 微波单极子天线探针对等离子体密度的测量及修正 |
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| 引用本文： | 王慧慧,李弘,尤玮,王雨后,李斌,陈志鹏,谢锦林,刘万东. 微波单极子天线探针对等离子体密度的测量及修正[J]. 中国科学技术大学学报, 2011, 41(1). DOI: 10.3969/j.issn.0253-2778.2011.01.014 |
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| 作者姓名： | 王慧慧 李弘 尤玮 王雨后 李斌 陈志鹏 谢锦林 刘万东 |
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| 作者单位： | 中国科学院基础等离子体物理重点实验室,中国科学技术大学近代物理系,安徽,合肥,230026 |
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| 基金项目： | 国家自然科学基金(10705028,10835009); 国家重点基础研究发展(973)计划(2008CB717800)资助 |
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| 摘 要： | 对一种新的诊断等离子体密度的方法——微波单极子天线探针的反射特性进行了详细的实验和数值研究,并与静电双探针测量结果进行比较,实验验证了两种测量结果能够较好地吻合.结合实验和数值研究,分析了电子碰撞项、鞘层以及等离子体密度不均匀性对测量结果的影响,并分别提出了鞘层修正和碰撞修正的方法,修正结果表明,在所给的实验条件中,即探针表面鞘层厚度小于1mm、气体压强小于200Pa时,鞘层修正及碰撞修正均可被忽略,而随着气压的升高,碰撞加剧,或者在较厚的鞘层条件下,修正的效果将会逐步突显.另外,测量的空间分辨率受探针几何尺寸制约.
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| 关 键 词： | 单极子天线探针 等离子体 密度诊断 |
Measurements and amendments of plasma density with microwave monopole antenna probe |
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| WANG Huihui,LI Hong,YOU Wei,WANG Yuhou,LI Bin,CHEN Zhipeng,XIE Jinlin,LIU Wandong. Measurements and amendments of plasma density with microwave monopole antenna probe[J]. Journal of University of Science and Technology of China, 2011, 41(1). DOI: 10.3969/j.issn.0253-2778.2011.01.014 |
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| Authors: | WANG Huihui LI Hong YOU Wei WANG Yuhou LI Bin CHEN Zhipeng XIE Jinlin LIU Wandong |
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| Affiliation: | WANG Huihui,LI Hong,YOU Wei,WANG Yuhou,LI Bin,CHEN Zhipeng,XIE Jinlin,LIU Wandong(CAS Key Laboratory of Basic Plasma Physics,Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China) |
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| Abstract: | Based on the reflection characteristics,a monopole antenna used as a plasma density diagnostic tool was investigated experimentally and numerically.Compared with the measurement result obtained by Langmuir double-probe,the monopole antenna probe was a valuable measuring method.The electron collisional effect and sheath thickness effect were discussed and two methods were proposed for revising the effects of collision and sheath respectively.Based on the two methods,both collisional effect and sheath effect ... |
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| Keywords: | monopole antenna probe plasma density measurement |
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