Sheath Criterion for a Collisional Electronegative Plasma Sheath in an Applied Magnetic Field  

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作  者:ZOU Xiu LIU Hui-Ping QIU Ming-Hui SUN Xiao-Hang 邹秀;刘惠平;邱明辉;孙骁航(School of Science,Dalian Jiaotong University,Dalian 116028;Department of Physics Mathematics and Physics Science Class,Tsinghua University,Beijing 100084)

机构地区:[1]School of Science,Dalian Jiaotong University,Dalian 116028 [2]Department of Physics Mathematics and Physics Science Class,Tsinghua University,Beijing 100084

出  处:《Chinese Physics Letters》2011年第12期191-194,共4页中国物理快报(英文版)

基  金:Supported by the National Natural Science Foundation of China under Grant Nos 11005015 and 10605008.

摘  要:The sheath criterion for a collisional electronegative plasma sheath in an applied magnetic field is investigated.It is assumed that the system consists of hot electrons,hot negative ions and cold positive ions.The effect of an applied magnetic field on the sheath criterion is discussed.The results reveal that the magnetic field has effects on both the upper and lower limits,which cause the range of the ion Mach number to increase.In addition,the numerical calculations of the electronegative plasma sheath are carried out to demonstrate the effects of sheath criterion on the characteristics of the sheath.

关 键 词:CRITERION CRITERION assumed 

分 类 号:O53[理学—等离子体物理]

 

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