Characteristics of Langmuir Probe in Low Temperature,Weakly Magnetized Plasmas  

作　　者：吴立其 兰涛 刘万东 欧阳亮 谢锦林 王毅 于治 赵凯 

出　　处：《Plasma Science and Technology》2003年第1期1615-1618,共4页等离子体科学和技术（英文版）

基　　金：The project supported by the National Nature Science Foundation of China (No.19975047, No.10075046)

摘　　要：The systematic Langmuir probe measurements for a weakly magnetized plasma have been carried out in the Linear Magnetized Plasma Device for different magnetic fields. By comparing the ion current density of probes with different sizes, the sheath thickness can be evaluated. It is found that while the ratio of cylindrical probe's dimension to ion Larmor radius is not more than 2, the model of probe for non-magnetized plasma is still applicable.The systematic Langmuir probe measurements for a weakly magnetized plasma have been carried out in the Linear Magnetized Plasma Device for different magnetic fields. By comparing the ion current density of probes with different sizes, the sheath thickness can be evaluated. It is found that while the ratio of cylindrical probe's dimension to ion Larmor radius is not more than 2, the model of probe for non-magnetized plasma is still applicable.

关 键 词：weakly magnetized plasmas Langmuir probe 

分 类 号：O536[理学—等离子体物理]