电流对多级弧放电装置中的氩等离子体  

Influence of Current on Characteristics of Argon Plasma in Cascaded Arc

作　　者：张浚源[1] 王鹏[1] 陈峰[2] 孙伟中[1] 吕晓丹[2] 苟富均[1,3] 

机构地区：[1]四川大学原子核科学技术研究所,辐射物理及技术教育部重点实验室,成都610064 [2]贵州大学PSI研究所,贵阳550025 [3]荷兰皇家科学院等离子体所,荷兰2300

出　　处：《真空科学与技术学报》2012年第7期630-635,共6页Chinese Journal of Vacuum Science and Technology

基　　金：国际热核聚变实验堆(ITER)计划专项资助的课题(批准号:2009GB104006)

摘　　要：使用PLASIMO模拟了不同外加电流对多级弧放电产生的非热平衡下的氩等离子体特性的影响。在模拟中,腔体两端所加电流分别为30,50,70和90 A;模拟结果表明,在模拟区域内,电子密度呈先增大后减小的趋势,并且随着外加电流的增加,中心轴线上出口处的电子密度、电子温度和重粒子温度均逐渐增大。电子的电导率和电子以及重粒子的热导率也随着外加电流的增加而增大。The impacts of the external current on the characteristics of the argon plasma in the cascaded arc, a set- up dedicated to the TOKMAK, were modeled, approximated, and simulated based on the high temperature plasma dynam- ics theory, with the software package PLSIMO. The simulated results show that for the argon arc discharge, the electron density, in the simulated area, varies in an increase-decrease way, and that as the external current increases, the electron density, the electron temperature, and the temperature of the heavy particles at the output end of the syTmnetry axis, gradu- ally increases. In addition, the electrical conductivity of electrons, and the thermal conductivity of both the electrons and the heavy particles increase with an increase of the current as well.

关 键 词：流体 多级弧放电 氩等离子体特性 电子密度 电子温度 

分 类 号：O531[理学—等离子体物理] O539[理学—物理]