Self-Adjusting Characterization for Steady-State, Direct Current Cathode-Dominated Glow Discharge Plasmas at High Pressures

作     者：DING Fang ZHENG Shi-Jian KE Bo TANG Zhong-Liang ZHANG Yi-Chuan YANG Kuan XIE Xin-Hua ZHU Xiao-Dong 丁芳;郑仕健;柯博;汤中亮;张一川;杨宽;谢新华;朱晓东

作者机构：CAS Key Laboratory of Basic Plasma PhysicsDepartment of Modern PhysicsUniversity of Science and Technology of ChinaHefei 230026 Institute of Plasma PhysicsChinese Academy of SciencesHefei 230031 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2013年第30卷第8期

页      面：107-109页

核心收录：

学科分类：07[理学] 070204[理学-等离子体物理] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China under Grant No 11075158 the Fund for Fostering Talents in Basic Science of the National Natural Science Foundation of China(No J1103207) 

主　　题：initially shaped Cathode 

摘      要：A steady-state,direct-current high-pressure CH_(4)-H_(2) glow discharge in a cup-shaped cathode parallel to anode configuration is investigated by using their V–I characteristics and CCD *** discharges display an abnormal glow feature,and an expansion of a negative glow is observed on the cathode sidewall with the increasing discharge *** exists a dependence of voltage on gas pressure for different fixed *** voltage decreases with gas pressure initially,and then increases conversely,which is correlated with the glow states of the cathode *** study exhibits a self-adjusting characterization for plasmas in cathode fall,which is important for maintaining steady-state,abnormal glow discharge in a relatively high pressure range.