Ion Transport Measurements in a Multi-Dipole Argon Plasma by Broadband Laser Induced Fluorescence  

作　　者：谢锦林 于治 刘万东 俞昌旋 

机构地区：[1]CAS Key Laboratory of Basic Plasma Physics,University of Science and Technology of China

出　　处：《Plasma Science and Technology》2009年第3期255-260,共6页等离子体科学和技术（英文版）

摘　　要：Argon ion laser induced fluorescence measurements were carried out in a multipolar filament discharge with a broadband diode laser centered on 668 nm, which stimulated a transition from the metastable state in Ar（Ⅲ） 3d4F7/2 to 4p4D0 5/2. The intensity of the induced fluorescence at 442 nm was maximized by the optimization of the discharge parameters and the laser power. From the recovery of the background fluorescence after the laser was turned off, the ion diffusion coefficient was deduced and compared with the result inferred from the experiments of ion acoustic wave （IAW） damping.Argon ion laser induced fluorescence measurements were carried out in a multipolar filament discharge with a broadband diode laser centered on 668 nm, which stimulated a transition from the metastable state in Ar（Ⅲ） 3d4F7/2 to 4p4D0 5/2. The intensity of the induced fluorescence at 442 nm was maximized by the optimization of the discharge parameters and the laser power. From the recovery of the background fluorescence after the laser was turned off, the ion diffusion coefficient was deduced and compared with the result inferred from the experiments of ion acoustic wave （IAW） damping.

关 键 词：gas discharge laser induced fluorescence ion transport DIFFUSION IAW 

分 类 号：O53[理学—等离子体物理] TN24[理学—物理]