Balmer-alpha and Balmer-beta Stark line intensity profiles for high-power hydrogen inductively coupled plasmas

作     者：王松柏 雷光玖 刘东平 杨思泽 Wang Song-Bai;Lei Guang-Jiu;Liu Dong-Ping;Yang Si-Ze;School of Physics and Mechanical&Electrical Engineering,Xiamen University;College of Physics and Information Engineering,Fuzhou University;Southwestern Institute of Physics;School of Physics and Mechanical & Electrical Engineering,Xiamen University

作者机构：School of Physics and Mechanical&Electrical EngineeringXiamen University College of Physics and Information EngineeringFuzhou University Southwestern Institute of Physics School of Physics and Mechanical & Electrical EngineeringXiamen University 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2014年第23卷第7期

页      面：499-504页

核心收录：

学科分类：07[理学] 070204[理学-等离子体物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：supported by the National Magnetic Confinement Fusion Science Program of China(Grant Nos.2011GB108011 and 2010GB103001) the MajorInternational(Regional)Project Cooperation and Exchanges(Grant No.11320101005) 

主　　题：high-power radio frequency plasma Hα and Hβ spectral lines in hydrogen ICPs Stark effect 

摘      要：We compare Balmer-alpha （Ha） and Balmer-beta （Hβ） emissions from high-power （1.0-6.0 kW） hydrogen inductively coupled plasmas （ICPs）, and propose region Ⅰ （0.0-2.0 kW）, region Ⅱ （2.0-5.0 kW）, and region Ⅲ （5.0-6.0 kW）. In region Ⅰ, both Ha emission intensity （la） and Hβ emission intensity （1β） increase with radio frequency （RF） power, which is explained by the corona model and Boltzmann＇s law, etc. However, in region II, la almost remains constant while 1β rapidly achieves its maximum value. In region Ⅲ, 1α slightly increases with RF power, while 1β decreases with RF power, which deviates significantly from the theoretical explanation for the Ha and Hβ emissions in region I. It is suggested that two strong electric fields are generated in high-power （2.0-6.0 kW） hydrogen ICPs： one is due to the external electric field of high-power RF discharge, and the other one is due to the micro electric field of the ions and electrons around the exited state hydrogen atoms in ICPs. Therefore, the strong Stark effect can play an important role in explaining the experimental results.