摘要
本文通过发射光谱诊断方法,用H_2等离子体的辐射碰撞模型对连续溃入的微波功率和全永磁磁场约束下产生高密度的H_2等离子体进行光谱诊断,计算出一定放电条件下(微波功率200-700 W,压强0-2 Pa)H^+的密度为1010-1011 cm^(-3),另外讨论了实验中观察到的Balmer系氢原子发射光谱强度随放电条件的变化规律。
In this study, we use the optical emission spectrum （OES） method to determine the electron density of H2 plasma produced by contiguous ECR microwave heating and restricted by an axial magnetic field that produced by an all-permanent-magnet design （NdFeB rings）. The H^＋ density obtained is about 1010-1011 cm^-3 under 200-700 W of the microwave and 0-2 Pa of the gas pressure. The intensity of Balmer lines of hydrogen atoms in excitation state varies with microwave power and gas pressure.
出处
《核技术》
CAS
CSCD
北大核心
2010年第12期933-936,共4页
Nuclear Techniques
基金
清华大学微型脉冲强子源项目资助
关键词
质子源
H2等离子体
激发态氢原子
巴尔默系
离子密度
发射光谱
辐射碰撞
ECR proton source, Optical emission spectrum, Balmer lines of H atoms in excitation state, Hydrogen plasma, Electron density, Proton density
