| �ù�������HL-2A������ע�����������ɷ� |
| |
| 引用本文： | 杨立梅,于利明,余德良,韩晓玉,雷光玖,段旭如.�ù�������HL-2A������ע�����������ɷ�[J].核聚变与等离子体物理,2009,29(4):361-364. |
| |
| 作者姓名： | 杨立梅 于利明 余德良 韩晓玉 雷光玖 段旭如 |
| |
| 作者单位： | (?????????????о??????? 610041) |
| |
| 摘 要： | 在HL-2A中性束试验平台上，利用多普勒频移光谱方法测量了离子源引出离子流的各组成成分及其随弧流的变化情况。在数据分析中提出了遗传算法(GA)和L-M优化算法相结合进行光谱拟合的方法。结果表明，当束能量为30keV、弧流为340A时，离子流中各组分之比 JH+:JH2+:JH3+=0.57: 0.36: 0.07。当弧流从90A增加到350A时，H+百分比从45%增加到57%，而H3+则从17%降到7%。
|
| 关 键 词： | 离子束成分 多普勒频移 多峰拟合 |
| 收稿时间： | 2009-01-06 |
| 修稿时间： | 2009-05-25 |
Doppler shift spectroscopy for the measurement of ion species of HL-2A neutral beam injector |
| |
| YANG Li-mei,YU Li-ming,YU De-liang,HAN Xiao-yu,LEI Guang-jiu,DUAN Xu-ru.Doppler shift spectroscopy for the measurement of ion species of HL-2A neutral beam injector[J].Nuclear Fusion and Plasma Physics,2009,29(4):361-364. |
| |
| Authors: | YANG Li-mei YU Li-ming YU De-liang HAN Xiao-yu LEI Guang-jiu DUAN Xu-ru |
| |
| Institution: | (Southwestern Institute of Physics??Chengdu 610041) |
| |
| Abstract: | On the NBI test-bed, the ion species of the extracted ion current of ion source and their variance with the arc current have been obtained by taking advantage of optical diagnostic on the basis of Doppler shift. A method based on GA and L-M has been proposed to analyze the experimental spectrum. The results show that the ratio of H+, H2+and H3+ is about 0.57:0.36:0.07 as the beam energy of 30keV and arc current of 340A. When the arc current varies from 90A to 350A, the percentage of H+ increases from 45% to 57%, whereas the H3+ decreases from 17% to 7%. |
| |
| Keywords: | Fraction of ion species Doppler shift Multi-peak fitting |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《核聚变与等离子体物理》浏览原始摘要信息 |
| 点击此处可从《核聚变与等离子体物理》下载免费的PDF全文 |
