Image analysis of expanding laser-produced lithium plasma plume in variable transverse magnetic field

被引：26
作者：
Kumar, Ajai [1 ]
George, Sony [2 ]
Singh, R. K. [1 ]
Joshi, Hem [1 ]
Nampoori, V. P. N. [2 ]
机构：
[1] Inst Plasma Res, Gandhinagar 382428, India
[2] Cochin Univ Sci & Tech, ISP, Cochin, Kerala, India
来源：
LASER AND PARTICLE BEAMS | 2011年 / 29卷 / 02期
关键词：
Effect of magnetic field on laser-produced plasma; Fast imaging; Li plasma; AMBIENT GAS; EMISSION; DYNAMICS; DEPOSITION; ABLATION; FILMS;
D O I：
10.1017/S0263034611000218
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Using fast imaging technique, the effect of transverse magnetic field on the shape and dynamics of the lithium plasma plume has been studied. Enhancement in the overall emission intensity as well as appearance of distinct structures (lobes) in the plasma plume in the presence of magnetic field has been observed. By introducing a variable magnetic field, the influence of J x B force in expanding plasma plume across the transverse magnetic field has been explored. It appears that J x B force does not has a substantial role in the observed structures in the present case rather different atomic processes, which get affected due to change in plasma parameters, are responsible for appearance of these structures.
引用
收藏
页码：241 / 247
页数：7
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