【摘要】 利用不同的微场分布函数研究了其对Stark加宽光谱线型的影响。根据Stark加宽理论,考虑到等离子体中的离子碰撞,Stark加宽本质上是一种非对称的光谱线型,其中微场分布函数对光谱线型起着非常关键的作用。研究结果表明,总体上Holtsmark分布和Nearest—Neighbor场分布下的Stark光谱线型差别不太大,但是Mayer模型对Stark加宽光谱线型影响较大。并且随着离子加宽参数的减小,三种不同的微场分布函数对Stark光谱线型的影响逐渐减小;随着电子加宽参数的减小,不同的微场分布函数对Stark光谱线型的影响也逐渐减小;同时发现,当离子加宽参数减小到一定程度时,不同微场分布函数对整个光谱线型的影响基本相似,这也正说明离子间碰撞剧烈时对光谱线型的影响很大。更多还原

【Abstract】 The Stark broadening spectral line profile is described at different electric microfield distribution functions. According to Stark broadening theory, Stark broadening spectral line profile is asymmetry in essence considering plasma ions impact. The electric microfield distribution function is very important for the spectral line profile. The results show that the Stark broadening spectral line profile is similar at the Holtsmark distribution and Nearest-Neighbor field distribution and it is diversification at Mayer model. With the decreasing of the electrons impact broadening parameter, the influences of different electric microfield distribution functions are diminished. With the decreasing of the plasma ions impact parameter, the influences of different electric microfield distribution functions are trailing off. The results also show that the action of electric microfield distribution functions is similar when the plasma ions impact parameter is very small. It is illuminated that the plasma ions intense impact has great influence on the spectral line profile.更多还原