作　　者： ; ;

机构地区： 广州大学物理与电子工程学院物理系

出　　处： 《光学学报》 2003年第9期1115-1118,共4页

摘　　要： 分析多普勒展宽和多普勒频移的区别 ,讨论了弦积分的线形分布和高斯分布的差异 ,利用光谱多道分析仪测量了碳 2 2 7.1nm谱线的线形分布 。 The distinction between Doppler broadening and Doppler shift is analyzed, Doppler broadening locally results from the distribution of velocities of the emitting particles, the line width gives the information on temperature of emitting particles. Doppler shift results when the emitting particles have a bulk non random flow velocity in a particular direction, the drift of central wavelength gives the information on flow velocity of emitting particles, and the Doppler shift only drifts the profile of line without changing the width. The differences between Gaussian fitting and the distribution of chord integral line shape have also been discussed. The distribution of CV227.1 nm spectral line shape has been derived with optical spectroscopic multichannel analyzer (OSMA), ion temperature and rotation velocity have been obtained from Doppler broadening and Doppler shift by Gaussian fitting.

关 键 词： 多普勒展宽 多普勒频移 弦积分 高斯拟合 等离子体 光谱测量 光谱法 测量 离子温度 旋转速度 加热

领　　域： [理学] [理学] [机械工程] [理学] [理学]