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文摘
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分析了多普勒展宽和多普勒频移区别，讨论了高斯拟合和弦积分线形分布的差异。利用多道光学分析仪（OSMA）测量HT-6M托卡马克限制器前H_α线形分布，通过高斯拟合由多普勒展宽和多普勒频移分别得出等离子体离子温度和粒子入射速度。 |
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其他语种文摘
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The distinction between Doppler broadening and Doppler shift has 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 low velocity in a particular direction, the dirft of central wavelength gives the information of low velocity of emitting particles, and the Doppler shift only dirifts the profile of line without changing the width. The difference between Gaussian fitting and the distribution of chord-integral line shape have also been discussed. The distribution of H_α spectral line shape has been derived from the surface of limiter in HT-6M Tokamak with optical spectroscope multichannel analysis (OSMA), the result by double Gaussian fitting shows that the line shape make up of two port, the emitting of reflect particles with higher energy and the release particle from the limiter surface. Ion temperature and recycling particle flow velocity have been obtained from Doppler broadening and Doppler shift. |
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来源
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光谱学与光谱分析
,2002,22(4):667-669 【核心库】
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关键词
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多普勒展宽
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多变勒频移
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高斯拟合
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地址
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1.
广州大学（桂花岗校区）物理系, 广东, 广州, 510405
2.
中国科学院等离子体物理研究所, 安徽, 合肥, 230031
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-0593 |
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学科
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物理学 |
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文献收藏号
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CSCD:997491
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