Turbulence and line shape formation in plasmas

被引：9
|
作者：
Marandet, Y. [1 ]
Rosato, J. [1 ]
Capes, H. [1 ]
Godbert-Mouret, L. [1 ]
Koubiti, M. [1 ]
Mekkaoui, A. [1 ]
Rosmej, F. B. [2 ,3 ]
Stamm, R. [1 ]
机构：
[1] Univ Aix Marseille 1, CNRS, PIIM, Ctr St Jerorme,UMR 6633, FR-13397 Marseille 20, France
[2] Univ Paris 06, LULI, UMR 7605, F-72252 Paris, France
[3] PAPD, Lab Utilisat Lasers Intenses, F-91228 Palaiseau, France
来源：
HIGH ENERGY DENSITY PHYSICS | 2009年 / 5卷 / 04期
关键词：
Line shapes; Plasma turbulence; Probability density function; Doppler broadening; Stark broadening; ION TEMPERATURE-FLUCTUATIONS; TOKAMAK; EDGE; PROFILES; TRANSPORT; HELIUM;
D O I：
10.1016/j.hedp.2009.04.008
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
We investigate the role of turbulent fluctuations on line shape formation in optically thin plasmas. A general expression, valid if the turbulent scales are much larger than the atomic scales, is obtained for the profile measured using a passive spectroscopy set up. Well-known limiting cases for Doppler and Stark broadening are identified. Then, the role of temperature fluctuations on Doppler line shapes, and the effect of density fluctuations on Stark broadened lines in the quasi-static regime are investigated. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：312 / 319
页数：8
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