Using coherent population trapping in test atoms for magnetic field measurements in toroidal plasmas

被引：1
|
作者：
Akhmedzhanov, R. A. [1 ]
Gushchin, L. A. [1 ]
Zelensky, I. V. [1 ]
Litvak, A. G. [1 ]
Tokman, M. D. [1 ]
机构：
[1] Russian Acad Sci, Inst Appl Phys, Nizhnii Novgorod 603600, Russia
来源：
PHYSICS OF PLASMAS | 2007年 / 14卷 / 09期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1063/1.2771521
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：
A way to measure the profile of the safety factor in toroidal controlled-fusion setups has been developed. The method is based on measuring the ratio of the poloidal magnetic field and the toroidal one locally, based on a modification of the optical resonance-fluorescence signal. The effect of partial suppression of resonance fluorescence is used, which depends on the orientation of the magnetic field relative to the laser beam, and takes place in case of coherent population trapping in test atoms with the Zeeman split-level structure, as affected by double-frequency laser radiation. (C) 2007 American Institute of Physics.
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页数：9
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