High resolution charge-exchange spectroscopic measurements of aluminum impurity ions in a high temperature plasma

被引：14
作者：
Kumar, S. T. A. [1 ,2 ]
Den Hartog, D. J. [1 ,2 ]
Chapman, B. E. [1 ]
O'Mullane, M. [3 ]
Nornberg, M. [1 ,2 ]
Craig, D. [4 ]
Eilerman, S. [1 ]
Fiksel, G. [5 ]
Parke, E. [1 ]
Reusch, J. [1 ]
机构：
[1] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA
[2] Univ Wisconsin, Ctr Magnet Self Org Lab & Astrophys Plasmas, Madison, WI 53706 USA
[3] Univ Strathclyde, Dept Phys, Glasgow G4 ONG, Lanark, Scotland
[4] Wheaton Coll, Wheaton, IL 60187 USA
[5] Univ Rochester, Laser Energet Lab, Rochester, NY 14627 USA
来源：
PLASMA PHYSICS AND CONTROLLED FUSION | 2012年 / 54卷 / 01期
关键词：
REVERSED-FIELD PINCH; RECOMBINATION SPECTROSCOPY; IONIZATION; TRANSPORT; TOKAMAK; ELECTRONS; TORUS;
D O I：
10.1088/0741-3335/54/1/012002
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：
Charge-exchange recombination spectroscopy, which is generally used to measure low-Z impurities in fusion devices, has been used for measuring Al(+11) and Al(+13) impurities in the Madison Symmetric Torus reversed field pinch. To obtain the impurity ion temperature, the experimental emission spectrum is fitted with a model which includes fine structure in the atomic transition. Densities of these two ionization states, calculated from charge-exchange emission brightness, are used in combination with a collisional radiative model to estimate the abundance of all other charge states of aluminum in the plasma and the contribution of aluminum to the effective ionic charge of the plasma.
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