Measurement of Temperature, Density, and Particle Transport with Localized Dopants in Wire-Array Z Pinches.

B. Jones,C. Deeney,J. L. McKenney,D. J. Ampleford,C. A. Coverdale,P. D. LePell,K. P. Shelton,A. S. Safronova,V. L. Kantsyrev,G. Osborne,V. I. Sotnikov,V. V. Ivanov,D. Fedin,V. Nalajala,F. Yilmaz,I. Shrestha

Physical Review Letters（2008）

Sandia Natl Labs

Cited 9|Views13

Abstract

Axially localized NaF dopants are coated onto Al cylindrical wire arrays in order to act as spectroscopic tracers in the stagnated z-pinch plasma. Non-local-thermodynamic-equilibrium kinetic models fit to Na K-shell lines provide an independent measurement of the density and temperature that is consistent with spectroscopic analysis of K-shell emissions from Al and an alloyed Mg dopant. Axial transport of the Na dopant is observed, enabling quantitative study of instabilities in dense z-pinch plasmas.

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【要点】：本文提出利用轴向局部化的NaF掺杂剂作为光谱学示踪剂，在停滞的Z箍缩等离子体中测量温度、密度和粒子输运，实现了对Z箍缩等离子体不稳定性的定量研究。

【方法】：通过在Al圆柱形线阵列上涂覆轴向局部化的NaF掺杂剂作为光谱学示踪剂，使用非局部热力学平衡动力学模型拟合Na K壳层线，独立测量密度和温度。

【实验】：实验中观测到Na掺杂剂的轴向输运，通过分析实验结果，研究了密集Z箍缩等离子体中的不稳定性。文中未明确提及使用的数据集名称，但实验是基于实际Z箍缩等离子体实验进行的。

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