Wire-Array Z-Pinch Length Variations for K-Shell X-Ray Generation on Z

被引：3
|
作者：
Jones, Brent [1 ]
Ampleford, David J. [1 ]
Jennings, Christopher A. [1 ]
Waisman, Eduardo M. [1 ]
Hansen, Stephanie B. [1 ]
Coverdale, Christine A. [1 ]
Cuneo, Michael E. [1 ]
Apruzese, John P. [2 ]
Thornhill, J. Ward [3 ]
Giuliani, John L. [3 ]
Dasgupta, Arati [3 ]
Clark, Robert W. [2 ]
Davis, Jack [3 ]
机构：
[1] Sandia Natl Labs, Albuquerque, NM 87123 USA
[2] Engility Corp, Naval Res Lab, Chantilly, VA 20151 USA
[3] Naval Res Lab, Washington, DC 20375 USA
来源：
IEEE TRANSACTIONS ON PLASMA SCIENCE | 2015年 / 43卷 / 08期
关键词：
K-shell radiation; magnetohydrodynamics (MHD); plasma pinch; wire array; X-ray production; EMISSION; DENSITY;
D O I：
10.1109/TPS.2015.2417052
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：
In developing stainless-steel (SS) and copper wire-array X-ray sources on the Z machine, we consider the optimization of K-shell yield as a function of load height. Theory, numerical modeling, and experimental data suggest that an optimum exists corresponding to a tradeoff between the increase in radiating mass and the decrease in coupled current with increasing pinch height. A typical load height of 20 mm used on many previous Z wire-array X-ray sources is found to be near optimal for K-shell yield production in SS and copper implosions. Electrical data, pinhole imaging, and spectroscopy are used to study plasma conditions in wire-array z pinches corresponding to the variation in K-shell power and yield per unit length as the pinch height is changed from 12 to 24 mm.
引用
收藏
页码：2509 / 2514
页数：6
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