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Chin. Phys., 2004, Vol. 13(2): 201-204    DOI: 10.1088/1009-1963/13/2/014
PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES Prev   Next  

Numerical study of the scaling of the maximum kinetic energy per unit length for imploding Z-pinch liner

Zeng Zheng-Zhong, Qiu Ai-Ci
Northwest Institute of Nuclear Technology, Xi'an 710024, China
Abstract  Numerical computation based on a zero-dimensional thin-plasma-shell model has been carried out to study the scaling of the maximum kinetic energy per unit length, the current amplitude and the compression ratio for the imploding Z-pinch liner driven by peaked current pulses. A dimensionless scaling constant of 0.9 with an error less than 10% is extracted at the optimal choice of the current and liner parameters. Deviation of the chosen experimental parameter from the optimal exerts a minor influence on the kinetic energy for wider-shaped and slower-decaying pulses, but the influence becomes significant for narrower-shaped and faster-decaying pulses. The computation is in reasonable agreement with experimental data from the Z, Saturn, Blackjack 5 and Qiangguang-I liners.
Keywords:  Z-pinch      plasma x-ray sources     
Received:  07 March 2003      Published:  06 July 2005
PACS:  52.58.Lq (Z-pinches, plasma focus, and other pinch devices)  
  52.59.Px (Hard X-ray sources)  
  52.50.Dg (Plasma sources)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No 10035020).

Cite this article: 

Zeng Zheng-Zhong, Qiu Ai-Ci Numerical study of the scaling of the maximum kinetic energy per unit length for imploding Z-pinch liner 2004 Chin. Phys. 13 201

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