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

doi:10.1088/1009-1963/13/2/014

中国物理B ›› 2004, Vol. 13 ›› Issue (2): 201-204.doi: 10.1088/1009-1963/13/2/014

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

曾正中, 邱爱慈

Northwest Institute of Nuclear Technology, Xi'an 710024, China

收稿日期:2003-03-07 修回日期:2003-07-31 出版日期:2004-02-06 发布日期:2005-07-06
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No 10035020).

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

Zeng Zheng-Zhong (曾正中), Qiu Ai-Ci (邱爱慈)

Northwest Institute of Nuclear Technology, Xi'an 710024, China

Received:2003-03-07 Revised:2003-07-31 Online:2004-02-06 Published:2005-07-06
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No 10035020).

摘要/Abstract

摘要： 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.

关键词: Z-pinch, plasma x-ray sources

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.

Key words: Z-pinch, plasma x-ray sources

中图分类号: (Z-pinches, plasma focus, and other pinch devices)

52.58.Lq

52.59.Px (Hard X-ray sources) 52.50.Dg (Plasma sources)

曾正中, 邱爱慈. Numerical study of the scaling of the maximum kinetic energy per unit length for imploding Z-pinch liner[J]. 中国物理B, 2004, 13(2): 201-204.

Zeng Zheng-Zhong (曾正中), Qiu Ai-Ci (邱爱慈). Numerical study of the scaling of the maximum kinetic energy per unit length for imploding Z-pinch liner[J]. Chinese Physics, 2004, 13(2): 201-204.

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

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

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