| Expansion of Plasma of Electrically Exploding Single Copper Wire Under 4.5kA～9.5kA/Wire |
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| 引用本文： | 李业勋,杨礼兵,孙承纬. Expansion of Plasma of Electrically Exploding Single Copper Wire Under 4.5kA～9.5kA/Wire[J]. 等离子体科学和技术, 2003, 5(4) |
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| 作者姓名： | 李业勋 杨礼兵 孙承纬 |
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| 作者单位： | Institute of fluid physics，Chinese Academy of Engineering Physics，Mianyang 621900，China，Institute of fluid physics，Chinese Academy of Engineering Physics，Mianyang 621900，China，Institute of fluid physics，Chinese Academy of Engineering Physics，Mianyang 621900，China |
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| 基金项目： | The project supported by Pre-research Foundation of Chinese Acadeny of Engineering Physics(No.20010103) |
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| 摘 要： | Abstract The experimental system for electrically exploding single metal wire has been de-signed and manufactured. Expansion of the dense plasma column formed from an electricallyexploding Cu wire of diameter 30 μm has been studied with a high-speed photographer to obtainthe time-dependent radius (R-t) curve. The experimental results demonstrate that the mean ex-pansion rate of the dense plasma column is 1.94 μm/ns, 2.6 μm/ns and 3.75 μm/ns according tothe peak pulse current 4.5 kA, 7 kA and 9.5 kA respectively. The results can be beneficial to givinga profound understanding of the early stage of wire-array Z-pinch physics and to improvement ontheir design.
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Expansion of Plasma of Electrically Exploding Single Copper Wire Under 4.5 KA～9.5 KA/Wire |
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| Li Yexun,Yang Libing,Sun ChengweiInstitute of fluid physics,Chinese Academy of Engineering Physics,Mianyang ,China. Expansion of Plasma of Electrically Exploding Single Copper Wire Under 4.5 KA～9.5 KA/Wire[J]. Plasma Science & Technology, 2003, 5(4) |
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| Authors: | Li Yexun Yang Libing Sun ChengweiInstitute of fluid physics Chinese Academy of Engineering Physics Mianyang China |
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| Affiliation: | Li Yexun,Yang Libing,Sun ChengweiInstitute of fluid physics,Chinese Academy of Engineering Physics,Mianyang 621900,China |
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| Abstract: | The experimental system for electrically exploding single metal wire has been de-signed and manufactured. Expansion of the dense plasma column formed from an electricallyexploding Cu wire of diameter 30μm has been studied with a high-speed photographer to obtainthe time-dependent radius (R-t) curve. The experimental results demonstrate that the mean ex-pansion rate of the dense plasma column is 1.94μm/ns, 2.6μm/ns and 3.75 μm/ns according tothe peak pulse current 4.5 kA, 7 kA and 9.5 kA respectively. The results can be beneficial to givinga profound understanding of the early stage of wire-array Z-pinch physics and to improvement ontheir design. |
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| Keywords: | plasma expansion electrically exploding wire single copper wire |
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