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丝阵负载Z箍缩内爆动力学研究

盛亮 邱孟通 黑东炜 邱爱慈 丛培天 王亮平 魏福利

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丝阵负载Z箍缩内爆动力学研究

盛亮, 邱孟通, 黑东炜, 邱爱慈, 丛培天, 王亮平, 魏福利

Research of implosion dynamics for wire array Z pinch

Sheng Liang, Qiu Meng-Tong, Hei Dong-Wei, Qiu Ai-Ci, Cong Pei-Tian, Wang Liang-Ping, Wei Fu-Li
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  • 丝阵负载内爆动力学行为基本可以分为以下四个过程:1)丝的烧蚀;2)壳层的形成;3)内爆;4)滞止.利用所研制的可见光分幅相机和X射线分幅相机在"强光一号"加速器上对多种型号的丝阵负载Z箍缩内爆动力学行为进行了实验研究,获得了从早期单丝烧蚀到等离子体柱崩毁全过程图像,并对实验结果进行了分析,主要研究成果如下:1)发现存在较长时间的丝烧蚀过程,且单丝烧蚀在轴向上并不均匀;实验得到的内爆轨迹与唯像模型计算结果较为一致.2)不论早期的可见光图像还是中后期的软X射线图像都存在明显的阴极发射,内爆后期在阴极附近存在明
    The implosion dynamics of wire array Z pinch can be divided into four stages: (1) wire ablation; (2) formation of plasma shell; (3) implosion; (4) stagnation. Based on the optical-framing camera and the soft X-ray framing camera, lots of experiments on the early stage of wire array Z pinch and imploding dynamics have been carried out. Images of wire array Z pinch from wire ablation to plasma column breakdown were obtained. The main results were as follows: (1) There is a long ablation stage, and the wire ablation is not uniform along the axis. The imploding experimental trajectory is consistent with the phenomenological model. (2) The cathode emission is obviously observed in both optical images and X ray images. In the late stage of implosion, there is obvious trailing radiation distribution around the cathode. (3) The precursor plasma column is formed after the collision of the ablating plasma at the axis, which expands at first, then becomes compressed. (4) The temperature and ionization stage of corona plasma were estimated according to its azimuthally expanding velocity.
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  • [1]

    Hussey W 1990 J. Appl. Phys. 51 1452

    [2]

    Ryutov D D, Derzon M S, Matzen M K 2000, Reviews of Modern Physics 72 167

    [3]

    Sanford T W L, Allshouse G O, Marder B M, Nash T J, Mock R C, Spielman R B, Seamen J F, McGurn J S, Jobe D, Gilliland T L, Vargas M, Struve K W, Stygar W A, Douglas M R, Matzen M K, Hammer J H, DeGroot J S, Eddleman J L, Peterson D L, Mosher D, Whitney K G, Thornhill J W, Pulsifer P E, Apruzese J P, Maron Y 1996 Physical Review Letters 77 5063

    [4]

    Deeney C, Douglas M R, Spielman R B, Nash T J, Peterson D L, ’Eplattenier P L, Chandler G A, Seamen J F, Strve K W 1998 Physical Review Letters 81 4883

    [5]

    Lebedev S V, Beg F N, Bland S N, Chittenden J P, Dangor A E, Haines M G, Kwek K H, Pikuz S A, Shelkovenko T A 2001 Phys. Plasmas 8 3734

    [6]

    Xia G X, Zhang F Q, Xu Z P, Xu R K, Chen J C, Ning J M 2010 Acta Phys Sin. 59 97(in Chinese) [夏广新、章法强、许泽平、徐荣昆、陈进川、宁家敏 2010 物理学报 59 97]

    [7]

    Qiu A C, Kuai B, Zeng Z Z, Wang W S, Qiu M T, Wang L P, Cong P T, Lü M 2006 Acta. Phys. Sin. 55 5917 (in Chinese) [邱爱慈、蒯斌、曾正中、王文生、邱孟通、王亮平、从培天、吕 敏 2006 物理学报 55 5917]

    [8]

    Ye F, Li Z H, Qin Y, Jiang S Q, Xue F B, Yang J L, Xu R K, Jin Y J. 2010 Chin. Phys. B 19 075204

    [9]

    Sheng L, Wei F L, Lü M, Wang K L, Qiu A C, Hei D W, Qiu M T, Yuan Y, Zhao J Z, Wang P W 2006 High Power Laser and Particle Beams 18 1936 (in Chinese) [盛 亮、魏福利、吕 敏、王奎禄、邱爱慈、黑东炜、邱孟通、袁 媛、赵吉祯、王培伟 2006 强激光与粒子束 18 1936]

    [10]

    Qiu M T, Lü M, Wang K L, Hei D W, Qiu A C, Zeng Z Z, Du J Y, Kuai B, Yuan Y, Tian H, Sun F R, Luo J H 2003 High Power Laser and Particle Beams 15 101 (in Chinese) [邱孟通、吕 敏、王奎禄、黑东炜、邱爱慈、曾正中、杜继业、蒯 斌、袁 媛、田 慧、孙凤荣、罗建辉 2003 强激光与粒子束 15 101]

    [11]

    Haines M G 1998 IEEE Transactions on Plasma Science 26 1275

    [12]

    Aleksandrov V V, Branitskii A V, Volkov G S, Grabovskii E V, Zurin M V, Nedoseev S L, Oleinik G M, Samokhin A A, Sasorov P V, Smirnov V P, Fedulov M V, Frolov I N 2001 Plasma Physics Reports 27 89

    [13]

    Duan Y Y, Guo Y H, Wang W S, Qiu A C 2004 Acta Phys Sin. 53 2654 (In Chinese) [段耀勇、郭永辉、王文生、邱爱慈 2004 物理学报 53 2654]

    [14]

    Salzmann Davis 1998 Atomic physics in hot plasmas (New York, USA: Oxford University Press)

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出版历程
  • 收稿日期:  2010-07-07
  • 修回日期:  2010-07-29
  • 刊出日期:  2011-05-15

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