用X-pinch对双丝Z箍缩进行轴向X射线背光照相

赵屾; 朱鑫磊; 石桓通; 邹晓兵; 王新新

doi:10.7498/aps.64.015203

摘要

利用PPG-1脉冲电流源(400 kA, 100 ns), 同时驱动X-pinch和双丝Z箍缩负载. 用X-pinch作为X射线源, 对双丝Z箍缩进行了轴向背光照相的初步实验. 得到了双丝Z箍缩在r-θ 平面上随时间演化的图像, 观察到了丝阵Z箍缩所有早期过程, 包括丝芯膨胀、冕层等离子体产生、等离子体向丝阵中心的运动、先驱等离子体形成. 利用阶跃光楔滤片, 对上述背光图像进行了等离子体质量面密度的标定, 首次得到了在r-θ平面上双丝Z箍缩等离子体质量面密度的时空分布图像.

关键词:

Abstract

The axial backlighting of two-wire Z-pinch using an X-pinch as an X-ray source was conducted on PPG-1, a pulsed power generator with a current of 400 kA in amplitude and 100 ns in pulse width. Its time-resolved axial backlighting images are obtained. In the backlighting images all the physical processes similar to those occurring in the early stage of the wire-array Z-pinch are observed, including the expansion of the high-density wire core surrounded by low-density coronal plasmas, the motion of the coronal plasma toward the axis of the wire-array, and the formation of precursor plasma. The areal mass density of the plasma shown in the backlighting images is calibrated with step-wedge filters. And the time-resolved radial distributions of the areal mass density of the plasma from the two-wire Z-pinch are obtained.

Keywords:

作者及机构信息

1.
清华大学电机系, 北京 100084

基金项目: 国家自然科学基金(批准号: 51177086, 11135007, 51237006)资助的课题.

Authors and contacts

1.
Department of Electrical Engineering, Tsinghua University, Beijing 100084, China

Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 51177086, 11135007, 51237006).

参考文献

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[2]	Volkov G S, Grabovskii E V, Zurin M V, Mitrofanov K N, Oleinik G M, Porofeev I Y 2003 Instrum. Exp. Tech. (USSR) 47 376
[3]	Huang J, Sun S K, Xiao D L, Ding N, Ning C, Zhang Y, Xue C 2010 Acta Phys. Sin. 59 6531 (in Chinese) [黄俊, 孙顺凯, 肖德龙, 丁宁, 宁成, 张扬, 薛创 2010 物理学报 59 6531]
[4]	Zhang Y, Ding N 2008 Chin. Phys. B 17 2994
[5]	Zeng Z Z, Qiu A C 2004 Chin. Phys. B 13 201
[6]	Kalantar D H, Hammer D A 1995 Rev. Sci. Instrum 66 779
[7]	Lebedev S V, Beg F N, Bland S N, Chittenden J P, Dangor A E, Haines M G, Zakaullah M 2001 Rev. Sci. Instrum 72 671
[8]	Shelkovenko T A, Pikuz S A, Hammer D A, Dimant Y S, Mingaleeva A R 1999 Phys. Plasmas 6 2840
[9]	Shelkovenko T A, Sinars D B, Pikuz S A, Hammer D A 2001 Phys. Plasmas 8 1305
[10]	Zhang R, Zhao T, Zou X B, Wang X X, Zhao Y C, Du Y Q 2010 High Power Laser Part. Beams 22 931 (in Chinese) [张然, 赵彤, 邹晓兵, 王新新, 赵勇超, 杜彦强 2010 强激光与离子束 22 931]
[11]	Zhu X L, Zhang R, Luo H Y, Zhao S, Zou X B, Wang X X 2012 High Power Laser Part. Beams 24 539 (in Chinese) [朱鑫磊, 张然, 罗海云, 赵屾, 邹晓兵, 王新新 2012 强激光与离子束 24 539]
[12]	Zhao T, Zou X B, Wang X X, Zhao Y C, Du Y Q, Zhang R, Liu R 2010 IEEE Trans. Plasma Sci 38 646
[13]	Liu R, Zou X B, Wang X X, Zeng N G, He L Y 2008 Laser Part. Beams 26 455
[14]	Liu R, Wang X X, Zou X B, Zeng N G, He L Y 2008 Europhys. Lett. 83 25002
[15]	Zhao T, Zou X B, Zhang R, Wang X X 2010 Chin. Phys. B 19 075205
[16]	Blesener I C, Greenly J B, Pikuz S A, Shelkovenko T A, Vishniakou S, Hammer D A, Kusse B R 2009 Rev. Sci. Instrum 80 123505
[17]	Zou X B, Liu R, Zeng N G, Han M, Yuan J Q, Wang X X, Zhang G X 2006 Laser Part. Beams 24 503

施引文献

[1]	Matzen M K, Sweeney M A, Adams R G, Asay J R, Bailey J E, Bennett G R 2005 Phys. Plasmas 12 055503
[2]	Volkov G S, Grabovskii E V, Zurin M V, Mitrofanov K N, Oleinik G M, Porofeev I Y 2003 Instrum. Exp. Tech. (USSR) 47 376
[3]	Huang J, Sun S K, Xiao D L, Ding N, Ning C, Zhang Y, Xue C 2010 Acta Phys. Sin. 59 6531 (in Chinese) [黄俊, 孙顺凯, 肖德龙, 丁宁, 宁成, 张扬, 薛创 2010 物理学报 59 6531]
[4]	Zhang Y, Ding N 2008 Chin. Phys. B 17 2994
[5]	Zeng Z Z, Qiu A C 2004 Chin. Phys. B 13 201
[6]	Kalantar D H, Hammer D A 1995 Rev. Sci. Instrum 66 779
[7]	Lebedev S V, Beg F N, Bland S N, Chittenden J P, Dangor A E, Haines M G, Zakaullah M 2001 Rev. Sci. Instrum 72 671
[8]	Shelkovenko T A, Pikuz S A, Hammer D A, Dimant Y S, Mingaleeva A R 1999 Phys. Plasmas 6 2840
[9]	Shelkovenko T A, Sinars D B, Pikuz S A, Hammer D A 2001 Phys. Plasmas 8 1305
[10]	Zhang R, Zhao T, Zou X B, Wang X X, Zhao Y C, Du Y Q 2010 High Power Laser Part. Beams 22 931 (in Chinese) [张然, 赵彤, 邹晓兵, 王新新, 赵勇超, 杜彦强 2010 强激光与离子束 22 931]
[11]	Zhu X L, Zhang R, Luo H Y, Zhao S, Zou X B, Wang X X 2012 High Power Laser Part. Beams 24 539 (in Chinese) [朱鑫磊, 张然, 罗海云, 赵屾, 邹晓兵, 王新新 2012 强激光与离子束 24 539]
[12]	Zhao T, Zou X B, Wang X X, Zhao Y C, Du Y Q, Zhang R, Liu R 2010 IEEE Trans. Plasma Sci 38 646
[13]	Liu R, Zou X B, Wang X X, Zeng N G, He L Y 2008 Laser Part. Beams 26 455
[14]	Liu R, Wang X X, Zou X B, Zeng N G, He L Y 2008 Europhys. Lett. 83 25002
[15]	Zhao T, Zou X B, Zhang R, Wang X X 2010 Chin. Phys. B 19 075205
[16]	Blesener I C, Greenly J B, Pikuz S A, Shelkovenko T A, Vishniakou S, Hammer D A, Kusse B R 2009 Rev. Sci. Instrum 80 123505
[17]	Zou X B, Liu R, Zeng N G, Han M, Yuan J Q, Wang X X, Zhang G X 2006 Laser Part. Beams 24 503

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