Experimental study on imploding characteristics of wire-array Z pinches on Qiangguang-1 facility
Wang Zhen(王真)a)b), Xu Rong-Kun(徐荣昆)b), Yang Jian-Lun(杨建伦)b), Hua Xin-Sheng(华欣生)b), Li Lin-Bo(李林波)b), Xu Ze-Ping(许泽平)b), Ning Jia-Min(宁家敏)b), and Song Feng-Jun(宋凤军)b)
a Department of Engineering Physics, Tsinghua University, Beijing 100084, China; b Institute of Nuclear Physics and Chemistry, Mianyang 621900, China
Abstract To investigate the imploding characteristics of cylindrical wire array, experiments with load current varying from 1.5 MA to 1.7 MA were carried out on the Qiangguang-1 facility. The complicated temporal-spatial distribution of x-ray radiation was measured by the one-dimensional (1D) x-ray imaging system. Other diagnostic equipments including the x-ray power meter (XRPM) and the time-integrated pinhole camera were used to record time-resolved x-ray power pulse and pinhole x-ray images. Analysis shows that the fast leading edge of the local x-ray radiation pulse is of primary importance in sharpening x-ray power pulse rather than the temporal synchrony and the spatial uniformity of implosion. Experimental results indicated that the better axial imploding synchrony, the faster the increase of x-ray power for an array consisting of 32 tungsten wires of 5$\mu$m diameter than for the others, and the higher the x-ray radiation power with maximal convergence ratio ($r_0/r_1$) of 10.5. A `zipper-like' effect of x-ray radiation extending from the anode to the cathode was also observed.
Received: 09 January 2006
Revised: 21 July 2006
Accepted manuscript online:
PACS:
52.58.Lq
(Z-pinches, plasma focus, and other pinch devices)
Wang Zhen(王真), Xu Rong-Kun(徐荣昆), Yang Jian-Lun(杨建伦), Hua Xin-Sheng(华欣生), Li Lin-Bo(李林波), Xu Ze-Ping(许泽平), Ning Jia-Min(宁家敏), and Song Feng-Jun(宋凤军) Experimental study on imploding characteristics of wire-array Z pinches on Qiangguang-1 facility 2007 Chinese Physics 16 772
Radiation characteristics and implosion dynamics of tungsten wire array Z-pinches on the YANG accelerator Huang Xian-Bin(黄显宾), Yang Li-Bing(杨礼兵), Li Jing(李晶), Zhou Shao-Tong(周少彤), Ren Xiao-Dong(任晓东), Zhang Si-Qun(张思群), Dan Jia-Kun(但加坤), Cai Hong-Chun(蔡红春), Duan Shu-Chao(段书超) , Chen Guang-Hua(陈光华), Zhang Zheng-Wei(章征伟), Ouyang Kai(欧阳凯), Jun Li(李军), Zhang Zhao-Hui(张朝辉), Zhou Rong-Guo(周荣国), and Wang Gui-Lin(王贵林) . Chin. Phys. B, 2012, 21(5): 055206.
X-ray observations of tungsten wire array Z-pinch implosions on QiangGuang-1 facility Zhang Fa-Qiang(章法强), Li Zheng-Hong(李正宏), Xu Ze-Ping(许泽平), Xu Rong-Kun(徐荣昆), Yang Jian-Lun(杨建伦), Guo Cun(郭存), Xia Guang-Xin(夏广新), Chen Jin-Chuan(陈进川), Song Feng-Jun(宋凤军), Ning Jia-Min(宁家敏), Wang Zhen(王真), Xue Fei-Biao(薛飞彪), Li Lin-Bo(李林波), Qin Yi(秦义), Ying Chun-Tong(应纯同), and Liu Guang-Jun(刘广均). Chin. Phys. B, 2006, 15(9): 2058-2064.
[10]
Study of tungsten wire array Z-pinch implosion on Qiang-Guang I facility Xu Rong-Kun (徐荣昆), Li Zheng-Hong (李正宏), Yang Jian-Lun (杨建伦), Xu Ze-Ping (许泽平), Ding Ning (丁宁), Guo Cun (郭存), Jiang Shi-Lun (蒋世伦), Ning Jia-Min (宁佳敏), Xia Guang-Xin (夏广新), Li Lin-Bo (李林波), Song Feng-Jun (宋风军), Chen Jin-Chuan (陈进川). Chin. Phys. B, 2005, 14(8): 1613-1617.
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