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	Experimental study on K-shell radiation production of aluminum wire array Z-pinch at Qiangguang-I facility
	Wu Gang ; Qiu Ai-Ci ; Lu Min ; Kuai Bin ; Wang Liang-Ping ; Cong Pei-Tian ; Qiu Meng-Tong ; Lei Tian-Shi ; Sun Tie-Ping ; Guo Ning ; Han Juan-Juan ; Zhang Xin-Jun ; Huang Tao ; Zhang Guo-Wei ; Qiao Kai-Lai
	2010-10-12 ; 2010-10-12
关键词	aluminum wire array Z-pinch K-shell radiation trailing mass PLASMA RADIATION ATOMIC-NUMBER Z-ACCELERATOR IMPLOSIONS EMISSION VELOCITY Physics, Multidisciplinary
中文摘要	Experimental study of aluminum wire array Z-pinch was conducted on Qiangguang-I facility (1.5 MA, 80 ns) to produce - 1.7 keV characteristic X-ray radiation. With fixed wire diameter of 20 mu m and annular diameter of 12 mm, K-shell yield up to 0.9 kJ/cm and 1.1 kJ/cm was obtained for wire number N = 8 and N = 12 arrays, respectively, which are much higher than that for N = 16 and N = 24 loads. X-ray power waveforms and time-resolved images showed that several implosions occurred due to the existence of trailing mass. During 60%-80% of the whole implosion time, the wire array almost stayed at its initial position rather than running inwards. Main implosion was completed in the next 25-30 ns, with parts of load mass left behind and forming so-called trailing mass. At later time of main implosion, load current was transferred to trailing mass left in outer radii, and caused secondary even tertiary implosion, which also contributed to total K-shell yield. Appearance of trailing mass might be caused by azimuthally correlated axial modulation, consisting of hot spots and gaps on wire plasma column, as well as the development of other inhomogeneities.
语种	中文 ; 中文
出版者	CHINESE PHYSICAL SOC ; BEIJING ; P O BOX 603, BEIJING 100080, PEOPLES R CHINA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/78836]
专题	清华大学
推荐引用方式 GB/T 7714	Wu Gang,Qiu Ai-Ci,Lu Min,et al. Experimental study on K-shell radiation production of aluminum wire array Z-pinch at Qiangguang-I facility[J],2010, 2010.
APA	Wu Gang.,Qiu Ai-Ci.,Lu Min.,Kuai Bin.,Wang Liang-Ping.,...&Qiao Kai-Lai.(2010).Experimental study on K-shell radiation production of aluminum wire array Z-pinch at Qiangguang-I facility..
MLA	Wu Gang,et al."Experimental study on K-shell radiation production of aluminum wire array Z-pinch at Qiangguang-I facility".(2010).

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