物理学报2012，Vol.61Issue(19)：330-336,7.
“强光一号”锥形丝阵内爆特性研究
Implosion characteristics of conical wirearray Z pinches on "Qiangguangl" facility
摘要
Abstract
Implosion and radiation characteristics of conical wire array in different regimes of implosion are investigated at the 1 MA Qiangguang-1 facility by X-ray self-emission diagnostics. Experimental results show that the shape of precursor plasma is also conical. The initial implosion takes place near the cathode by a stronger Lorenz force, forming a triangle-like structure that produces harder X ray. The current crossing the bubble in the front of the wire array near the anode persists in persist ablating, thereby leading to a zippered stagnation. The initial implosion of a bubble near the cathode is followed by the implosion zippering upwards as the zipper implosion speed is 2.59× 107 cm/s. The results shows that the conical array has a broader X-ray power pulse than cylinderical wire array due to the zippered stagnation and zippered implosion of the array. The study of implosion characteristics of specialized axis symmetric wire array Z-pinch-like conical wire array can provide a valuable test bed for understanding the regime of implosion as well as theoretical model and magneto-hydrodynamic (MHD) codes, both of which primarily develop for the modeling of cylindrical wire array Z pinches.关键词
锥形丝阵Z箍缩/拉链内爆/拉链滞止/波形调制Key words
conical wire array Z-pinches/zippered stagnation/zippered implosion/pulse shaping分类
数理科学引用本文复制引用
蒋树庆,叶繁,杨建伦,夏广新,章法强,李正宏,徐荣昆,许泽平,潘英俊..“强光一号”锥形丝阵内爆特性研究[J].物理学报,2012,61(19):330-336,7.基金项目
国家自然科学基金（批准号：10635050,11005096）、中国工程物理研究院科学发展基金（批准号：2010B0102012）和核物理与化学研究所科技创新基金（批准号：2011CX03）资助的课题.感谢中国工程物理研究院核物理与化学研究所王真博士、高启博士、储衍运博士,北京应用物理与计算数学研究所丁宁研究员、肖德龙博士、黄俊博士提供的帮助和有益讨论. （）
