Radiation characteristics and implosion dynamics of tungsten wire array Z-pinches on the YANG accelerator

作     者：黄显宾 杨礼兵 李晶 周少彤 任晓东 张思群 但加坤 蔡红春 段书超 陈光华 章征伟 欧阳凯 李军 张朝辉 周荣国 王贵林 

作者机构：Institute of Fluid PhysicsChina Academy of Engineering Physics 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2012年第21卷第5期

页      面：410-417页

核心收录：

学科分类：07[理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 070204[理学-等离子体物理] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：Project supported by the National Natural Science Foundation of China (Grant No. 10635050) 

主　　题：Z-pinch tungsten wire array X-ray radiation implosion dynamics 

摘      要：We investigated the radiation characteristics and implosion dynamics of low-wire-number cylindrical tungsten wire array Z-pinches on the YANG accelerator with a peak current 0.8-1.1 MA and a rising time ～ 90 *** arrays are made up of（8-32）×5 μm wires 6/10 mm in diameter and 15 mm in *** highest X-ray power obtained in the experiments was about 0.37 TW with the total radiation energy ～ 13 kJ and the energy conversion efficiency ～ 9%（24×5 μm wires,6 mm in diameter）.Most of the X-ray emissions from tungsten Z-pinch plasmas were distributed in the spectral band of 100-600 eV,peaked at 250 and 375 *** dominant wavelengths of the wire ablation and the magneto-Rayleigh-Taylor instability were found and analyzed through measuring the time-gated self-emission and laser interferometric *** analyzing the implosion trajectories obtained by an optical streak camera,the run-in velocities of the Z-pinch plasmas at the end of the implosion phase were determined to be about（1.3-2.1）×10 7 cm/s.