| 单层钨丝阵Z箍缩内爆不稳定性特征实验研究 |
| |
| 引用本文： | 蒋树庆, 陈法新, 夏广新, 等. 单层钨丝阵Z箍缩内爆不稳定性特征实验研究[J]. 强激光与粒子束, 2013, 25: 3069-3072. doi: 10.3788/HPLPB20132511.3069 |
| |
| 作者姓名： | 蒋树庆 陈法新 夏广新 甯家敏 薛飞彪 李林波 叶繁 杨建伦 潘英俊 |
| |
| 作者单位： | 1.中国工程物理研究院 核物理与化学研究所, 四川 绵阳 621 900;;;2.重庆大学 光电技术及系统教育部重点实验室, 重庆 400044 |
| |
| 摘 要： | 基于激光阴影像，研究了直径为8 mm的钨丝阵在滞止阶段的不稳定性发展。实验结果表明，在消融阶段早期，不稳定性扰动的主导波长为0.2 mm。在内爆后期和滞止阶段，不稳定主导波长迅速向长波长方向发展。在功率峰值前后，扭曲不稳定性特征开始出现，在滞止等离子体柱达到最小收缩直径后，辐射功率出现了明显下降。
|
| 关 键 词： | 钨丝阵 Z箍缩 内爆不稳定性 |
| 收稿时间： | 2013-01-15 |
| 修稿时间： | 2013-04-01 |
Experimental study of implosion instability characteristics in imploding single tungsten wire array Z-pinches |
| |
| Jiang Shuqing, Chen Faxin, Xia Guangxin, et al. Experimental study of implosion instability characteristics in imploding single tungsten wire array Z-pinches[J]. High Power Laser and Particle Beams, 2013, 25: 3069-3072. doi: 10.3788/HPLPB20132511.3069 |
| |
| Authors: | Jiang Shuqing Chen Faxin Xia Guangxin Ning Jiamin Xue Feibiao Li Linbo Ye Fan Yang Jianlun Pan Yingjun |
| |
| Affiliation: | 1. Institute of Nuclear Physics and Chemistry,CAEP,P.O.Box 919-212,Mianyang 621900,China;;;2. Key Laboratory of Optoelectronic Technology and System,Ministry of Education,Chongqing University,Chongqing 400044,China |
| |
| Abstract: | Experimental results of instability developments of 8 mm tungsten wire array Z-pinches on the 1.5 MA level, 100 ns rise-time Qiangguang-Ⅰfacility are presented. The dominated instability wavelength for imploding 8 mm wire arrays in early ablation regime is (0.20.03) mm, and it grows up to longer wavelength in later implosion and stagnation regime. An m=1 kink, when observed, is always on all frames obtained after peak power. Thus there may be some relation between the occurrence of m=1 and the termination of the rapid rise of the power pulse. |
| |
| Keywords: | tungsten wire array Z-pinch implosion instability |
|
| 点击此处可从《强激光与粒子束》浏览原始摘要信息 |
|
点击此处可从《强激光与粒子束》下载免费的PDF全文 |
