“神光Ⅱ”上冲击波法测量黑腔辐射温度  

Measurement of Radiation Temperature in Hohlraum with Shock Wave Method on 'Shenguang Ⅱ' Laser Facility

作　　者：江少恩[1] 李文洪[1] 孙可煦[1] 蒋小华[1] 刘永刚[1] 崔延莉[1] 陈久森[1] 丁永坤[1] 郑志坚[1] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川绵阳621900

出　　处：《高压物理学报》2005年第4期289-292,共4页Chinese Journal of High Pressure Physics

基　　金：中国工程物理研究院科学技术基金(20030214);高温高密度等离子体物理重点实验室基金(51480020103ZS7701)

摘　　要：在“神光Ⅱ”三倍频装置上,由黑腔产生的辐射驱动铝台阶样品产生冲击波,采用光学条纹相机测量冲击波速度,利用冲击波速度与黑腔辐射温度的定标关系,获得了与软X光能谱仪测量相一致的辐射温度;采用热波关系和能量守恒原理对辐射温度进行了分析,计算结果与实验结果一致。The D shaped cavity has been used to measure the radiation temperature in Hollraum on ‘Shenguang Ⅱ＇ laser facility. The radiation temperature was measured using two methods. One method measured the shock wave velocity produced in low-Z materials such as Al driven by the emission from hohlraum. The shock velocity was detected using optical streaked camera to observe the optical signal emitted from the rear of a step Al placed over a hole in the cavity wall. The second method measured the re-radiated X-ray flux from the cavity wave viewing through another hole in the cavity with soft X-ray spectrometer. Both methods have been shown to provide a consistent characterization of the X-ray drive in the cavity target. The experimental results were analyzed using a model that was based on heat wave similarity and energy conversation law.

关 键 词：D形腔 黑腔靶 辐射温度 冲击波 软X光能谱仪 

分 类 号：O536[理学—等离子体物理] O347.5[理学—物理]