【摘要】 介绍了用于惯性约束聚变 ( ICF)等离子体诊断的取样成像扫描分幅技术的原理 ,分析了该分幅技术的有关特性参数 ,如曝光时间、画幅数目、空间分辨率等。借助于特别设计的扫描变像管进行了该技术的原理性实验 ,并利用计算机数字图像处理技术进行图像的重构。实验获得了持续时间约1 0 0 ps的发光过程的 1 6幅图像 ,曝光时间优于 6.3 ps,阴极上空间分辨率为 3 .5lp/ mm。更多还原

【Abstract】 The technique of sampling ima ge streaking frame for plasma diagnostics in ICF is presented. Theoretical analysi s of this technique, including its exposures time, framing rate and spatial reso lution is given. A specially designed streak image tube, together with an active passive mode locked YAG laser is used to make a preliminary proof of princi p le experiment. And by means of digital image processing the experiment result gi ves 16 frames with an exposure time of better than 6.3ps and spatial resolution of 3.5 lp/mm in the photocathode.更多还原