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251 / 2023-04-21 09:31:41
Three-dimensional reconstruction of hot-spot self-emission
drive symmetry，hot-spot emission，3D reconstruction，Kirkpatrick-Baez(KB) X-ray microscope
惯性约束聚变物理学 > 惯性约束聚变物理学-海报
摘要录用
建军 董 / 中国工程物理研究院激光聚变研究中心
 In ICF study ,the implosion is very important which concerns too many physical process ans is the research emphasis. The hot-spot state,temperature and density are the critical quantity to estimate the ignition threshold. In addition, the hot-spot state also reveal performance of drive symmetry. The analysis of symmetry is the important means to tune the implosion compression. The 2D X-ray imaging is used to measure the hot-spot self-emission. The symmetrical feature is obtained by using post-processing with X-ray images which characters the symmetry of driving and can be used to offer the experimental references. However the hot-spot is the 3D X-ray emitter. The comprehensive analysis of 3D emission and symmetrical information of hot-spot contain more information than by only using 2D X-ray image of hot-spot.  Therefore, the diagnosis of 3D emission of hot-spot is highly necessary. In experimenting we can only obtain the 2D emission of hot-spot. That is, the projections of hot-spot can be measured whit different directions. Multi-angle imaging is use to reconstruct the 3D of hot-spot self-emission with reconstruction algorithm. And overall compression of hot-spot can be obtained by these 3D reconstruction of hot-spot. In this paper we use high spatial-resolution Kirkpatrick-Baez(KB) X-ray microscope to measure hot-spot self-emission in two orthogonal directions and two x-ray images of hot-spot in two different energy region are obtained. The maximum likelihood reconstruction algorithm is used to reconstruct the 3D hot-spot emission. These 3D reconstruction images provide more information about the symmetry of compression of implosion and established the base for analysis of 3D compression of hot-spot. Fig1 shows the reconstruction of 3D hot-spot emission in two different energy region.

 
重要日期

  • 会议日期

    06月05日

    2023

    至

    06月09日

    2023

  • 04月30日 2023

    提前注册日期

  • 05月01日 2023

    摘要截稿日期

  • 05月01日 2023

    摘要录用通知日期

  • 05月01日 2023

    初稿截稿日期

  • 05月31日 2023

    注册截止日期

主办单位
等离子体物理重点实验室
北京师范大学天文系
承办单位
Matter and Radiation at Extremes期刊
中国工程物理研究院流体物理研究所
北京应用物理与计算数学研究所
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