Li Yaran, Ma Huanzhen, Chen Yifan, Li Zhengda, Wang Dongfang
Appl Opt. 2023 Aug 20;62(24):6472-6479. doi: 10.1364/AO.495914.
In inertial confinement fusion, high-precision x-ray imaging is crucial for understanding the states of matter under extreme conditions. To observe the target asymmetry during compression, multiple imaging spots with varying energy responses are necessary. However, integrating multiple imaging channels in a grazing incidence x-ray imaging scheme is challenging, and there is an urgent need for effective combination of multi-color and high-throughput diagnostics. This study presents a design method for a multi-channel integrated Wolter microscope with high spatial resolution, wide-band response, and high throughput. The basic optical configuration, adjustment method, and multi-channel integration scheme are discussed in detail. A 10 keV-class three-channel integrated Wolter microscope is proposed for verification, with an estimated spatial resolution better than 4.0 µm in a field of view of ±500µ. The peak response efficiencies for each imaging channel are calculated as 5.2×10 , 8.6×10 , and 2.2×10 , respectively.
在惯性约束聚变中，高精度X射线成像对于理解极端条件下的物质状态至关重要。为了在压缩过程中观察靶材的不对称性，需要多个具有不同能量响应的成像点。然而，在掠入射X射线成像方案中集成多个成像通道具有挑战性，并且迫切需要有效结合多色和高通量诊断技术。本研究提出了一种具有高空间分辨率、宽带响应和高通量的多通道集成沃尔特显微镜的设计方法。详细讨论了基本光学配置、调整方法和多通道集成方案。提出了一种用于验证的10keV级三通道集成沃尔特显微镜，在±500µ的视场中估计空间分辨率优于4.0µm。每个成像通道的峰值响应效率分别计算为5.2×10 、8.6×10 和2.2×10 。
