Abstract

A technique has been developed to characterize the doping concentration distribution of inertial confinement fusion capsules based on a method combining absorption retrieval, computerized tomography, and a gradient doping absorption model. The doping concentration distribution in a reconstructed slice of Si-doped capsules was obtained using this method and on average is in good agreement with contact radiography by comparison experiments. The established technique has been used to obtain a three-dimensional point cloud of the doping concentration distribution by reconstructing all of the slices for the doping capsules. Uncertainty of the doping concentration was analyzed, and the expanded uncertainty is approximately 0.1 at. % (K = 2).

摘要

基于结合吸收检索，计算机断层扫描和梯度掺杂吸收模型的方法，已经开发出一种技术来表征惯性约束聚变胶囊的掺杂浓度分布。使用该方法获得了在重构的硅掺杂胶囊的切片中的掺杂浓度分布，并且通过比较实验，平均而言其与接触射线照相法良好地吻合。已建立的技术已用于通过重建所有用于掺杂胶囊的切片来获得掺杂浓度分布的三维点云。分析了掺杂浓度的不确定度，扩展的不确定度约为0.1 at。％（K = 2）。