This paper presents an exploration of potential mitigation methods for the gas fuel fill tube in Inertial Confinement Fusion (ICF) implosions at the National Ignition Facility (NIF), and the impact of hydrodynamic growth seeded from other target imperfections using a specialized low convergence implosion experiment. Enhanced x-ray self- emission of this experiment design allows the impact of hydrodynamic growth through the deceleration phase of the implosion to be examined.

Experiments are presented comparing the perturbation visible during the implosion deceleration that are seeded by the fill tube, through varying the initial geometry in otherwise similar implosions. We further extend the experiment to explore the impact of isolated high atomic number 'dots' of 5 and 20 µm diameter. These isolated dots are compared in two different ‘High Density Carbon’ ablator designs in a gold hohlraum. The experiment series finds a correlation to number of high frequency self-emission features observed in deceleration and degradation in total Deuterium-Deuterium neutron yield.

本文介绍了在国家点火设施（NIF）的惯性约束聚变（ICF）爆燃中使用气体燃料填充管的潜在缓解方法的探索，以及使用专门的低收敛爆破实验从其他目标瑕疵中汲取的流体动力增长的影响。通过本实验设计的增强型X射线自发射，可以检查通过内爆减速阶段的流体动力学增长的影响。

通过改变在其他相似内爆中的初始几何形状，提出了实验，以比较内爆减速期间由填充管播种的可见扰动。我们进一步扩展了实验，以探索直径为5和20 µm的孤立高原子序数“点”的影响。将这些孤立的点在金制球磨中的两种不同“高密度碳”烧蚀器设计中进行比较。该实验系列发现与在氘-氘中子总产量的减速和降解中观察到的高频自发射特征的数量相关。