惯性聚变实验中泡沫填充黑腔的特性研究
Characterization of foam-filled hohlraums for inertial fusion experiments
AI总结：
本文研究惯性聚变实验中泡沫填充黑腔的特性，发现低密度SiO2泡沫能有效抑制黑腔壁运动，且激光背向散射水平与气体填充相当。
摘要：
在高增益惯性约束聚变点火之路上，人们正考虑使用泡沫来抑制黑腔壁运动，并缓解受激拉曼散射（SRS）和受激布里渊散射（SBS）引起的激光背向散射。本文报告了在OMEGA激光装置上开展的泡沫填充黑腔实验活动的结果。密度低至1 mg/cm3的SiO2泡沫填充成功减少了金壁膨胀，且激光背向散射与气体填充相当。
英文摘要：
On the path towards high-gain inertial confinement fusion ignition, foams are being considered to tamp the hohlraum wall-motion, and mitigate laser backscattering from Stimulated Raman Scattering (SRS) and Stimulated Brillouin Scattering (SBS). Here we present the results from an experimental campaign on foam-filled hohlraums conducted at the OMEGA laser facility. SiO2 foam-fills, with densities as low as 1 mg/cm3, successfully reduce the gold wall expansion, with laser backscattering comparable to gas-fill.
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