Mitigating wall plasma expansion and enhancing x-ray emission by using multilayer gold films as hohlraum material
Mitigating wall plasma expansion and enhancing x-ray emission by using multilayer gold films as hohlraum material
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DOI：
10.1088/1741-4326/ac04f5
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发表时间：
2021-05
期刊：
影响因子：
3.3
通讯作者：
Jinhua Zheng;L. Kuang;Shaoen Jiang;Lu Zhang;Hang Li;Feng Wang
中科院分区：
文献类型：
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作者：
Jinhua Zheng;L. Kuang;Shaoen Jiang;Lu Zhang;Hang Li;Feng Wang
设计了用于惯性约束核聚变的热腔的多层膜结构。它类似于低密度泡沫材料，但更容易制造和更灵活地改变其等效密度。激光烧蚀平面目标的模拟和实验表明，与固体金相比，多层金薄膜的等离子体膨胀减轻，x射线通量增加。激光光斑向内移动，其速度可以通过调节薄膜之间的间隙来控制。
Multilayer film structure is designed for hohlraum used in inertial confinement fusion. It is similar to low density foam material but easier to be fabricated and more flexible to change its equivalent density. Simulations and experiment of laser ablated planar targets reveal that, compared with solid gold, plasma expansion of multilayer gold films is mitigated and the x-ray flux is increased. The laser spot moves inwards and its speed can be controlled by adjusting the gaps between films.