Laser-matter interaction in cluster medium in the radiation dominated regime
Laser-matter interaction in cluster medium in the radiation dominated regime
复制标题
辐射主导区域中簇介质中的激光与物质相互作用
DOI：
10.1088/1742-6596/688/1/012038
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
and Y. Fukuda
中科院分区：
文献类型：
--
作者：
N. Iwata;Y. Kishimoto;R. Matsui;and Y. Fukuda
利用粒子积分程序EPIC 3D研究了1022 -24 W/cm 2强激光与团簇介质的相互作用.通过引入四个质量相同，即填充率相同，但内部结构不同的靶，研究了团簇对加速动力学的影响，并与薄膜靶进行了比较。在辐射压主导的区域，由于库仑爆炸的额外加速，团簇介质表现出比简单活塞机制更高的最大能量。发现离子加速的最佳团簇半径依赖于照射的激光功率。
We study the interaction between laser and cluster medium in high intensity regime 10 22-24 W/cm 2 using a particle based integral code (EPIC3D). By introducing four targets consisting of the same mass, ie same packing fraction, but having different internal structure, we investigate the effect of cluster on the acceleration dynamics comparing with that of thin film. In the radiation pressure dominated regime, the cluster medium exhibits a higher maximum energy than that achieved by the simple piston mechanism due to the additional accerelation by the Coulomb explosion. The optimum cluster radius for ion acceleration is found to exist depending on the laser power irradiated.