Laser hole boring into overdense plasma and relativistic electron currents for fast ignition of ICF targets
Laser hole boring into overdense plasma and relativistic electron currents for fast ignition of ICF targets
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DOI：
10.1103/physrevlett.79.2686
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发表时间：
1997-10-06
影响因子：
8.6
通讯作者：
MeyerTerVehn, J
中科院分区：
文献类型：
--
作者：
Pukhov, A;MeyerTerVehn, J
通过二维细胞内粒子模拟研究了激光打孔和10倍临界密度等离子体中的相对论电子传输。在强度为 I-0 lambda(2) = 10(20) W cm(-2) mu m(2) 时，经过 200 个激光周期后，形成了深度为 12 lambda、直径为 3 lambda 的通道。激光驱动电子电流承载高达 40% 的入射激光功率。当穿透过密区域时，它在早期分裂成多个细丝，但随后被引导成单个磁化射流。这些功能对于惯性约束聚变 (ICF) 目标的快速点火至关重要。
Laser hole boring and relativistic electron transport into plasma of 10 times critical density is studied by means of 2D particle-in-cell simulation. At intensities of I-0 lambda(2) = 10(20) W cm(-2) mu m(2), a channel 12 lambda deep and 3 lambda in diameter has formed after 200 laser cycles. The laser driven electron current carries up to 40% of the incident laser power. When penetrating the overdense region, it breaks up into several filaments at early times, but is channeled into a single magnetized jet later on. These features are essential for fast ignition of targets for inertial confinement fusion (ICF).