Hybrid simulation of shock formation for super-Alfvénic expansion of laser ablated debris through an ambient, magnetized plasma
Hybrid simulation of shock formation for super-Alfvénic expansion of laser ablated debris through an ambient, magnetized plasma
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通过环境磁化等离子体对激光烧蚀碎片进行超阿尔芬尼克膨胀的激波形成的混合模拟
DOI：
10.1063/1.4819251
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发表时间：
2013
影响因子：
2.2
通讯作者：
C. Niemann
中科院分区：
文献类型：
--
作者：
S. E. Clark;D. Winske;D. Schaeffer;E. Everson;A. Bondarenko;C. Constantin;C. Niemann
二维混合模拟的垂直碰撞无冲击建模后，潜在的实验室条件下，可以达到的大型等离子体装置（LAPD）在加州大学，洛杉矶基础等离子体科学设施。kJ级1053 nm Nd：Glass Raptor激光器将用于消融LAPD中的碳靶，靶上能量为100-500 J。烧蚀的碎片离子将膨胀到周围的部分电离的氢或氦中。通过混合模拟进行参数研究，以确定可能导致冲击形成在未来的LAPD实验的条件。模拟结果沿着与分析耦合参数的比较。
Two-dimensional hybrid simulations of perpendicular collisionless shocks are modeled after potential laboratory conditions that are attainable in the LArge Plasma Device (LAPD) at the University of California, Los Angeles Basic Plasma Science Facility. The kJ class 1053 nm Nd:Glass Raptor laser will be used to ablate carbon targets in the LAPD with on-target energies of 100-500 J. The ablated debris ions will expand into ambient, partially ionized hydrogen or helium. A parameter study is performed via hybrid simulation to determine possible conditions that could lead to shock formation in future LAPD experiments. Simulation results are presented along with a comparison to an analytical coupling parameter.