Polar drive on OMEGA
Polar drive on OMEGA
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OMEGA 的 Polar 驱动器
DOI：
10.1051/epjconf/20135902013
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
S. Skupsky
中科院分区：
文献类型：
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作者：
P. Radha;F. Marshall;T. Boehly;T. Collins;R. Craxton;D. Edgell;R. Epstein;J. Frenje;V. Goncharov;J. Marozas;R. Mccrory;P. McKenty;D. Meyerhofer;R. Petrasso;T. Sangster;A. Shvydky;S. Skupsky
高会聚极驱动实验正在OMEGA（T。R. Boehly等人，选择Commum。133，495（1997））。OMEGA实验的目标是验证斜激光沉积、日冕中非径向热梯度存在下的热传导以及激光-等离子体相互作用（如交叉光束能量传递）存在下的内爆能量学的建模。赤道附近的模拟冲击波速度，光束是倾斜入射，在温暖的塑料壳实验推断值的5%以内，以及点火所需的精度。高，近一维的面密度，获得在温暖的塑料壳内爆。压缩核心的模拟背光图像与测量图像吻合良好。未来将解决的突出问题涉及交叉束传输在极驱动照射中的作用，以及通过降低束流密度来增加耦合到靶中的能量。
High-convergence polar-drive experiments are being conducted on OMEGA (T. R. Boehly et al., Opt. Commum. 133, 495 (1997)) using triple-picket laser pulses. The goal of OMEGA experiments is to validate modeling of oblique laser deposition, heat conduction in the presence of nonradial thermal gradients in the corona, and implosion energetics in the presence of laser-plasma interactions such as crossed-beam energy transfer. Simulated shock velocities near the equator, where the beams are obliquely incident, are within 5% of experimentally inferred values in warm plastic shells, well within the required accuracy for ignition. High, near-one-dimensional areal density is obtained in warm-plastic-shell implosions. Simulated backlit images of the compressing core are in good agreement with measured images. Outstanding questions that will be addressed in the future relate to the role of cross-beam transfer in polar drive irradiation and increasing the energy coupled into the target by decreasing beam obliquity.
DOI：
10.1063/1.2856551
发表时间：
2007-11
期刊：
Bulletin of the American Physical Society
影响因子：
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作者：
通讯作者：
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