Suppression of the Rayleigh-Taylor instability due to self-radiation in a multiablation target.
Suppression of the Rayleigh-Taylor instability due to self-radiation in a multiablation target.
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DOI：
10.1103/physrevlett.92.195001
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发表时间：
2004-05
影响因子：
8.6
通讯作者：
S. Fujioka;A. Sunahara;K. Nishihara;N. Ohnishi;T. Johzaki;H. Shiraga;K. Shigemori;M. Nakai;T. Ikegawa;M. Murakami;K. Nagai;T. Norimatsu;H. Azechi;T. Yamanaka
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文献类型：
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作者：
S. Fujioka;A. Sunahara;K. Nishihara;N. Ohnishi;T. Johzaki;H. Shiraga;K. Shigemori;M. Nakai;T. Ikegawa;M. Murakami;K. Nagai;T. Norimatsu;H. Azechi;T. Yamanaka
研究了直接驱动惯性聚变靶的瑞利-泰勒不稳定性抑制方案。在高Z掺杂塑料靶中，两个烧蚀表面分别形成-一个由热辐射驱动，另一个由电子传导驱动。由于靶内的辐射烧蚀表面具有较大的烧蚀速度和较长的密度尺度长度，瑞利-泰勒不稳定性的增长被显著抑制。在模拟和实验中使用溴化塑料目标观察到的增长率显着降低。利用该方案设计了一种新型的直接驱动弹丸。
A scheme to suppress the Rayleigh-Taylor instability has been investigated for a direct-drive inertial fusion target. In a high-Z doped-plastic target, two ablation surfaces are formed separately-one driven by thermal radiation and the other driven by electron conduction. The growth of the Rayleigh-Taylor instability is significantly suppressed on the radiation-driven ablation surface inside the target due to the large ablation velocity and long density scale length. A significant reduction of the growth rate was observed in simulations and experiments using a brominated plastic target. A new direct-drive pellet was designed using this scheme.