Two-dimensional implosion of liners
Two-dimensional implosion of liners
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DOI：
10.1063/1.873484
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发表时间：
1999-04
影响因子：
2.2
通讯作者：
I. Lisitsyn;S. Katsuki;H. Akiyama
中科院分区：
文献类型：
--
作者：
I. Lisitsyn;S. Katsuki;H. Akiyama
研究了二维药型罩内爆问题。这代替了传统的Z箍缩的一维圆柱形内爆，在传统的一维圆柱形内爆中，存在具有圆柱形形状和沿z轴沿着均匀质量分布的线阵列或喷气衬里。二维Z箍缩压缩可以利用球形线阵列或具有沿z轴沿着的特殊质量分布的双喷气衬垫来实现。计算机模拟结果表明，两种药型罩都可以在z和r方向上压缩。这导致放置在内衬内的球形动态空腔的均匀和高功率加热。球形的二维内衬内爆增加了黑腔表面的功率密度，改善了胶囊辐照的对称性，并有助于部分淬灭瑞利-泰勒不稳定性。
A two-dimensional implosion of liners is studied. This is instead of the conventional one-dimensional cylindrical implosion of Z pinches, where there is a wire array or a gas-puff liner, which has a cylindrical shape and an uniform mass distribution along the z axis. Two-dimensional Z-pinch compression can be realized utilizing either a spherically shaped wire array or a double gas-puff liner with a special mass distribution along the z-axis. The results obtained from computer simulations show that both kinds of liners can be compressed in both the z and the r directions. This results in a uniform and a high-power heating of the spherical dynamic hohlraum placed inside the liner. The spherical, two-dimensional liner implosion increases the power density at the hohlraum surface, improves the symmetry of the capsule irradiation and helps partially in quenching of the Rayleigh–Taylor instability.