Measurements of magneto-Rayleigh-Taylor instability growth during the implosion of initially solid Al tubes driven by the 20-MA, 100-ns Z facility.
Measurements of magneto-Rayleigh-Taylor instability growth during the implosion of initially solid Al tubes driven by the 20-MA, 100-ns Z facility.
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DOI：
10.1103/physrevlett.105.185001
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发表时间：
2010-10
影响因子：
8.6
通讯作者：
D. Sinars;S. Slutz;M. Herrmann;R. Mcbride;M. Cuneo;K. Peterson;R. Vesey;C. Nakhleh;B. Blue
中科院分区：
文献类型：
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作者：
D. Sinars;S. Slutz;M. Herrmann;R. Mcbride;M. Cuneo;K. Peterson;R. Vesey;C. Nakhleh;B. Blue
报道了第一个测量快Z箍缩等离子体中磁瑞利-泰勒不稳定性增长的受控实验。利用波长为25-400 μm的正弦扰动在初始为固体的铝管（内衬）的表面上播种不稳定性。分辨率为15 μm的射线照片捕捉到了外衬表面的演变。与数值辐射磁流体动力学模拟的比较表明，在50 μm波长下具有非常好的一致性。
The first controlled experiments measuring the growth of the magneto-Rayleigh-Taylor instability in fast (∼100 ns) Z-pinch plasmas are reported. Sinusoidal perturbations on the surface of an initially solid Al tube (liner) with wavelengths of 25-400 μm were used to seed the instability. Radiographs with 15 μm resolution captured the evolution of the outer liner surface. Comparisons with numerical radiation magnetohydrodynamic simulations show remarkably good agreement down to 50 μm wavelengths.