Directly driven Rayleigh–Taylor instability of modulated CH targets

doi:10.1088/1674-1056/21/9/095202

Abstract Directly driven ablative Rayleigh-Taylor (R-T) instability of modulated CH targets was studied using the face-on X-ray radiography on the Shen-Guang II device. We obtained temporal evolution images of the R-T instability perturbation. The R-T instability growth factor has been obtained by using the methods of fast Fourier transform and seeking difference of light intensity between the peak and the valley of the targets. Through comparing with the the theoretical simulation, we found that the experimental data had a good agreement with the theoretical simulation results before 1.8 ns, and was lower than the theoretical simulation results after that.

Keywords: Rayleigh-Taylor hydrodynamic instability Fourier analysis theoretical simulation

Received: 21 June 2011
Revised: 24 April 2012
Accepted manuscript online:

PACS:	52.57.-z	(Laser inertial confinement)
	02.30.Nw	(Fourier analysis)
	02.60.Cb	(Numerical simulation; solution of equations)

Corresponding Authors: Dong Jia-Qin
E-mail: dongjiaqin@hotmail.com

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Jia Guo (贾果), Xiong Jun (熊俊), Dong Jia-Qin (董佳钦), Xie Zhi-Yong (谢志勇), Wu Jiang (吴江) Directly driven Rayleigh–Taylor instability of modulated CH targets 2012 Chin. Phys. B 21 095202

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Directly driven Rayleigh–Taylor instability of modulated CH targets

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