Rayleigh-Taylor Instability in Nonuniform Pellet of Inertial Confinement Fusion

Abstract
In the imploding pellet of the inertial confinement fusion (ICF), the Rayleigh-Taylor (R-T) instability caused by the accelerating compression takes place at various places of the pellet. The effects of the nonuniform compression and the intrinsic nonuniformity of the pellet are investigated for the R-T instability. The analysis shows that the growth rate of the R-T instability remains unchanged within the first order of the ratio between the scale length of perturbations and of the nonuniformity.

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