The investigation of rayleigh-taylor instability growth rate in inertial confinement fusion

Because the Rayleigh-Taylor instability (RTI) growth rate in inertial confinement fusion (ICF) is so important and critical for determining the required driver energy, many attempts have been made over the years to drive it analytically. In this paper, the growth rates of the acceleration and deceleration -phase Rayleigh-Taylor instability for imploding inertial confinement fusion targets are calculated analytically and numerically. Also, the effects of different physical parameters on RTI are investigated. For this purpose, we have calculated the growth rate, growth factor and ablation mode for outer surface and also inner surface of fuel pellet. (author)