Smoothing of Nonuniformity by X-ray Radiation in Cannonball Target

Abstract
The geometrical smoothing effect of X-ray radiation propagating through a cavity between the tamper and the pusher in a cannonball target was investigated as a function of the pusher radius, and the maximum pusher radius required to obtain a density compression rate of 1000 was estimated. The reduction of the growth of Rayleigh-Taylor instability by the smoothing effect is discussed. The results are applied to the GEKKO XII and GEKKO MII laser systems.