RAYLEIGH-TAYLOR INSTABILITY AND K-RADIATION YIELD IN THE IMPLOSION OFTHE GAS-PUFFS

The dependence of the argon K-line radiation yield on the gas-puff mas s was studied, Experiments were carried out with the inductive storage GIT-4. The working gas was argon; the gas-puff diameter was 3 - 8 cm, Discontinuities arising in the gas shell due to short wave-length mod es of the Rayleigh-Taylor instability lead to a complete disappearance of the argon K-line radiation in gas-puffs with small mass. The class ical expression for the RT-instability growth rate is shown to be inap plicable in treating the obtained dependence of the amplitude of pertu rbations arising during instability on the gas-puff mass, It is also s hown, that the gas-puff implosion is accompanied by the growth of unst able volume modes, and gas-puff stability depends on scale lengths of particle density and magnetic field variations in the gas-puff substan ce.