Penetration of an azimuthal magnetic flux during the implosion of a doubleliner

In recent years, double liners have gained widespread application in inerti al confinement fusion. When the outer shell, accelerated by a high current, collides with the inner liner, the conditions for irradiating nuclear-fusi on targets can be created in the inner cavity of the latter (the so-called dynamic hohlraum). In this situation, the question of whether the azimuthal magnetic flux can penetrate the outer-liner plasma before the liners colli de is of great importance. In experiments described in this study, the pene tration of the magnetic nux into the gap between the liners during the impl osion of the outer shell was recorded by the presence of the current in a c ylindrical shunt mounted in place of the inner liner. The theoretical conce pt of a double liner is verified experimentally: it is shown that the magne tic flux does not penetrate into the inner region before the collision. Exp eriments were carried out in the Angara-5-1 facility.