Study of the shell's large-scale asymmetry influence on the target dynamics using the ISKRA-5 facility

The first experiments to study the shell's controlled asymmetry of capsule with DT-fuel in a highly symmetrical X-ray field, which is obtained inside a spherical hohlraum, were implemented. The asymmetry results from the coat ing of one hemisphere with the additional layer of material: The main goal of the experiment was to define the value of the capsule asymmetry, allowin g us to experimentally obtain the neutron yield, which would be very differ ent from the yield obtained in the experiment with the spherically symmetri cal shell having the same mass as the asymmetrical one. It was shown that t he shell asymmetry of similar to 50% leads to the similar to(2-4) times red uction of the neutron yield as compared with the symmetrical shell. 2D calc ulations of the asymmetric capsule compression, using the MIMOZA-ND code, w ere conducted. The calculations demonstrated that the compression of target s, when exploding pusher regime occurs has a complicated character. The com putational neutron yield, and the delay of the neutron generation time are in good agreement with the experimental data.