Model of enhanced energy deposition in a RT unstable strongly radiating Z-pinch plasma due to fast penetration of magnetic bubbles to the axis

Summary form only given. A model of a strongly radiating Z-pinch plasma saturated with "magnetic bubbles", or toroidal tubes carrying magnetic flux is developed. This model is an advanced extension of the earlier "bubble model" suggested by Rudakov and Sudan (1997). It describes, in a self-consistent way, the most relevant physical effects like fast penetration of magnetic flux in the imploding and stagnating plasma, additional energy supply due to the pdV work associated with the "magnetic bubble" penetration, and dissipation of this induced turbulent motion due to ion viscosity. The goal of this development is to provide the rigorous framework for an averaged one-dimensional simulation of Z-pinch plasma radiation sources (PRS). This approach, in particular, would allow us to simulate magnetic energy coupling into the pinch plasma associated with the development of Rayleigh-Taylor (RT) instability without sacrificing the accuracy of the radiation transport modeling.