Study On Super - Strong Magnetic Field And Internal Explosion - Induced Plasma Temperature Enhancement By Electromagnetic Drive

Magnetized target fusion (MTF) is a new fusion approach between magnetic confinement fusion (MCF) and inertial confinement fusion (ICF). The main advantages of MTF are small volume, low cost, short construction period. By embedding a magnetic field in the preheating plasma to suppress heating conduction (magnetic confinement), when the plasma expansion, the liner constrain it. (inertial confinement). The kinetic energy of the liner transfer to the preheating magnetized target plasma by electromagnetic driven so as to achieve ignition conditions. So, MTF has both the advantages of MCF, using strong magnetic confinement, inhibiting the thermal conduction of electrons and ions, while increasing the fusion products of alpha particle energy deposition and the advantages of inertial confinement, the solid wall material confine the plasma.This paper mainly studies the generation of the strong magnetic field and the implosion of the plasma by the electromagnetic force. We use Zero-dimensional model and 1-D 3-T hydrodynamic code for simulating.Zero-dimensional model is proposed to analyze the magnetic flux compression process of a thin cylindrical liner driven by the electromagnetic force. The efficiency of the energy conversion and optimization of the magnetic flux compression are analyzed by introducing three non-dimensional parameters (h, A, IT) and using a model consisting of LC circuit equations and equations of motion of a thin cylindrical shell. It is shown that in order to achieve a tenfold compression of cylindrical shell under the condition of the constant current, the parameter h should be less than 0.2. For the capacitor bank to store 1 MJ of energy, The optimized parameters are determined with the purpose of obtaining the compressed magnetic field up to 1000 T with high efficiency of magnetic energy conversion. The analysis and simulations are of important for both theoretical and experimental studies of magnetic flux compression.We modify the deira code including the program language version, driving mode, the post-processing data, the structure of the liner. The simulations show that appropriate initial magnetic field and plasma temperature can greatly increase the plasma heating effect.