Methods for parameters diagnostics of multifunctional electrophysical explosive complex "EMIR"

For future research in the area of thermonuclear fusion and physics of high-energy-density VNIIEF is conducting the development of the multifunctional electrophysical explosive complex "EMIR". It is supposed, that with the use of this complex the conditions of thermonuclear ignition in high temperature plasma (/spl sim/0.3 keV) with a lifetime about several nanoseconds, forming during the electrodynamic compression of cylindrical plasma shells in Z-pinch geometry, will be achieved. One of the main problems to be resolved for realization broad-scale experiments on the complex "EMIR" are the development of methods for diagnostics of the processes, taking place in its separate devices. Along with the development of the methods intended to measure electrotechnical parameters of the magnetic energy source modules the development of methods for radiation diagnostics of plasma load and cavity with the thermonuclear target is of primary importance. In the report the measurement methods of the main power module parameters, including plasma current breaking, systems of the soft X-ray generation and the thermonuclear target are considered. The sensitivity and resolution of the methods are pointed out. The proposed measurement methods are adapted to conditions of explosive experiments with increased level of electromagnetic noise and may be tested on different laboratory installations. The realization of experiments with such methods will promote the obtaining of important information about dynamics of processes, which take place in the multifunctional electrophysical explosive complex "EMIR".

I. INTRODUCTION

The main goal of “EMIR” program is the development of high-power x-ray source for fusion ignition conditions obtaining, and investigations in the field of high-energy-density physics [1], [2]. It is supposed that creation of equilibrium x-ray radiation with the temperature of in closed cavity of volume will lead to ignition of thermonuclear reactions in dense target. According to the calculations, necessary temperature could be realized at (3–4) MJ soft x-rays injection into the cavity at a time of , In this case requirements for radiation symmetry of the ablation pressure on thermonuclear target) are provided by two-sided. x-rays injection with time difference of Possible variant of radiation pumping structural scheme is presented in Figure 1. Figure 1. Scheme of “EMIR” radiation pumping into the cavity.