Lozhkin R. High-current linear induction charged particles accelerator section energy performance improving by improving its elements

Dissertation work is dedicated to the improvement electrons and charge-compensated ion beams high-current LIA sections, with the providing goal improved energy LIA characteristics: high acceleration, average beam power (up to MW level), parcels accelerating pulses frequency, etc. In the work the rationale of the construction of elements the LIA section with an induction system sectioned along the axial has been carried out, methods, ensuring the maximum acceleration rate with the lowest energy losses in the induction system in such sections have been found. The construction of the elements of the charge-compensated ion beams LIA section has been substantiated, that allowed to provide the necessary accelerator parameters of – the section accelerating voltage is not less than 2 MV, and the acceleration rate is not less than 2 MV/m. The dynamics of the pulsed magnetization reversal of the LIA inductors ferromagnet has been studied, the effect of the geometry of the ferromagnetic inductor cores and the regime of their loading on the accelerating voltage pulse shape is analyzed. The ways, reducing the accelerating voltage spread on the pulse table have been found. The thermal stability of the LIA section elements (induction system, power lines, vacuum isolation) was studied, the maximum possible accelerating pulse repetition frequency was determined. The methods of providing a megawatt level of the increment of the average beam power with increment of its energy at the level of megaelectronvolts by the LIA section are revealed. The research of the vacuum electrical insulation of the LIA experimental model has been carried out; the ways of the improvement of LIA section elements electrical isolation have been found.