ISSN 0869-6632 (Print)
ISSN 2542-1905 (Online)


intensive electron beam

Magnetic focusing system for intense electron beams of submillimeter clinotrons

The simulation results of multi-segment permanent magnet magnetic focusing system for clinotrons in submillimeter range have been presented. The visualization of magnetic field distribution in the gap between the system magnetic poles was done with the help of computer simulations. The simulation results are compared with those obtained experimentally. The magnetic field distribution curves of both single segment and whole multi-segment magnetic system are presented.

Wideband chaotic generation and optimization of characteristics in microwave generator with electronic feedback and magnetic periodic focusing system

With the help of 2D numerical model it has been investigated the nonlinear dynamics and generation of wideband chaotic signals in the generator based on electron beam with the virtual cathode. It has been discovered the strong influence of the external non-uniform magnetic field on the nonlinear dynamics of the virtual cathode in the system. It has been analyzed the physical processes responsible for the discovered dependency of dynamics of the electron beam with the virtual cathode on the parameters of the external nonuniform magnetic field.

Mathematical model and its numerical realization for the investigation and optimization of generators with electron feedback

It was stated in the paper the mathematical model and its numerical realization for the investigation of wideband chaotic oscillations and of physical processes in the electron beams with virtual cathode at the generators with electron feedback. Also it was briefly described the developed program package for the modeling of non­stationary nonlinear physical processes at the electron generators with virtual cathode and for calculating of output characteristics of devices.