To the calculation of the three electrods electron gun for the creation of spiral electron beam in MCR with the reforming generation frequency

In the present article a method is proposed for computing the motion of electrons in a three-electrode gun used in a cyclotron-resonance maser. The region of motion is divided into four stages, in each of which the expressions for the strengths of the electrical and magnetic fields are different. Based on a solution of the kinetic equation, the g-factor (ratios of the electron's rotational energy to its translational energy) are computed for different voltages at the electrodes and different strengths of the magnetic field in the interaction region. The results obtained give us a basis for selecting an optimal mode of operation of a particular cyclotron-resonance maser model.