On the Effect of Transverse Thermal Velocities of Electrons in the Converging Sheet Electron Beams Formed by Guns with Partial Magnetic Shielding of a Cathode

We report on the results of investigations of the effect of the initial thermal velocities of electrons in the converging sheet electron beams formed by guns with partial magnetic shielding of a cathode. The results are presented in the form of generalized dependences, which can be used to control the thermal beam configuration with different beam parameters and focusing magnetic fields and simulate the electron-optical systems that ensure a required current flow of such beams in the transit channel.