Speaker
Description
Abstract
The results of measurements of the phase density (PD) of electron beam bunches formed by a gun with microwave control of the injection current are presented. The beam formed by the gun, consisting of a sequence of electron bunches, is collimated and deflected by the magnetic microwave field of the resonator-deflector. A linear or annular beam scan is formed in the registration plane. The deflector is excited at the bunch repetition frequency, or different from it. In the first case, the PD of electrons in bunches is characterized by the intensity of phosphor fluorescence in the recording plane. When the deflector is excited at a frequency different from the bunch repetition rate, picosecond current strobe pulses are extracted with a slit collimator, and the envelope of the strobe pulse sequence which represents the PD of electrons in bunches is recorded using a Faraday cup and an oscilloscope. The influence of the amplitude of the control microwave voltage of the gun grid on the PD of the formed bunches was found.
| Young scientist paper | No |
|---|
