Electron movement in the Motz undulator

Abstract

Electron motion in an undulator magnetic field formed by straight magnets with alternating polarity placed in parallel is studied in this work. In the mathematical model the magnets are simulated as dipoles. It is shown with a high degree of accuracy that the dipole field is chaotic, which causes frequent shifts in the direction of the electron motion and occurrences of braking radiation. The well-known Ginsburg formulas were used.