Coherent electron radiation in a synchrotron

The coherent radiation of electrons in a synchrotron was investigated experimentally for a wavelength of 10 cm, corresponding to the 50th harmonic of the electron frequency of revolution for various electron distributions inside the separatrix. In most cases, the theory of coherent radiation of electrons is confirmed. A disparity with the theory is observed for almost uniform electron distributions. The radiation was used for measurements of the electron phase oscillations and adiabatic damping of the phase oscillation amplitudes. The experiment was carried out on the synchrotron at the Physics Institute, Academy of Sciences, USSR at 280 Mev with an initial betratron acceleration.