Title: Radiation produced by the modulated electron beam of a free electron laser
Description: The electron beam in a free electron laser (FEL) becomes axially modulated at the optical wave length of the FEL radiation. This electron beam passed through a gas may produce intense Cerenkov radiation. The effects of the radial and axial dimension of the electron bunches on the radiation are explored.
Subjects: Cherenkov radiation, Free electron lasers, Electron beams