Abstract

In the deceleration of relativistic beam electrons by a phase area displacement wiggler,1 the resonant energy of the wiggler is increased from the front to the back so that the bucket is moved through the phase area occupied by the electrons. The result is a downward displacement in the electron energy by an amount of the order of the phase area of the bucket divided by 2-K. In the idealized limit of infinitely slow deceleration, there should be no energy spreading.

© 1984 Optical Society of America