TY - CPAPER
AU - Stupakov, G.
TI - Using Pipe With Corrugated Walls for a Sub-Terahertz FEL
J2 - Proc. of FEL2015
AB - A metallic pipe with corrugated walls supports propagation of a high-frequency mode that is in resonance with a relativistic beam propagating along the axis of the pipe. This mode can be excited by a beam whose length is a fraction of the wavelength. In this work, we discuss another option of excitation of the resonant mode'via the mechanism of the free electron laser instability. This mechanism works if the bunch length is much longer than the wavelength of the radiation, and hence does not require bunch compression. It provides an alternative to excitation by short bunches that can be realized with relatively low energy and low peak-current electron beams.
PB - JACoW
CY - Geneva, Switzerland
ER -