Sub - THz Radiation from Dielectric Capillaries with Reflectors

physics.acc-ph

/ Authors

K. Lekomtsev, A. Aryshev, A. A. Tishchenko, M. Shevelev, A. A. Ponomarenko, P. Karataev, N. Terunuma, J. Urakawa

/ Abstract

In this report we present experimental investigations of THz radiation generated from a corrugated and a non-corrugated capillary with reflectors, using a femtosecond electron beam of LUCX accelerator at KEK, Japan. We discuss measurements of radiation angular distributions and their comparison with Particle In Cell simulations, and also investigate an off-central propagation of the beam in the capillaries based on experimental measurements and simulations.