Sources of free electrons coherent radiation, be they FEL or CBS devices, are undergoing a continuous demand of improvement of the relevant output performances. These laser-like tools are widely used all over the world and are the highest performing in terms of brilliance, mono-chromaticity, coherence, directionality and polarization control. However in spite of their undoubted success and...
Today, a compact monochromatic radiation source in the X-ray range based on inverse Compton scattering is being constructed in MEPhI. The source will be based on linear standing wave accelerator of electrons and compact o-shape magnetic channel (accumulator ring). The features of collective effects in the ring are studied. The thresholds of longitudinal microwave instability and transverse...
The traditional interpretation of the channeling phenomenon is associated with the possibility of transporting particle or radiation beams over long distances without dissipation in specially ordered or focusing systems. It is shown that a similar process of quasi-channel motion with complete self-suppression of absorption and scattering can be realized for a weak (small in amplitude)...
The results of experimental observation of coherent Cherenkov radiation from picosecond electron bunches traveling along the axis of a hollow cylindrical dielectric loaded waveguide are presented. Experiments are provided on the linear accelerator AREAL of CANDLE laboratory in Yerevan. The angular distribution of radiation from 3.7 MeV electron bunches passing through cylindrical quartz sample...
The results of theoretical studies of the spectral and angular distribution of radiation generated by a train of electron bunches crossing a dielectric ball are presented. The numerical results are given for a dielectric ball made of Quartz, Teflon, or Strontium titanate. It is shown, that strong peaks can appear in the spectral distribution of the radiation intensity for certain values of...