Speaker
Dr
Alexey Tishchenko
(National Research Nuclear University "MEPhI")
Description
Electrons moving above a periodic dielectric structure generate Smith-Purcell radiation (SPR). SPR may serve for noninvasive bunch diagnostics and also as a good source of THz radiation [1, 2]. In the present report we suggest using a ribbon beam in order to enhance the effective interaction between the beam and grating. In our previous works [3,4] we used the scheme with cylindrical symmetry, whereas here we construct the theory of SPR for the flat beam and flat grating from the first principles, calculate spectral and angular distributions of radiation, and analyze the radiation characteristics in THz range for the parameters of LUCX (KEK).
References
1. A.P. Potylitsyn, M. I. Ryazanov, M.N. Strikhanov and A.A. Tishchenko, Diffraction radiation of relativistic particles, Springer, 2011.
2. S. E. Korbly et al., Observation of frequency locked coherent Terahertz Smith-Purcell radiation, PRL 94, 054803 (2005).
3. A.A. Ponomarenko, M.I. Ryazanov, M.N. Strikhanov, A.A. Tishchenko, Terahertz Radiation from Electrons Moving through a Waveguide with Variable Radius, Based on Smith-Purcell and Cherenkov Mechanisms, Nucl. Instrum. and Meth. B 309, 223 (2013).
4. A.A. Ponomarenko, K.V. Lekomtsev, A.A. Tishchenko, M.N. Strikhanov, J. Urakawa, CST simulation of THz radiation from a channel with periodically variable radius, Nucl. Instr. and Meth. B 355, 160-163 (2015).
Primary author
Dr
Alexey Tishchenko
(National Research Nuclear University "MEPhI")
Co-authors
Mr
Alexsandr Ponomarenko
(Russia)
Ms
Darya Sergeeva
(National Research Nuclear University "MEPhI")
Mr
Ilya Ashanin
(National Research Nuclear University “MEPhI”)
Prof.
Mikhail Strikhanov
(National Research Nuclear University "MEPhI")
Dr
Sergey Polozov
(National Research Nuclear University “MEPhI”)
