The source of THz radiation based on dielectric waveguide excited by sequence of electron bunches

11th International Symposium on Radiation from Relativistic Electrons in Periodic Structures

Altmark, A.M.^1 ; Kanareykin, A.D.^1,2

St. Petersburg Electrotechnical University, St. Petersburg, 5 Prof. Popov St., St. Petersburg

197376, Russia^1

Euclid Techlabs LLC, 400 Professional Dr., Gaithersburg

MD

20879, United States^2

关键词: Cherenkov radiations;    Electron bunch;    Focusing system;    Group velocities;    Material loss;    Monochromatic radiation;    Relativistic electron bunch;    THz radiation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/732/1/012037/pdf
DOI  :  10.1088/1742-6596/732/1/012037

来源: IOP

【 摘 要 】

We present a new method for excitation of THz Cherenkov radiation in a dielectric waveguide by relativistic electron bunches. A sequence of bunches generates monochromatic radiation. The frequency of radiation is defined by the distance between the bunches. The studies were carried by using the newly updated BBU-3000 code which permits taking into account a number of additional options: an external quadrupole focusing system, group velocity of the wakefield, and the dielectric material loss factor. In this paper, we present our algorithm for optimizing the number and sequential positions of bunches for generation of narrow band high power THz radiation.