Novel THz radiation source based on compact linear accelerator.

Marie Curie Research Fellow: Konstantin Lekomtsev

Research objectives:

• to investigate Cherenkov and Smith - Purcell mechanisms for THz radiation generation using EM simulation tools and propose the most efficient target configuration and observation geometry;

• to build a radiation source that provides high peak power levels and based on a compact linear accelerator technology with fs-duration beam;

• to evaluate possible applications of the investigated radiation mechanisms for beam position and bunch length diagnostics;

• to provide knowledge exchange between partner organisations and other interested parties via seminars, satellite and progress meetings, conferences and workshops;

• to improve public awareness about the ongoing research via outreach activities;

• to develop project management skills.

Generation of THz radiation from dielectric mm-scale capillaries with reflectors.

Demonstrated that coherent Smith Purcell Radiation, with intensity comparable to that of coherent Transition Radiation, can be generated as a result of introducing the corrugation in a mm-scale dielectric capillary and can be emitted through the outer dielectric boundary not covered by the reflector.

Detailed information on https://doi.org/10.1016/j.nimb.2017.02.058

Laser Undulator Compact X-ray source (KEK LUCX) facility in Japan:

Installation of capillaries in vacuum chamber and experimental scheme:

Crosscheck with Transition Radiation for central (zero transverse off-set) and non-central beam propagation; and crosscheck with a PIC simulation:

-- KonstantinLekomtsev1 - 20 Jun 2016