Sep 24 – 30, 2017
La Biodola, Isola d'Elba
Europe/Rome timezone

Electron-THz interaction in dielectric-lined waveguide deflecting structures

Sep 25, 2017, 7:30 PM
Parking Area, Hotel Hermitage

Parking Area, Hotel Hermitage

poster WG3 - Electron Beams from Electromagnetic Structures, Including Dielectric and Laser-driven Structures Wine and Poster Session 1(WG1-WG2-WG3-WG8)


Ms Alisa Healy (The Cockcroft Institute)


Terahertz-driven dielectric-lined waveguides (DLWs) have uses in electron manipulation; in particular deflection, acceleration, and focussing. A rectangular DLW has been optimised for deflection of 100 keV electrons using a THz pulse with a centre frequency 0.5 THz. A narrowband THz pulse is generated using a lithium niobate crystal and chirped pulse beating. Electron-THz interaction and the effect of electron bunch injection timing on maximising deflection is presented, with a focus on beam dynamics. Structure design, including coupling from free-space into the DLW, has been completed and the practical aspects of operation are discussed. Finally DLWs and corrugated waveguides are compared to discuss relative advantages and disadvantages.

Primary author

Ms Alisa Healy (The Cockcroft Institute)


Dr Graeme Burt (Lancaster University) Dr Steven Jamison (STFC Daresbury Laboratory)

Presentation materials