24-30 September 2017
La Biodola, Isola d'Elba
Europe/Rome timezone

High Gradients in Dielectric Wakefield Accelerators

25 Sep 2017, 18:00
30m
SB2, Sala Bonaparte 2, HH

SB2, Sala Bonaparte 2, HH

talk WG3 - Electron Beams from Electromagnetic Structures, Including Dielectric and Laser-driven Structures WG3_Parallel

Speaker

Dr Brendan O'Shea (SLAC National Accelerator Laboratory)

Description

Significant advancements in Dielectric Wakefield Accelerators (DWA) have been made since the first experiments 30 years ago. For example, the accelerating gradients observed have improved beyond the GV/m level at frequencies in the terahertz regime. Such strong fields generate a change in the dielectric field, similar to a metallization, that have implications for the operation of DWA as high-gradient accelerating structures. In addition to increases in gradient, the techniques used to fabricate DWA have improved leading to evolutions in the geometries of DWA, e.g. photonic confinement structures. This talk covers the details of this metallization-like process in dielectrics, its effects on running DWA at high gradients and how DWA based on exotic geometries impact the role of DWA as future accelerators.

Primary author

Dr Brendan O'Shea (SLAC National Accelerator Laboratory)

Co-authors

Dr Gerard Andonian (UCLA) James Benjamin Rosenzweig (LNF) Mark Hogan (SLAC National Accelerator Laboratory) Mr Oliver Williams (UCLA Department of Physics and Astronomy) Mr Phuc Hoang (University of California, Los Angeles) Dr Vitaly Yakimenko (SLAC)

Presentation Materials