Speaker
Dr
Brendan O'Shea
(SLAC National Accelerator Laboratory)
Description
The future of electron driven light sources and colliders alike is quickly approaching a financial barrier that is only overcome by international collaborations. Size reduction of experimental systems, along with attendant reduction in cost, is one of many possible steps necessary to reaching TeV scale linear colliders and allowing for the spread of short-pulse x-ray light sources, such as free-electron lasers (FEL). To that end we present new experimental results that measure accelerating gradients using a witness electron bunch in excess of 300 MV/m in a Dielectric Wakefield Accelerator (DWA). The fields were measured in an annular quartz dielectric structure of 10 cm length driven by a 1.6 nC electron bunch of 55 um r.m.s. length and witnessed by an 880 pC electron bunch of 30 um r.m.s. length. The nominal energy of the two bunches was 20.35 GeV before interaction in the structure. This work, performed at the FACET facility at SLAC National Accelerator Laboratory, shall be presented in the context of preceding work that demonstrated that fields in excess of 1 GV/m are attainable in DWA systems as well as plans for future work.
Primary author
Dr
Brendan O'Shea
(SLAC National Accelerator Laboratory)
Co-authors
Dr
Gerard Andonian
(UCLA Department of Physics and Astronomy)
Prof.
James Rosenzweig
(UCLA Department of Physics and Astronomy)
Dr
Jere Harrison
(UCLA Department of Electrical Engineering)
Mrs
Kristin Fitzmorris
(UCLA Department of Physics and Astronomy)
Mark Hogan
(SLAC National Accelerator Laboratory)
Mr
Oliver Williams
(UCLA Department of Physics and Astronomy)
Mr
Phuc Hoang
(UCLA Department of Physics and Astronomy)
Mrs
Sahel Hakimi
(UCLA Department of Physics and Astronomy)
Dr
Samuel Barber
(UCLA Department of Physics and Astronomy)
Dr
Vitaly Yakimenko
(SLAC)
