SLAC, Menlo Park, California, USA
DESY, Hamburg, Germany
Stanford University, Stanford, California, USA
Tech-X, Boulder, Colorado, USA
TEMF, TU Darmstadt, Darmstadt, Germany
University of Erlangen-Nuremberg, Erlangen, Germany
Friedrich-Alexander Universität Erlangen-Nuernberg, University Erlangen-Nuernberg LFTE, Erlangen, Germany
PSI, Villigen PSI, Switzerland
MIT, Cambridge, Massachusetts, USA
CFEL, Hamburg, Germany
University of Hamburg, Institut für Experimentalphysik, Hamburg, Germany
Purdue University, West Lafayette, Indiana, USA
UCLA, Los Angeles, California, USA
EPFL, Lausanne, Switzerland
Dielectric laser acceleration of electrons has recently been demonstrated with significantly higher accelerating gradients than other structure-based linear accelerators. Towards the development of an integrated 1 MeV electron accelerator based on dielectric laser accelerator technologies, development in several relevant technologies is needed. In this work, recent developments on electron sources, bunching, accelerating, focussing, deflecting and laser coupling structures are reported. With an eye to the near future, components required for a 1 MeV kinetic energy tabletop accelerator producing sub-femtosecond electron bunches are outlined.
PSI, Villigen PSI, Switzerland
IFIC, Valencia, Spain
CERN, Geneva, Switzerland
The University of Melbourne, Melbourne, Victoria, Australia
We present the design, construction and high-power test of an X-band radio-frequency accelerating structure, built as a prototype for the CERN LInear Collider (CLIC) study. X-band structures have been attracting increasing attention in recent years with applications foreseen in the domains of compact free electron lasers, medical accelerators and as diagnostics for ultra-short (femtosecond) electron bunches (when used in deflecting mode). To date, the main motivation for developments in this field has been as accelerating structures for linear colliders such as CLIC. In the context of a CERN/PSI collaboration we have built a prototype structure based on an existing CERN design, but with some modification, and following, as closely as possible, the realization and vacuum brazing techniques employed in the production of the C-band structures for the Swiss Free Electron Laser, SwissFEL. We will present the basic design of the structure and describe the fabrication process. The results of high power conditioning of the structure at CERN on an X-box test stand, to assess conditioning times, accelerating field and measure breakdown rates, will also be presented.