Affiliation:
1. Department of Physics and Astronomy, University of California at Los Angeles, 475 Portola Plaza, Los Angeles, CA 90095, USA
Abstract
THz sources offer the potential for higher frequencies and higher breakdown thresholds in accelerating structures in comparison with conventional RF sources. They also benefit from larger field strengths, field gradients, better beam synchronization and compactness. In this work, we first present the development of a 49μJ single-cycle THz source centered at 0.6 THz that provides fields over 30 MV/m. With further modifications, multicycle pulses were produced, narrowing the bandwidth of the source and potentially easing the coupling of THz radiation to relativistic electron beams and increasing the usability in other areas of research.
Reference31 articles.
1. Criterion for vacuum sparking designed to include both rf and dc;Kilpatrick;Rev. Sci. Instrum.,1957
2. Wang, J., and Loew, G. (1989, January 20–23). Rf breakdown studies in copper electron linac structures. Proceedings of the 1989 IEEE Particle Accelerator Conference, Accelerator Science and Technology, Chicago, IL, USA.
3. Breakdown limits on gigavolt-per-meter electron-beam-driven wakefields in dielectric structures;Thompson;Phys. Rev. Lett.,2008
4. Experimental measurements of rf breakdowns and deflecting gradients in mm-wave metallic accelerating structures;Dolgashev;Phys. Rev. Accel. Beams,2016
5. High-gradient breakdown studies of an X-band Compact Linear Collider prototype structure;Wu;Phys. Rev. Accel. Beams,2017