Title :
A slab-symmetric dielectric-loaded structure for high-gradient acceleration at THz
Author :
Yoder, R.B. ; Rosenzweig, J.B.
Author_Institution :
Dept. of Phys. & Astron., UCLA, Los Angeles, CA, USA
Abstract :
We present a design for a slab-symmetric accelerating structure to be resonantly excited at terahertz frequencies. The device, consisting of a vacuum gap between dielectric-lined walls, combines the advantages of a slab geometry (including strong suppression of transverse beam wakefields and low power density) with the existence of a resonant mode having phase synchronism with relativistic electrons. Accelerating fields of hundreds of MeV/m are predicted when the structure is powered by a high-power FIR radiation source in development at UCLA. Simulation of the structure fields is described and compared with theory, and an experimental program is discussed.
Keywords :
accelerator cavities; collective accelerators; dielectric-loaded waveguides; dielectric-lined walls; high-gradient acceleration; high-power FIR radiation source; phase synchronism; relativistic electrons; resonant mode; slab-symmetric accelerating structure; slab-symmetric dielectric-loaded structure; terahertz frequencies; vacuum gap; Acceleration; Astronomy; Dielectrics; Frequency; Geometrical optics; Laser theory; Masers; Physics; Resonance; Slabs;
Conference_Titel :
Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the
Print_ISBN :
0-7803-7738-9
DOI :
10.1109/PAC.2003.1288585
