Title :
Theoretical analysis of overmoded dielectric photonic band gap structures for accelerator applications
Author :
Shapiro, M.A. ; Smirnova, E.I. ; Chen, C. ; Temkin, R.J.
Author_Institution :
Plasma Sci. & Fusion Center, MIT, Cambridge, MA, USA
Abstract :
An overmoded accelerator structure is proposed based on a dielectric photonic-band-gap (PBG) disk-loaded structure. The structure consists of dielectric rods and metal disks with irises. It is advantageous for application in high frequency (17 GHz and higher) linacs because of the large dimensions of the structure. The operating mode is a higher-order TM02 mode. One unique feature is that the fundamental TM01 mode is not supported by the structure. Along with that, the dipole mode TM11 is strongly suppressed. The dielectric PBG structure can also be attractive for application in a dielectric wakefield accelerator.
Keywords :
accelerator cavities; linear accelerators; photonic band gap; wakefield accelerators; dielectric rods; dielectric wakefield accelerator; dipole mode; disk-loaded structure; high frequency linacs; metal disks; overmoded accelerator structure; overmoded dielectric photonic band gap structures; Acceleration; Dielectric losses; Dielectric substrates; Frequency; Lattices; Photonic band gap; Plasma accelerators; Q factor; Structural rods; Testing;
Conference_Titel :
Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the
Print_ISBN :
0-7803-7738-9
DOI :
10.1109/PAC.2003.1289670
