Exploring multipacting characteristics of a rectangular waveguide

Author

Geng, R.L. ; Padamsee, H.S.

Author_Institution

Lab. of Nucl. Studies, Cornell Univ., Ithaca, NY, USA

Volume

1

fYear

1999

fDate

1999

Firstpage

429

Abstract

Multipacting (MP) characteristics of the rectangular waveguide used for the CESR-III superconducting RF (SRF) system were investigated by using a newly developed 3-D computer code. MP bands were identified for different operating modes, such as standing wave (SW) mode, traveling wave (TW) mode and the so called mixed wave mode (TW mixed with SW). A comparison between the simulation results and the experimental observations for the installed CESR-III SRF systems was made. Measures to suppress multipactoring were explored. Our simulation results suggested that an external DC magnetic field of a few Gauss of amplitude in the wave propagation direction would be very effective in disturbing the trajectories. Further work will include disk-type windows in the waveguide couplers

Keywords

accelerator RF systems; accelerator cavities; electron accelerators; rectangular waveguides; storage rings; superconducting cavity resonators; CESR-III; DC magnetic field; mixed wave mode; multipacting; rectangular waveguide; standing wave mode; superconducting RF system; traveling wave mode; waveguide couplers; Computational modeling; Couplers; Electrons; Electrooptical waveguides; Gaussian processes; Laboratories; Magnetic field measurement; Radio frequency; Radiofrequency identification; Rectangular waveguides;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1999. Proceedings of the 1999

Conference_Location

New York, NY

Print_ISBN

0-7803-5573-3

Type

conf

DOI

10.1109/PAC.1999.795724

Filename

795724