Title :
Multipactor simulations in superconducting cavities
Author :
Gonin, I. ; Solyak, N. ; DeFord, J. ; Held, B.
Author_Institution :
FNAL, Batavia
Abstract :
The multipactor (MP) is a well-known phenomenon. The existence of resonant trajectories can lead to electron avalanche under certain field levels and surface conditions, and can limit the performance of high power superconducting (SC) radio-frequency (RF) devices. In this paper we describe features of the ANALYST particle tracking code PT3P developed for MP simulations in real 3D RF structures, such as cavities, couplers, RF windows etc. Also we present the results of MP simulations in HOM couplers of TESLA, SNS and FNAL 3rd harmonic cavities. We discuss the comparison of simulations with experimental results.
Keywords :
accelerator RF systems; accelerator cavities; electron avalanches; linear accelerators; microwave switches; superconducting microwave devices; 3D RF structures; ANALYST; HOM couplers; PT3P particle tracking code; RF windows; electron avalanche; linacs; multipactor simulations; resonant trajectories; superconducting cavities; superconducting radio-frequency devices; third harmonic cavities; Counting circuits; Couplers; Electrons; Finite element methods; Kinetic energy; Particle tracking; Performance analysis; Radio frequency; Resonance; Superconducting devices;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4441212
