Title :
Collimator Wakefields: formulae and simulation
Author :
Barlow, Roger John ; Bungau, Adriana ; Jones, Roger Michael
Author_Institution :
Cockcroft Inst., Warrington
Abstract :
The effect of a leading particle on a trailing particle due to resistive and geometric wakefields in collimators can be described by expanding in a series of angular mode potentials Wm(s). Several formulae for these are given in the literature. We compare these formulae with numerical predictions from codes that solve the EM field equations. We also show how the EM code results can be used to numerically obtain angular mode potentials suitable for use in tracking codes.
Keywords :
beam handling techniques; collimators; electromagnetic fields; linear colliders; particle beam bunching; physics computing; wakefield accelerators; EM field equations; ILC; MAFIA program; angular mode potentials; bunch wakes; collimator geometric wakefields; numerical predictions; simulation; tracking codes; trailing particle; Apertures; Collimators; Computational modeling; Equations; Fourier transforms; Grid computing; Particle tracking; Resonance; Shape; Solid modeling;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4440440
