Title :
Analytical and time-domain computations of single bunch loss-factor in a planar structure
Author :
Smirnov, Alexander ; Yu, D.
Author_Institution :
DULY Res. Inc., Rancho Palos Verdes, CA
Abstract :
An analytical formulation is developed for a Gaussian bunch loss-factor in a periodic planar ("muffin-tin") structure. The short-range wakefield contribution is modeled with diffraction pattern expanded in a sum of quasi-eigenmodes of an equivalent open waveguide, which is excited by charge "image" fields induced on the iris edges. Comparisons with GdfidL time-domain multi-cell 3D simulations demonstrate a good accuracy of the model. Transverse wakes are computed numerically
Keywords :
particle beam bunching; Gaussian bunch loss-factor; GdfidL time-domain multi-cell 3D simulations; charge image fields; diffraction pattern; iris edges; open waveguide; periodic planar muffin-tin structure; quasieigenmodes; short-range wakefield contribution; single-bunch loss-factor; transverse wakes; Acceleration; Computational modeling; Diffraction; Frequency; Impedance; Iris; Linear accelerators; Modems; Periodic structures; Time domain analysis;
Conference_Titel :
Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the
Conference_Location :
Portland, OR
Print_ISBN :
0-7803-7738-9
DOI :
10.1109/PAC.2003.1289851
