Title :
Particle-in-cell calculations cf the electron cloud in the ILC positron damping ring wigglers
Author :
Celata, C.M. ; Furman, M.A. ; Vay, J.L. ; Grote, D.P.
Author_Institution :
Lawrence Berkeley Nat. Lab., Berkeley
Abstract :
The self-consistent code suite WARP-POSINST is being used to study electron cloud effects in the ILC positron damping ring wiggler. WARP is a parallelized, 3D particle-in-cell code which is fully self-consistent for all species. The POSINST models for the production of photoelectrons and secondary electrons are used to calculate electron creation. Mesh refinement and a moving reference frame for the calculation will be used to reduce the computer time needed by several orders of magnitude. We present preliminary results for cloud buildup showing 3D electron effects at the nulls of the vertical wiggler field. First results from a benchmark of WARP-POSINST vs. POSINST are also discussed.
Keywords :
beam handling techniques; electron accelerators; high energy physics instrumentation computing; particle beam dynamics; storage rings; wigglers; 3D particle-in-cell code; ILC positron damping ring wigglers; WARP-POSINST code; electron cloud; mesh refinement; moving reference frame; photoelectron production; secondary electron production; self-consistent code suite; Clouds; Conductors; Damping; Electromagnetic fields; Electron beams; Laboratories; Orbital calculations; Positrons; Production; Undulators;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4441017
