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

fYear

2007

fDate

25-29 June 2007

Firstpage

1164

Lastpage

1166

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2007. PAC. IEEE

Conference_Location

Albuquerque, NM

Print_ISBN

978-1-4244-0916-7

Type

conf

DOI

10.1109/PAC.2007.4441017

Filename

4441017