PAC2013 - List of Authors (Holmes, J.A.)

Paper

Title

Page

Space Charge Models for Particle Tracking on Long Time Scales

781

J.A. Holmes, S.M. Cousineau, A.P. Shishlo
ORNL, Oak Ridge, Tennessee, USA
R.E. Potts
UTK, Knoxville, Tennessee, USA

Funding: ORNL is managed by UT-Battelle, LLC, under contract DE-AC05-00OR22725 for the U.S. Department of Energy.
In order to efficiently track charged particles over long times, most tracking codes use either analytic charge distributions or particle-in-cell (PIC) methods based on fast Fourier transforms (FFTs). While useful for theoretical studies, analytic distribution models do not allow accurate modeling of real machines. PIC calculations can utilize realistic space charge distributions, but these methods suffer from the presence of numerical diffusion. We examine the situation for particle tracking with space charge over long times, and consider possible ideas to improve the accuracy of such calculations.

Slides WEODB2 [7.165 MB]

Paper	Title	Page
WEODB2	Space Charge Models for Particle Tracking on Long Time Scales	781
	J.A. Holmes, S.M. Cousineau, A.P. Shishlo ORNL, Oak Ridge, Tennessee, USA R.E. Potts UTK, Knoxville, Tennessee, USA
	Funding: ORNL is managed by UT-Battelle, LLC, under contract DE-AC05-00OR22725 for the U.S. Department of Energy. In order to efficiently track charged particles over long times, most tracking codes use either analytic charge distributions or particle-in-cell (PIC) methods based on fast Fourier transforms (FFTs). While useful for theoretical studies, analytic distribution models do not allow accurate modeling of real machines. PIC calculations can utilize realistic space charge distributions, but these methods suffer from the presence of numerical diffusion. We examine the situation for particle tracking with space charge over long times, and consider possible ideas to improve the accuracy of such calculations.
	Slides WEODB2 [7.165 MB]