Title :
A linear analysis to overcome the numerical Cherenkov instability
Author :
Assous, F. ; Segré, J.
Author_Institution :
Ariel Univ. Center, Bar-Ilan Univ., Bar-Ilan, Israel
Abstract :
This paper proposed a linear analysis to overcome the numerical Cherenkov instability. Basically, it is based on a explicit time scheme for solving electromagnetic particle simulations. This scheme depends on a parameter, that allows us to reduce and in some cases to suppress the numerical Cherenkov instability that can appear in this context, and is widely described in the literature. Some properties of the scheme are also investigated. Numerical examples are finally given to illustrate our purpose.
Keywords :
Cherenkov radiation; particle beam stability; electromagnetic particle simulations; explicit time scheme; linear analysis; numerical Cherenkov instability; Dispersion; Electromagnetic propagation; Finite difference methods; Finite element methods; Maxwell equations; Numerical simulation; Optical propagation; Partial differential equations; Particle beams; Plasma properties;
Conference_Titel :
Thermal, Mechanical & Multi-Physics Simulation, and Experiments in Microelectronics and Microsystems (EuroSimE), 2010 11th International Conference on
Conference_Location :
Bordeaux
Print_ISBN :
978-1-4244-7026-6
DOI :
10.1109/ESIME.2010.5464616
