Title :
MAGIC implicit particle pusher description and validation
Author :
Woods, Andrew J. ; Ludeking, Lars D.
Author_Institution :
Alliant Techsystems (ATK), Newington, VA, USA
Abstract :
MAGIC2D has been modified to include an implicit particle-in-cell (PIC) pusher for increased time steps and stability in beam-plasma simulations. The adjustable damping implicit update method of Friedman [LLNL, 2005] allows selectable attenuation of modes in a plasma. The particle update method and steps for validation within an ancillary 1D code and MAGIC2D are described. Successful implementation is evidenced by agreement with the original reference in both 1D and MAGIC for electrons in a potential well, by electric and magnetic field-dominated tests, and by agreement with the original explicit treatment in the electron energy gained in a space-charge-limited field-effect diode.
Keywords :
damping; diodes; electromagnetic wave absorption; electromagnetic wave scattering; space-charge limited devices; MAGIC implicit particle pusher; MAGIC2D; adjustable damping; ancillary 1D code; beam-plasma simulations; electric field; electron energy; field-effect diode; implicit particle-in-cell; magnetic field; mode attenuation; particle update method; space-charge; Computational modeling; Damping; Electric fields; Electric potential; Finite difference methods; Plasmas; EM FDTD PIC code; FDTD-PIC; IMPIC; MAGIC; dense plasma; implicit particle pusher;
Conference_Titel :
Pulsed Power Conference (PPC), 2011 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4577-0629-5
DOI :
10.1109/PPC.2011.6191530
