DocumentCode :
3671075
Title :
MAGIC3D FDTD EM-PIC code cut cell slow wave serpentine calculation
Author :
Andrew J. Woods;Lars D. Ludeking
Author_Institution :
Orbital ATK, Inc. National Capital Region 8560 Cinderbed Road, Suite 700, Newington, VA, 22122 USA
fYear :
2015
fDate :
5/1/2015 12:00:00 AM
Firstpage :
1
Lastpage :
5
Abstract :
The MAGIC3D finite difference electromagnetic particle-in-cell (FDTD EM-PIC) code has been upgraded to include non-conformal or “cut” cells. The code solves Maxwell´s equations in Cartesian coordinates using full and partial cells cut arbitrarily along flat surfaces. The sophisticated cut cell treatment enables cells to be sliced in all directions and fractions. A field remapping algorithm combines small volumes into neighbor cells to prevent undue Courant time step limitations. The code has been applied to reduced generic serpentine slow wave structures with incoming EM and particle beams in order to explore benefits of cut cells in deliberately marginally-zoned treatments. Improved power transmission was seen with cut cells. Reduced unwanted noise occurred in the particle beam case. Benefits were tracked to the smoother geometry of the serpentine sections with cut cells.
Keywords :
"Geometry","Finite difference methods","Particle beams","Time-domain analysis","Hollow waveguides"
Publisher :
ieee
Conference_Titel :
Pulsed Power Conference (PPC), 2015 IEEE
ISSN :
2158-4915
Electronic_ISBN :
2158-4923
Type :
conf
DOI :
10.1109/PPC.2015.7296974
Filename :
7296974
Link To Document :
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