Comparison of 2-D PIC (MAGIC) and Modal (GATOR) Helix TWT Simulation Codes
Abstract
A series of comparisons between the two helix TWT simulation codes MAGIC [1] and GATOR [2] has been performed. The codes represent different levels of approximation and speed. The 2-D PIC simulation code MAGIC solves the Maxwells equations directly, while the 2-D parametric code GATOR solves a reduced set of Maxwell's equations based upon the envelope equations for spatio-temporally varying amplitudes. Both codes are based upon a sheath helix dispersion model. Because of the different methods used, GATOR is substantially faster; however, the comparisons indicate that the codes are in substantial agreement. [1] B. Goplen et al., Computer Phys. Commun., vol. 87, 1995. [2] H.P. Freund and E.G. Zaidman, Phys. Plasmas, vol. 4, p. 2292 (1997).
- Publication:
-
APS Division of Plasma Physics Meeting Abstracts
- Pub Date:
- November 1999
- Bibcode:
- 1999APS..DPP.UP116F