Nonlinear study of the elliptical wave guide FEM amplifier

wang ming hong; yang zi qiang; shi zong jun; liang zheng

Volume 14 Issue 04

Aug. 2002

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Article Navigation > High Power Laser and Particle Beams > 2002 > 14(04): 0-

liu lifeng, xiao shali, wang hongjian, et al. Application of spherically bent crystals spectrometer to X-ray diagnosis[J]. High Power Laser and Particle Beams, 2010, 22.

Citation:

wang ming hong, yang zi qiang, shi zong jun, et al. Nonlinear study of the elliptical wave guide FEM amplifier[J]. High Power Laser and Particle Beams, 2002, 14.

liu lifeng, xiao shali, wang hongjian, et al. Application of spherically bent crystals spectrometer to X-ray diagnosis[J]. High Power Laser and Particle Beams, 2010, 22.

Citation:

wang ming hong, yang zi qiang, shi zong jun, et al. Nonlinear study of the elliptical wave guide FEM amplifier[J]. High Power Laser and Particle Beams, 2002, 14.

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Nonlinear study of the elliptical wave guide FEM amplifier

1.
Institute of High Energy Electronics,University of Electronic Science and Technology,Chengdu 610054,China

Publish Date: 2002-08-15

Abstract

Abstract

A set of coupled nonlinear threedimension differential equations for the FEM amplifier with elliptical waveguide and planar wiggler is derived. Based on these equations, a universal numerical simulation program is developed independently. The characteristics of this FEM including the evolution of power, saturation efficiency and bandwidth are investigated using the numerical method. Electron momentum spread ,spacecharge and wiggler taper are also considered. Electron beam is modeled to adiabatically inject by allowing the wiggler amplitude to increase from zero to a constant amplitude and the spacecharge is analyzed in terms of GT mode expansion method. The results show that saturated output power is 360kW, efficiency is up to 9.2% using wiggler taper and 3dB bandwidth is 6.9% of
- fem amplifier,
- ellipti cal waveguide,
- planar wiggler,
- nonlinear property

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