The analysis of single-electron orbits in a free electron laser based upon a rectangular hybrid wiggler

Journal Article · Sat Sep 15 04:00:00 EDT 2012 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4752072· OSTI ID:22086167

Kordbacheh, A; Ghahremaninezhad, Roghayeh ^[1]; Maraghechi, B ^[2]

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1. Department of Physics, Iran University of Science and Technology, 1684613114 Tehran (Iran, Islamic Republic of)
2. Department of Physics, Amirkabir University of Technology, 159163411 Tehran (Iran, Islamic Republic of)

A three-dimensional analysis of a novel free-electron laser (FEL) based upon a rectangular hybrid wiggler (RHW) is presented. This RHW is designed in a configuration composed of rectangular rings with alternating ferrite and dielectric spacers immersed in a solenoidal magnetic field. An analytic model of RHW is introduced by solution of Laplace's equation for the magnetostatic fields under the appropriate boundary conditions. The single-electron orbits in combined RHW and axial guide magnetic fields are studied when only the first and the third spatial harmonic components of the RHW field are taken into account and the higher order terms are ignored. The results indicate that the third spatial harmonic leads to group III orbits with a strong negative mass regime particularly in large solenoidal magnetic fields. RHW is found to be a promising candidate with favorable characteristics to be used in microwave FEL.

• OSTI ID: 22086167
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 9 Vol. 19; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BOUNDARY CONDITIONS
DIELECTRIC MATERIALS
ELECTRONS
FERRITE
FREE ELECTRON LASERS
LAPLACE EQUATION
LASERS
MAGNETIC FIELDS
MATHEMATICAL SOLUTIONS
MICROWAVE RADIATION
NEGATIVE MASS
ORBITS
RECTANGULAR CONFIGURATION
SPACERS
THREE-DIMENSIONAL CALCULATIONS