Relativistic electron nonlinear orbit for a combined plasma wave wiggler and an axial guide magnetic field near magnetoresonance

Journal Article · Mon Mar 01 04:00:00 EST 1993 · Physics of Fluids B; (United States)

DOI:https://doi.org/10.1063/1.860948· OSTI ID:6816906

Yu, J ^[1]; Gao, Q ^[2]; Lu, B ^[3]

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1. China Center of Advanced Science and Technology (World Laboratory), P.O. Box 8730, Beijing (China) Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041 (China)
2. Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041 (China)
3. High Energy Microwave Electronics Institute, University of Electronic Science and Technology of China, P.O. Box 83, Chengdu 610041 (China)

The relativistic electron nonlinear orbit is investigated for a combined electrostatic plasma wave wiggler and an axial guide magnetic field free electron laser near magnetoresonance. Through simplification, the perpendicular orbit equation is reduced to be identical to the wave-driven nonlinear oscillator equation [R. C. Davidson, Phys. Lett. A [bold 126], 21 (1987)] but with different expressions of parameters. It is found that the maximum perpendicular orbit excursion [Delta][ital x][sub max] is in proportion to ([ital a][sub [ital w]]/[gamma][sub 0])[sup 1/3], which is largely determined by the nonlinear effect, where [ital a][sub [ital w]] is the wiggler strength and [gamma][sub 0] is the initial relativistic factor. The analytical results are in good agreement with the numerical calculation for small ratio of [ital a][sub [ital w]] to [gamma][sub 0].

• OSTI ID: 6816906
• Journal Information: Physics of Fluids B; (United States), Journal Name: Physics of Fluids B; (United States) Vol. 5:3; ISSN 0899-8221; ISSN PFBPEI
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700380* -- Elementary & Classical Processes in Plasmas-- (1992-)
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
ELECTRONIC EQUIPMENT
ELECTRONS
ELEMENTARY PARTICLES
ENERGY RANGE
EQUIPMENT
FERMIONS
FREE ELECTRON LASERS
LASERS
LEPTONS
MAGNETS
ORBITS
OSCILLATORS
PLASMA WAVES
RELATIVISTIC RANGE
WIGGLER MAGNETS