Chaotic electron dynamics for relativistic-electron-beam propagation through a planar wiggler magnetic field

Journal Article · Mon Oct 15 04:00:00 EDT 1990 · Physical Review, A; (USA)

DOI:https://doi.org/10.1103/PhysRevA.42.5041· OSTI ID:6078600

Chen, C; Davidson, R C ^[1]

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1. Plasma Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (USA)

It is shown that the motion of an individual test electron in a low-density relativistic electron beam propagating through a realizable planar wiggler magnetic field is nonintegrable and can become chaotic. The presence of chaos, which is induced by the transverse spatial inhomogeneities in the wiggler field, poses limits on the wiggler field amplitude and the beam size for beam propagation and free-electron-laser operation. An approximate condition that determines the onset of chaos-induced beam degradation is derived analytically and found to be in good qualitative agreement with the numerical simulations using the Poincare map.

• OSTI ID: 6078600
• Journal Information: Physical Review, A; (USA), Journal Name: Physical Review, A; (USA) Vol. 42:8; ISSN 1050-2947; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430200* -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
BEAM DYNAMICS
BEAMS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
ELECTRON BEAMS
ENERGY RANGE
EQUIPMENT
FREE ELECTRON LASERS
LASERS
LEPTON BEAMS
MAGNETIC FIELDS
MAGNETS
PARTICLE BEAMS
RELATIVISTIC RANGE
WIGGLER MAGNETS