Unstable electrostatic beam modes in free-electron-laser systems

Journal Article · Thu Sep 01 04:00:00 EDT 1983 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.28.1835· OSTI ID:5553098

Freund, H P; Sprangle, P

The electrostatic stability of the free-electron laser is studied for a configuration in which a relativistic electron beam propagates through combined helical wiggler and axial guide fields. Instability is found for certain specific parameter regimes which, in the beam frame, is shown to be purely growing and to require the presence of both the wiggler and axial guide fields. The electrostatic stability is also studied for a configuration which consists of a linearly polarized wiggler and an axial guide field, for which analogous results are found.

• Research Organization: Naval Research Laboratory, Washington, DC 20375
• OSTI ID: 5553098
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 28:3; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
BEAMS
CONFIGURATION
DISPERSION RELATIONS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
ELECTRON BEAMS
EQUIPMENT
FREE ELECTRON LASERS
INSTABILITY
LASERS
LEPTON BEAMS
LORENTZ FORCE
MAGNETIC FIELDS
MAGNETS
PARAMETRIC ANALYSIS
PARTICLE BEAMS
WIGGLER MAGNETS