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Stimulated Raman scattering by an intense relativistic electron beam subjected to a rippled electric field

1979; American Institute of Physics; Volume: 50; Issue: 8 Linguagem: Inglês

10.1063/1.326651

1520-8850

G. Bekefi, R. E. Shefer,

Particle accelerators and beam dynamics

Generation of submillimeter radiation by stimulated Raman scattering in an intense relativistic electron beam subjected to a spatially periodic transverse electric field is examined. The requisite electric field modulation can be obtained by rippling the wall of the conducting drift tube. When the electron beam is subjected to a periodic longitudinal electric field, short-wavelength plasmons, rather than photons, are generated. The growth rate and other parameters related to this instability are discussed.