Free-electron-laser-type interaction at 1 meter wavelength range

R. Drori, E. Jerby*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

A free-electron-laser (FEL)-type interaction is observed between a low-energy electron beam (∼0.7 keV) and a radio wave in the VHF range (λ = 1.1 m). The experimental device consists of a transmission-line (TEM-mode) cavity, and a folded-foil planar wiggler (λw = 4 cm). Coherent oscillations are observed in the fundamental-cavity mode (0.28GHz) and in higher-order modes. The FEL-type mechanism is demonstrated here in a new regime, λ ≫ λw.

Original languageEnglish
Pages (from-to)284-288
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume393
Issue number1-3
DOIs
StatePublished - 1 Jul 1997

Keywords

  • Free-electron laser
  • Free-electron maser
  • Radio waves
  • UHF
  • VHF

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