A 32 ghz bragg free-electron maser (FEM) oscillator with axial guide magnetic field

A.W. Cross, N.S. Ginzburg, W. He, D.A. Jaroszynski, N.Y. Peskov, A.D.R. Phelps, C.G. Whyte

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

A narrow-band Free-Electron Maser (FEM) oscillator with a Bragg resonator was operated in the reversed guide field regime. A high-current accelerator generated the 300keV, 30A, 100ns electron beam. Radiation at 32GHz frequency and 500kW power, corresponding to ~5% efficiency, was measured. The measured FEM parameters agreed with predictions of a numerical simulation. The observed radiation frequencies compared well with ''cold'' microwave calibration of the cavity.
Original languageEnglish
Pages (from-to)181-186
Number of pages5
JournalNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume407
Issue number1
DOIs
Publication statusPublished - 21 Apr 1998

Keywords

  • free-electron maser
  • reversed guide field
  • bragg resonator

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