Dielectric-loaded free-electron maser in a stripline structure

M. Einat, E. Jerby, A. Shahadi

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Experimental results of a dielectric-loaded free-electron maser (FEM) oscillator in a stripline structure are presented. The table-top oscillator experiment employs a low-energy electron beam (8 keV, 0.5 A) and a folded-foil wiggler (2 cm period). The waveguide consists of dielectric slabs and metal striplines along the side walls of a rectangular tube. The metallic striplines protect the dielectric slabs attached to them from the electron beam, and support a quasi-TEM mode in the waveguide. The effective dielectric constant of the dominant odd quasi-TEM mode is measured as εeff ≅ 8. The oscillator operates in a frequency range of 3-5 GHz, in agreement with the tuning relation of the slow-wave dielectric-loaded free-electron maser.

Original languageEnglish
Pages (from-to)21-25
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume375
Issue number1-3
DOIs
StatePublished - 11 Jun 1996
Externally publishedYes

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