A ferroelectric electron gun in a free-electron maser experiment

M. Einat, E. Jerby*, G. Rosenman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


An electron-gun based on a ferroelectric cathode is studied in a free-electron maser (FEM) experiment. In this gun, the electrons are separated from the cathode surface plasma, and are accelerated in two stages. The electron energy-spread is reduced sufficiently for an FEM operation in the microwave regime. A 14 keV, 1-2 A e-beam is obtained in a 0.1-2.1 μs pulse width. The pulse repetition frequency attains 3.1 MHz in ∼ 50% duty-cycle. This gun is implemented in an FEM oscillator experiment operating around 3 GHz. The paper presents experimental results and discusses the applicability of ferroelectric guns in free-electron laser devices.

Original languageEnglish
Pages (from-to)326-330
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1-2
StatePublished - 1 May 2002


Dive into the research topics of 'A ferroelectric electron gun in a free-electron maser experiment'. Together they form a unique fingerprint.

Cite this