95 GHz gyrotron with ferroelectric cathode

M. Einat, M. Pilossof, R. Ben-Moshe, H. Hirshbein, D. Borodin

Research output: Contribution to journalArticlepeer-review


Ferroelectric cathodes were reported as a feasible electron source for microwave tubes. However, due to the surface plasma emission characterizing this cathode, operation of millimeter wave tubes based on it remains questionable. Nevertheless, the interest in compact high power sources of millimeter waves and specifically 95 GHz is continually growing. In this experiment, a ferroelectric cathode is used as an electron source for a gyrotron with the output frequency extended up to 95 GHz. Power above a 5 kW peak and ∼0.5μs pulses are reported; a duty cycle of 10% is estimated to be achievable.

Original languageEnglish
Article number185101
JournalPhysical Review Letters
Issue number18
StatePublished - 31 Oct 2012

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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