CST – Computer Simulation Technology

95 GHz Gyrotron with Ferroelectric Cathode

Title:
95 GHz Gyrotron with Ferroelectric Cathode
Author(s):
M. Einat, M. Pilossof, R. Ben-Moshe, H. Hirshbein, D. Borodin
Source:
PHYSICAL REVIEW LETTERS
Vol./Issue/Date:
Volume: 109, Issue: 18, 31 October 2012
Year:
2012
Page(s):
185101 - 185101-5
Keywords:
Gyrotron, Ferrolectric Cathode
Abstract:
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 0:5 s pulses are reported; a duty cycle of 10% is estimated to be achievable.
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