30 August 1993 High speed diagnostic study of pulsed, cold cathode, gyrotrons
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Proceedings Volume 2104, 18th International Conference on Infrared and Millimeter Waves; 21046F (1993) https://doi.org/10.1117/12.2298663
Event: 18th International Conference on Infrared and Millimeter Waves, 1993, Colchester, United Kingdom
Abstract
Results are reported of plasma formation in the diode of a pulsed cold-cathode gyrotron. Streakphotography has been used to provide direct evidence of certain aspects of the plasma behaviour. Whencoupled to measurements of the simultaneous millimetre wave output of the gyrotron and the collapsingelectrical impedance of the diode gap, these experiments demonstrate the role of the plasma interminating the millimetre wave output pulse. Complementary experiments have used high speedframing photography to observe the spatial distribution of the cathode 'hot spots' as a function of theinsulating magnetic field strength, during the low voltage arc discharge, subsequent to the terminationof the gyrotron output. These diagnostic techniques have been applied to investigate the suitability ofdifferent cathode materials as plasma flare sources for high power gyrotron oscillators.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
K. Ronald, K. Ronald, "High speed diagnostic study of pulsed, cold cathode, gyrotrons", Proc. SPIE 2104, 18th International Conference on Infrared and Millimeter Waves, 21046F (30 August 1993); doi: 10.1117/12.2298663; https://doi.org/10.1117/12.2298663
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