Title :
P1–25: CW microwave radiation source from Micro-Hollow Cathode plasma Discharge
Author :
Wong, Michael C. ; Hunt, Charles E. ; Brodie, Ivor ; Kolner, Brian H.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of California, Davis, CA, USA
Abstract :
A continuous-wave microwave radiation source is under investigation using Micro-Hollow Cathode Discharge (MHCD) technology. Arrays of grooves, 50 microns in diameter and ~3 mm long have been fabricated to contain the plasma discharge. Argon discharge in the resonance cavity has been observed at atmospheric pressure. The turn-on voltage was observed to be 400V (383μA). Lowering the voltage to 310V (~100μA) extinguished the plasma. Increasing the applied voltage to 400V (430μA), a broad-spectrum radiation with center frequency at 131MHz was measured.
Keywords :
argon; cathodes; discharges (electric); plasma sources; argon discharge; atmospheric pressure; broad-spectrum radiation; continuous-wave microwave radiation source; micro-hollow cathode discharge; resonance cavity; Argon; Atmospheric-pressure plasmas; Cathodes; Fault location; Frequency; Microwave technology; Plasma measurements; Plasma sources; Resonance; Voltage; MHCD; micro-hollow cathode discharge; microwave; plasma discharge; terahertz radiation;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2010 IEEE International
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4244-7098-3
DOI :
10.1109/IVELEC.2010.5503560
