Title :
Observation of Mode Competition in an 11.4-GHz Magnicon Amplifier
Author :
Gold, H. ; Fliflet, Arne W. ; Hornstein, Melissa K. ; Kinkead, Allen K.
Author_Institution :
Naval Res. Lab. Washington, Washington
Abstract :
Summary form only given. We will describe the observation of a parasitic 8.05-GHz gyrotron mode in an 11.4-GHz frequencv-doubling magnicon amplifier experiment. The parasitic mode occurred only at high operating powers, when the beam transverse momentum was high, and caused a form of output pulse shortening. That is, tens or hundreds of nanoseconds after the magnicon mode turned on, the gyrotron mode would grow to high power, causing the amplitude of the magnicon mode to fall off. We will compare the behavior of the magnicon and gyrotron modes to the predictions of time-dependent multimode simulations.
Keywords :
gyrotrons; microwave amplifiers; beam transverse momentum; frequencv-doubling magnicon amplifier; frequency 11.4 GHz; gyrotron mode; gyrotron modes; mode competition; pulse shortening; time-dependent multimode simulations; Electromagnetic radiation; Electron beams; Frequency; Gold; Gyrotrons; High power amplifiers; Physics; Plasma devices; Pulse amplifiers; Radiofrequency amplifiers;
Conference_Titel :
Plasma Science, 2007. ICOPS 2007. IEEE 34th International Conference on
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0915-0
DOI :
10.1109/PPPS.2007.4346220
