Title :
Design and Cold-Testing of a High Gain, Frequency-Doubling Gyroklystron
Author :
Lawson, W. ; Hogan, B. ; Gebeyehu, N. ; Krumrine, M. ; Purohit, P. ; Stamatiou, I. ; Tiwari, Sunita
Author_Institution :
Inst. for Res. in Electron. & Appl. Phys., Maryland Univ., College Park, MD
Abstract :
Summary form only given. At the University of Maryland, we have been evaluating the use of gyroklystrons to drive RF accelerators. In order to use our 500 kV, 500 A system to energize a 17 GHz accelerator structure built by the Haimson Research Corporation, we need a large-signal gain of nearly 50 dB. To accomplish this goal, we have designed a six-cavity circuit in which the first three cavities operate near the cyclotron frequency and the last three cavities operate near the second harmonic. Adequate efficiencies are predicted via numerical simulations with the MAGYKL code even for average perpendicular to parallel velocity ratios as low as one. Efficiencies as high as 35% and output powers above 80 MW will be possible if an average velocity ratio of 1.4 can be achieved. Details of these simulations, along with cold test results for the microwave tube, will be presented
Keywords :
gyrotrons; klystrons; microwave generation; microwave tubes; 17 GHz; 500 A; 500 kV; MAGYKL code; RF accelerators; cyclotron frequency; frequency-doubling gyroklystron; microwave tube; numerical simulations; six-cavity circuit; Design engineering; Electromagnetic measurements; Electron emission; Frequency; Klystrons; Microwave devices; Particle accelerators; Physics computing; Plasma accelerators; Pulse measurements;
Conference_Titel :
Plasma Science, 2005. ICOPS '05. IEEE Conference Record - Abstracts. IEEE International Conference on
Conference_Location :
Monterey, CA
Print_ISBN :
0-7803-9300-7
DOI :
10.1109/PLASMA.2005.359243