Title :
Operating characteristics of 17.14 GHz frequency-doubling coaxial gyroklystrons
Author :
Gouveia, E.S. ; Lawson, W. ; Castle, M. ; Granatstein, V. ; Hogan, B. ; Spassovsky, I. ; Reiser, M.
Author_Institution :
Maryland Univ., College Park, MD, USA
Abstract :
In this paper we describe the present status of the gyroklystron program at the University of Maryland. We are presently studying multi-cavity gyroklystron microwave tubes as possible drivers for future linear colliders. A 3 cavity second harmonic circuit has produced about 28 MW of peak power with an efficiency of about 13% and gain of approximately 26 dB. Further investigation of this circuit was impeded by technical problems relating to the performance of a defective annular emitter. A 4 cavity circuit has been designed, constructed and is about to undergo testing. Computer simulations performed on this design yield a theoretical prediction of 80 MW of peak power with an efficiency of 35% and a gain of 60 dB. Additionally, a new output waveguide system has been designed. to allow coupling of our 4 cavity circuit to an accelerator structure
Keywords :
gyrotrons; klystrons; 17.14 GHz; 26 dB; 28 MW; 60 dB; 80 MW; University of Maryland; coaxial gyroklystrons; efficiency; frequency-doubling; gain; Circuit testing; Coaxial components; Computer simulation; Coupling circuits; Driver circuits; Frequency; Impedance; Klystrons; Performance gain; Power system harmonics;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.986537
