Title :
Amplification studies of a multi-megawatt two-cavity X-band gyroklystron
Author :
Lawson, W. ; Calame, J. ; Latham, P.E. ; Hogan, B. ; Striffler, C.D. ; Read, M.E. ; Specht, V. ; Main, W. ; Reiser, M. ; Granatstein, V.L.
Author_Institution :
Lab. for Plasma Res., Maryland Univ., College Park, MD, USA
Abstract :
The authors are working to develop high-power gyroklystron amplifiers with properties suitable for driving future electron-positron colliders. Initial experiments have involved a sequence of six different two-cavity configurations, operating in the TE/sub 01/ mode near 9.85 GHz. Each design was modified in accordance with its predecessor´s performance to either improve tube stability or enhance amplifier operation (or both). The energy is derived from a rotating beam in 300-440 kV, 100-200 A, 1- mu s pulses. With perpendicular-to-parallel velocity ratios near one, the studies have culminated in peak powers approaching 24 MW, with efficiencies and large-signal gains of 33% and 34 dB, respectively. The experimental setup is described, and amplifier performance of the most recent configuration is discussed.<>
Keywords :
electron accelerators; gyrotrons; klystrons; microwave amplifiers; pulsed power technology; 1 mus; 100 to 200 A; 24 MW; 300 to 440 kV; 33 percent; 34 dB; 9.85 GHz; TE/sub 01/ mode; amplifier performance; electron-positron colliders; high-power gyroklystron amplifiers; multi-megawatt two-cavity X-band gyroklystron; rotating beam; tube stability; two-cavity configurations; Circuits; Educational institutions; Klystrons; Laboratories; Magnetic fields; Plasma properties; Power measurement; Pulse amplifiers; Pulse measurements; Pulse modulation;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.164395
