Title :
Experimental investigation of 94 GHz second-harmonic gyrotrons
Author :
Xin-jian, Niu ; Li, Wang ; Hong-fu, Li
Author_Institution :
Vacuum Electron. Nat. Lab., Inst. of High Energy Electron., Chengdu, China
Abstract :
A second-harmonic gyrotron intended as a compact lightweight source has been designed. 94-GHz gyrotron is driven by a 51-kV 11.8-A (nuperp/nuz = 1.32, Deltanuz/nuz = 3%) electron beam from a magnetron injection gun and employs a low-loss TE021/TE031 complex cavity for mode control. A pulse output power of 156kW is obtained with cryogen-free superconducting magnet for the gyrotron, magnetic field 1.67T with operating frequency 94GHz, corresponding to an efficiency of 26%.
Keywords :
electron beams; gyrotrons; magnetic fields; superconducting magnets; compact lightweight source; cryogen-free superconducting magnet; current 11.8 A; electron beam; frequency 94 GHz; magnetic field; magnetron injection gun; mode control; power 156 kW; second-harmonic gyrotrons; voltage 51 kV; Cyclotrons; Frequency conversion; Gyrotrons; Magnetic field measurement; Magnetic fields; Millimeter wave radar; Power generation; Pulse measurements; Superconducting magnets; Voltage; complex cavity; cryogen-free magnet; gyrotron; magnetron injection gun; second-harmonic;
Conference_Titel :
Vacuum Electronics Conference, 2009. IVEC '09. IEEE International
Conference_Location :
Rome
Print_ISBN :
978-1-4244-3500-5
Electronic_ISBN :
978-1-4244-3501-2
DOI :
10.1109/IVELEC.2009.5193597
