Title :
Experiment and Simulation of a W-Band CW 30 kW Low-Voltage Conventional Gyrotron
Author :
Zhi Hui Geng ; Yi Nong Su ; Pu Kun Liu ; Shou Xi Xu ; Wei Gu ; Gao Feng Liu ; Chao Hai Du ; Hu Wang
Author_Institution :
Key Lab. of High Power Microwave Sources & Technol., Inst. of Electron., Beijing, China
Abstract :
In this paper, a continuous wave (CW) low-voltage fundamental harmonic W-band gyrotron has been designed and simulated with the help of a particle-in-cell (PIC) software CHIPIC. The output power of 33.4 kW with an electron efficiency 37.1% in the PIC simulation is obtained by the designed conventional gyrotron employing a 30-kV, 3-A electron beam which is produced by a triode magnetron injection gun. In addition, a high-power capacity collector being one of the key components of CW gyrotrons has been evaluated and tested. The peak power density on the collector wall using the spreading electron system is about 390 W/cm2 in the hot test. The CW output power of 15.8 kW is achieved with the condition of a 29-kV, 1.8-A electron beam in the hot-test experiment of the designed prototype.
Keywords :
electron beams; gyrotrons; magnetrons; millimetre wave oscillators; triodes; CHIPIC; CW gyrotrons; PIC software; W-band CW; continuous wave; current 1.8 A; current 3 A; electron beam; high-power capacity collector; hot-test experiment; low-voltage fundamental harmonic W-band gyrotron; particle-in-cell; power 15.8 kW; power 30 kW; power 33.4 kW; power density; spreading electron system; triode magnetron injection gun; voltage 29 kV; Cavity resonators; Density measurement; Electron beams; Gyrotrons; Oscillators; Power generation; Power system measurements; CW; W-band; W-band.; gyrotron; low-voltage; simulation;
Journal_Title :
Electron Devices, IEEE Transactions on
DOI :
10.1109/TED.2013.2295269
