li zhi-qiang, shu ting, qian bao-liang. Particle simulation of beam quality effects on the operation of a vircator[J]. High Power Laser and Particle Beams, 2003, 15.
Citation:
li zhi-qiang, shu ting, qian bao-liang. Particle simulation of beam quality effects on the operation of a vircator[J]. High Power Laser and Particle Beams, 2003, 15.
li zhi-qiang, shu ting, qian bao-liang. Particle simulation of beam quality effects on the operation of a vircator[J]. High Power Laser and Particle Beams, 2003, 15.
Citation:
li zhi-qiang, shu ting, qian bao-liang. Particle simulation of beam quality effects on the operation of a vircator[J]. High Power Laser and Particle Beams, 2003, 15.
This paper presents the simulation results of beam quality effects on the operation of a vircator with a 2.5 dimension particle in cell(PIC) code. The simulation results show that the front edge of the beam pulse has nearly no effect on the saturated microwave output, while a short steep front edge can accelerate the saturation of virtual cathode oscillation, and that the beam pulse width had better be over 16ns. According to the simulation, the microwave efficiency is decreased to 1.5% from 3.8% in the monoenergetic case when the energy spread of the beam electrons is 5%, and beam quality except the energy spread has almost no effect on microwave frequency.
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