xing qing-zi, wang dong, huang feng, et al. Theoretical analysis and simulation study on inward-emitting coaxial vircator[J]. High Power Laser and Particle Beams, 2006, 18.
Citation:
xing qing-zi, wang dong, huang feng, et al. Theoretical analysis and simulation study on inward-emitting coaxial vircator[J]. High Power Laser and Particle Beams, 2006, 18.
xing qing-zi, wang dong, huang feng, et al. Theoretical analysis and simulation study on inward-emitting coaxial vircator[J]. High Power Laser and Particle Beams, 2006, 18.
Citation:
xing qing-zi, wang dong, huang feng, et al. Theoretical analysis and simulation study on inward-emitting coaxial vircator[J]. High Power Laser and Particle Beams, 2006, 18.
One-dimensional theoretical analysis is presented for the inward-emitting coaxial virtual cathode oscillator. Numerical solutions are given for the relationship of the diode voltage and current, the space-charge limited current in the coaxial drift space, and the position of the virtual cathode. Full three-dimensional numerical simulation with the PIC method is carried out using the TS3 module of the MAFIA code. The distance between the cathode emission region and anode reflector is optimized by monitoring the frequency spectrum and output power of the propagating modes in the cylindrical output waveguide. Results show that TE11 and TM01 modes between them there exists mode competition are both the dominant modes even with the axisymmetric configuration. Based on the previous optimization,
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