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PIERS Online
Vol. 3
No. 6
2007
pp: 911-915Analytical Design and Simulation Rescaling of Magnetically Insulated Transmission LinesXiangmin Jin and Jiansheng Yuan doi:10.2529/PIERS060907211706 Downloads: 1004 Abstract:Analytical solution and numerical simulation are two effective approaches for analyzing and designing the vacuum magnetically insulated transmission lines (MITLs) in multi-terawatts applications. It is introduced in this paper a scheme for designing a tapered-electrode-radius MITL used in the linear induction accelerator utilizing the laminar flow model to match self-limited anode currents of each segment. This preliminary design is validated with particle-in-cell numerical simulations. In order to enhance the power transportation efficiency the MITL has to be rescaled with the help of particle-in-cell simulations, so that the MITL operates in the load-limited equilibria with smaller amount of space electron flow. The design based on the numerical simulation is presented in this paper. However, the modification will cause more simulations and complicated manufactures.References:1. Humphries Jr., S., Charged Particle Beams, Wiley-Interscience, New York, 1990. 2. DiCapua, M. S., "Magnetic insulation," IEEE Trans. Plasma Sci., Vol. 11, No. 3, 205-215, 1983. 3. Goplen, B., L. Ludeking, D. Smithe, and G. Warren, "User-configurable MAGIC for electromagnetic PIC calculations," Comp. Phys. Comu., Vol. 86, 54-86, 1995. 4. Mazarkis, M. G., J. W. Poukey, D. L. Smith, and et al., "SABRE modification to a higher voltage high impedance inductive voltage adder (IVA)," Proc. 11th IEEE Plasma Science Conf., 192, 1996. 5. Lockner, T. R. and J. W. Poukey, "Comparison of one-dimensional simulations of magnetically insulated gaps with analytic models," J. Appl. Phys., Vol. 57, No. 7, 2652-2653, 1985. 6. Hiraoka, K., M. Nakajima, M. Shiho, and et al., "Electron flow through geometrical discontinuity in coaxial magnetically insulated transmission lines," Jpn. J. Appl. Phys., Vol. 39, No. 9, 5280-5286, 2000. 7. Mazarkis, M. G., J. W. Poukey, D. L. Smith, and et al., "SABRE modification to a higher voltage high impedance inductive voltage adder (IVA)," Proc. 11th IEEE Plasma Science Conf., 192, 1996. 8. Wang, M. Y. and M. S. DiCapua, "Operating point of long magnetically insulated vacuum transmission lines," J. Appl. Phys., Vol. 51, No. 11, 5610-5614, 1980. |
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