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Generation of radial electric field in the process of full reconnection by kinetic kink mode
Earth, Planets and Space volume 53, pages565–570(2001)
Effects of density gradient on the kinetic m = 1 (m/n = 1/1) internal kink mode in a cylindrical tokamak plasma are studied by the gyro-kinetic particle simulations. When the density gradient is not large enough to change the full reconnection process, the phenomena after the full reconnection, such as the plasma flow and the secondary reconnection, are changed considerably due to the self-generated radial electric field, i.e. the m/n = 0/0 mode. The growing mechanism is explained by the difference of E × B drift motion between ions and electrons, which is caused by the fast parallel motion of electron.
Biskamp, D. and J. F. Drake, Dynamics of the sawtooth collapse in tokamak plasmas, Phys. Rev. Lett., 73, 971–974, 1994.
Campbell, D. J., R. D. Jill, C. W. Gowers, etal., Sawtooth activity in Ohmically heated JET plasmas, Nuclear Fusion, 26, 1085, 1986.
Hamada, Y., A. Nishizawa, Y. Kawasumi, et al., Fast potential change during sawteeth in JIPP T-IIU tokamak plasmas, Nuclear Fusion, 36, 515–520, 1996.
Kadomtsev, B. B., Disruptive instability in tokamaks, Sov. J. Plasma Phys., 1, 389–391, 1975.
Lee, W. W., Nonlinear gyrokinetic equations, Phys. Fluids, 26, 556–562, 1983.
Matsumoto, T., S. Tokuda, Y. Kishimoto, et al., Gyro-kinetic particle simulation of m= 1 internal kink mode in the process of density gradient, J. Plasma and Fusion Research, 75, 1188–1194, 1999.
Naitou, H., K. Tsuda, W. W. Lee, and R. D. Sydora, Gyrokinetic simulation of internal kink modes, Phys. Plasma, 2, 4257–4268, 1995.
Naitou, H., T. Sonoda, S. Tokuda, and V. K. Decyk, Parallelization of gyrokinetic particle code and its application to internal kink mode simulation, J. Plasma and Fusion Research, 72, 259–269, 1996.
Parker, S. E. and W. W. Lee, A fully nonlinear characteristic method for gyrokinetic simulation, Phys. Fluids, B5, 77–86, 1993.
Wesson, J. A., Sawtooth reconnection, Nuclear Fusion, 30, 2545–2549, 1990.
West, W. P., D. M. Thomas, and J. S. de Grassie, Measurement of the rotational transform at the axis of a tokamak, Phys. Rev. Lett, 58, 2758–2761, 1987.
Zakharov, L. and B. Rogers, Two-fluid magnetohydrodynamic description of the internal kink mode in tokamaks, Phys. Fluids, B4, 3285–3301, 1992.
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Matsumoto, T., Tokuda, S., Kishimoto, Y. et al. Generation of radial electric field in the process of full reconnection by kinetic kink mode. Earth Planet Sp 53, 565–570 (2001). https://doi.org/10.1186/BF03353271
- Magnetic Reconnection
- Linear Growth Rate
- Radial Electric Field
- Kink Mode
- Electron Inertia