# A sharp boundary model for the vertical and kink stability of large aspect-ratio vertically elongated tokamak plasmas

## Related Articles

- A new eigenvalue problem associated with the two-dimensional Newcomb equation without continuous... Tokuda, Shinji; Watanabe, Tomoko // Physics of Plasmas;Aug99, Vol. 6 Issue 8, p3012
Reports on an eigenvalue problem associated with the two-dimensional Newcomb equation in an axisymmetric toroidal plasma like a tokamak. Formulation of the eigenvalue problem where the weight functions are chosen; Singular behavior predicted by the theory of rational surfaces.

- Stability of resistive and ideal ballooning modes in the Texas Experimental Tokamak and DIII-D. McCarthy, D. R.; Guzdar, P. N.; Drake, J. F.; Antonsen, T. M.; Hassam, A. B. // Physics of Fluids B: Plasma Physics;Jul92, Vol. 4 Issue 7, p1846
The stability of drift resistive ballooning modes is examined using the reduced Braginskii equations, which include electron temperature and magnetic fluctuations. The Texas Experimental Tokamak (TEXT) [Phys. Fluids B 2, 2879 (1990)] edge plasma is found to be unstable for a broad range of mode...

- Dynamically stable, self-similarly evolving, and self-organized states of high beta tokamak and reversed pinch plasmas and advanced active control. Kondoh, Yoshiomi; Fukasawa, Toshinobu // Physics of Plasmas;Nov2009, Vol. 16 Issue 11, p112504
Generalized simultaneous eigenvalue equations derived from a generalized theory of self-organization are applied to a set of simultaneous equations for two-fluid model plasmas. An advanced active control by using theoretical time constants is proposed by predicting quantities to be controlled....

- Numerical analysis of drift resistive inertial ballooning modes. Tangri, V.; Rafiq, T.; Kritz, A. H.; Pankin, A. Y. // Physics of Plasmas;2014, Vol. 21 Issue 9, p1
Three numerical techniques employing differentiation matrices are used to investigate the linear stability of drift-resistive-inertial ballooning mode for conditions that occur in tokamak edge plasmas. Hermite and Sinc spectral methods are applied to compute the ballooning mode eigenvalues and...

- Global ballooning instabilities in a Heliotron J plasma. Yamagishi, Osamu; Nakamura, Yuji; Kondo, Katsumi; Nakajima, Noriyoshi // Physics of Plasmas;Aug2002, Vol. 9 Issue 8, p3429
The global ballooning stability in a Heliotron J plasma [M. Wakatani et al., Nucl. Fusion 40, 569 (2000)] is studied by use of the CAS3D code (code for analysis of stability in three-dimensional systems) [C. Schwab, Phys. Fluids 5, 3195 (1993)]. The global mode has strong toroidal mode coupling...

- Coherent nonlinear destabilization of tearing modes: The effect of the mass flow. Kleva, Robert G.; Drake, J. F.; Bondeson, Anders // Physics of Fluids (00319171);Aug85, Vol. 28 Issue 8, p2478
Three-dimensional tearing modes are shown to be linearly unstable in a helical equilibrium containing large-amplitude q = 2 magnetic islands and their associated plasma flow. The source of the instability is a steep current gradient which is formed at the inner separatrix of the q = 2 islands as...

- Finite orbit analysis for long wavelength modes in a plasma with a hot component. Hammer, James H.; Berk, H. L. // Physics of Fluids (00319171);Aug85, Vol. 28 Issue 8, p2442
The z-pinch model is used to calculate finite Larmor radius effects of a plasma with a hot component plasma annulus. The equations are analyzed for layer modes and the finite Larmor radius stabilization condition is calculated. Stability requires kÂ²ÏÂ²[sub h]RÎ²[sub h]/Î” ... 1,...

- Hamiltonian analysis of fast wave current drive in tokamak plasmas. Becoulet, A.; Fraboulet, D.; Giruzzi, G.; Moreau, D.; Saoutic, B.; Chinardet, J. // Physics of Plasmas;Sep94, Vol. 1 Issue 9, p2908
Discusses the use of the Hamiltonian formalism to address the problem of the direct resonant interaction between the fast magnetosonic wave and the electrons in a tokamak plasma. Intrinsic stochasticity of the electron trajectories in phase space; Assessment of the validity of the quasilinear...

- Advanced Spectroscopic Methods for Diagnosing Magnetic-Fusion-Plasmas. Oks, Eugene // AIP Conference Proceedings;2002, Vol. 635 Issue 1, p282
The following topics are presented: 1) diagnostic of the temperature and of the electron density at the edge plasma of tokamaks, including the divertor region; 2) mapping microwave fields in tokamak plasmas; 3) effect of plasma environment on charge exchange.