On the stability of the internal kink mode in the banana regime

Journal Article · Sun Jan 01 00:00:00 EST 1995 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.871094· OSTI ID:164971

Fogaccia, G; Romanelli, F ^[1]

---

1. Associazione EURATOM-ENEA sulla Fusione, C.R.E. Frascati, C.P. 65 00044, Frascati, Roma (Italy)

The stability of the internal kink mode is investigated taking into account the kinetic response associated to the trapped thermal ions. Ion--ion collisions and diamagnetic effects in the layer are also considered. A significant stabilizing contribution is obtained, even at low-{beta} values, on the mode, which might be stable, on present experiments, even though predicted unstable according to the Bussac criterion [Bussac {ital et} {ital al}., Phys. Rev. Lett. {bold 35}, 1638 (1975)]. In addition, a trapped-ion instability is found, characterized by mode frequency of the order of the trapped-ion bounce-averaged magnetic drift frequency. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.

• OSTI ID: 164971
• Journal Information: Physics of Plasmas, Vol. 2, Issue 1; Other Information: PBD: Jan 1995
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION
TOKAMAK DEVICES
KINK INSTABILITY
BANANA REGIME
TRAPPED-PARTICLE INSTABILITY
ION-ION COLLISIONS
DIAMAGNETISM
MAGNETOHYDRODYNAMICS
LOW-BETA PLASMA
MEDIUM-BETA PLASMA