Published November 1997
| Version v1
Journal article
Kinetic ballooning modes at the tokamak transport barrier with negative magnetic shear
Creators
- 1. Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, 801-01 Mukoyama, Naka, Ibaraki 311-01 (Japan)
- 2. Plasma Physics Laboratory, University of Saskatchewan, Saskatoon, Saskatchewan S7N5E2 (Canada)
Description
Stability of the kinetic ballooning modes is investigated for plasma parameters at the internal transport barrier in tokamak discharges with negative magnetic shear employing a kinetic shooting code with long shooting distance. It is found that the second stability regime with respect to the pressure gradient parameter, which was predicted for negative shear [A. Hirose and M. Elia, Phys. Rev. Lett. 76, 628 (1996)], can possibly disappear. The mode with comparatively low toroidal mode number and mode frequency below 100 kHz is found to be destabilized marginally only around the transport barrier characterized by steep pressure and density gradients. copyright 1997 American Institute of Physics
Additional details
Publishing Information
- Journal Title
- Physics of Plasmas
- Journal Volume
- 4
- Journal Issue
- 11
- Journal Page Range
- p. 4031-4034.
- ISSN
- 1070-664X
- CODEN
- PHPAEN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 29010817
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- BALLOONING INSTABILITY; CHARGED-PARTICLE TRANSPORT; ELECTRIC DISCHARGES; PLASMA DENSITY; PLASMA PRESSURE; SHEAR; TOKAMAK DEVICES
- Descriptors DEC
- CLOSED PLASMA DEVICES; INSTABILITY; PLASMA INSTABILITY; PLASMA MACROINSTABILITIES; RADIATION TRANSPORT; THERMONUCLEAR DEVICES