Linear theory of Alfven Eigenmodes in tokamak plasmas
Creators
- 1. Graduate School of Engineering, Kyoto, Kyoto Univ. (Japan)
Description
Theoretical and numerical studies on the linear stability of Alfven Eigenmodes in tokamak plasmas are reviewed. The behavior of various Alfven Eigenmodes (AE), such as Toroidicity-induced AE (TAE), ellipticity-induced AE, non-circular AE, kinetic TAE, beta-induced AE, and energetic particle mode are described. Alfven Eigenmodes are excited when the destabilization by fast ions overcomes numerous stabilization mechanisms, such as continuum damping., Landau damping of electrons and fast ions, collisional damping of trapped electrons, and radiative damping due to kinetic Alfven waves. Features of several TAE linear stability codes are tabulated. The NOVA-Kcode is described at some length and its computational results are compared with analytical predictions and experimental results. (author)
Additional details
Publishing Information
- Journal Title
- Purazuma, Kaku Yugo Gakkai-Shi
- Journal Volume
- 75
- Journal Issue
- 5
- Journal Page Range
- p. 537-547
- ISSN
- 0918-7928
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 30040630
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- ALFVEN WAVES; COMPUTERIZED SIMULATION; EIGENFUNCTIONS; EXCITATION; INSTABILITY GROWTH RATES; ION BEAMS; PLASMA MACROINSTABILITIES; TOKAMAK DEVICES
- Descriptors DEC
- BEAMS; CLOSED PLASMA DEVICES; ENERGY-LEVEL TRANSITIONS; FUNCTIONS; HYDROMAGNETIC WAVES; INSTABILITY; PLASMA INSTABILITY; SIMULATION; THERMONUCLEAR DEVICES