Published January 1989
| Version v1
Journal article
Coupling properties of the JT-60 ICRF antenna during H-mode discharges
- 1. Japan Atomic Energy Research Inst., Naka, Ibaraki (Japan). Naka Fusion Research Establishment
Description
An increase of the coupling resistance of an ICRF 2x2 phased loop antenna array after H-mode transition was first observed in JT-60. The coupling resistance of the ICRF antenna decreases after H-mode transition in the (0,0) antenna phasing (toroidal phase difference), but it increases in the (π,0) antenna phasing (poloidal phase difference). This different behaviour can be explained by antenna-plasma coupling theory, taking the antenna phasings and the electron density profiles into account. The coupling resistance can be kept constant after H-mode transition by adjusting the toroidal wave number spectra of the antenna currents. (author). Letter-to-the-editor. 13 refs, 5 figs
Additional details
Publishing Information
- Journal Title
- Nuclear Fusion
- Journal Volume
- 29
- Journal Issue
- 1
- Series
- Nucl. Fusion.
- Journal Page Range
- 73-77
- ISSN
- 0029-5515
- CODEN
- NUFUA
INIS
- Country of Publication
- International Atomic Energy Agency (IAEA)
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 20035690
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- ANTENNAS; COUPLING; H-MODE PLASMA CONFINEMENT; ICR HEATING; IMPEDANCE; JT-60 TOKAMAK; PLASMA DENSITY; PLASMA SCRAPE-OFF LAYER
- Descriptors DEC
- BOUNDARY LAYERS; CLOSED PLASMA DEVICES; CONFINEMENT; ELECTRICAL EQUIPMENT; EQUIPMENT; HEATING; HIGH-FREQUENCY HEATING; LAYERS; PLASMA CONFINEMENT; PLASMA HEATING; THERMONUCLEAR DEVICES; TOKAMAK DEVICES
Optional Information
- Collaborations
- JT-60 Team.