Energetic particle physics in JT-60U and JFT-2M
Creators
- 1. Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Naka, Ibaraki, 311-0193 (Japan)
- 2. Department of Nuclear Engineering, Kyoto University, 606-8501, (Japan)
- 3. Princeton Plasma Physics Laboratory, PO Box 451, Princeton, NJ 08543 (United States)
- 4. National Institute for Fusion Science, Oroshi-cho, Toki, Gifu, 509-5292, (Japan)
Description
Recent energetic particle physics research in JT-60U and JFT-2M is reported. Alfven eigenmodes (AEs) are investigated in reversed-shear (RS) plasmas in JT-60U where frequency sweeping (FS) modes are observed to follow the q-profile evolution. The RS-induced AE model can explain the FS of the modes within the context of an evolving q-profile. Enhanced energetic ion transport is also investigated with the appearance of modes in the toroidicity-induced AE range of frequency in JT-60U using a multi-channel neutron profile monitor and in JFT-2M using a lost ion probe. Additionally, the ripple loss in the complex toroidal field ripple due to ferritic steel inserts in JFT-2M is shown and compared with model analysis. The simulation code developed to predict ripple loss in JFT-2M will be of use in estimating the heat flux in the complex ripple field of a future device such as ITER
Availability note (English)
Available online at http://stacks.iop.org/0741-3335/46/S31/ppcf4_7_S03.pdf or at the Web site for the journal Plasma Physics and Controlled Fusion (ISSN 1361-6587) http://www.iop.org/Additional details
Identifiers
- URL
- http://stacks.iop.org/0741-3335/46/S31/ppcf4_7_S03.pdf; http://www.iop.org/;
- DOI
- 10.1088/0741-3335/46/7/S03;
- PII
- S0741-3335(04)71853-9;
Publishing Information
- Journal Title
- Plasma Physics and Controlled Fusion
- Journal Volume
- 46
- Journal Issue
- 7
- Journal Page Range
- p. S31-S45
- ISSN
- 0741-3335
- CODEN
- PPCFET
Conference
- Title
- 8. IAEA technical meeting on energetic particles in magnetic confinement systems
- Dates
- 6-8 Oct 2003
- Place
- San Diego, CA (United States)
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 35080876
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ALFVEN WAVES; HEAT FLUX; ION PROBES; JFT-2M TOKAMAK; JT-60U TOKAMAK; MAGNETIC FIELD RIPPLES; PLASMA; REVERSED SHEAR
- Descriptors DEC
- CLOSED PLASMA DEVICES; HYDROMAGNETIC WAVES; MAGNETIC FIELD CONFIGURATIONS; PROBES; THERMONUCLEAR DEVICES; TOKAMAK DEVICES