Toroidal Electric Field Effect and Non-Linear Effect on Electron Cyclotron Current Drive in the JT-60U
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- SUZUKI Takahiro
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute
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- IDE Shunsuke
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute
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- HAMAMATSU Kiyotaka
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute
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- PETTY C.C.
- General Atomics
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- LAO L.L.
- General Atomics
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- ISAYAMA Akihiko
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute
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- FUJITA Takaaki
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute
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- IKEDA Yoshitaka
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute
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- SEKI Masami
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute
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- MORIYAMA Shinichi
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute
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- FUKUYAMA Atsushi
- Graduate School of Engineering, Kyoto University
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Abstract
Recent progress in the development of electron cyclotron heating⁄current drive systems in regard to power and pulse duration have allowed the extension of two normalized parameters (toroidal electric field Eφ and wave power density p). In the extended regime, the conventional theory requires consideration of a distorted electron distribution function. The first validation of the ECCD theory in the extended regime having large Eφ and p is presented. Linear calculation has a tendency to overestimate the EC driven current, as normalized parameters for Eφ and p increase. While the EC driven current IEC obtained by a linearized Fokker-Planck calculation (1.1 MA) did not agree with the measured EC driven current (0.74 ± 0.06MA), non-linear calculation of the Fokker-Planck equation considering the effect of Eφ (0.76 MA) shows close agreement with the experimental result. Calculations show that the decreasing effect of Eφ on IEC was stronger than the increasing effect of p on IEC in the experiment.
Journal
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- Journal of Plasma and Fusion Research
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Journal of Plasma and Fusion Research 80 (6), 511-515, 2004
The Japan Society of Plasma Science and Nuclear Fusion Research
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Details
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- CRID
- 1390282681490207744
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- NII Article ID
- 110003827720
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- NII Book ID
- AN10401672
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- COI
- 1:CAS:528:DC%2BD2cXntVymsrk%3D
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- NDL BIB ID
- 7011429
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- ISSN
- 09187928
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
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- Abstract License Flag
- Disallowed