Direct Evaluation of Spatio-Temporal Change in Current Density Profile Applied to a Discharge with Neo-Classical Tearing Mode
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- SUZUKI Takahiro
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute
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- OIKAWA Toshihiro
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute
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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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Abstract
An analytical method to evaluate spatio-temporal change in the current density profile directly from the motional Stark effect (MSE) diagnostic is applied to a discharge, where a neo-classical tearing mode (NTM) appeared and was stabilized by electron cyclotron current drive (ECCD). The analysis clearly shows a spatially localized decrease in current density at the magnetic island location, implying a decrease in bootstrap current due to a flattening of the pressure profile within the island. When the NTM is stabilized after the start of the ECCD application, an increase in current density at the island location is observed.
Journal
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- Journal of Plasma and Fusion Research
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Journal of Plasma and Fusion Research 80 (5), 362-363, 2004
The Japan Society of Plasma Science and Nuclear Fusion Research
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Keywords
Details 詳細情報について
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- CRID
- 1390001206513958528
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- NII Article ID
- 110003827688
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- NII Book ID
- AN10401672
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- COI
- 1:CAS:528:DC%2BD2cXlvFWiur8%3D
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- ISSN
- 09187928
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- NDL-Digital
- CiNii Articles
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- Abstract License Flag
- Disallowed