Nuclear Fushion | |
Effects of core stochastization on particle and momentum transport | |
article | |
Yoshiaki Ohtani1  Kenji Tanaka2  Hiroe Igami2  Katsumi Ida2  Yasuhiro Suzuki2  Yuki Takemura2  Hayato Tsuchiya2  Mike Sanders3  Mikirou Yoshinuma2  Tokihiko Tokuzawa2  Ichihiro Yamada2  Ryo Yasuhara2  Hisamichi Funaba2  Mamoru Shoji2  Takahiro Bando1  LHD Experimental Group2  | |
[1] Naka Fusion Institute, National Institutes for Quantum and Radiological Science and Technology;National Institute for Fusion Science;Eindhoven University of Technology | |
关键词: stochastic magnetic field; particle transport; momentum transport; helical device; modulation experiment; | |
DOI : 10.1088/1741-4326/abd6b1 | |
来源: Institute of Physics Publishing Ltd. | |
【 摘 要 】
The effects of the stochastic magnetic field in a plasma center produced by electron cyclotron current drive (ECCD) on transport have been revealed. Because the electron temperature profile is flat in the core region, in the case of counter-directed ECCD (ctr-ECCD) against the toroidal magnetic field, the magnetic field is stochastic in the core region with rotational transformᵼ∼ 1/3. The particle diffusion coefficient of the ctr-ECCD plasma is approximately 20 times as large as that of the plasma without the stochastic magnetic field produced by co-directed ECCD (co-ECCD) at the maximum. Furthermore, in the stochastic magnetic field with ctr-ECCD, counter-directed intrinsic rotation is observed in the plasma with balanced NBI discharge.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO202307170000257ZK.pdf | 1831KB | download |