TY - JOUR
T1 - Physics of edge plasmas in enhanced confinement modes
AU - Itoh, S. I.
AU - Itoh, K.
AU - Fukuyama, A.
N1 - Funding Information:
Authors cordially acknowledge collaboration and discussion with Dr. M. Azumi and Dr. M. Yagi. They also wish to thank continuous discussion with and enlightenment by Prof. F. Wagner, Prof. K. Lackner and ASDEX Team and Wendelstein-AS Group, Dr. Y. Miura, Dr. H. Maeda, Dr. M. Mori and JFT-2M Group, Prof. T. Ohkawa, Dr. T.S. Taylor and D-III D Group, Dr. S. Tsuji, Dr. M. Shimada and JT-60 Group, Dr. M. Keilhacker and JET Team, Dr. K. Ida and JIPP-TIIU Group, Dr. H. Zohm and ASDEX-U Group, Prof. S. Itoh and TRIAM-1M Group, Dr. J.W. Connor, Dr. K. Hanada, Dr. N. Ueda and Prof. S. Yoshikawa. Comments on the manuscript by referees are also helpful. This work is partly supported by the Grant-in-Aid for Scientific Research of MoE Japan and by the collaboration program of Advanced Fusion Research Center of Kyushu University.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1995
Y1 - 1995
N2 - In this article, the physics of various enhanced confinement modes are reviewed. After the discovery of the H-mode, many enhanced confinement modes have been observed. Various kinds of enhanced confinement modes are surveyed first. Typical features of enhanced confinement are the edge pedestal, the density peaking in the core, the modification of the current profile, and the internal transport barrier. Physical processes, which allow these improvements, are explained in terms of the radial electric field structure and magnetic field structure. The influence of the edge and SoL plasma on the core improvement is also explained. An emphasis is made on the role of neutrals in the dynamics of enhanced confinement, illuminating the importance of PSI studies in realizing better enhanced confinement. Perspectives for the steady state plasma are also discussed.
AB - In this article, the physics of various enhanced confinement modes are reviewed. After the discovery of the H-mode, many enhanced confinement modes have been observed. Various kinds of enhanced confinement modes are surveyed first. Typical features of enhanced confinement are the edge pedestal, the density peaking in the core, the modification of the current profile, and the internal transport barrier. Physical processes, which allow these improvements, are explained in terms of the radial electric field structure and magnetic field structure. The influence of the edge and SoL plasma on the core improvement is also explained. An emphasis is made on the role of neutrals in the dynamics of enhanced confinement, illuminating the importance of PSI studies in realizing better enhanced confinement. Perspectives for the steady state plasma are also discussed.
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U2 - 10.1016/0022-3115(94)00629-6
DO - 10.1016/0022-3115(94)00629-6
M3 - Article
AN - SCOPUS:0000433946
VL - 220-222
SP - 117
EP - 131
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
SN - 0022-3115
ER -