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Author Han, Hyunsun ♦ In, Y. ♦ Jeon, Y. M. ♦ Hahn, S. H. ♦ Lee, K. D. ♦ Nam, Y. U. ♦ Yoon, S. W. ♦ Lee, H. Y.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PLASMA PHYSICS AND FUSION TECHNOLOGY ♦ AXIAL SYMMETRY ♦ BEAM INJECTION ♦ DISTURBANCES ♦ EDGE LOCALIZED MODES ♦ ELECTRON TEMPERATURE ♦ MOLECULAR BEAMS ♦ PERTURBATION THEORY ♦ PLASMA DENSITY ♦ PULSES ♦ THREE-DIMENSIONAL CALCULATIONS ♦ TOKAMAK DEVICES
Abstract The change of tokamak plasma behavior by supersonic molecular beam injection (SMBI) was investigated by applying a three-dimensional magnetic perturbation that could suppress edge localized modes (ELMs). From the time trace of decreasing electron temperature and with increasing plasma density keeping the total confined energy constant, the SMBI seems to act as a cold pulse on the plasma. However, the ELM behaviors were changed drastically (i.e., the symptom of ELM suppression has disappeared). The plasma collisionality in the edge-pedestal region could play a role in the change of the ELM behaviors.
ISSN 1070664X
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-08-15
Publisher Place United States
Journal Physics of Plasmas
Volume Number 23
Issue Number 8


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