Estimates of EAST Operation Window with LHCD by Using a Core-SOL-Divertor Model

An experimental advanced superconducting tokamak （EAST） operation window with the lower hybrid current drive （LHCD） in H-mode is estimated by using a eore-SOL-divertor （C-S-D） model validated by the present EAST divertor experiments. The operation window consists of four limits including two usual l...

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Bibliographic Details
Published inPlasma science & technology Vol. 16; no. 10; pp. 907 - 912
Main Author 欧靖 甘春芸 叶磊
Format Journal Article
LanguageEnglish
Published 01.10.2014
Subjects
EAST
Estimates
Impurities
LHCD
Mathematical models
Missions
Nucleation
Numerical analysis
Superconductivity
Tokamak devices
低杂波电流驱动
低混杂电流驱动
偏滤器
操作窗口
模型估计
超导托卡马克
Online AccessGet full text
ISSN1009-0630
DOI10.1088/1009-0630/16/10/02

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Summary:An experimental advanced superconducting tokamak （EAST） operation window with the lower hybrid current drive （LHCD） in H-mode is estimated by using a eore-SOL-divertor （C-S-D） model validated by the present EAST divertor experiments. The operation window consists of four limits including two usual limits, one of which is the maximum allowable heat load onto the divertor plate, and two additional limits associated with the LHCD. The predictive EAST operation window is not qualified to fulfill its mission for high input power. To extend the operation window, gas puffing and impurity seeding are presented as two effective methods. In addition, the effect of the LHCD current on the operation window is also discussed. Our numerical analysis results provide a reference for the safe operation of EAST experiments with LHCD in future.
Bibliography:OU Jing , GAN Chunyun, YE Lei （1.Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China; 2.Center for Magnetic Fusion Theory, Chinese Academy of Sciences, Hefei 230031, China）
operation window, C-S-D model, numerical analysis
An experimental advanced superconducting tokamak （EAST） operation window with the lower hybrid current drive （LHCD） in H-mode is estimated by using a eore-SOL-divertor （C-S-D） model validated by the present EAST divertor experiments. The operation window consists of four limits including two usual limits, one of which is the maximum allowable heat load onto the divertor plate, and two additional limits associated with the LHCD. The predictive EAST operation window is not qualified to fulfill its mission for high input power. To extend the operation window, gas puffing and impurity seeding are presented as two effective methods. In addition, the effect of the LHCD current on the operation window is also discussed. Our numerical analysis results provide a reference for the safe operation of EAST experiments with LHCD in future.
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ISSN:1009-0630
DOI:10.1088/1009-0630/16/10/02