Nuclear Fusion (Jan 2024)
First application of the island divertor configuration in the J-TEXT tokamak
- S. Zhou,
- Y.H. Ding,
- Y. Liang,
- Z.H. Jiang,
- N.C. Wang,
- A. Knieps,
- S. Xu,
- D. Li,
- X.L. Zhang,
- J. Yang,
- X.Y. Zhang,
- F.Y. Mao,
- Y.B. Li,
- Q.H. Yang,
- J.K. Hua,
- Y.T. Yang,
- Z.R. Hou,
- W. Yan,
- Z.J. Yang,
- Z.P. Chen,
- Z.Y. Chen,
- the J-TEXT Team
Affiliations
- S. Zhou
- ORCiD
- State Key Laboratory of Advanced Electromagnetic Technology, International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
- Y.H. Ding
- State Key Laboratory of Advanced Electromagnetic Technology, International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
- Y. Liang
- ORCiD
- State Key Laboratory of Advanced Electromagnetic Technology, International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology , Wuhan 430074, China; Forschungszentrum Jülich GmbH , Jülich 52425, Germany; Institute of Plasma Physics, Chinese Academy of Sciences , Hefei 230031, China
- Z.H. Jiang
- ORCiD
- State Key Laboratory of Advanced Electromagnetic Technology, International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
- N.C. Wang
- ORCiD
- State Key Laboratory of Advanced Electromagnetic Technology, International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
- A. Knieps
- ORCiD
- Forschungszentrum Jülich GmbH , Jülich 52425, Germany
- S. Xu
- ORCiD
- Forschungszentrum Jülich GmbH , Jülich 52425, Germany
- D. Li
- State Key Laboratory of Advanced Electromagnetic Technology, International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology , Wuhan 430074, China; Southwestern Institute of Physics , Chengdu 610041, China
- X.L. Zhang
- Southwestern Institute of Physics , Chengdu 610041, China
- J. Yang
- State Key Laboratory of Advanced Electromagnetic Technology, International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
- X.Y. Zhang
- State Key Laboratory of Advanced Electromagnetic Technology, International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
- F.Y. Mao
- ORCiD
- State Key Laboratory of Advanced Electromagnetic Technology, International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
- Y.B. Li
- State Key Laboratory of Advanced Electromagnetic Technology, International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
- Q.H. Yang
- State Key Laboratory of Advanced Electromagnetic Technology, International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
- J.K. Hua
- State Key Laboratory of Advanced Electromagnetic Technology, International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
- Y.T. Yang
- State Key Laboratory of Advanced Electromagnetic Technology, International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
- Z.R. Hou
- State Key Laboratory of Advanced Electromagnetic Technology, International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
- W. Yan
- State Key Laboratory of Advanced Electromagnetic Technology, International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
- Z.J. Yang
- ORCiD
- State Key Laboratory of Advanced Electromagnetic Technology, International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
- Z.P. Chen
- ORCiD
- State Key Laboratory of Advanced Electromagnetic Technology, International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
- Z.Y. Chen
- ORCiD
- State Key Laboratory of Advanced Electromagnetic Technology, International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
- the J-TEXT Team
- DOI
- https://doi.org/10.1088/1741-4326/ad90f1
- Journal volume & issue
-
Vol. 65,
no. 1
p. 016020
Abstract
For the first time, an island divertor configuration was successfully implemented in the J-TEXT tokamak to improve heat exhaust and impurity control. The magnetic island is generated by applying external resonant magnetic perturbation fields, and the intersection between the edge island and the divertor target is then controlled by adjusting the edge safety factor q _a , thereby achieving the island divertor configuration. The overall confinement is maintained in spite of the loss of the edge volume. The island divertor configuration significantly reduces peak heat-load on the divertor target by approximately 50% and improves impurity screening. Additionally, it effectively modulates radiation around the magnetic island’s X-point, potentially enhancing the stability and control of radiative divertor operations. These findings highlight the island divertor configuration as a promising strategy for advancing heat exhaust and impurity control in tokamak operations.
Keywords
