This title appears in the Scientific Report :
2015
Please use the identifier:
http://hdl.handle.net/2128/18173 in citations.
Please use the identifier: http://dx.doi.org/10.1063/1.4872195 in citations.
Recent advances in long-pulse high-confinement plasma operations in Experimental Advanced Superconducting Tokamak
Recent advances in long-pulse high-confinement plasma operations in Experimental Advanced Superconducting Tokamak
A long-pulse high confinement plasma regime known as H-mode is achieved in the Experimental Advanced Superconducting Tokamak (EAST) with a record duration over 30 s, sustained by Lower Hybrid wave Current Drive (LHCD) with advanced lithium wall conditioning and divertor pumping. This long-pulse H-mo...
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Personal Name(s): | Guo, H. Y. (Corresponding Author) |
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Li, J. / Wan, B. N. / Gong, X. Z. / Liang, Yunfeng / Xu, G. S. / Zhang, X. D. / Ding, S. Y. / Gan, K. F. / Hu, J. S. / Hu, L. Q. / Liu, S. C. / Qian, J. P. / Sun, Y. W. / Wang, H. Q. / Wang, L. / Xia, T. Y. / Xiao, B. J. / Zeng, Long / Zhao, Y. P. / Denner, P. / Ferron, J. R. / Garofalo, A. M. / Holcomb, C. T. / Hyatt, A. W. / Jackson, G. L. / Loarte, A. / Maingi, R. / Menard, J. E. / Rack, M. / Solomon, W. M. / Xu, X. Q. / Van Zeeland, M. / Zou, X. L. | |
Contributing Institute: |
Plasmaphysik; IEK-4 |
Published in: | Physics of plasmas, 21 (2014) 5, S. 056107 - |
Imprint: |
[S.l.]
American Institute of Physics
2014
|
DOI: |
10.1063/1.4872195 |
Document Type: |
Journal Article |
Research Program: |
Tokamak physics for ITER and beyond |
Link: |
Get full text OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1063/1.4872195 in citations.
A long-pulse high confinement plasma regime known as H-mode is achieved in the Experimental Advanced Superconducting Tokamak (EAST) with a record duration over 30 s, sustained by Lower Hybrid wave Current Drive (LHCD) with advanced lithium wall conditioning and divertor pumping. This long-pulse H-mode plasma regime is characterized by the co-existence of a small Magneto-Hydrodynamic (MHD) instability, i.e., Edge Localized Modes (ELMs) and a continuous quasi-coherent MHD mode at the edge. We find that LHCD provides an intrinsic boundary control for ELMs, leading to a dramatic reduction in the transient power load on the vessel wall, compared to the standard Type I ELMs. LHCD also induces edge plasma ergodization, broadening heat deposition footprints, and the heat transport caused by ergodization can be actively controlled by regulating edge plasma conditions, thus providing a new means for stationary heat flux control. In addition, advanced tokamak scenarios have been newly developed for high-performance long-pulse plasma operations in the next EAST experimental campaign. |