EAST steady-state long pulse H-mode with core-edge integration for CFETR
Abstract
Recent EAST experiment has successfully demonstrated long pulse steady-state high plasma performance scenario and core-edge integration since the last IAEA in 2018. A discharge with a duration over 60s with βP ~2.0, βN ~1.6, H98y2~1.3 and internal transport barrier on electron temperature channel is obtained with multi-RF power heating and current drive. A higher βN (βN~1.8, βp~2.0, H98y2~1.3, ne/nGW~0.75) with a duration of 20s is achieved by using the modulated neutral beam and multi-RF power, where several normalized parameters are close or even higher than the phase III 1GW scenario of CFETR steady-state. High-Z impurity accumulation in the plasma core is well controlled in a low level by using the on-axis ECH. Modelling shows that the strong diffusion of TEM turbulence in the central region prevents tungsten impurity to accumulate. More recently, EAST has demonstrated compatible core-edge integration discharges in the high βp scenario: high confinement H98y2>1.2 with high βP~2.5/βN~2.0 and fbs~50% is sustained with reduced divertor heat flux at high density ne/nGW~0.7 and moderate q95~6.7. By combining active impurity seeding through radiative divertor feedback control and strike point splitting induced by resonant perturbation coil, the peak heat flux is reduced by 20-30% on the ITER-like tungsten divertor, here amore »
- Authors:
-
more »
- Chinese Academy of Sciences (CAS), Beijing (China)
- General Atomics, San Diego, CA (United States)
- Alternative Energies and Atomic Energy Commission (CEA), Saint Paul-lez-Durance (France)
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Publication Date:
- Research Org.:
- General Atomics, San Diego, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Fusion Energy Sciences (FES); National MCF Energy R&D Program; National Natural Science Foundation of China (NSFC); Anhui Provincial Natural Science Foundation; Chinese Academy of Sciences
- OSTI Identifier:
- 1855250
- Grant/Contract Number:
- SC0010685; 2019YFE03040000; 2019YFE03020004; 11975274; 12005262; 11975276; 2021HSC-UE018; 2020HSC-UE011; 116134KYSB20180035; 2108085J06; 2008085J04; DSJJ-2021-04
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nuclear Fusion
- Additional Journal Information:
- Journal Volume: 62; Journal Issue: 7; Journal ID: ISSN 0029-5515
- Publisher:
- IOP Science
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Citation Formats
Gong, Xianzu, Garofalo, Andrea M., Huang, Juan, Qian, Jinping, Ekedahl, Annika, Maingi, Rajesh, Holcomb, Chris T., Liu, Fukun, Zhao, Yanping, Xiao, Bingjia, Hu, Jiansheng, Hu, Chundong, Hu, Liqun, Wang, Mao, Xu, Handong, Li, Erzhong, Zeng, Long, Zang, Qing, Liu, Haiqing, Lyu, Bo, Yuan, Q. P., Li, Kedong, Zhang, Bin, Zhang, Jiayuan, Jia, Tianqi, Wu, Muquan, Chen, Jiale, Zhu, Xiang, Li, Miaohui, Zhang, Xinjun, Zhang, Ling, Duan, Yanmin, Wang, Liang, Ding, Rui, Sun, Youwen, Xu, Guo Sheng, Liang, Yunfeng, Xiang, Nong, Wan, Baonian, and Li, Jiangang. EAST steady-state long pulse H-mode with core-edge integration for CFETR. United States: N. p., 2022.
Web. doi:10.1088/1741-4326/ac49ad.
Gong, Xianzu, Garofalo, Andrea M., Huang, Juan, Qian, Jinping, Ekedahl, Annika, Maingi, Rajesh, Holcomb, Chris T., Liu, Fukun, Zhao, Yanping, Xiao, Bingjia, Hu, Jiansheng, Hu, Chundong, Hu, Liqun, Wang, Mao, Xu, Handong, Li, Erzhong, Zeng, Long, Zang, Qing, Liu, Haiqing, Lyu, Bo, Yuan, Q. P., Li, Kedong, Zhang, Bin, Zhang, Jiayuan, Jia, Tianqi, Wu, Muquan, Chen, Jiale, Zhu, Xiang, Li, Miaohui, Zhang, Xinjun, Zhang, Ling, Duan, Yanmin, Wang, Liang, Ding, Rui, Sun, Youwen, Xu, Guo Sheng, Liang, Yunfeng, Xiang, Nong, Wan, Baonian, & Li, Jiangang. EAST steady-state long pulse H-mode with core-edge integration for CFETR. United States. https://doi.org/10.1088/1741-4326/ac49ad
Gong, Xianzu, Garofalo, Andrea M., Huang, Juan, Qian, Jinping, Ekedahl, Annika, Maingi, Rajesh, Holcomb, Chris T., Liu, Fukun, Zhao, Yanping, Xiao, Bingjia, Hu, Jiansheng, Hu, Chundong, Hu, Liqun, Wang, Mao, Xu, Handong, Li, Erzhong, Zeng, Long, Zang, Qing, Liu, Haiqing, Lyu, Bo, Yuan, Q. P., Li, Kedong, Zhang, Bin, Zhang, Jiayuan, Jia, Tianqi, Wu, Muquan, Chen, Jiale, Zhu, Xiang, Li, Miaohui, Zhang, Xinjun, Zhang, Ling, Duan, Yanmin, Wang, Liang, Ding, Rui, Sun, Youwen, Xu, Guo Sheng, Liang, Yunfeng, Xiang, Nong, Wan, Baonian, and Li, Jiangang. Tue .
"EAST steady-state long pulse H-mode with core-edge integration for CFETR". United States. https://doi.org/10.1088/1741-4326/ac49ad. https://www.osti.gov/servlets/purl/1855250.
@article{osti_1855250,
title = {EAST steady-state long pulse H-mode with core-edge integration for CFETR},
author = {Gong, Xianzu and Garofalo, Andrea M. and Huang, Juan and Qian, Jinping and Ekedahl, Annika and Maingi, Rajesh and Holcomb, Chris T. and Liu, Fukun and Zhao, Yanping and Xiao, Bingjia and Hu, Jiansheng and Hu, Chundong and Hu, Liqun and Wang, Mao and Xu, Handong and Li, Erzhong and Zeng, Long and Zang, Qing and Liu, Haiqing and Lyu, Bo and Yuan, Q. P. and Li, Kedong and Zhang, Bin and Zhang, Jiayuan and Jia, Tianqi and Wu, Muquan and Chen, Jiale and Zhu, Xiang and Li, Miaohui and Zhang, Xinjun and Zhang, Ling and Duan, Yanmin and Wang, Liang and Ding, Rui and Sun, Youwen and Xu, Guo Sheng and Liang, Yunfeng and Xiang, Nong and Wan, Baonian and Li, Jiangang},
abstractNote = {Recent EAST experiment has successfully demonstrated long pulse steady-state high plasma performance scenario and core-edge integration since the last IAEA in 2018. A discharge with a duration over 60s with βP ~2.0, βN ~1.6, H98y2~1.3 and internal transport barrier on electron temperature channel is obtained with multi-RF power heating and current drive. A higher βN (βN~1.8, βp~2.0, H98y2~1.3, ne/nGW~0.75) with a duration of 20s is achieved by using the modulated neutral beam and multi-RF power, where several normalized parameters are close or even higher than the phase III 1GW scenario of CFETR steady-state. High-Z impurity accumulation in the plasma core is well controlled in a low level by using the on-axis ECH. Modelling shows that the strong diffusion of TEM turbulence in the central region prevents tungsten impurity to accumulate. More recently, EAST has demonstrated compatible core-edge integration discharges in the high βp scenario: high confinement H98y2>1.2 with high βP~2.5/βN~2.0 and fbs~50% is sustained with reduced divertor heat flux at high density ne/nGW~0.7 and moderate q95~6.7. By combining active impurity seeding through radiative divertor feedback control and strike point splitting induced by resonant perturbation coil, the peak heat flux is reduced by 20-30% on the ITER-like tungsten divertor, here a mixture of 50% neon and 50% D2 is applied.},
doi = {10.1088/1741-4326/ac49ad},
journal = {Nuclear Fusion},
number = 7,
volume = 62,
place = {United States},
year = {Tue Apr 26 00:00:00 EDT 2022},
month = {Tue Apr 26 00:00:00 EDT 2022}
}
Works referenced in this record:
Modeling and advances in the high bootstrap fraction regime on EAST towards the steady-state operation
journal, August 2019
- Wu, M. Q.; Li, G. Q.; Qian, J. P.
- Nuclear Fusion, Vol. 59, Issue 10
Interplay between central ECRH and saturated ( m , n ) = (1, 1) MHD activity in mitigating tungsten accumulation at ASDEX Upgrade
journal, September 2015
- Sertoli, M.; Odstrcil, T.; Angioni, C.
- Nuclear Fusion, Vol. 55, Issue 11
Detachment plasma achieved based on active temperature feedback system in EAST
journal, June 2020
- Chen, M. W.; Gong, X. Z.; Gan, K. F.
- Nuclear Fusion, Vol. 60, Issue 7
A comparison of the impact of central ECRH and central ICRH on the tungsten behaviour in ASDEX Upgrade H-mode plasmas
journal, March 2017
- Angioni, C.; Sertoli, M.; Bilato, R.
- Nuclear Fusion, Vol. 57, Issue 5
Overview of EAST experiments on the development of high-performance steady-state scenario
journal, July 2017
- Wan, B. N.; Liang, Y. F.; Gong, X. Z.
- Nuclear Fusion, Vol. 57, Issue 10
Nonlinear gyrokinetic simulation of ion temperature gradient turbulence based on a numerical Lie-transform perturbation method
journal, August 2017
- Xu, Yingfeng; Ye, Lei; Dai, Zongliang
- Physics of Plasmas, Vol. 24, Issue 8
Advances in the high bootstrap fraction regime on DIII-D towards the Q = 5 mission of ITER steady state
journal, March 2017
- Qian, J. P.; Garofalo, A. M.; Gong, X. Z.
- Nuclear Fusion, Vol. 57, Issue 5
Scenario development for high β p low torque plasma with q min above 2 and large-radius internal transport barrier in DIII-D
journal, September 2016
- Ding, S.; Xu, G. S.; Wang, Q.
- Nuclear Fusion, Vol. 57, Issue 2
Progress of the CFETR design
journal, June 2019
- Zhuang, G.; Li, G. Q.; Li, J.
- Nuclear Fusion, Vol. 59, Issue 11
Time diffusion method for gyrokinetic simulation of electrostatic turbulence with kinetic electrons
journal, December 2021
- Zhao, PengFei; Ye, Lei; Xiang, Nong
- Computer Physics Communications, Vol. 269
Development of high poloidal beta, steady-state scenario with ITER-like tungsten divertor on EAST
journal, June 2017
- Garofalo, A. M.; Gong, X. Z.; Qian, J.
- Nuclear Fusion, Vol. 57, Issue 7
Progress toward steady-state tokamak operation exploiting the high bootstrap current fraction regime
journal, June 2016
- Ren, Q. L.; Garofalo, A. M.; Gong, X. Z.
- Physics of Plasmas, Vol. 23, Issue 6
EAST equilibrium current profile reconstruction using polarimeter-interferometer internal measurement constraints
journal, December 2016
- Qian, J. P.; Lao, L. L.; Liu, H. Q.
- Nuclear Fusion, Vol. 57, Issue 3
Experimental and theoretical study of nickel transport dependence on gradients in Tore Supra
journal, April 2014
- Villegas, D.; Guirlet, R.; Bourdelle, C.
- Nuclear Fusion, Vol. 54, Issue 7
Modification of argon impurity transport by electron cyclotron heating in KSTAR H-mode plasmas
journal, February 2017
- Hong, Joohwan; Henderson, S. S.; Kim, Kimin
- Nuclear Fusion, Vol. 57, Issue 3
Progress of physics understanding for long pulse high-performance plasmas on EAST towards the steady-state operation of ITER and CFETR
journal, December 2019
- Huang, J.; Gong, X.; Garofalo, A. M.
- Plasma Physics and Controlled Fusion, Vol. 62, Issue 1
A gyrokinetic continuum code based on the numerical Lie transform (NLT) method
journal, July 2016
- Ye, Lei; Xu, Yingfeng; Xiao, Xiaotao
- Journal of Computational Physics, Vol. 316
Improved high-performance fully non-inductive discharge by optimizing the fast-ion confinement on EAST
journal, October 2019
- Huang, J.; Qian, J. P.; Garofalo, A. M.
- Nuclear Fusion, Vol. 60, Issue 1
Achievement of radiative feedback control for long-pulse operation on EAST
journal, March 2018
- Wu, K.; Yuan, Q. P.; Xiao, B. J.
- Nuclear Fusion, Vol. 58, Issue 5
Advances in physics understanding of high poloidal beta regime toward steady-state operation of CFETR
journal, April 2021
- Qian, J. P.; Garofalo, A. M.; Gong, X. Z.
- Physics of Plasmas, Vol. 28, Issue 4
Kinetic calculation of neoclassical transport including self-consistent electron and impurity dynamics
journal, July 2008
- Belli, E. A.; Candy, J.
- Plasma Physics and Controlled Fusion, Vol. 50, Issue 9
Confinement improvement in the high poloidal beta regime on DIII-D and application to steady-state H-mode on EAST
journal, May 2017
- Ding, S.; Garofalo, A. M.; Qian, J.
- Physics of Plasmas, Vol. 24, Issue 5
Core tungsten transport in WEST long pulse L-mode plasmas
journal, July 2020
- Yang, X.; Manas, P.; Bourdelle, C.
- Nuclear Fusion, Vol. 60, Issue 8
Integrated operation of steady-state long-pulse H-mode in Experimental Advanced Superconducting Tokamak
journal, July 2019
- Gong, X.; Garofalo, A. M.; Huang, J.
- Nuclear Fusion, Vol. 59, Issue 8
Joint DIII-D/EAST research on the development of a high poloidal beta scenario for the steady state missions of ITER and CFETR
journal, November 2017
- Garofalo, A. M.; Gong, X. Z.; Ding, S. Y.
- Plasma Physics and Controlled Fusion, Vol. 60, Issue 1
Compatibility of internal transport barrier with steady-state operation in the high bootstrap fraction regime on DIII-D
journal, November 2015
- Garofalo, A. M.; Gong, X.; Grierson, B. A.
- Nuclear Fusion, Vol. 55, Issue 12
Relationship between particle and heat transport in JT-60U plasmas with internal transport barrier
journal, October 2003
- Takenaga, H.; Higashijima, S.; Oyama, N.
- Nuclear Fusion, Vol. 43, Issue 10
Advances in plasma–wall interaction control for H-mode operation over 100 s with ITER-like tungsten divertor on EAST
journal, July 2019
- Wang, L.; Guo, H. Y.; Ding, F.
- Nuclear Fusion, Vol. 59, Issue 8
Core turbulent transport in tokamak plasmas: bridging theory and experiment with QuaLiKiz
journal, December 2015
- Bourdelle, C.; Citrin, J.; Baiocchi, B.
- Plasma Physics and Controlled Fusion, Vol. 58, Issue 1
Dependence of the impurity transport on the dominant turbulent regime in ELM-y H-mode discharges on the DIII-D tokamak
journal, August 2020
- Odstrčil, T.; Howard, N. T.; Sciortino, F.
- Physics of Plasmas, Vol. 27, Issue 8