Overview of recent progress in 3D field physics in KSTAR

Park, Gunyoung; In, Yongkyoon; Park, Jong-Kyu; Ko, Won-Ha; Lee, Jaehyun; Kim, Minwoo; Shin, Giwook; Hahn, Sang-Hee; Kim, SangKyeun; Yang, Seong Moo; Hu, Qiming; Rhee, Tongnyeol; Choi, Minjun J.; Kim, Kimin; Lee, Hyung-Ho; Jeon, Young-Mu; Kim, Woong-Chae; Yoon, Siwoo

doi:10.1007/s40042-022-00423-z

Overview of recent progress in 3D field physics in KSTAR

Journal Article · Mon Feb 07 00:00:00 EST 2022 · Journal of the Korean Physical Society

DOI:https://doi.org/10.1007/s40042-022-00423-z· OSTI ID:1880119

Park, Gunyoung ^[1]; In, Yongkyoon ^[2]; Park, Jong-Kyu ^[3]; Ko, Won-Ha ^[1]; Lee, Jaehyun ^[1]; Kim, Minwoo ^[1]; Shin, Giwook ^[1]; Hahn, Sang-Hee ^[1]; Kim, SangKyeun ^[4]; Yang, Seong Moo ^[3]; Hu, Qiming ^[3]; Rhee, Tongnyeol ^[1]; Choi, Minjun J. ^[1]; Kim, Kimin ^[1]; Lee, Hyung-Ho ^[1]; Jeon, Young-Mu ^[1]; Kim, Woong-Chae ^[1]; Yoon, Siwoo ^[1]

Korea Inst. of Fusion Energy, Daejeon (Korea, Republic of)
Ulsan National Inst. of Science and Technology (Korea, Republic of)
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Princeton Univ., NJ (United States)

Various 3D field physics challenges of magnetically confined plasmas arise when the driving source comes from either externally applied non-axisymmetric 3D magnetic perturbations or plasma instabilities inside the plasma. Recently, several key outstanding topics of 3D field physics have been extensively studied in the Korean Superconducting Tokamak Advanced Research (KSTAR), such as edge-localized-mode (ELM) control by resonant magnetic perturbation (RMP), error field (EF) control, 3D field effects on rotation and transport, and RMP-induced alteration of divertor heat flux and detachment. KSTAR has a few physically unique features (i.e., high rotation and long-pulse plasmas with a low intrinsic EF) and machine/diagnostic capabilities (i.e., 3-row in-vessel control coil and state-of-the-art 2D/3D imaging diagnostics), which have been taken advantage of until now to address critical 3D field physics issues relevant to ITER and K-DEMO. Among many remarkable achievements are the robust access to and control of n = 1 RMP ELM suppression, along with a development of its physics basis tools, parameter expansion, optimization, and long-pulse control techniques. Nonetheless, a series of unresolved 3D physics themes, as well as limited coverage of 3D field operating regimes, have also been identified as future works for the 3D field research in KSTAR. In this paper, we provide an overview about the recent progress of KSTAR 3D field physics and present future plans of KSTAR 3D research toward a future fusion reactor.

View Accepted Manuscript (DOE)

Research Organization:: Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC02-09CH11466

OSTI ID:: 1880119

Journal Information:: Journal of the Korean Physical Society, Journal Name: Journal of the Korean Physical Society Journal Issue: 8 Vol. 80; ISSN 0374-4884

Publisher:: Korean Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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Wide Operational Windows of Edge-Localized Mode Suppression by Resonant Magnetic Perturbations in the DIII-D Tokamak Hu, Q. M.; Nazikian, R.; Grierson, B. A. Physical Review Letters, Vol. 125, Issue 4 https://doi.org/10.1103/PhysRevLett.125.045001	journal	July 2020
Detachment in Fusion Plasmas with Symmetry Breaking Magnetic Perturbation Fields Frerichs, H.; Schmitz, O.; Bonnin, X. Physical Review Letters, Vol. 125, Issue 15 https://doi.org/10.1103/PhysRevLett.125.155001	journal	October 2020
Quasisymmetric Optimization of Nonaxisymmetry in Tokamaks Park, J. -K.; Yang, S. M.; Logan, N. C. Physical Review Letters, Vol. 126, Issue 12 https://doi.org/10.1103/PhysRevLett.126.125001	journal	March 2021
Electron Heat Transport in a Tokamak with Destroyed Magnetic Surfaces Rechester, A. B.; Rosenbluth, M. N. Physical Review Letters, Vol. 40, Issue 1 https://doi.org/10.1103/PhysRevLett.40.38	journal	January 1978
Error Field Amplification and Rotation Damping in Tokamak Plasmas Boozer, Allen H. Physical Review Letters, Vol. 86, Issue 22 https://doi.org/10.1103/PhysRevLett.86.5059	journal	May 2001
Suppression of Large Edge-Localized Modes in High-Confinement DIII-D Plasmas with a Stochastic Magnetic Boundary Evans, T. E.; Moyer, R. A.; Thomas, P. R. Physical Review Letters, Vol. 92, Issue 23 https://doi.org/10.1103/PhysRevLett.92.235003	journal	June 2004
Control of Asymmetric Magnetic Perturbations in Tokamaks Park, Jong-kyu; Schaffer, Michael J.; Menard, Jonathan E. Physical Review Letters, Vol. 99, Issue 19 https://doi.org/10.1103/PhysRevLett.99.195003	journal	November 2007
Progress of the KSTAR Research Program Exploring the Advanced High Performance and Steady-State Plasma Operations Oh, Yeong-Kook; Yoon, Siwoo; Jeon, Young-Mu Journal of the Korean Physical Society, Vol. 73, Issue 6 https://doi.org/10.3938/jkps.73.712	journal	September 2018
Mesoscopic Transport Events and the Breakdown of Fick’s Law for Turbulent Fluxes Hahm, T. S.; Diamond, P. H. Journal of the Korean Physical Society, Vol. 73, Issue 6 https://doi.org/10.3938/jkps.73.747	journal	September 2018

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