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

Title: 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.

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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, Vol. 80, Issue 8; ISSN 0374-4884

Publisher:: Korean Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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Nonambipolar Transport due to Electrons with 3D Resistive Response in the KSTAR Tokamak Yang, S. M.; Park, J. -K.; Na, Yong-Su Physical Review Letters, Vol. 123, Issue 9 https://doi.org/10.1103/PhysRevLett.123.095001	journal	August 2019
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
Localizing resonant magnetic perturbations for edge localized mode control in KSTAR Yang, S. M.; Park, J. -K.; Logan, N. C. Nuclear Fusion, Vol. 60, Issue 9 https://doi.org/10.1088/1741-4326/aba1cf	journal	August 2020
Three-Dimensional Drift Kinetic Response of High- $β$ Plasmas in the DIII-D Tokamak Wang, Z. R.; Lanctot, M. J.; Liu, Y. Q. Physical Review Letters, Vol. 114, Issue 14 https://doi.org/10.1103/PhysRevLett.114.145005	journal	April 2015
Nonambipolar Transport by Trapped Particles in Tokamaks Park, Jong-kyu; Boozer, Allen H.; Menard, Jonathan E. Physical Review Letters, Vol. 102, Issue 6 https://doi.org/10.1103/PhysRevLett.102.065002	journal	February 2009
Extremely low intrinsic non-axisymmetric field in KSTAR and its implications In, Y.; Park, J. K.; Jeon, J. M. Nuclear Fusion, Vol. 55, Issue 4 https://doi.org/10.1088/0029-5515/55/4/043004	journal	March 2015

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