Overview of Large Helical Device experiments of basic plasma physics for solving crucial issues in reaching burning plasma conditions

LHD Experiment Group; the W7-X Team

doi:10.1088/1741-4326/ad3a7a

Overview of Large Helical Device experiments of basic plasma physics for solving crucial issues in reaching burning plasma conditions

LHD Experiment Group, the W7-X Team

Institute of Theoretical and Computational Physics (5150)

Research output: Contribution to journal › Article › peer-review

Abstract

Recently, experiments on basic plasma physics issues for solving future problems in fusion energy have been performed on a Large Helical Device. There are several problems to be solved in future devices for fusion energy. Emerging issues in burning plasma are: alpha-channeling (ion heating by alpha particles), turbulence and transport in electron dominant heating helium ash exhaust, reduction of the divertor heat load. To solve these problems, understanding the basic plasma physics of (1) wave-particle interaction through (inverse) Landau damping, (2) characteristics of electron-scale (high-k) turbulence, (3) ion mixing and the isotope effect, and (4) turbulence spreading and detachment, is necessary. This overview discusses the experimental studies on these issues and turbulent transport in multi-ion plasma and other issues in the appendix.

Original language	English
Article number	112009
Journal	Nuclear Fusion
Volume	64
Issue number	11
DOIs	https://doi.org/10.1088/1741-4326/ad3a7a
Publication status	Published - 1 Nov 2024

Keywords

basic plasma physics
burning plasma
ion mixing
Large Helical Device
turbulence spreading
wave-particle interaction

ASJC Scopus subject areas

Nuclear and High Energy Physics
Condensed Matter Physics

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10.1088/1741-4326/ad3a7aLicence: CC BY 4.0

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@article{e44e78bd2aed45e186e799c1448ba4a1,

title = "Overview of Large Helical Device experiments of basic plasma physics for solving crucial issues in reaching burning plasma conditions",

abstract = "Recently, experiments on basic plasma physics issues for solving future problems in fusion energy have been performed on a Large Helical Device. There are several problems to be solved in future devices for fusion energy. Emerging issues in burning plasma are: alpha-channeling (ion heating by alpha particles), turbulence and transport in electron dominant heating helium ash exhaust, reduction of the divertor heat load. To solve these problems, understanding the basic plasma physics of (1) wave-particle interaction through (inverse) Landau damping, (2) characteristics of electron-scale (high-k) turbulence, (3) ion mixing and the isotope effect, and (4) turbulence spreading and detachment, is necessary. This overview discusses the experimental studies on these issues and turbulent transport in multi-ion plasma and other issues in the appendix.",

keywords = "basic plasma physics, burning plasma, ion mixing, Large Helical Device, turbulence spreading, wave-particle interaction",

author = "{LHD Experiment Group} and {the W7-X Team} and K. Ida and M. Yoshinuma and M. Kobayashi and T. Kobayashi and N. Kenmochi and F. Nespoli and Magee, {R. M.} and F. Warmer and A. Dinklage and A. Matsuyama and R. Sakamoto and T. Nasu and T. Tokuzawa and T. Kinoshita and K. Tanaka and N. Tamura and K. Nagaoka and M. Nishiura and Y. Takemura and K. Ogawa and G. Motojima and T. Oishi and Y. Morishita and J. Varela and Hayashi, {W. H.J.} and M. Markl and H. Bouvain and Y. Liang and M. Leconte and D. Moseev and Moiseenko, {V. E.} and Albert, {C. G.} and I. Allfrey and A. Alonso and Arellano, {F. J.} and N. Ashikawa and A. Azegami and L. Bardoczi and {van Berkel}, M. and M. Beurskens and Binderbaue, {M. W.} and A. Bortolon and S. Brezinsek and R. Bussiahn and A. Cappa and D. Carralero and Chan, {I. C.} and M. Ivkovic and H. Takahashi and M. Zhao",

note = "Publisher Copyright: {\textcopyright} 2024 The Author(s). Published by IOP Publishing Ltd on behalf of the IAEA.",

year = "2024",

month = nov,

day = "1",

doi = "10.1088/1741-4326/ad3a7a",

language = "English",

volume = "64",

journal = "Nuclear Fusion",

issn = "0029-5515",

publisher = "IOP Publishing Ltd.",

number = "11",

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T1 - Overview of Large Helical Device experiments of basic plasma physics for solving crucial issues in reaching burning plasma conditions

AU - LHD Experiment Group

AU - the W7-X Team

AU - Ida, K.

AU - Yoshinuma, M.

AU - Kobayashi, M.

AU - Kobayashi, T.

AU - Kenmochi, N.

AU - Nespoli, F.

AU - Magee, R. M.

AU - Warmer, F.

AU - Dinklage, A.

AU - Matsuyama, A.

AU - Sakamoto, R.

AU - Nasu, T.

AU - Tokuzawa, T.

AU - Kinoshita, T.

AU - Tanaka, K.

AU - Tamura, N.

AU - Nagaoka, K.

AU - Nishiura, M.

AU - Takemura, Y.

AU - Ogawa, K.

AU - Motojima, G.

AU - Oishi, T.

AU - Morishita, Y.

AU - Varela, J.

AU - Hayashi, W. H.J.

AU - Markl, M.

AU - Bouvain, H.

AU - Liang, Y.

AU - Leconte, M.

AU - Moseev, D.

AU - Moiseenko, V. E.

AU - Albert, C. G.

AU - Allfrey, I.

AU - Alonso, A.

AU - Arellano, F. J.

AU - Ashikawa, N.

AU - Azegami, A.

AU - Bardoczi, L.

AU - van Berkel, M.

AU - Beurskens, M.

AU - Binderbaue, M. W.

AU - Bortolon, A.

AU - Brezinsek, S.

AU - Bussiahn, R.

AU - Cappa, A.

AU - Carralero, D.

AU - Chan, I. C.

AU - Ivkovic, M.

AU - Takahashi, H.

AU - Zhao, M.

PY - 2024/11/1

Y1 - 2024/11/1

N2 - Recently, experiments on basic plasma physics issues for solving future problems in fusion energy have been performed on a Large Helical Device. There are several problems to be solved in future devices for fusion energy. Emerging issues in burning plasma are: alpha-channeling (ion heating by alpha particles), turbulence and transport in electron dominant heating helium ash exhaust, reduction of the divertor heat load. To solve these problems, understanding the basic plasma physics of (1) wave-particle interaction through (inverse) Landau damping, (2) characteristics of electron-scale (high-k) turbulence, (3) ion mixing and the isotope effect, and (4) turbulence spreading and detachment, is necessary. This overview discusses the experimental studies on these issues and turbulent transport in multi-ion plasma and other issues in the appendix.

AB - Recently, experiments on basic plasma physics issues for solving future problems in fusion energy have been performed on a Large Helical Device. There are several problems to be solved in future devices for fusion energy. Emerging issues in burning plasma are: alpha-channeling (ion heating by alpha particles), turbulence and transport in electron dominant heating helium ash exhaust, reduction of the divertor heat load. To solve these problems, understanding the basic plasma physics of (1) wave-particle interaction through (inverse) Landau damping, (2) characteristics of electron-scale (high-k) turbulence, (3) ion mixing and the isotope effect, and (4) turbulence spreading and detachment, is necessary. This overview discusses the experimental studies on these issues and turbulent transport in multi-ion plasma and other issues in the appendix.

KW - basic plasma physics

KW - burning plasma

KW - ion mixing

KW - Large Helical Device

KW - turbulence spreading

KW - wave-particle interaction

UR - http://www.scopus.com/inward/record.url?scp=85203132046&partnerID=8YFLogxK

U2 - 10.1088/1741-4326/ad3a7a

DO - 10.1088/1741-4326/ad3a7a

M3 - Article

AN - SCOPUS:85203132046

SN - 0029-5515

VL - 64

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 11

M1 - 112009

ER -

Overview of Large Helical Device experiments of basic plasma physics for solving crucial issues in reaching burning plasma conditions

Abstract

Keywords

ASJC Scopus subject areas

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