Impact of Magnetic Field Configuration on Heat Transport in Stellarators and Heliotrons

Felix Warmer; K. Tanaka; P. Xanthopoulos; M. Nunami; M. Nakata; C. D. Beidler; S. A. Bozhenkov; M. N.A. Beurskens; K. J. Brunner; O. P. Ford; G. Fuchert; H. Funaba; J. Geiger; D. Gradic; K. Ida; H. Igami; S. Kubo; A. Langenberg; H. P. Laqua; S. Lazerson; T. Morisaki; M. Osakabe; N. Pablant; E. Pasch; B. Peterson; S. Satake; R. Seki; T. Shimozuma; H. M. Smith; T. Stange; A. V. Stechow; H. Sugama; Y. Suzuki; H. Takahashi; T. Tokuzawa; T. Tsujimura; Y. Turkin; R. C. Wolf; I. Yamada; R. Yanai; R. Yasuhara; M. Yokoyama; Y. Yoshimura; M. Yoshinuma; D. Zhang; Team W7-X Team

doi:10.1103/PhysRevLett.127.225001

Impact of Magnetic Field Configuration on Heat Transport in Stellarators and Heliotrons

Felix Warmer
, K. Tanaka
, P. Xanthopoulos
, M. Nunami
, M. Nakata
, C. D. Beidler
, S. A. Bozhenkov
, M. N.A. Beurskens
, K. J. Brunner
, O. P. Ford
, G. Fuchert
, H. Funaba
, J. Geiger
, D. Gradic
, K. Ida
, H. Igami
, S. Kubo
, A. Langenberg
, H. P. Laqua
, S. Lazerson

T. Morisaki, M. Osakabe, N. Pablant, E. Pasch, B. Peterson, S. Satake, R. Seki, T. Shimozuma, H. M. Smith, T. Stange, A. V. Stechow, H. Sugama, Y. Suzuki, H. Takahashi, T. Tokuzawa, T. Tsujimura, Y. Turkin, R. C. Wolf, I. Yamada, R. Yanai, R. Yasuhara, M. Yokoyama, Y. Yoshimura, M. Yoshinuma, D. Zhang, Team W7-X Team

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

19 Scopus citations

Abstract

We assess the magnetic field configuration in modern fusion devices by comparing experiments with the same heating power, between a stellarator and a heliotron. The key role of turbulence is evident in the optimized stellarator, while neoclassical processes largely determine the transport in the heliotron device. Gyrokinetic simulations elucidate the underlying mechanisms promoting stronger ion scale turbulence in the stellarator. Similar plasma performances in these experiments suggests that neoclassical and turbulent transport should both be optimized in next step reactor designs.

Original language	English (US)
Journal	Physical review letters
Volume	127
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevLett.127.225001
State	Published - Nov 24 2021

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.127.225001

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Warmer, F., Tanaka, K., Xanthopoulos, P., Nunami, M., Nakata, M., Beidler, C. D., Bozhenkov, S. A., Beurskens, M. N. A., Brunner, K. J., Ford, O. P., Fuchert, G., Funaba, H., Geiger, J., Gradic, D., Ida, K., Igami, H., Kubo, S., Langenberg, A., Laqua, H. P., ... W7-X Team, T. (2021). Impact of Magnetic Field Configuration on Heat Transport in Stellarators and Heliotrons. Physical review letters, 127(22). https://doi.org/10.1103/PhysRevLett.127.225001

@article{5305242104c8413baf4b298d48f857d6,

title = "Impact of Magnetic Field Configuration on Heat Transport in Stellarators and Heliotrons",

abstract = "We assess the magnetic field configuration in modern fusion devices by comparing experiments with the same heating power, between a stellarator and a heliotron. The key role of turbulence is evident in the optimized stellarator, while neoclassical processes largely determine the transport in the heliotron device. Gyrokinetic simulations elucidate the underlying mechanisms promoting stronger ion scale turbulence in the stellarator. Similar plasma performances in these experiments suggests that neoclassical and turbulent transport should both be optimized in next step reactor designs.",

author = "Felix Warmer and K. Tanaka and P. Xanthopoulos and M. Nunami and M. Nakata and Beidler, \{C. D.\} and Bozhenkov, \{S. A.\} and Beurskens, \{M. N.A.\} and Brunner, \{K. J.\} and Ford, \{O. P.\} and G. Fuchert and H. Funaba and J. Geiger and D. Gradic and K. Ida and H. Igami and S. Kubo and A. Langenberg and Laqua, \{H. P.\} and S. Lazerson and T. Morisaki and M. Osakabe and N. Pablant and E. Pasch and B. Peterson and S. Satake and R. Seki and T. Shimozuma and Smith, \{H. M.\} and T. Stange and Stechow, \{A. V.\} and H. Sugama and Y. Suzuki and H. Takahashi and T. Tokuzawa and T. Tsujimura and Y. Turkin and Wolf, \{R. C.\} and I. Yamada and R. Yanai and R. Yasuhara and M. Yokoyama and Y. Yoshimura and M. Yoshinuma and D. Zhang and \{W7-X Team\}, Team",

note = "Publisher Copyright: {\textcopyright} 2021 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Open access publication funded by the Max Planck Society.",

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Warmer, F, Tanaka, K, Xanthopoulos, P, Nunami, M, Nakata, M, Beidler, CD, Bozhenkov, SA, Beurskens, MNA, Brunner, KJ, Ford, OP, Fuchert, G, Funaba, H, Geiger, J, Gradic, D, Ida, K, Igami, H, Kubo, S, Langenberg, A, Laqua, HP, Lazerson, S, Morisaki, T, Osakabe, M, Pablant, N, Pasch, E, Peterson, B, Satake, S, Seki, R, Shimozuma, T, Smith, HM, Stange, T, Stechow, AV, Sugama, H, Suzuki, Y, Takahashi, H, Tokuzawa, T, Tsujimura, T, Turkin, Y, Wolf, RC, Yamada, I, Yanai, R, Yasuhara, R, Yokoyama, M, Yoshimura, Y, Yoshinuma, M, Zhang, D & W7-X Team, T 2021, 'Impact of Magnetic Field Configuration on Heat Transport in Stellarators and Heliotrons', Physical review letters, vol. 127, no. 22. https://doi.org/10.1103/PhysRevLett.127.225001

TY - JOUR

T1 - Impact of Magnetic Field Configuration on Heat Transport in Stellarators and Heliotrons

AU - Warmer, Felix

AU - Tanaka, K.

AU - Xanthopoulos, P.

AU - Nunami, M.

AU - Nakata, M.

AU - Beidler, C. D.

AU - Bozhenkov, S. A.

AU - Beurskens, M. N.A.

AU - Brunner, K. J.

AU - Ford, O. P.

AU - Fuchert, G.

AU - Funaba, H.

AU - Geiger, J.

AU - Gradic, D.

AU - Ida, K.

AU - Igami, H.

AU - Kubo, S.

AU - Langenberg, A.

AU - Laqua, H. P.

AU - Lazerson, S.

AU - Morisaki, T.

AU - Osakabe, M.

AU - Pablant, N.

AU - Pasch, E.

AU - Peterson, B.

AU - Satake, S.

AU - Seki, R.

AU - Shimozuma, T.

AU - Smith, H. M.

AU - Stange, T.

AU - Stechow, A. V.

AU - Sugama, H.

AU - Suzuki, Y.

AU - Takahashi, H.

AU - Tokuzawa, T.

AU - Tsujimura, T.

AU - Turkin, Y.

AU - Wolf, R. C.

AU - Yamada, I.

AU - Yanai, R.

AU - Yasuhara, R.

AU - Yokoyama, M.

AU - Yoshimura, Y.

AU - Yoshinuma, M.

AU - Zhang, D.

AU - W7-X Team, Team

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PY - 2021/11/24

Y1 - 2021/11/24

N2 - We assess the magnetic field configuration in modern fusion devices by comparing experiments with the same heating power, between a stellarator and a heliotron. The key role of turbulence is evident in the optimized stellarator, while neoclassical processes largely determine the transport in the heliotron device. Gyrokinetic simulations elucidate the underlying mechanisms promoting stronger ion scale turbulence in the stellarator. Similar plasma performances in these experiments suggests that neoclassical and turbulent transport should both be optimized in next step reactor designs.

AB - We assess the magnetic field configuration in modern fusion devices by comparing experiments with the same heating power, between a stellarator and a heliotron. The key role of turbulence is evident in the optimized stellarator, while neoclassical processes largely determine the transport in the heliotron device. Gyrokinetic simulations elucidate the underlying mechanisms promoting stronger ion scale turbulence in the stellarator. Similar plasma performances in these experiments suggests that neoclassical and turbulent transport should both be optimized in next step reactor designs.

UR - https://www.scopus.com/pages/publications/85121208076

UR - https://www.scopus.com/pages/publications/85121208076#tab=citedBy

U2 - 10.1103/PhysRevLett.127.225001

DO - 10.1103/PhysRevLett.127.225001

M3 - Article

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AN - SCOPUS:85121208076

SN - 0031-9007

VL - 127

JO - Physical review letters

JF - Physical review letters

IS - 22

ER -

Impact of Magnetic Field Configuration on Heat Transport in Stellarators and Heliotrons

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