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Isotope effects on energy, particle transport and turbulence in electron cyclotron resonant heating plasma of the Large Helical Device. / Tanaka, K.; Ohtani, Y.; Nakata, M. et al.

In: Nuclear Fusion, Vol. 59, No. 12, 126040, 18.10.2019.

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

Harvard

Tanaka, K, Ohtani, Y, Nakata, M, Warmer, F, Tsujimura, T, Takemura, Y, Kinoshita, T, Takahashi, H, Yokoyama, M, Seki, R, Igami, H, Yoshimura, Y, Kubo, S, Shimozuma, T, Tokuzawa, T, Akiyama, T, Yamada, I, Yasuhara, R, Funaba, H, Yoshinuma, M, Ida, K, Goto, M, Motojima, G, Shoji, M, Masuzaki, S, Michael, CA, Vacheslavov, LN, Osakabe, M & Morisaki, T 2019, 'Isotope effects on energy, particle transport and turbulence in electron cyclotron resonant heating plasma of the Large Helical Device', Nuclear Fusion, vol. 59, no. 12, 126040. https://doi.org/10.1088/1741-4326/ab4237

APA

Tanaka, K., Ohtani, Y., Nakata, M., Warmer, F., Tsujimura, T., Takemura, Y., Kinoshita, T., Takahashi, H., Yokoyama, M., Seki, R., Igami, H., Yoshimura, Y., Kubo, S., Shimozuma, T., Tokuzawa, T., Akiyama, T., Yamada, I., Yasuhara, R., Funaba, H., ... Morisaki, T. (2019). Isotope effects on energy, particle transport and turbulence in electron cyclotron resonant heating plasma of the Large Helical Device. Nuclear Fusion, 59(12), [126040]. https://doi.org/10.1088/1741-4326/ab4237

Vancouver

Tanaka K, Ohtani Y, Nakata M, Warmer F, Tsujimura T, Takemura Y et al. Isotope effects on energy, particle transport and turbulence in electron cyclotron resonant heating plasma of the Large Helical Device. Nuclear Fusion. 2019 Oct 18;59(12):126040. doi: 10.1088/1741-4326/ab4237

Author

Tanaka, K. ; Ohtani, Y. ; Nakata, M. et al. / Isotope effects on energy, particle transport and turbulence in electron cyclotron resonant heating plasma of the Large Helical Device. In: Nuclear Fusion. 2019 ; Vol. 59, No. 12.

BibTeX

@article{ca021a6ddddf458db30905602d4634f0,
title = "Isotope effects on energy, particle transport and turbulence in electron cyclotron resonant heating plasma of the Large Helical Device",
abstract = "Positive isotope effects have been found in electron cyclotron resonant heating plasma of the Large Helical Device (LHD). The global energy confinement time (τ E) in deuterium (D) plasma is 16% better than in hydrogen (H) plasma for the same line-averaged density and absorption power. The power balance analyses showed a clear reduction in ion energy transport, while electron energy transport does not change dramatically. The global particle confinement time (τ p) is degraded in D plasma; τ p in D plasma is 20% worse than in H plasma for the same line-averaged density and absorption power. The difference in the density profile was not due to the neutral or impurity sources, but rather was due to the difference in the transport. Ion scale turbulence levels show isotope effects. The core turbulence (ρ = 0.5-0.8) level is higher in D plasma than in H plasma in the low collisionality regime and is lower in D plasma than in H plasma. The density gradient and collisionality play a role in the core turbulence level.",
keywords = "isotope effects, turbulence, LHD, transport, CONFINEMENT",
author = "K. Tanaka and Y. Ohtani and M. Nakata and F. Warmer and T. Tsujimura and Y. Takemura and T. Kinoshita and H. Takahashi and M. Yokoyama and R. Seki and H. Igami and Y. Yoshimura and S. Kubo and T. Shimozuma and T. Tokuzawa and T. Akiyama and I. Yamada and R. Yasuhara and H. Funaba and M. Yoshinuma and K. Ida and M. Goto and G. Motojima and M. Shoji and S. Masuzaki and Michael, {C. A.} and Vacheslavov, {L. N.} and M. Osakabe and T. Morisaki",
year = "2019",
month = oct,
day = "18",
doi = "10.1088/1741-4326/ab4237",
language = "English",
volume = "59",
journal = "Nuclear Fusion",
issn = "0029-5515",
publisher = "IOP Publishing Ltd.",
number = "12",

}

RIS

TY - JOUR

T1 - Isotope effects on energy, particle transport and turbulence in electron cyclotron resonant heating plasma of the Large Helical Device

AU - Tanaka, K.

AU - Ohtani, Y.

AU - Nakata, M.

AU - Warmer, F.

AU - Tsujimura, T.

AU - Takemura, Y.

AU - Kinoshita, T.

AU - Takahashi, H.

AU - Yokoyama, M.

AU - Seki, R.

AU - Igami, H.

AU - Yoshimura, Y.

AU - Kubo, S.

AU - Shimozuma, T.

AU - Tokuzawa, T.

AU - Akiyama, T.

AU - Yamada, I.

AU - Yasuhara, R.

AU - Funaba, H.

AU - Yoshinuma, M.

AU - Ida, K.

AU - Goto, M.

AU - Motojima, G.

AU - Shoji, M.

AU - Masuzaki, S.

AU - Michael, C. A.

AU - Vacheslavov, L. N.

AU - Osakabe, M.

AU - Morisaki, T.

PY - 2019/10/18

Y1 - 2019/10/18

N2 - Positive isotope effects have been found in electron cyclotron resonant heating plasma of the Large Helical Device (LHD). The global energy confinement time (τ E) in deuterium (D) plasma is 16% better than in hydrogen (H) plasma for the same line-averaged density and absorption power. The power balance analyses showed a clear reduction in ion energy transport, while electron energy transport does not change dramatically. The global particle confinement time (τ p) is degraded in D plasma; τ p in D plasma is 20% worse than in H plasma for the same line-averaged density and absorption power. The difference in the density profile was not due to the neutral or impurity sources, but rather was due to the difference in the transport. Ion scale turbulence levels show isotope effects. The core turbulence (ρ = 0.5-0.8) level is higher in D plasma than in H plasma in the low collisionality regime and is lower in D plasma than in H plasma. The density gradient and collisionality play a role in the core turbulence level.

AB - Positive isotope effects have been found in electron cyclotron resonant heating plasma of the Large Helical Device (LHD). The global energy confinement time (τ E) in deuterium (D) plasma is 16% better than in hydrogen (H) plasma for the same line-averaged density and absorption power. The power balance analyses showed a clear reduction in ion energy transport, while electron energy transport does not change dramatically. The global particle confinement time (τ p) is degraded in D plasma; τ p in D plasma is 20% worse than in H plasma for the same line-averaged density and absorption power. The difference in the density profile was not due to the neutral or impurity sources, but rather was due to the difference in the transport. Ion scale turbulence levels show isotope effects. The core turbulence (ρ = 0.5-0.8) level is higher in D plasma than in H plasma in the low collisionality regime and is lower in D plasma than in H plasma. The density gradient and collisionality play a role in the core turbulence level.

KW - isotope effects

KW - turbulence

KW - LHD

KW - transport

KW - CONFINEMENT

UR - http://www.scopus.com/inward/record.url?scp=85076618271&partnerID=8YFLogxK

U2 - 10.1088/1741-4326/ab4237

DO - 10.1088/1741-4326/ab4237

M3 - Article

AN - SCOPUS:85076618271

VL - 59

JO - Nuclear Fusion

JF - Nuclear Fusion

SN - 0029-5515

IS - 12

M1 - 126040

ER -

ID: 23093370