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Extended investigations of isotope effects on ECRH plasma in LHD. / Morisaki, T.; Tanaka, K.; Nakata, M. et al.

In: Plasma Physics and Controlled Fusion, Vol. 62, No. 2, 024006, 01.01.2020.

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

Harvard

Morisaki, T, Tanaka, K, Nakata, M, Ohtani, Y, Tokuzawa, T, Yamada, H, Warmer, F, Nunami, M, Satake, S, Tala, T, Tsujimura, T, Takemura, Y, Kinoshita, T, Takahashi, H, Yokoyama, M, Seki, R, Igami, H, Yoshimura, Y, Kubo, S, Shimozuma, 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 2020, 'Extended investigations of isotope effects on ECRH plasma in LHD', Plasma Physics and Controlled Fusion, vol. 62, no. 2, 024006. https://doi.org/10.1088/1361-6587/ab5bae

APA

Morisaki, T., Tanaka, K., Nakata, M., Ohtani, Y., Tokuzawa, T., Yamada, H., Warmer, F., Nunami, M., Satake, S., Tala, T., Tsujimura, T., Takemura, Y., Kinoshita, T., Takahashi, H., Yokoyama, M., Seki, R., Igami, H., Yoshimura, Y., Kubo, S., ... Morisaki, T. (2020). Extended investigations of isotope effects on ECRH plasma in LHD. Plasma Physics and Controlled Fusion, 62(2), [024006]. https://doi.org/10.1088/1361-6587/ab5bae

Vancouver

Morisaki T, Tanaka K, Nakata M, Ohtani Y, Tokuzawa T, Yamada H et al. Extended investigations of isotope effects on ECRH plasma in LHD. Plasma Physics and Controlled Fusion. 2020 Jan 1;62(2):024006. doi: 10.1088/1361-6587/ab5bae

Author

Morisaki, T. ; Tanaka, K. ; Nakata, M. et al. / Extended investigations of isotope effects on ECRH plasma in LHD. In: Plasma Physics and Controlled Fusion. 2020 ; Vol. 62, No. 2.

BibTeX

@article{cef0d38ccd494ec1b2c15717ae1364ae,
title = "Extended investigations of isotope effects on ECRH plasma in LHD",
abstract = "Isotope effects of ECRH plasma in LHD were investigated in detail. A clear difference of transport and turbulence characteristics in H and D plasmas was found in the core region, with normalized radius ρ < 0.8 in high collisionality regime. On the other hand, differences of transport and turbulence were relatively small in low collisionality regime. Power balance analysis and neoclassical calculation showed a reduction of the anomalous contribution to electron and ion transport in D plasma compared with H plasma in the high collisionality regime. In core region, density modulation experiments also showed more reduced particle diffusion in D plasma than in H plasma, in the high collisionality regime. Ion scale turbulence was clearly reduced at ρ < 0.8 in high collisionality regime in D plasma compared with H plasma. The gyrokinetic linear analyses showed that the dominant instability ρ = 0.5 and 0.8 were ion temperature gradient mode (ITG). The linear growth rate of ITG was reduced in D plasma than in H plasma in high collisionality regime. This is due to the lower normalized ITG and density gradient. More hollowed density profile in D plasma is likely to be the key control parameter. Present analyses suggest that anomalous process play a role to make hollower density profiles in D plasma rather than neoclassical process. Electron scale turbulence were also investigated from the measurements and linear gyrokinetic simulations.",
keywords = "energy transport, isotope effect, particle transport, stellarator, turbulence, CONFINEMENT, PARTICLE-TRANSPORT",
author = "T. Morisaki and K. Tanaka and M. Nakata and Y. Ohtani and T. Tokuzawa and H. Yamada and F. Warmer and M. Nunami and S. Satake and T. Tala 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. 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 = "2020",
month = jan,
day = "1",
doi = "10.1088/1361-6587/ab5bae",
language = "English",
volume = "62",
journal = "Plasma Physics and Controlled Fusion",
issn = "0741-3335",
publisher = "IOP Publishing Ltd.",
number = "2",

}

RIS

TY - JOUR

T1 - Extended investigations of isotope effects on ECRH plasma in LHD

AU - Morisaki, T.

AU - Tanaka, K.

AU - Nakata, M.

AU - Ohtani, Y.

AU - Tokuzawa, T.

AU - Yamada, H.

AU - Warmer, F.

AU - Nunami, M.

AU - Satake, S.

AU - Tala, T.

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 - 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 - 2020/1/1

Y1 - 2020/1/1

N2 - Isotope effects of ECRH plasma in LHD were investigated in detail. A clear difference of transport and turbulence characteristics in H and D plasmas was found in the core region, with normalized radius ρ < 0.8 in high collisionality regime. On the other hand, differences of transport and turbulence were relatively small in low collisionality regime. Power balance analysis and neoclassical calculation showed a reduction of the anomalous contribution to electron and ion transport in D plasma compared with H plasma in the high collisionality regime. In core region, density modulation experiments also showed more reduced particle diffusion in D plasma than in H plasma, in the high collisionality regime. Ion scale turbulence was clearly reduced at ρ < 0.8 in high collisionality regime in D plasma compared with H plasma. The gyrokinetic linear analyses showed that the dominant instability ρ = 0.5 and 0.8 were ion temperature gradient mode (ITG). The linear growth rate of ITG was reduced in D plasma than in H plasma in high collisionality regime. This is due to the lower normalized ITG and density gradient. More hollowed density profile in D plasma is likely to be the key control parameter. Present analyses suggest that anomalous process play a role to make hollower density profiles in D plasma rather than neoclassical process. Electron scale turbulence were also investigated from the measurements and linear gyrokinetic simulations.

AB - Isotope effects of ECRH plasma in LHD were investigated in detail. A clear difference of transport and turbulence characteristics in H and D plasmas was found in the core region, with normalized radius ρ < 0.8 in high collisionality regime. On the other hand, differences of transport and turbulence were relatively small in low collisionality regime. Power balance analysis and neoclassical calculation showed a reduction of the anomalous contribution to electron and ion transport in D plasma compared with H plasma in the high collisionality regime. In core region, density modulation experiments also showed more reduced particle diffusion in D plasma than in H plasma, in the high collisionality regime. Ion scale turbulence was clearly reduced at ρ < 0.8 in high collisionality regime in D plasma compared with H plasma. The gyrokinetic linear analyses showed that the dominant instability ρ = 0.5 and 0.8 were ion temperature gradient mode (ITG). The linear growth rate of ITG was reduced in D plasma than in H plasma in high collisionality regime. This is due to the lower normalized ITG and density gradient. More hollowed density profile in D plasma is likely to be the key control parameter. Present analyses suggest that anomalous process play a role to make hollower density profiles in D plasma rather than neoclassical process. Electron scale turbulence were also investigated from the measurements and linear gyrokinetic simulations.

KW - energy transport

KW - isotope effect

KW - particle transport

KW - stellarator

KW - turbulence

KW - CONFINEMENT

KW - PARTICLE-TRANSPORT

UR - http://www.scopus.com/inward/record.url?scp=85081317971&partnerID=8YFLogxK

U2 - 10.1088/1361-6587/ab5bae

DO - 10.1088/1361-6587/ab5bae

M3 - Article

AN - SCOPUS:85081317971

VL - 62

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

SN - 0741-3335

IS - 2

M1 - 024006

ER -

ID: 23827613