### 抄録

The method of self-sustained turbulence is applied to the tokamak plasma, incorporating the effect of an inhomogeneous radial electric field. The transport coefficient is derived, making a bridge between L- and H-phase plasmas. It is possible to construct a unified transport model of the L- and H-mode phases. The anomalous transport coefficients are obtained in a unified and explicit form in terms of profile parameters such as the plasma pressure gradient, the magnetic shear, the shear and curvature of the radial electric field. Strong reductions of the thermal conductivity, χ, the electron and ion viscosities, μ_{e} and μ, and the turbulent level in the H-phase plasma are explained. Furthermore, an additional stability window due to E_{r}′ is discovered in the higher pressure-gradient regime. The anomalous ion viscosity determines Δ, the typical scale length or E_{r}. Self-consistent solutions of Δ and μ are discussed.

元の言語 | 英語 |
---|---|

ページ（範囲） | 1743-1762 |

ページ数 | 20 |

ジャーナル | Plasma Physics and Controlled Fusion |

巻 | 38 |

発行部数 | 10 |

DOI | |

出版物ステータス | 出版済み - 12 1 1996 |

### Fingerprint

### All Science Journal Classification (ASJC) codes

- Nuclear Energy and Engineering
- Condensed Matter Physics

### これを引用

*Plasma Physics and Controlled Fusion*,

*38*(10), 1743-1762. https://doi.org/10.1088/0741-3335/38/10/004

**Self-sustained turbulence and H-mode confinement in toroidal plasmas.** / Itoh, Sanae I.; Itoh, Kimitaka; Yagi, Masatoshi; Fukuyama, Atsushi.

研究成果: ジャーナルへの寄稿 › 記事

*Plasma Physics and Controlled Fusion*, 巻. 38, 番号 10, pp. 1743-1762. https://doi.org/10.1088/0741-3335/38/10/004

}

TY - JOUR

T1 - Self-sustained turbulence and H-mode confinement in toroidal plasmas

AU - Itoh, Sanae I.

AU - Itoh, Kimitaka

AU - Yagi, Masatoshi

AU - Fukuyama, Atsushi

PY - 1996/12/1

Y1 - 1996/12/1

N2 - The method of self-sustained turbulence is applied to the tokamak plasma, incorporating the effect of an inhomogeneous radial electric field. The transport coefficient is derived, making a bridge between L- and H-phase plasmas. It is possible to construct a unified transport model of the L- and H-mode phases. The anomalous transport coefficients are obtained in a unified and explicit form in terms of profile parameters such as the plasma pressure gradient, the magnetic shear, the shear and curvature of the radial electric field. Strong reductions of the thermal conductivity, χ, the electron and ion viscosities, μe and μ, and the turbulent level in the H-phase plasma are explained. Furthermore, an additional stability window due to Er′ is discovered in the higher pressure-gradient regime. The anomalous ion viscosity determines Δ, the typical scale length or Er. Self-consistent solutions of Δ and μ are discussed.

AB - The method of self-sustained turbulence is applied to the tokamak plasma, incorporating the effect of an inhomogeneous radial electric field. The transport coefficient is derived, making a bridge between L- and H-phase plasmas. It is possible to construct a unified transport model of the L- and H-mode phases. The anomalous transport coefficients are obtained in a unified and explicit form in terms of profile parameters such as the plasma pressure gradient, the magnetic shear, the shear and curvature of the radial electric field. Strong reductions of the thermal conductivity, χ, the electron and ion viscosities, μe and μ, and the turbulent level in the H-phase plasma are explained. Furthermore, an additional stability window due to Er′ is discovered in the higher pressure-gradient regime. The anomalous ion viscosity determines Δ, the typical scale length or Er. Self-consistent solutions of Δ and μ are discussed.

UR - http://www.scopus.com/inward/record.url?scp=0030257280&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030257280&partnerID=8YFLogxK

U2 - 10.1088/0741-3335/38/10/004

DO - 10.1088/0741-3335/38/10/004

M3 - Article

AN - SCOPUS:0030257280

VL - 38

SP - 1743

EP - 1762

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

SN - 0741-3335

IS - 10

ER -