Effect of radial electric field and bulk plasma velocity shear on ion thermal transport in Heliotron-E

被引：13

作者：

Ida, K ^{[1
]}

Kondo, K ^{[1
]}

Nagasaki, K ^{[1
]}

Hamada, T ^{[1
]}

Hidekuma, S ^{[1
]}

Sano, F ^{[1
]}

Zushi, H ^{[1
]}

Mizuuchi, T ^{[1
]}

Okada, H ^{[1
]}

Besshou, S ^{[1
]}

Funaba, H ^{[1
]}

Watanabe, K ^{[1
]}

Obiki, T ^{[1
]}

机构：

[1] KYOTO UNIV,PLASMA PHYS LAB,UJI,KYOTO 611,JAPAN

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 1996年 / 38卷 / 08期

关键词：

D O I：

10.1088/0741-3335/38/8/050

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The effect of radial electric field and velocity shear on thermal transport is studied in Heliotron-E. When neutral beams are injected into the target plasma produced by electron cyclotron heating (high T-i mode), or an ice pellet is injected into an NBI plasma (pellet injection mode), the central ion temperature T-i(0) increases in time up to 0.7-0.8 keV. These high T-i plasmas are characterized by a peaked ion temperature profile and are associated with a peaked electron density profile produced by neutral beam fuelling with low wall recycling, or by pellet fuelling. The global energy confinement is improved compared with L-mode plasmas by a factor of 1.4 for the same line-averaged electron density. The observed improvement in ion heat transport is related to the radial electric field shear rather than to the rotation velocity shear in the bulk plasma.

引用

页码：1433 / 1437

页数：5

共 50 条

[21] Characterization of the radial electric field and edge velocity shear in Wendelstein 7-X
Carralero, D.
Estrada, T.
Windisch, T.
Velasco, J. L.
Alonso, J. A.
Beurskens, M.
Bozhenkov, S.
Damm, H.
Fuchert, G.
Gao, Y.
Jakubowski, M.
Nieman, H.
Pablant, N.
Pasch, E.
Weir, G.
NUCLEAR FUSION, 2020, 60 (10)
[22] TRANSPORT MODELING INCLUDING RADIAL ELECTRIC-FIELD AND PLASMA ROTATION
FUKUYAMA, A
FUJI, Y
ITOH, K
ITOH, SI
PLASMA PHYSICS AND CONTROLLED FUSION, 1994, 36 (07) : A159 - A164
[23] VELOCITY SHEAR ION-CYCLOTRON INSTABILITY WITH PERPENDICULAR AC ELECTRIC FIELD
Pandey, R. S.
Srivastava, U. C.
Pandey, R. P.
Prasad, B. B.
Hariom
PROGRESS IN ELECTROMAGNETICS RESEARCH M, 2008, 3 : 177 - 191
[24] INFLUENCE OF RADIAL ELECTRIC FIELD ON MAGNETOMECHANICAL EFFECT IN A NONEQUILIBRIUM PLASMA
URAZAKOV, EI
RADIO ENGINEERING AND ELECTRONIC PHYSICS-USSR, 1966, 11 (03): : 468 - &
[25] A new paradigm for radial ion plasma transport in axisymmetric magnetic field
Sokolov, V.
Sen, A. K.
FUSION SCIENCE AND TECHNOLOGY, 2007, 51 (2T) : 100 - 102
[26] Effect of Symmetry/Asymmetry of Shear Rotation of a Plasma Column in a Radial Electric Field on the Level of Turbulent Density Fluctuations
Karbushev, Dmitry N.
Chirkov, Alexei Yu.
SYMMETRY-BASEL, 2023, 15 (04):
[27] Neoclassical radial electric field and ion heat flux in the presence of the transport barrier
Kiviniemi, TP
Heikkinen, JA
Peeters, AG
CONTRIBUTIONS TO PLASMA PHYSICS, 2002, 42 (2-4) : 236 - 240
[28] On the Origin of Steep and Localized Radial Electric Field in the Transport Barrier at Plasma Edge
Itoh, K.
Itoh, S. -I.
Kobayashi, T.
Kamiya, K.
Ido, T.
Tokuzawa, T.
Inagaki, S.
Kasuya, N.
CONTRIBUTIONS TO PLASMA PHYSICS, 2016, 56 (6-8) : 522 - 527
[29] Dynamic transport simulation code including plasma rotation and radial electric field
Honda, M.
Fukuyama, A.
JOURNAL OF COMPUTATIONAL PHYSICS, 2008, 227 (05) : 2808 - 2844
[30] Electrostatic turbulence and transport in the velocity shear layer of a reversed field pinch plasma
Antoni, V
Cavazzana, R
Desideri, D
Martines, E
Serianni, G
Tramontin, L
PHYSICAL REVIEW LETTERS, 1998, 80 (19) : 4185 - 4188

← 1 2 3 4 5 →