On alpha particle effects in tokamaks with a current hole

被引：47

作者：

Schneider, M ^{[1
]}

Eriksson, LG ^{[1
]}

Basiuk, V ^{[1
]}

Imbeaux, F ^{[1
]}

机构：

[1] CEA, EURATOM Assoc, DSM, DRFC, F-13108 St Paul Les Durance, France

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 2005年 / 47卷 / 12期

关键词：

D O I：

10.1088/0741-3335/47/12/002

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：

During operation with so-called advanced scenarios in a tokamak, current holes, characterized by a virtually current-free central region, often develop. They might also be difficult to avoid, at least transiently, in reactor plasmas. This paper is focused on how the presence of a current hole affects quantities related to fusion born alpha particles. In particular, the anisotropy in the fast ion pressure, the current they generate and the profile of the power they transfer to the thermal plasma via collisions. Possible implications for the confinement of the alpha particles and the performance of the plasma are discussed. Furthermore, the results of a comparison between simulations and gamma-ray data from recent JET trace tritium experiments with current holes are presented.

引用

页码：2087 / 2106

页数：20

共 26 条

[1] Simulations of steady-state scenarios for Tore Supra using the CRONOS code [J].

Basiuk, V ;

Artaud, JF ;

Imbeaux, F ;

Litaudon, X ;

Bécoulet, A ;

Eriksson, LG ;

Hoang, GT ;

Huysmans, G ;

Mazon, D ;

Moreau, D ;

Peysson, Y .

NUCLEAR FUSION, 2003, 43 (09) :822-830

[2] MONTE-CARLO EVALUATION OF TRANSPORT-COEFFICIENTS [J].

BOOZER, AH ;

KUOPETRAVIC, G .

PHYSICS OF FLUIDS, 1981, 24 (05) :851-859

[3]

BOSCH HS, 1992, NUCL FUSION, V32

[4]

BRYSAK H, 1973, PLASMA PHYS, V76, P611

[5] A TOPOLOGICAL APPROACH TO THE PROBLEM OF CHARGED-PARTICLE TRAJECTORIES IN A TOROIDAL AXISYMMETRICAL CONFIGURATION [J].

DOLOC, CM ;

MARTIN, G .

PHYSICS OF PLASMAS, 1995, 2 (10) :3655-3666

[6] Drift orbit topology of fast ions in tokamaks [J].

Egedal, J .

NUCLEAR FUSION, 2000, 40 (09) :1597-1610

[7] Dynamics of energetic ion orbits in magnetically confined plasmas [J].

Eriksson, LG ;

Porcelli, F .

PLASMA PHYSICS AND CONTROLLED FUSION, 2001, 43 (04) :R145-R182

[8]

Fujita T, 2001, PHYS REV LETT, V87, DOI [10.1103/PhysRevLett.87.245001, 10.1103/PhysRevLett.87.085001]

[9]

*GAO FDR, 5010713 GAOFDR

[10] Observation of zero current density in the core of JET discharges with lower hybrid heating and current drive [J].

Hawkes, NC ;

Stratton, BC ;

Tala, T ;

Challis, CD ;

Conway, G ;

DeAngelis, R ;

Giroud, C ;

Hobirk, J ;

Joffrin, E ;

Lomas, P ;

Lotte, P ;

Mailloux, J ;

Mazon, D ;

Rachlew, E ;

Reyes-Cortes, S ;

Solano, E ;

Zastrow, KD .

PHYSICAL REVIEW LETTERS, 2001, 87 (11) :art. no.-115001

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