Numerical analysis of helium ash removal by using ICRH-driven ripple transport

被引：9

作者：

Hamamatsu, K ^{[1
]}

Chang, CS

Takizuka, T

Azumi, M

Hirayama, T

Cohen, S

Tani, T

机构：

[1] Japan Atom Energy Res Inst, Naka Fus Res Estab, Naka, Ibaraki 31101, Japan

[2] NYU, Courant Inst Math Sci, New York, NY 10012 USA

[3] Korea Adv Inst Sci & Technol, Taejon 305701, South Korea

[4] Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 1998年 / 40卷 / 02期

关键词：

D O I：

10.1088/0741-3335/40/2/007

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：

Helium ash removal across the last closed flux surfaces in a deuterium-tritium fuelled tokamak plasma is studied using an orbit-following Monte Carlo simulation. Ripple transport of helium ash ions is induced by ion cyclotron resonance heating (ICRH) of short-lived He(+) ions, which are produced by charge exchange of He(2+) with incoming neutral species. It is found that the required ICRH power in an ITER grade tokamak plasma is 10-15 MW and the helium transport to the first wall is localized within an area given by 1.3 m in the toroidal direction and 0.7 m in the poloidal direction.

引用

页码：255 / 270

页数：16

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