Confinement of energetic ions in a tokamak plasma at magnetic field in the range of 0.7-1.0 T

被引：8

作者：

Kornev, V. A. ^{[1
]}

Askinazi, L. G. ^{[1
]}

Vildjunas, M. I. ^{[1
]}

Zhubr, N. A. ^{[1
]}

Krikunov, S. V. ^{[1
]}

Lebedev, S. V. ^{[1
]}

Razumenko, D. V. ^{[1
]}

Rozhdestvensky, V. V. ^{[1
]}

Tukachinsky, A. S. ^{[1
]}

机构：

[1] Russian Acad Sci, AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia

来源：

TECHNICAL PHYSICS LETTERS | 2013年 / 39卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

SPHERICAL TOKAMAK;

D O I：

10.1134/S106378501303022X

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have experimentally studied the influence of toroidal magnetic field (B (T)) and plasma current (I (p)) on the capture and confinement of energetic ions (EIs) formed upon ionization of a neutral beam injected in a tokamak. Based on the results of measurements of the flux of 2.45-MeV fusion neutrons, it is concluded that the amount of EIs significantly grows with increasing B (T) from 0.7 to 1.0 T and Ip from 140 to 180 kA. In addition to the classical Coulomb slowing down, a supplementary channel of EI losses is found that accounts for a 15% decrease in their confinement time.

引用

页码：290 / 293

页数：4

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