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
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
收藏
页码:290 / 293
页数:4
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