On Amplification of Ion-Acoustic Mode in Burning Plasma in Presence of Drift Wave Turbulence

被引：3

作者：

Deka, P. N. ^{[1
]}

Deka, J. K. ^{[2
]}

机构：

[1] Dibrugarh Univ, Dept Math, Dibrugarh 786004, Assam, India

[2] Ghanakanta Baruah Coll, Dept Math, Morigaon 782105, Assam, India

来源：

JOURNAL OF FUSION ENERGY | 2018年 / 37卷 / 06期

关键词：

Burning plasma; Drift wave turbulence; Ion-acoustic wave; Wave-particle interaction; ALPHA-PARTICLES; TRANSPORT; TOKAMAK;

D O I：

10.1007/s10894-018-0198-6

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Generation of high frequency ion-acoustic wave in burning plasmas is investigated in presence of drift wave turbulence field. Drift wave turbulence is supported by plasma inhomogeneity of a burning plasma. This low frequency wave phenomenon is playing a crucial role in energy exchange process with alpha particles of fusion reactors. Frequency of ion-acoustic wave in burning plasma may be amplified when the accelerated plasma particles transfer their energy to ion-acoustic wave nonlinearly through a modulated field. Considering an ion distribution function for inhomogeneous plasma, we have evaluated fluctuating parts of distribution function due to drift wave turbulence using Vlasov equation. We have also obtained nonlinear fluctuating parts of ion distribution function due to modulated wave as well as nonlinear ion-acoustic wave. We have estimated the growth rate of ion-acoustic wave using nonlinear dispersion relation for ion-acoustic wave.

引用

页码：301 / 307

页数：7

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