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.

中文翻译：

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存在漂移波湍流时燃烧等离子体中离子声模式的放大

研究了存在漂移波湍流场的燃烧等离子体中高频离子声波的产生。燃烧等离子体的等离子体不均匀性支持漂移波湍流。这种低频波现象在与聚变反应堆α粒子的能量交换过程中起着至关重要的作用。当加速的等离子体粒子通过调制场非线性地将它们的能量传递给离子声波时，燃烧等离子体中离子声波的频率可能被放大。考虑到非均匀等离子体的离子分布函数，我们已经使用 Vlasov 方程评估了由于漂移波湍流引起的分布函数的波动部分。我们还得到了由于调制波和非线性离子声波引起的离子分布函数的非线性波动部分。