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首页> 外文期刊>Physical review letters >Strongly Driven Frequency-Sweeping Events in Plasmas
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Strongly Driven Frequency-Sweeping Events in Plasmas

机译:等离子体中的强驱动扫频事件

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摘要

A generic model of a kinetic plasma formed from a source and sink is presented which without instability would form a strongly unstable state due to a single mode. Instead, the resulting wave-particle resonant interaction maintains the distribution near a marginally stable state through the continual production of fast frequency-sweeping modes that sweep unidirectionally (upward in our case) throughout the energy-inverted region of the distribution function. The energy of these modes can be channeled to the background plasma through wave dissipation and, in our particular example, one quarter of the injected energy is available to be channeled.
机译:提出了由源和汇形成的动力学等离子体的通用模型,该模型在没有不稳定性的情况下会由于单一模式而形成强烈的不稳定状态。取而代之的是,所产生的波粒共振相互作用通过连续产生快速扫频模式而将分布保持在接近边缘稳定状态,该扫频模式在分布函数的能量反转区域中单向(在我们的情况下为向上)扫动。这些模式的能量可以通过波耗散被引导到背景等离子体,并且在我们的特定示例中,可以注入四分之一的注入能量。

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