论文标题
一维相关的能量粒子传输的一维还原模型
One dimensional reduced model for ITER relevant energetic particle transport
论文作者
论文摘要
我们设置了一个映射过程，能够将快速离子的径向曲线的演变转化为与环形Alfvéneigenmodes相互作用，并将其相互作用为等效的一个维度颠簸系统的动力学。我们将此映射技术应用于复制ITER相关的模拟，该模拟清楚地概述了与扩散的准线性（QL）模型的偏差。我们的分析证明了一维束系动力学的能力，可以预测非线性杂交Ligka/Hagis模拟的相关特征。特别是，我们清楚地确定了与QL进化曲线的偏差是如何由于雪崩过程的存在。还通过基于运动常数的相空间切片来解决有关降低性降低性的详细分析。在结论中，我们概述了该过程的主要关键和结果，必须令人满意地解决这些过程，以便对观察到的Tokamak设备中观察到的即将到来的通量进行定量预测。
We set up a mapping procedure able to translate the evolution of the radial profile of fast ions, interacting with Toroidal Alfvén Eigenmodes, into the dynamics of an equivalent one dimensional bump-on-tail system. We apply this mapping technique to reproduce ITER relevant simulations, which clearly outlined deviations from the diffusive quasi-linear (QL) model. Our analysis demonstrates the capability of the one-dimensional beam-plasma dynamics to predict the relevant features of the non-linear hybrid LIGKA/HAGIS simulations. In particular, we clearly identify how the deviation from the QL evolutive profiles is due to the presence of avalanche processes. A detailed analysis regarding the reduced dimensionality is also addressed, by means of phase-space slicing based on constants of motion. In the conclusions, we outline the main criticalities and outcomes of the procedure, which must be satisfactorily addressed to make quantitative prediction on the observed outgoing fluxes in a Tokamak device.
