The changes of plasma radiative properties in the presence of oscillating electric fields can be used for a diagnostic of the electric fields in the edge plasma. We present the modelling of hydrogen line shapes emitted in edge plasmas where powerful radio frequency (RF) waves are launched. RF waves are used for plasma heating and current drive, and understanding the details of their coupling to the plasma is an important issue in tokamak physics. Our model relies on a computer simulation of the plasma microfield and retains the emitter quantum evolution by solving numerically the Schrödinger equation. We calculate Lyman and Balmer lines of hydrogen in conditions where a significant part of the central intensity is transferred to satellite components under the simultaneous effects of the oscillating field and stochastic plasma microfield.

中文翻译：

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边缘等离子体中振荡电场的光谱诊断

存在振荡电场时等离子体辐射特性的变化可用于诊断边缘等离子体中的电场。我们展示了在发射强大射频 (RF) 波的边缘等离子体中发射的氢线形状的建模。射频波用于等离子体加热和电流驱动，了解它们与等离子体耦合的细节是托卡马克物理学中的一个重要问题。我们的模型依赖于等离子体微场的计算机模拟，并通过数值求解薛定谔方程来保留发射极量子演化。我们在振荡场和随机等离子体微场的同时影响下，中心强度的很大一部分转移到卫星组件的条件下计算了 Lyman 和 Balmer 氢谱线。