Abstract

In modern large-sized tokamaks and those under construction, for example, in ITER, when measuring the average plasma electron density using the refractometry technique, it becomes necessary to study different effects that affect the measurement accuracy. This paper presents the results from studies of the high-temperature effects that can affect the interpretation of delay time measurements of the probing microwave signal in the ITER refractometry diagnostics. The criteria for applicability of different plasma models (“cold” plasma, modified “cold” plasma, and “hot plasma”) are obtained for calculating the plasma refractive index and interpreting the delay times that will be measured using the refractometry diagnostics of the ITER plasma. In the second article, based on the results obtained in this article, we will consider the influence of the high-temperature effects on the accuracy of determining the mean density using the refractometry diagnostics.

中文翻译：

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高温效应对 ITER 折射计测量中探测波时延解释的影响

摘要

在现代大型托卡马克和正在建造的托卡马克装置中，例如在 ITER 中，当使用折射法测量平均等离子体电子密度时，有必要研究影响测量精度的不同影响。本文介绍了高温效应研究的结果，高温效应会影响 ITER 折射仪诊断中探测微波信号延迟时间测量的解释。获得了不同等离子体模型（“冷”等离子体、改进的“冷”等离子体和“热等离子体”）的适用性标准，用于计算等离子体折射率并解释将使用 ITER 的折射计诊断测量的延迟时间等离子体。在第二篇文章中，基于本文获得的结果，