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A minimization procedure for estimating the power deposition and heat transport from the temperature response to auxiliary power modulation

机译：用于估算从温度响应到辅助功率调制的功率沉积和热量传输的最小化过程

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摘要

A method commonly used for determining where externally launched power is absorbed inside a tokamak plasma is to examine the temperature response to modulation of the launched power. Strictly speaking, this response merely provides a first good guess of the actual power deposition rather than the deposition profile itself: not only local heat sources but also heat losses and heat wave propagation affect the temperature response at a given position. Making use of this, at first sight non-desirable, effect modulation becomes a useful tool for conducting transport studies. In this paper a minimization method based on a simple conduction-convection model is proposed for deducing the power deposition and transport characteristics from the experimentally measured (electron) energy density response to a modulation of the auxiliary heating power. An L-mode JET example illustrates the potential of the technique.
机译：通常用于确定托卡马克等离子体内部吸收了外部发射功率的方法是检查对发射功率调制的温度响应。严格来说，此响应仅是对实际功率沉积的初步猜测，而不是沉积轮廓本身：不仅是局部热源，而且热量损失和热波传播也会影响给定位置的温度响应。乍一看，利用这种效果，效果调制成为进行运输研究的有用工具。本文提出了一种基于简单传导对流模型的最小化方法，用于根据实验测量的（电子）能量密度响应辅助加热功率的调制来推导功率沉积和传输特性。 L模式JET示例说明了该技术的潜力。

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