Abstract We present a code for the large-scale data analysis of electron cyclotron emission (ECE) measurements from magnetized plasmas called ECRad – the Electron Cyclotron Radiation transport model for Advanced Data analysis. Its key features are low computational cost, high robustness and the capability to predict ECE spectra of plasmas with non-thermal electron populations. This is accomplished by combining the absorption coefficient given by Albajar et al. (2007) and a corresponding emissivity for the radiation transport with geometrical optics ray tracing for the computation of the diagnostic line of sight. Another important aspect of ECRad is that it has passed a large amount of verification tests against real measurements by conventional, oblique and ECE imaging diagnostics. This paper explains the physical model of ECRad and its implementation. Furthermore, it is discussed how the code can be used for the inference of the electron temperature from ECE measurements and how an oblique ECE diagnostic can be cross-calibrated with ECRad.

中文翻译：

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ECRad：一种电子回旋辐射传输求解器，用于热和非热聚变等离子体中的高级数据分析

摘要 我们提出了一个代码，用于对来自磁化等离子体的电子回旋辐射 (ECE) 测量进行大规模数据分析，称为 ECRad——用于高级数据分析的电子回旋辐射传输模型。其主要特点是计算成本低、鲁棒性高以及能够预测具有非热电子群的等离子体的 ECE 光谱。这是通过结合 Albajar 等人给出的吸收系数来实现的。(2007) 以及用于计算诊断视线的几何光学射线追踪的辐射传输的相应发射率。ECRad 的另一个重要方面是它已经通过了大量的验证测试，与常规、倾斜和 ECE 成像诊断的实际测量结果相比较。本文解释了ECRad的物理模型及其实现。此外，还讨论了如何使用代码从 ECE 测量中推断电子温度，以及如何使用 ECRad 交叉校准倾斜 ECE 诊断。