The DQE is generally accepted as the main figure of merit for the comparison between electron detectors, and most of the time given as a unique number at the Nyquist frequency while it is known to vary with electron dose. It is usually estimated thanks to a method improved by McMullan in 2009. The purpose of this work is to analyse and to criticize this DQE extraction method on the basis of measurement and model results, and to give recommendations for fair comparison between detectors, wondering if the DQE is the right figure of merit for electron detectors.

中文翻译：

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应用于电子探测器的 DQE 估计方法的局限性和缺点。

DQE 通常被认为是电子探测器之间比较的主要品质因数，并且大多数时候以奈奎斯特频率处的唯一数字给出，而已知它会随电子剂量而变化。通常是通过 McMullan 在 2009 年改进的方法来估计的。这项工作的目的是在测量和模型结果的基础上分析和批评这种 DQE 提取方法，并为检测器之间的公平比较提供建议，想知道是否DQE 是电子探测器的正确品质因数。