A new phantom, designed and manufactured for modulation transfer function (MTF) calculations is presented in this work. The phantom has a star‐bar pattern and is manufactured in stainless steel. Modulation transfer function determinations are carried out with the new phantom and with an edge phantom to compare their performance and to compare them with previous theoretical predictions.

中文翻译：

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专为X射线成像系统中的MTF计算而设计的新型星型幻像的性能。

在这项工作中介绍了一种为调制传递函数（MTF）计算而设计和制造的新模型。幻影具有星形图案，并由不锈钢制成。使用新体模和边缘体模进行调制传递函数确定，以比较其性能并将其与以前的理论预测进行比较。