Noise properties of multi-combination information in x-ray grating-based phase-contrast imaging**Project supported by the National Natural Science Foundation of China (Grant No. 11535015), the National Special Foundation of China for Major Science Instrument (Grant No. 61227802), the National Natural Science Foundation of China (Grant Nos. 61405120, 61605119, 61571305, and 11674232), the Natural Science Foundation of Shenzhen, China (Grant No. JCYJ20170302142617703), and

Abstract

Grating-based x-ray phase contrast imaging has attracted increasing interest in recent decades as multimodal and laboratory source usable method. Specific efforts have been focused on establishing a new extraction method to perform practical applications. In this work, noise properties of multi-combination information of newly established information extraction method, so-called angular signal radiography method, are investigated to provide guidelines for targeted and specific applications. The results show that how multi-combination of images can be used in targeted practical applications to obtain a high-quality image in terms of signal-to-noise ratio. Our conclusions can also hold true for upcoming targeted practical applications such as biomedical imaging, non-destructive imaging, and materials science.