Single-shot X-ray Dark-field Tomography

• DOI: 10.48550/arxiv.2308.09465
• Publication Date: 2023-01-01
• Authors: Adam Doherty; Ian Buchanan; Alberto Astolfo; Savvas Savvidis; M Gerli; Antonio Citro; Alessandro Olivo; Marco Endrizzi
• Keywords: Dark field microscopy

X-ray dark-field imaging creates a representation of the sample where contrast is generated by subresolution features within volume under inspection. These are detected local measurement radiation field's angular distribution, and how it affected interaction with matter. typically requires taking multiple exposures for separating contributions to intensity arising from scattering, refraction attenuation; procedure often called phase retrieval. We propose an approach retrieve image single shot. demonstrate method using laboratory-based, rotating anode tube system without need coherent or high-resolution detector. This reduces complexity data acquisition, enabling faster scanning increasing dose efficiency. Moreover, our problem dimensionality one, substantial implications data-intensive applications like tomography. The model assumes homogeneous material, we show this valid hypothesis soft biological tissues reconstructing tomography images sets containing shot per view. believe be broadly applicable relevant many implementations, including fast radiography, directional use pulsed sources.