Synthetic aperture X-ray ghost imaging with sub-micron pixel resolution

Le résumé fourni par la source

Synthetic aperture X-ray ghost imaging (SAXGI) is proposed to achieve megapixel X-ray ghost imaging together with a reduced number of measurements. As the bucket detector array is artificially generated by post-pixel-binning of the images collected with the same detector as that in the reference arm, the unique advantages of SAXGI are not verified experimentally. In this paper, we developed a systematic solution of the experimental implementation of SAXGI, with the automatic interchange of 2× and 20× optical magnification of the detector for object and reference signal acquisition respectively, together with electronic pixel-binning of the detector. Taking the experimentally achieved 40×40 blocks as the bucket array in the object arm and addressing the challenge of image registration among the reference and object signals, we successfully achieved SAXGI imaging of 1960×1920 pixels with a pixel size of 0.325 µm. By developing a set of protocols improved in each part of the experiments, we can implement the data acquisition process of SAXGI in a few minutes, which is anticipated to facilitate the further application of the SAXGI method in related research fields.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.